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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-05 12:31:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-05 12:31:59 -0700
commit5518b69b76680a4f2df96b1deca260059db0c2de (patch)
treef33cd1519c8efb4590500f2f9617400be233238c /drivers/net/ethernet/netronome/nfp
parentMerge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 (diff)
parentMerge branch 'phy-dp83867-workaround-incorrect-RX_CTRL-pin-strap' (diff)
downloadwireguard-linux-5518b69b76680a4f2df96b1deca260059db0c2de.tar.xz
wireguard-linux-5518b69b76680a4f2df96b1deca260059db0c2de.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "Reasonably busy this cycle, but perhaps not as busy as in the 4.12 merge window: 1) Several optimizations for UDP processing under high load from Paolo Abeni. 2) Support pacing internally in TCP when using the sch_fq packet scheduler for this is not practical. From Eric Dumazet. 3) Support mutliple filter chains per qdisc, from Jiri Pirko. 4) Move to 1ms TCP timestamp clock, from Eric Dumazet. 5) Add batch dequeueing to vhost_net, from Jason Wang. 6) Flesh out more completely SCTP checksum offload support, from Davide Caratti. 7) More plumbing of extended netlink ACKs, from David Ahern, Pablo Neira Ayuso, and Matthias Schiffer. 8) Add devlink support to nfp driver, from Simon Horman. 9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa Prabhu. 10) Add stack depth tracking to BPF verifier and use this information in the various eBPF JITs. From Alexei Starovoitov. 11) Support XDP on qed device VFs, from Yuval Mintz. 12) Introduce BPF PROG ID for better introspection of installed BPF programs. From Martin KaFai Lau. 13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann. 14) For loads, allow narrower accesses in bpf verifier checking, from Yonghong Song. 15) Support MIPS in the BPF selftests and samples infrastructure, the MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David Daney. 16) Support kernel based TLS, from Dave Watson and others. 17) Remove completely DST garbage collection, from Wei Wang. 18) Allow installing TCP MD5 rules using prefixes, from Ivan Delalande. 19) Add XDP support to Intel i40e driver, from Björn Töpel 20) Add support for TC flower offload in nfp driver, from Simon Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub Kicinski, and Bert van Leeuwen. 21) IPSEC offloading support in mlx5, from Ilan Tayari. 22) Add HW PTP support to macb driver, from Rafal Ozieblo. 23) Networking refcount_t conversions, From Elena Reshetova. 24) Add sock_ops support to BPF, from Lawrence Brako. This is useful for tuning the TCP sockopt settings of a group of applications, currently via CGROUPs" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits) net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap cxgb4: Support for get_ts_info ethtool method cxgb4: Add PTP Hardware Clock (PHC) support cxgb4: time stamping interface for PTP nfp: default to chained metadata prepend format nfp: remove legacy MAC address lookup nfp: improve order of interfaces in breakout mode net: macb: remove extraneous return when MACB_EXT_DESC is defined bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case bpf: fix return in load_bpf_file mpls: fix rtm policy in mpls_getroute net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t net, ax25: convert ax25_route.refcount from atomic_t to refcount_t net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t ...
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp')
-rw-r--r--drivers/net/ethernet/netronome/nfp/Makefile26
-rw-r--r--drivers/net/ethernet/netronome/nfp/bpf/jit.c (renamed from drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c)4
-rw-r--r--drivers/net/ethernet/netronome/nfp/bpf/main.c160
-rw-r--r--drivers/net/ethernet/netronome/nfp/bpf/main.h (renamed from drivers/net/ethernet/netronome/nfp/nfp_bpf.h)23
-rw-r--r--drivers/net/ethernet/netronome/nfp/bpf/offload.c (renamed from drivers/net/ethernet/netronome/nfp/nfp_net_offload.c)61
-rw-r--r--drivers/net/ethernet/netronome/nfp/bpf/verifier.c (renamed from drivers/net/ethernet/netronome/nfp/nfp_bpf_verifier.c)2
-rw-r--r--drivers/net/ethernet/netronome/nfp/flower/action.c211
-rw-r--r--drivers/net/ethernet/netronome/nfp/flower/cmsg.c157
-rw-r--r--drivers/net/ethernet/netronome/nfp/flower/cmsg.h317
-rw-r--r--drivers/net/ethernet/netronome/nfp/flower/main.c390
-rw-r--r--drivers/net/ethernet/netronome/nfp/flower/main.h159
-rw-r--r--drivers/net/ethernet/netronome/nfp/flower/match.c292
-rw-r--r--drivers/net/ethernet/netronome/nfp/flower/metadata.c438
-rw-r--r--drivers/net/ethernet/netronome/nfp/flower/offload.c400
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_app.c126
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_app.h314
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_app_nic.c75
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_asm.h2
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_devlink.c199
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_hwmon.c192
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_main.c150
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_main.h76
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net.h148
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_common.c1245
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h50
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c15
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c79
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_main.c863
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_repr.c396
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_repr.h128
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c16
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_port.c233
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_port.h199
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h6
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c49
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h35
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c186
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpplib.c40
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_hwinfo.c70
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mip.c7
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c9
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nffw.h20
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c24
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h17
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_cmds.c47
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c16
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c10
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_rtsym.c154
-rw-r--r--drivers/net/ethernet/netronome/nfp/nic/main.c58
49 files changed, 6697 insertions, 1197 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/Makefile b/drivers/net/ethernet/netronome/nfp/Makefile
index 4b15f0f496aa..b8e1358868bd 100644
--- a/drivers/net/ethernet/netronome/nfp/Makefile
+++ b/drivers/net/ethernet/netronome/nfp/Makefile
@@ -14,17 +14,35 @@ nfp-objs := \
nfpcore/nfp_resource.o \
nfpcore/nfp_rtsym.o \
nfpcore/nfp_target.o \
+ nfp_app.o \
+ nfp_app_nic.o \
+ nfp_devlink.o \
+ nfp_hwmon.o \
nfp_main.o \
nfp_net_common.o \
nfp_net_ethtool.o \
- nfp_net_offload.o \
nfp_net_main.o \
- nfp_netvf_main.o
+ nfp_net_repr.o \
+ nfp_netvf_main.o \
+ nfp_port.o \
+ bpf/main.o \
+ bpf/offload.o \
+ nic/main.o
+
+ifeq ($(CONFIG_NFP_APP_FLOWER),y)
+nfp-objs += \
+ flower/action.o \
+ flower/cmsg.o \
+ flower/main.o \
+ flower/match.o \
+ flower/metadata.o \
+ flower/offload.o
+endif
ifeq ($(CONFIG_BPF_SYSCALL),y)
nfp-objs += \
- nfp_bpf_verifier.o \
- nfp_bpf_jit.o
+ bpf/verifier.o \
+ bpf/jit.o
endif
nfp-$(CONFIG_NFP_DEBUG) += nfp_net_debugfs.o
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c b/drivers/net/ethernet/netronome/nfp/bpf/jit.c
index 97a8f00674d0..8e57fda6b8b5 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/jit.c
@@ -39,8 +39,8 @@
#include <linux/pkt_cls.h>
#include <linux/unistd.h>
-#include "nfp_asm.h"
-#include "nfp_bpf.h"
+#include "main.h"
+#include "../nfp_asm.h"
/* --- NFP prog --- */
/* Foreach "multiple" entries macros provide pos and next<n> pointers.
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.c b/drivers/net/ethernet/netronome/nfp/bpf/main.c
new file mode 100644
index 000000000000..afbdf5fd4e4f
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/bpf/main.c
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <net/pkt_cls.h>
+
+#include "../nfpcore/nfp_cpp.h"
+#include "../nfp_app.h"
+#include "../nfp_main.h"
+#include "../nfp_net.h"
+#include "../nfp_port.h"
+#include "main.h"
+
+static bool nfp_net_ebpf_capable(struct nfp_net *nn)
+{
+ if (nn->cap & NFP_NET_CFG_CTRL_BPF &&
+ nn_readb(nn, NFP_NET_CFG_BPF_ABI) == NFP_NET_BPF_ABI)
+ return true;
+ return false;
+}
+
+static int
+nfp_bpf_xdp_offload(struct nfp_app *app, struct nfp_net *nn,
+ struct bpf_prog *prog)
+{
+ struct tc_cls_bpf_offload cmd = {
+ .prog = prog,
+ };
+ int ret;
+
+ if (!nfp_net_ebpf_capable(nn))
+ return -EINVAL;
+
+ if (nn->dp.ctrl & NFP_NET_CFG_CTRL_BPF) {
+ if (!nn->dp.bpf_offload_xdp)
+ return prog ? -EBUSY : 0;
+ cmd.command = prog ? TC_CLSBPF_REPLACE : TC_CLSBPF_DESTROY;
+ } else {
+ if (!prog)
+ return 0;
+ cmd.command = TC_CLSBPF_ADD;
+ }
+
+ ret = nfp_net_bpf_offload(nn, &cmd);
+ /* Stop offload if replace not possible */
+ if (ret && cmd.command == TC_CLSBPF_REPLACE)
+ nfp_bpf_xdp_offload(app, nn, NULL);
+ nn->dp.bpf_offload_xdp = prog && !ret;
+ return ret;
+}
+
+static const char *nfp_bpf_extra_cap(struct nfp_app *app, struct nfp_net *nn)
+{
+ return nfp_net_ebpf_capable(nn) ? "BPF" : "";
+}
+
+static int
+nfp_bpf_vnic_init(struct nfp_app *app, struct nfp_net *nn, unsigned int id)
+{
+ struct nfp_net_bpf_priv *priv;
+ int ret;
+
+ /* Limit to single port, otherwise it's just a NIC */
+ if (id > 0) {
+ nfp_warn(app->cpp,
+ "BPF NIC doesn't support more than one port right now\n");
+ nn->port = nfp_port_alloc(app, NFP_PORT_INVALID, nn->dp.netdev);
+ return PTR_ERR_OR_ZERO(nn->port);
+ }
+
+ priv = kmalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ nn->app_priv = priv;
+ spin_lock_init(&priv->rx_filter_lock);
+ setup_timer(&priv->rx_filter_stats_timer,
+ nfp_net_filter_stats_timer, (unsigned long)nn);
+
+ ret = nfp_app_nic_vnic_init(app, nn, id);
+ if (ret)
+ kfree(priv);
+
+ return ret;
+}
+
+static void nfp_bpf_vnic_clean(struct nfp_app *app, struct nfp_net *nn)
+{
+ if (nn->dp.bpf_offload_xdp)
+ nfp_bpf_xdp_offload(app, nn, NULL);
+ kfree(nn->app_priv);
+}
+
+static int nfp_bpf_setup_tc(struct nfp_app *app, struct net_device *netdev,
+ u32 handle, __be16 proto, struct tc_to_netdev *tc)
+{
+ struct nfp_net *nn = netdev_priv(netdev);
+
+ if (TC_H_MAJ(handle) != TC_H_MAJ(TC_H_INGRESS))
+ return -EOPNOTSUPP;
+ if (proto != htons(ETH_P_ALL))
+ return -EOPNOTSUPP;
+
+ if (tc->type == TC_SETUP_CLSBPF && nfp_net_ebpf_capable(nn)) {
+ if (!nn->dp.bpf_offload_xdp)
+ return nfp_net_bpf_offload(nn, tc->cls_bpf);
+ else
+ return -EBUSY;
+ }
+
+ return -EINVAL;
+}
+
+static bool nfp_bpf_tc_busy(struct nfp_app *app, struct nfp_net *nn)
+{
+ return nn->dp.ctrl & NFP_NET_CFG_CTRL_BPF;
+}
+
+const struct nfp_app_type app_bpf = {
+ .id = NFP_APP_BPF_NIC,
+ .name = "ebpf",
+
+ .extra_cap = nfp_bpf_extra_cap,
+
+ .vnic_init = nfp_bpf_vnic_init,
+ .vnic_clean = nfp_bpf_vnic_clean,
+
+ .setup_tc = nfp_bpf_setup_tc,
+ .tc_busy = nfp_bpf_tc_busy,
+ .xdp_offload = nfp_bpf_xdp_offload,
+};
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_bpf.h b/drivers/net/ethernet/netronome/nfp/bpf/main.h
index 9513c80f7be5..4051e943f363 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_bpf.h
+++ b/drivers/net/ethernet/netronome/nfp/bpf/main.h
@@ -39,6 +39,8 @@
#include <linux/list.h>
#include <linux/types.h>
+#include "../nfp_net.h"
+
/* For branch fixup logic use up-most byte of branch instruction as scratch
* area. Remember to clear this before sending instructions to HW!
*/
@@ -198,4 +200,25 @@ nfp_bpf_jit(struct bpf_prog *filter, void *prog, enum nfp_bpf_action_type act,
int nfp_prog_verify(struct nfp_prog *nfp_prog, struct bpf_prog *prog);
+struct nfp_net;
+struct tc_cls_bpf_offload;
+
+/**
+ * struct nfp_net_bpf_priv - per-vNIC BPF private data
+ * @rx_filter: Filter offload statistics - dropped packets/bytes
+ * @rx_filter_prev: Filter offload statistics - values from previous update
+ * @rx_filter_change: Jiffies when statistics last changed
+ * @rx_filter_stats_timer: Timer for polling filter offload statistics
+ * @rx_filter_lock: Lock protecting timer state changes (teardown)
+ */
+struct nfp_net_bpf_priv {
+ struct nfp_stat_pair rx_filter, rx_filter_prev;
+ unsigned long rx_filter_change;
+ struct timer_list rx_filter_stats_timer;
+ spinlock_t rx_filter_lock;
+};
+
+int nfp_net_bpf_offload(struct nfp_net *nn, struct tc_cls_bpf_offload *cls_bpf);
+void nfp_net_filter_stats_timer(unsigned long data);
+
#endif
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_offload.c b/drivers/net/ethernet/netronome/nfp/bpf/offload.c
index cc823df12c8a..78d80a364edb 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_offload.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/offload.c
@@ -47,60 +47,59 @@
#include <net/tc_act/tc_gact.h>
#include <net/tc_act/tc_mirred.h>
-#include "nfp_bpf.h"
-#include "nfp_net_ctrl.h"
-#include "nfp_net.h"
+#include "main.h"
+#include "../nfp_net_ctrl.h"
+#include "../nfp_net.h"
void nfp_net_filter_stats_timer(unsigned long data)
{
struct nfp_net *nn = (void *)data;
+ struct nfp_net_bpf_priv *priv;
struct nfp_stat_pair latest;
- spin_lock_bh(&nn->rx_filter_lock);
+ priv = nn->app_priv;
+
+ spin_lock_bh(&priv->rx_filter_lock);
if (nn->dp.ctrl & NFP_NET_CFG_CTRL_BPF)
- mod_timer(&nn->rx_filter_stats_timer,
+ mod_timer(&priv->rx_filter_stats_timer,
jiffies + NFP_NET_STAT_POLL_IVL);
- spin_unlock_bh(&nn->rx_filter_lock);
+ spin_unlock_bh(&priv->rx_filter_lock);
latest.pkts = nn_readq(nn, NFP_NET_CFG_STATS_APP1_FRAMES);
latest.bytes = nn_readq(nn, NFP_NET_CFG_STATS_APP1_BYTES);
- if (latest.pkts != nn->rx_filter.pkts)
- nn->rx_filter_change = jiffies;
+ if (latest.pkts != priv->rx_filter.pkts)
+ priv->rx_filter_change = jiffies;
- nn->rx_filter = latest;
+ priv->rx_filter = latest;
}
static void nfp_net_bpf_stats_reset(struct nfp_net *nn)
{
- nn->rx_filter.pkts = nn_readq(nn, NFP_NET_CFG_STATS_APP1_FRAMES);
- nn->rx_filter.bytes = nn_readq(nn, NFP_NET_CFG_STATS_APP1_BYTES);
- nn->rx_filter_prev = nn->rx_filter;
- nn->rx_filter_change = jiffies;
+ struct nfp_net_bpf_priv *priv = nn->app_priv;
+
+ priv->rx_filter.pkts = nn_readq(nn, NFP_NET_CFG_STATS_APP1_FRAMES);
+ priv->rx_filter.bytes = nn_readq(nn, NFP_NET_CFG_STATS_APP1_BYTES);
+ priv->rx_filter_prev = priv->rx_filter;
+ priv->rx_filter_change = jiffies;
}
static int
nfp_net_bpf_stats_update(struct nfp_net *nn, struct tc_cls_bpf_offload *cls_bpf)
{
- struct tc_action *a;
- LIST_HEAD(actions);
+ struct nfp_net_bpf_priv *priv = nn->app_priv;
u64 bytes, pkts;
- pkts = nn->rx_filter.pkts - nn->rx_filter_prev.pkts;
- bytes = nn->rx_filter.bytes - nn->rx_filter_prev.bytes;
+ pkts = priv->rx_filter.pkts - priv->rx_filter_prev.pkts;
+ bytes = priv->rx_filter.bytes - priv->rx_filter_prev.bytes;
bytes -= pkts * ETH_HLEN;
- nn->rx_filter_prev = nn->rx_filter;
+ priv->rx_filter_prev = priv->rx_filter;
- preempt_disable();
-
- tcf_exts_to_list(cls_bpf->exts, &actions);
- list_for_each_entry(a, &actions, list)
- tcf_action_stats_update(a, bytes, pkts, nn->rx_filter_change);
-
- preempt_enable();
+ tcf_exts_stats_update(cls_bpf->exts,
+ bytes, pkts, priv->rx_filter_change);
return 0;
}
@@ -190,6 +189,7 @@ nfp_net_bpf_load_and_start(struct nfp_net *nn, u32 tc_flags,
unsigned int code_sz, unsigned int n_instr,
bool dense_mode)
{
+ struct nfp_net_bpf_priv *priv = nn->app_priv;
u64 bpf_addr = dma_addr;
int err;
@@ -216,20 +216,23 @@ nfp_net_bpf_load_and_start(struct nfp_net *nn, u32 tc_flags,
dma_free_coherent(nn->dp.dev, code_sz, code, dma_addr);
nfp_net_bpf_stats_reset(nn);
- mod_timer(&nn->rx_filter_stats_timer, jiffies + NFP_NET_STAT_POLL_IVL);
+ mod_timer(&priv->rx_filter_stats_timer,
+ jiffies + NFP_NET_STAT_POLL_IVL);
}
static int nfp_net_bpf_stop(struct nfp_net *nn)
{
+ struct nfp_net_bpf_priv *priv = nn->app_priv;
+
if (!(nn->dp.ctrl & NFP_NET_CFG_CTRL_BPF))
return 0;
- spin_lock_bh(&nn->rx_filter_lock);
+ spin_lock_bh(&priv->rx_filter_lock);
nn->dp.ctrl &= ~NFP_NET_CFG_CTRL_BPF;
- spin_unlock_bh(&nn->rx_filter_lock);
+ spin_unlock_bh(&priv->rx_filter_lock);
nn_writel(nn, NFP_NET_CFG_CTRL, nn->dp.ctrl);
- del_timer_sync(&nn->rx_filter_stats_timer);
+ del_timer_sync(&priv->rx_filter_stats_timer);
nn->dp.bpf_offload_skip_sw = 0;
return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_GEN);
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_bpf_verifier.c b/drivers/net/ethernet/netronome/nfp/bpf/verifier.c
index b3361f9b8e5c..d696ba46f70a 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_bpf_verifier.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/verifier.c
@@ -38,7 +38,7 @@
#include <linux/kernel.h>
#include <linux/pkt_cls.h>
-#include "nfp_bpf.h"
+#include "main.h"
/* Analyzer/verifier definitions */
struct nfp_bpf_analyzer_priv {
diff --git a/drivers/net/ethernet/netronome/nfp/flower/action.c b/drivers/net/ethernet/netronome/nfp/flower/action.c
new file mode 100644
index 000000000000..db9750695dc7
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/flower/action.c
@@ -0,0 +1,211 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/bitfield.h>
+#include <net/pkt_cls.h>
+#include <net/switchdev.h>
+#include <net/tc_act/tc_gact.h>
+#include <net/tc_act/tc_mirred.h>
+#include <net/tc_act/tc_vlan.h>
+
+#include "cmsg.h"
+#include "main.h"
+#include "../nfp_net_repr.h"
+
+static void nfp_fl_pop_vlan(struct nfp_fl_pop_vlan *pop_vlan)
+{
+ size_t act_size = sizeof(struct nfp_fl_pop_vlan);
+ u16 tmp_pop_vlan_op;
+
+ tmp_pop_vlan_op =
+ FIELD_PREP(NFP_FL_ACT_LEN_LW, act_size >> NFP_FL_LW_SIZ) |
+ FIELD_PREP(NFP_FL_ACT_JMP_ID, NFP_FL_ACTION_OPCODE_POP_VLAN);
+
+ pop_vlan->a_op = cpu_to_be16(tmp_pop_vlan_op);
+ pop_vlan->reserved = 0;
+}
+
+static void
+nfp_fl_push_vlan(struct nfp_fl_push_vlan *push_vlan,
+ const struct tc_action *action)
+{
+ size_t act_size = sizeof(struct nfp_fl_push_vlan);
+ struct tcf_vlan *vlan = to_vlan(action);
+ u16 tmp_push_vlan_tci;
+ u16 tmp_push_vlan_op;
+
+ tmp_push_vlan_op =
+ FIELD_PREP(NFP_FL_ACT_LEN_LW, act_size >> NFP_FL_LW_SIZ) |
+ FIELD_PREP(NFP_FL_ACT_JMP_ID, NFP_FL_ACTION_OPCODE_PUSH_VLAN);
+
+ push_vlan->a_op = cpu_to_be16(tmp_push_vlan_op);
+ /* Set action push vlan parameters. */
+ push_vlan->reserved = 0;
+ push_vlan->vlan_tpid = tcf_vlan_push_proto(action);
+
+ tmp_push_vlan_tci =
+ FIELD_PREP(NFP_FL_PUSH_VLAN_PRIO, vlan->tcfv_push_prio) |
+ FIELD_PREP(NFP_FL_PUSH_VLAN_VID, vlan->tcfv_push_vid) |
+ NFP_FL_PUSH_VLAN_CFI;
+ push_vlan->vlan_tci = cpu_to_be16(tmp_push_vlan_tci);
+}
+
+static int
+nfp_fl_output(struct nfp_fl_output *output, const struct tc_action *action,
+ struct nfp_fl_payload *nfp_flow, bool last,
+ struct net_device *in_dev)
+{
+ size_t act_size = sizeof(struct nfp_fl_output);
+ struct net_device *out_dev;
+ u16 tmp_output_op;
+ int ifindex;
+
+ /* Set action opcode to output action. */
+ tmp_output_op =
+ FIELD_PREP(NFP_FL_ACT_LEN_LW, act_size >> NFP_FL_LW_SIZ) |
+ FIELD_PREP(NFP_FL_ACT_JMP_ID, NFP_FL_ACTION_OPCODE_OUTPUT);
+
+ output->a_op = cpu_to_be16(tmp_output_op);
+
+ /* Set action output parameters. */
+ output->flags = cpu_to_be16(last ? NFP_FL_OUT_FLAGS_LAST : 0);
+
+ ifindex = tcf_mirred_ifindex(action);
+ out_dev = __dev_get_by_index(dev_net(in_dev), ifindex);
+ if (!out_dev)
+ return -EOPNOTSUPP;
+
+ /* Only offload egress ports are on the same device as the ingress
+ * port.
+ */
+ if (!switchdev_port_same_parent_id(in_dev, out_dev))
+ return -EOPNOTSUPP;
+
+ output->port = cpu_to_be32(nfp_repr_get_port_id(out_dev));
+ if (!output->port)
+ return -EOPNOTSUPP;
+
+ nfp_flow->meta.shortcut = output->port;
+
+ return 0;
+}
+
+static int
+nfp_flower_loop_action(const struct tc_action *a,
+ struct nfp_fl_payload *nfp_fl, int *a_len,
+ struct net_device *netdev)
+{
+ struct nfp_fl_push_vlan *psh_v;
+ struct nfp_fl_pop_vlan *pop_v;
+ struct nfp_fl_output *output;
+ int err;
+
+ if (is_tcf_gact_shot(a)) {
+ nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_DROP);
+ } else if (is_tcf_mirred_egress_redirect(a)) {
+ if (*a_len + sizeof(struct nfp_fl_output) > NFP_FL_MAX_A_SIZ)
+ return -EOPNOTSUPP;
+
+ output = (struct nfp_fl_output *)&nfp_fl->action_data[*a_len];
+ err = nfp_fl_output(output, a, nfp_fl, true, netdev);
+ if (err)
+ return err;
+
+ *a_len += sizeof(struct nfp_fl_output);
+ } else if (is_tcf_mirred_egress_mirror(a)) {
+ if (*a_len + sizeof(struct nfp_fl_output) > NFP_FL_MAX_A_SIZ)
+ return -EOPNOTSUPP;
+
+ output = (struct nfp_fl_output *)&nfp_fl->action_data[*a_len];
+ err = nfp_fl_output(output, a, nfp_fl, false, netdev);
+ if (err)
+ return err;
+
+ *a_len += sizeof(struct nfp_fl_output);
+ } else if (is_tcf_vlan(a) && tcf_vlan_action(a) == TCA_VLAN_ACT_POP) {
+ if (*a_len + sizeof(struct nfp_fl_pop_vlan) > NFP_FL_MAX_A_SIZ)
+ return -EOPNOTSUPP;
+
+ pop_v = (struct nfp_fl_pop_vlan *)&nfp_fl->action_data[*a_len];
+ nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_POPV);
+
+ nfp_fl_pop_vlan(pop_v);
+ *a_len += sizeof(struct nfp_fl_pop_vlan);
+ } else if (is_tcf_vlan(a) && tcf_vlan_action(a) == TCA_VLAN_ACT_PUSH) {
+ if (*a_len + sizeof(struct nfp_fl_push_vlan) > NFP_FL_MAX_A_SIZ)
+ return -EOPNOTSUPP;
+
+ psh_v = (struct nfp_fl_push_vlan *)&nfp_fl->action_data[*a_len];
+ nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL);
+
+ nfp_fl_push_vlan(psh_v, a);
+ *a_len += sizeof(struct nfp_fl_push_vlan);
+ } else {
+ /* Currently we do not handle any other actions. */
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+int nfp_flower_compile_action(struct tc_cls_flower_offload *flow,
+ struct net_device *netdev,
+ struct nfp_fl_payload *nfp_flow)
+{
+ int act_len, act_cnt, err;
+ const struct tc_action *a;
+ LIST_HEAD(actions);
+
+ memset(nfp_flow->action_data, 0, NFP_FL_MAX_A_SIZ);
+ nfp_flow->meta.act_len = 0;
+ act_len = 0;
+ act_cnt = 0;
+
+ tcf_exts_to_list(flow->exts, &actions);
+ list_for_each_entry(a, &actions, list) {
+ err = nfp_flower_loop_action(a, nfp_flow, &act_len, netdev);
+ if (err)
+ return err;
+ act_cnt++;
+ }
+
+ /* We optimise when the action list is small, this can unfortunately
+ * not happen once we have more than one action in the action list.
+ */
+ if (act_cnt > 1)
+ nfp_flow->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL);
+
+ nfp_flow->meta.act_len = act_len;
+
+ return 0;
+}
diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.c b/drivers/net/ethernet/netronome/nfp/flower/cmsg.c
new file mode 100644
index 000000000000..dd7fa9cf225f
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2015-2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/bitfield.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <net/dst_metadata.h>
+
+#include "main.h"
+#include "../nfpcore/nfp_cpp.h"
+#include "../nfp_net_repr.h"
+#include "./cmsg.h"
+
+#define nfp_flower_cmsg_warn(app, fmt, args...) \
+ do { \
+ if (net_ratelimit()) \
+ nfp_warn((app)->cpp, fmt, ## args); \
+ } while (0)
+
+static struct nfp_flower_cmsg_hdr *
+nfp_flower_cmsg_get_hdr(struct sk_buff *skb)
+{
+ return (struct nfp_flower_cmsg_hdr *)skb->data;
+}
+
+struct sk_buff *
+nfp_flower_cmsg_alloc(struct nfp_app *app, unsigned int size,
+ enum nfp_flower_cmsg_type_port type)
+{
+ struct nfp_flower_cmsg_hdr *ch;
+ struct sk_buff *skb;
+
+ size += NFP_FLOWER_CMSG_HLEN;
+
+ skb = nfp_app_ctrl_msg_alloc(app, size, GFP_KERNEL);
+ if (!skb)
+ return NULL;
+
+ ch = nfp_flower_cmsg_get_hdr(skb);
+ ch->pad = 0;
+ ch->version = NFP_FLOWER_CMSG_VER1;
+ ch->type = type;
+ skb_put(skb, size);
+
+ return skb;
+}
+
+int nfp_flower_cmsg_portmod(struct nfp_repr *repr, bool carrier_ok)
+{
+ struct nfp_flower_cmsg_portmod *msg;
+ struct sk_buff *skb;
+
+ skb = nfp_flower_cmsg_alloc(repr->app, sizeof(*msg),
+ NFP_FLOWER_CMSG_TYPE_PORT_MOD);
+ if (!skb)
+ return -ENOMEM;
+
+ msg = nfp_flower_cmsg_get_data(skb);
+ msg->portnum = cpu_to_be32(repr->dst->u.port_info.port_id);
+ msg->reserved = 0;
+ msg->info = carrier_ok;
+ msg->mtu = cpu_to_be16(repr->netdev->mtu);
+
+ nfp_ctrl_tx(repr->app->ctrl, skb);
+
+ return 0;
+}
+
+static void
+nfp_flower_cmsg_portmod_rx(struct nfp_app *app, struct sk_buff *skb)
+{
+ struct nfp_flower_cmsg_portmod *msg;
+ struct net_device *netdev;
+ bool link;
+
+ msg = nfp_flower_cmsg_get_data(skb);
+ link = msg->info & NFP_FLOWER_CMSG_PORTMOD_INFO_LINK;
+
+ rcu_read_lock();
+ netdev = nfp_app_repr_get(app, be32_to_cpu(msg->portnum));
+ if (!netdev) {
+ nfp_flower_cmsg_warn(app, "ctrl msg for unknown port 0x%08x\n",
+ be32_to_cpu(msg->portnum));
+ rcu_read_unlock();
+ return;
+ }
+
+ if (link) {
+ netif_carrier_on(netdev);
+ rtnl_lock();
+ dev_set_mtu(netdev, be16_to_cpu(msg->mtu));
+ rtnl_unlock();
+ } else {
+ netif_carrier_off(netdev);
+ }
+ rcu_read_unlock();
+}
+
+void nfp_flower_cmsg_rx(struct nfp_app *app, struct sk_buff *skb)
+{
+ struct nfp_flower_cmsg_hdr *cmsg_hdr;
+ enum nfp_flower_cmsg_type_port type;
+
+ cmsg_hdr = nfp_flower_cmsg_get_hdr(skb);
+
+ if (unlikely(cmsg_hdr->version != NFP_FLOWER_CMSG_VER1)) {
+ nfp_flower_cmsg_warn(app, "Cannot handle repr control version %u\n",
+ cmsg_hdr->version);
+ goto out;
+ }
+
+ type = cmsg_hdr->type;
+ switch (type) {
+ case NFP_FLOWER_CMSG_TYPE_PORT_MOD:
+ nfp_flower_cmsg_portmod_rx(app, skb);
+ break;
+ case NFP_FLOWER_CMSG_TYPE_FLOW_STATS:
+ nfp_flower_rx_flow_stats(app, skb);
+ break;
+ default:
+ nfp_flower_cmsg_warn(app, "Cannot handle invalid repr control type %u\n",
+ type);
+ }
+
+out:
+ dev_kfree_skb_any(skb);
+}
diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
new file mode 100644
index 000000000000..cf738de170ab
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
@@ -0,0 +1,317 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef NFP_FLOWER_CMSG_H
+#define NFP_FLOWER_CMSG_H
+
+#include <linux/bitfield.h>
+#include <linux/skbuff.h>
+#include <linux/types.h>
+
+#include "../nfp_app.h"
+
+#define NFP_FLOWER_LAYER_META BIT(0)
+#define NFP_FLOWER_LAYER_PORT BIT(1)
+#define NFP_FLOWER_LAYER_MAC BIT(2)
+#define NFP_FLOWER_LAYER_TP BIT(3)
+#define NFP_FLOWER_LAYER_IPV4 BIT(4)
+#define NFP_FLOWER_LAYER_IPV6 BIT(5)
+#define NFP_FLOWER_LAYER_CT BIT(6)
+#define NFP_FLOWER_LAYER_VXLAN BIT(7)
+
+#define NFP_FLOWER_LAYER_ETHER BIT(3)
+#define NFP_FLOWER_LAYER_ARP BIT(4)
+
+#define NFP_FLOWER_MASK_VLAN_PRIO GENMASK(15, 13)
+#define NFP_FLOWER_MASK_VLAN_CFI BIT(12)
+#define NFP_FLOWER_MASK_VLAN_VID GENMASK(11, 0)
+
+#define NFP_FL_SC_ACT_DROP 0x80000000
+#define NFP_FL_SC_ACT_USER 0x7D000000
+#define NFP_FL_SC_ACT_POPV 0x6A000000
+#define NFP_FL_SC_ACT_NULL 0x00000000
+
+/* The maximum action list size (in bytes) supported by the NFP.
+ */
+#define NFP_FL_MAX_A_SIZ 1216
+#define NFP_FL_LW_SIZ 2
+
+/* Action opcodes */
+#define NFP_FL_ACTION_OPCODE_OUTPUT 0
+#define NFP_FL_ACTION_OPCODE_PUSH_VLAN 1
+#define NFP_FL_ACTION_OPCODE_POP_VLAN 2
+#define NFP_FL_ACTION_OPCODE_NUM 32
+
+#define NFP_FL_ACT_JMP_ID GENMASK(15, 8)
+#define NFP_FL_ACT_LEN_LW GENMASK(7, 0)
+
+#define NFP_FL_OUT_FLAGS_LAST BIT(15)
+#define NFP_FL_OUT_FLAGS_USE_TUN BIT(4)
+#define NFP_FL_OUT_FLAGS_TYPE_IDX GENMASK(2, 0)
+
+#define NFP_FL_PUSH_VLAN_PRIO GENMASK(15, 13)
+#define NFP_FL_PUSH_VLAN_CFI BIT(12)
+#define NFP_FL_PUSH_VLAN_VID GENMASK(11, 0)
+
+struct nfp_fl_output {
+ __be16 a_op;
+ __be16 flags;
+ __be32 port;
+};
+
+struct nfp_fl_push_vlan {
+ __be16 a_op;
+ __be16 reserved;
+ __be16 vlan_tpid;
+ __be16 vlan_tci;
+};
+
+struct nfp_fl_pop_vlan {
+ __be16 a_op;
+ __be16 reserved;
+};
+
+/* Metadata without L2 (1W/4B)
+ * ----------------------------------------------------------------
+ * 3 2 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | key_layers | mask_id | reserved |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct nfp_flower_meta_one {
+ u8 nfp_flow_key_layer;
+ u8 mask_id;
+ u16 reserved;
+};
+
+/* Metadata with L2 (1W/4B)
+ * ----------------------------------------------------------------
+ * 3 2 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | key_type | mask_id | PCP |p| vlan outermost VID |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * ^ ^
+ * NOTE: | TCI |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct nfp_flower_meta_two {
+ u8 nfp_flow_key_layer;
+ u8 mask_id;
+ __be16 tci;
+};
+
+/* Port details (1W/4B)
+ * ----------------------------------------------------------------
+ * 3 2 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | port_ingress |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct nfp_flower_in_port {
+ __be32 in_port;
+};
+
+/* L2 details (4W/16B)
+ * 3 2 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | mac_addr_dst, 31 - 0 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | mac_addr_dst, 47 - 32 | mac_addr_src, 15 - 0 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | mac_addr_src, 47 - 16 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | mpls outermost label | TC |B| reserved |q|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct nfp_flower_mac_mpls {
+ u8 mac_dst[6];
+ u8 mac_src[6];
+ __be32 mpls_lse;
+};
+
+/* L4 ports (for UDP, TCP, SCTP) (1W/4B)
+ * 3 2 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | port_src | port_dst |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct nfp_flower_tp_ports {
+ __be16 port_src;
+ __be16 port_dst;
+};
+
+/* L3 IPv4 details (3W/12B)
+ * 3 2 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | DSCP |ECN| protocol | reserved |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv4_addr_src |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv4_addr_dst |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct nfp_flower_ipv4 {
+ u8 tos;
+ u8 proto;
+ u8 ttl;
+ u8 reserved;
+ __be32 ipv4_src;
+ __be32 ipv4_dst;
+};
+
+/* L3 IPv6 details (10W/40B)
+ * 3 2 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | DSCP |ECN| protocol | reserved |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_exthdr | res | ipv6_flow_label |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_src, 31 - 0 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_src, 63 - 32 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_src, 95 - 64 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_src, 127 - 96 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_dst, 31 - 0 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_dst, 63 - 32 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_dst, 95 - 64 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_dst, 127 - 96 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct nfp_flower_ipv6 {
+ u8 tos;
+ u8 proto;
+ u8 ttl;
+ u8 reserved;
+ __be32 ipv6_flow_label_exthdr;
+ struct in6_addr ipv6_src;
+ struct in6_addr ipv6_dst;
+};
+
+/* The base header for a control message packet.
+ * Defines an 8-bit version, and an 8-bit type, padded
+ * to a 32-bit word. Rest of the packet is type-specific.
+ */
+struct nfp_flower_cmsg_hdr {
+ __be16 pad;
+ u8 type;
+ u8 version;
+};
+
+#define NFP_FLOWER_CMSG_HLEN sizeof(struct nfp_flower_cmsg_hdr)
+#define NFP_FLOWER_CMSG_VER1 1
+
+/* Types defined for port related control messages */
+enum nfp_flower_cmsg_type_port {
+ NFP_FLOWER_CMSG_TYPE_FLOW_ADD = 0,
+ NFP_FLOWER_CMSG_TYPE_FLOW_DEL = 2,
+ NFP_FLOWER_CMSG_TYPE_PORT_MOD = 8,
+ NFP_FLOWER_CMSG_TYPE_FLOW_STATS = 15,
+ NFP_FLOWER_CMSG_TYPE_PORT_ECHO = 16,
+ NFP_FLOWER_CMSG_TYPE_MAX = 32,
+};
+
+/* NFP_FLOWER_CMSG_TYPE_PORT_MOD */
+struct nfp_flower_cmsg_portmod {
+ __be32 portnum;
+ u8 reserved;
+ u8 info;
+ __be16 mtu;
+};
+
+#define NFP_FLOWER_CMSG_PORTMOD_INFO_LINK BIT(0)
+
+enum nfp_flower_cmsg_port_type {
+ NFP_FLOWER_CMSG_PORT_TYPE_UNSPEC = 0x0,
+ NFP_FLOWER_CMSG_PORT_TYPE_PHYS_PORT = 0x1,
+ NFP_FLOWER_CMSG_PORT_TYPE_PCIE_PORT = 0x2,
+};
+
+enum nfp_flower_cmsg_port_vnic_type {
+ NFP_FLOWER_CMSG_PORT_VNIC_TYPE_VF = 0x0,
+ NFP_FLOWER_CMSG_PORT_VNIC_TYPE_PF = 0x1,
+ NFP_FLOWER_CMSG_PORT_VNIC_TYPE_CTRL = 0x2,
+};
+
+#define NFP_FLOWER_CMSG_PORT_TYPE GENMASK(31, 28)
+#define NFP_FLOWER_CMSG_PORT_SYS_ID GENMASK(27, 24)
+#define NFP_FLOWER_CMSG_PORT_NFP_ID GENMASK(23, 22)
+#define NFP_FLOWER_CMSG_PORT_PCI GENMASK(15, 14)
+#define NFP_FLOWER_CMSG_PORT_VNIC_TYPE GENMASK(13, 12)
+#define NFP_FLOWER_CMSG_PORT_VNIC GENMASK(11, 6)
+#define NFP_FLOWER_CMSG_PORT_PCIE_Q GENMASK(5, 0)
+#define NFP_FLOWER_CMSG_PORT_PHYS_PORT_NUM GENMASK(7, 0)
+
+static inline u32 nfp_flower_cmsg_phys_port(u8 phys_port)
+{
+ return FIELD_PREP(NFP_FLOWER_CMSG_PORT_PHYS_PORT_NUM, phys_port) |
+ FIELD_PREP(NFP_FLOWER_CMSG_PORT_TYPE,
+ NFP_FLOWER_CMSG_PORT_TYPE_PHYS_PORT);
+}
+
+static inline u32
+nfp_flower_cmsg_pcie_port(u8 nfp_pcie, enum nfp_flower_cmsg_port_vnic_type type,
+ u8 vnic, u8 q)
+{
+ return FIELD_PREP(NFP_FLOWER_CMSG_PORT_PCI, nfp_pcie) |
+ FIELD_PREP(NFP_FLOWER_CMSG_PORT_VNIC_TYPE, type) |
+ FIELD_PREP(NFP_FLOWER_CMSG_PORT_VNIC, vnic) |
+ FIELD_PREP(NFP_FLOWER_CMSG_PORT_PCIE_Q, q) |
+ FIELD_PREP(NFP_FLOWER_CMSG_PORT_TYPE,
+ NFP_FLOWER_CMSG_PORT_TYPE_PCIE_PORT);
+}
+
+static inline void *nfp_flower_cmsg_get_data(struct sk_buff *skb)
+{
+ return (unsigned char *)skb->data + NFP_FLOWER_CMSG_HLEN;
+}
+
+int nfp_flower_cmsg_portmod(struct nfp_repr *repr, bool carrier_ok);
+void nfp_flower_cmsg_rx(struct nfp_app *app, struct sk_buff *skb);
+struct sk_buff *
+nfp_flower_cmsg_alloc(struct nfp_app *app, unsigned int size,
+ enum nfp_flower_cmsg_type_port type);
+
+#endif
diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.c b/drivers/net/ethernet/netronome/nfp/flower/main.c
new file mode 100644
index 000000000000..fc10f27e0a0c
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/flower/main.c
@@ -0,0 +1,390 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/pci.h>
+#include <linux/skbuff.h>
+#include <linux/vmalloc.h>
+#include <net/devlink.h>
+#include <net/dst_metadata.h>
+
+#include "main.h"
+#include "../nfpcore/nfp_cpp.h"
+#include "../nfpcore/nfp_nffw.h"
+#include "../nfpcore/nfp_nsp.h"
+#include "../nfp_app.h"
+#include "../nfp_main.h"
+#include "../nfp_net.h"
+#include "../nfp_net_repr.h"
+#include "../nfp_port.h"
+#include "./cmsg.h"
+
+#define NFP_FLOWER_ALLOWED_VER 0x0001000000010000UL
+
+static const char *nfp_flower_extra_cap(struct nfp_app *app, struct nfp_net *nn)
+{
+ return "FLOWER";
+}
+
+static enum devlink_eswitch_mode eswitch_mode_get(struct nfp_app *app)
+{
+ return DEVLINK_ESWITCH_MODE_SWITCHDEV;
+}
+
+static enum nfp_repr_type
+nfp_flower_repr_get_type_and_port(struct nfp_app *app, u32 port_id, u8 *port)
+{
+ switch (FIELD_GET(NFP_FLOWER_CMSG_PORT_TYPE, port_id)) {
+ case NFP_FLOWER_CMSG_PORT_TYPE_PHYS_PORT:
+ *port = FIELD_GET(NFP_FLOWER_CMSG_PORT_PHYS_PORT_NUM,
+ port_id);
+ return NFP_REPR_TYPE_PHYS_PORT;
+
+ case NFP_FLOWER_CMSG_PORT_TYPE_PCIE_PORT:
+ *port = FIELD_GET(NFP_FLOWER_CMSG_PORT_VNIC, port_id);
+ if (FIELD_GET(NFP_FLOWER_CMSG_PORT_VNIC_TYPE, port_id) ==
+ NFP_FLOWER_CMSG_PORT_VNIC_TYPE_PF)
+ return NFP_REPR_TYPE_PF;
+ else
+ return NFP_REPR_TYPE_VF;
+ }
+
+ return NFP_FLOWER_CMSG_PORT_TYPE_UNSPEC;
+}
+
+static struct net_device *
+nfp_flower_repr_get(struct nfp_app *app, u32 port_id)
+{
+ enum nfp_repr_type repr_type;
+ struct nfp_reprs *reprs;
+ u8 port = 0;
+
+ repr_type = nfp_flower_repr_get_type_and_port(app, port_id, &port);
+
+ reprs = rcu_dereference(app->reprs[repr_type]);
+ if (!reprs)
+ return NULL;
+
+ if (port >= reprs->num_reprs)
+ return NULL;
+
+ return reprs->reprs[port];
+}
+
+static int
+nfp_flower_repr_netdev_open(struct nfp_app *app, struct nfp_repr *repr)
+{
+ int err;
+
+ err = nfp_flower_cmsg_portmod(repr, true);
+ if (err)
+ return err;
+
+ netif_carrier_on(repr->netdev);
+ netif_tx_wake_all_queues(repr->netdev);
+
+ return 0;
+}
+
+static int
+nfp_flower_repr_netdev_stop(struct nfp_app *app, struct nfp_repr *repr)
+{
+ netif_carrier_off(repr->netdev);
+ netif_tx_disable(repr->netdev);
+
+ return nfp_flower_cmsg_portmod(repr, false);
+}
+
+static void nfp_flower_sriov_disable(struct nfp_app *app)
+{
+ nfp_reprs_clean_and_free_by_type(app, NFP_REPR_TYPE_VF);
+}
+
+static int
+nfp_flower_spawn_vnic_reprs(struct nfp_app *app,
+ enum nfp_flower_cmsg_port_vnic_type vnic_type,
+ enum nfp_repr_type repr_type, unsigned int cnt)
+{
+ u8 nfp_pcie = nfp_cppcore_pcie_unit(app->pf->cpp);
+ struct nfp_flower_priv *priv = app->priv;
+ struct nfp_reprs *reprs, *old_reprs;
+ enum nfp_port_type port_type;
+ const u8 queue = 0;
+ int i, err;
+
+ port_type = repr_type == NFP_REPR_TYPE_PF ? NFP_PORT_PF_PORT :
+ NFP_PORT_VF_PORT;
+
+ reprs = nfp_reprs_alloc(cnt);
+ if (!reprs)
+ return -ENOMEM;
+
+ for (i = 0; i < cnt; i++) {
+ struct nfp_port *port;
+ u32 port_id;
+
+ reprs->reprs[i] = nfp_repr_alloc(app);
+ if (!reprs->reprs[i]) {
+ err = -ENOMEM;
+ goto err_reprs_clean;
+ }
+
+ port = nfp_port_alloc(app, port_type, reprs->reprs[i]);
+ if (repr_type == NFP_REPR_TYPE_PF) {
+ port->pf_id = i;
+ } else {
+ port->pf_id = 0; /* For now we only support 1 PF */
+ port->vf_id = i;
+ }
+
+ eth_hw_addr_random(reprs->reprs[i]);
+
+ port_id = nfp_flower_cmsg_pcie_port(nfp_pcie, vnic_type,
+ i, queue);
+ err = nfp_repr_init(app, reprs->reprs[i],
+ port_id, port, priv->nn->dp.netdev);
+ if (err) {
+ nfp_port_free(port);
+ goto err_reprs_clean;
+ }
+
+ nfp_info(app->cpp, "%s%d Representor(%s) created\n",
+ repr_type == NFP_REPR_TYPE_PF ? "PF" : "VF", i,
+ reprs->reprs[i]->name);
+ }
+
+ old_reprs = nfp_app_reprs_set(app, repr_type, reprs);
+ if (IS_ERR(old_reprs)) {
+ err = PTR_ERR(old_reprs);
+ goto err_reprs_clean;
+ }
+
+ return 0;
+err_reprs_clean:
+ nfp_reprs_clean_and_free(reprs);
+ return err;
+}
+
+static int nfp_flower_sriov_enable(struct nfp_app *app, int num_vfs)
+{
+ return nfp_flower_spawn_vnic_reprs(app,
+ NFP_FLOWER_CMSG_PORT_VNIC_TYPE_VF,
+ NFP_REPR_TYPE_VF, num_vfs);
+}
+
+static void nfp_flower_stop(struct nfp_app *app)
+{
+ nfp_reprs_clean_and_free_by_type(app, NFP_REPR_TYPE_PF);
+ nfp_reprs_clean_and_free_by_type(app, NFP_REPR_TYPE_PHYS_PORT);
+
+}
+
+static int
+nfp_flower_spawn_phy_reprs(struct nfp_app *app, struct nfp_flower_priv *priv)
+{
+ struct nfp_eth_table *eth_tbl = app->pf->eth_tbl;
+ struct nfp_reprs *reprs, *old_reprs;
+ unsigned int i;
+ int err;
+
+ reprs = nfp_reprs_alloc(eth_tbl->max_index + 1);
+ if (!reprs)
+ return -ENOMEM;
+
+ for (i = 0; i < eth_tbl->count; i++) {
+ int phys_port = eth_tbl->ports[i].index;
+ struct nfp_port *port;
+ u32 cmsg_port_id;
+
+ reprs->reprs[phys_port] = nfp_repr_alloc(app);
+ if (!reprs->reprs[phys_port]) {
+ err = -ENOMEM;
+ goto err_reprs_clean;
+ }
+
+ port = nfp_port_alloc(app, NFP_PORT_PHYS_PORT,
+ reprs->reprs[phys_port]);
+ if (IS_ERR(port)) {
+ err = PTR_ERR(port);
+ goto err_reprs_clean;
+ }
+ err = nfp_port_init_phy_port(app->pf, app, port, i);
+ if (err) {
+ nfp_port_free(port);
+ goto err_reprs_clean;
+ }
+
+ SET_NETDEV_DEV(reprs->reprs[phys_port], &priv->nn->pdev->dev);
+ nfp_net_get_mac_addr(app->pf, port);
+
+ cmsg_port_id = nfp_flower_cmsg_phys_port(phys_port);
+ err = nfp_repr_init(app, reprs->reprs[phys_port],
+ cmsg_port_id, port, priv->nn->dp.netdev);
+ if (err) {
+ nfp_port_free(port);
+ goto err_reprs_clean;
+ }
+
+ nfp_info(app->cpp, "Phys Port %d Representor(%s) created\n",
+ phys_port, reprs->reprs[phys_port]->name);
+ }
+
+ old_reprs = nfp_app_reprs_set(app, NFP_REPR_TYPE_PHYS_PORT, reprs);
+ if (IS_ERR(old_reprs)) {
+ err = PTR_ERR(old_reprs);
+ goto err_reprs_clean;
+ }
+
+ return 0;
+err_reprs_clean:
+ nfp_reprs_clean_and_free(reprs);
+ return err;
+}
+
+static int nfp_flower_start(struct nfp_app *app)
+{
+ int err;
+
+ err = nfp_flower_spawn_phy_reprs(app, app->priv);
+ if (err)
+ return err;
+
+ return nfp_flower_spawn_vnic_reprs(app,
+ NFP_FLOWER_CMSG_PORT_VNIC_TYPE_PF,
+ NFP_REPR_TYPE_PF, 1);
+}
+
+static int nfp_flower_vnic_init(struct nfp_app *app, struct nfp_net *nn,
+ unsigned int id)
+{
+ struct nfp_flower_priv *priv = app->priv;
+
+ if (id > 0) {
+ nfp_warn(app->cpp, "FlowerNIC doesn't support more than one data vNIC\n");
+ goto err_invalid_port;
+ }
+
+ priv->nn = nn;
+
+ eth_hw_addr_random(nn->dp.netdev);
+ netif_keep_dst(nn->dp.netdev);
+
+ return 0;
+
+err_invalid_port:
+ nn->port = nfp_port_alloc(app, NFP_PORT_INVALID, nn->dp.netdev);
+ return PTR_ERR_OR_ZERO(nn->port);
+}
+
+static int nfp_flower_init(struct nfp_app *app)
+{
+ const struct nfp_pf *pf = app->pf;
+ u64 version;
+ int err;
+
+ if (!pf->eth_tbl) {
+ nfp_warn(app->cpp, "FlowerNIC requires eth table\n");
+ return -EINVAL;
+ }
+
+ if (!pf->mac_stats_bar) {
+ nfp_warn(app->cpp, "FlowerNIC requires mac_stats BAR\n");
+ return -EINVAL;
+ }
+
+ if (!pf->vf_cfg_bar) {
+ nfp_warn(app->cpp, "FlowerNIC requires vf_cfg BAR\n");
+ return -EINVAL;
+ }
+
+ version = nfp_rtsym_read_le(app->pf->rtbl, "hw_flower_version", &err);
+ if (err) {
+ nfp_warn(app->cpp, "FlowerNIC requires hw_flower_version memory symbol\n");
+ return err;
+ }
+
+ /* We need to ensure hardware has enough flower capabilities. */
+ if (version != NFP_FLOWER_ALLOWED_VER) {
+ nfp_warn(app->cpp, "FlowerNIC: unsupported firmware version\n");
+ return -EINVAL;
+ }
+
+ app->priv = vzalloc(sizeof(struct nfp_flower_priv));
+ if (!app->priv)
+ return -ENOMEM;
+
+ err = nfp_flower_metadata_init(app);
+ if (err)
+ goto err_free_app_priv;
+
+ return 0;
+
+err_free_app_priv:
+ vfree(app->priv);
+ return err;
+}
+
+static void nfp_flower_clean(struct nfp_app *app)
+{
+ vfree(app->priv);
+ app->priv = NULL;
+}
+
+const struct nfp_app_type app_flower = {
+ .id = NFP_APP_FLOWER_NIC,
+ .name = "flower",
+ .ctrl_has_meta = true,
+
+ .extra_cap = nfp_flower_extra_cap,
+
+ .init = nfp_flower_init,
+ .clean = nfp_flower_clean,
+
+ .vnic_init = nfp_flower_vnic_init,
+
+ .repr_open = nfp_flower_repr_netdev_open,
+ .repr_stop = nfp_flower_repr_netdev_stop,
+
+ .start = nfp_flower_start,
+ .stop = nfp_flower_stop,
+
+ .ctrl_msg_rx = nfp_flower_cmsg_rx,
+
+ .sriov_enable = nfp_flower_sriov_enable,
+ .sriov_disable = nfp_flower_sriov_disable,
+
+ .eswitch_mode_get = eswitch_mode_get,
+ .repr_get = nfp_flower_repr_get,
+
+ .setup_tc = nfp_flower_setup_tc,
+};
diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.h b/drivers/net/ethernet/netronome/nfp/flower/main.h
new file mode 100644
index 000000000000..9e64c048e83f
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/flower/main.h
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef __NFP_FLOWER_H__
+#define __NFP_FLOWER_H__ 1
+
+#include <linux/circ_buf.h>
+#include <linux/hashtable.h>
+#include <linux/time64.h>
+#include <linux/types.h>
+
+struct tc_to_netdev;
+struct net_device;
+struct nfp_app;
+
+#define NFP_FL_STATS_ENTRY_RS BIT(20)
+#define NFP_FL_STATS_ELEM_RS 4
+#define NFP_FL_REPEATED_HASH_MAX BIT(17)
+#define NFP_FLOWER_HASH_BITS 19
+#define NFP_FLOWER_MASK_ENTRY_RS 256
+#define NFP_FLOWER_MASK_ELEMENT_RS 1
+#define NFP_FLOWER_MASK_HASH_BITS 10
+
+#define NFP_FL_META_FLAG_NEW_MASK 128
+#define NFP_FL_META_FLAG_LAST_MASK 1
+
+#define NFP_FL_MASK_REUSE_TIME_NS 40000
+#define NFP_FL_MASK_ID_LOCATION 1
+
+struct nfp_fl_mask_id {
+ struct circ_buf mask_id_free_list;
+ struct timespec64 *last_used;
+ u8 init_unallocated;
+};
+
+struct nfp_fl_stats_id {
+ struct circ_buf free_list;
+ u32 init_unalloc;
+ u8 repeated_em_count;
+};
+
+/**
+ * struct nfp_flower_priv - Flower APP per-vNIC priv data
+ * @nn: Pointer to vNIC
+ * @mask_id_seed: Seed used for mask hash table
+ * @flower_version: HW version of flower
+ * @stats_ids: List of free stats ids
+ * @mask_ids: List of free mask ids
+ * @mask_table: Hash table used to store masks
+ * @flow_table: Hash table used to store flower rules
+ */
+struct nfp_flower_priv {
+ struct nfp_net *nn;
+ u32 mask_id_seed;
+ u64 flower_version;
+ struct nfp_fl_stats_id stats_ids;
+ struct nfp_fl_mask_id mask_ids;
+ DECLARE_HASHTABLE(mask_table, NFP_FLOWER_MASK_HASH_BITS);
+ DECLARE_HASHTABLE(flow_table, NFP_FLOWER_HASH_BITS);
+};
+
+struct nfp_fl_key_ls {
+ u32 key_layer_two;
+ u8 key_layer;
+ int key_size;
+};
+
+struct nfp_fl_rule_metadata {
+ u8 key_len;
+ u8 mask_len;
+ u8 act_len;
+ u8 flags;
+ __be32 host_ctx_id;
+ __be64 host_cookie __packed;
+ __be64 flow_version __packed;
+ __be32 shortcut;
+};
+
+struct nfp_fl_stats {
+ u64 pkts;
+ u64 bytes;
+ u64 used;
+};
+
+struct nfp_fl_payload {
+ struct nfp_fl_rule_metadata meta;
+ unsigned long tc_flower_cookie;
+ struct hlist_node link;
+ struct rcu_head rcu;
+ spinlock_t lock; /* lock stats */
+ struct nfp_fl_stats stats;
+ char *unmasked_data;
+ char *mask_data;
+ char *action_data;
+};
+
+struct nfp_fl_stats_frame {
+ __be32 stats_con_id;
+ __be32 pkt_count;
+ __be64 byte_count;
+ __be64 stats_cookie;
+};
+
+int nfp_flower_metadata_init(struct nfp_app *app);
+void nfp_flower_metadata_cleanup(struct nfp_app *app);
+
+int nfp_flower_setup_tc(struct nfp_app *app, struct net_device *netdev,
+ u32 handle, __be16 proto, struct tc_to_netdev *tc);
+int nfp_flower_compile_flow_match(struct tc_cls_flower_offload *flow,
+ struct nfp_fl_key_ls *key_ls,
+ struct net_device *netdev,
+ struct nfp_fl_payload *nfp_flow);
+int nfp_flower_compile_action(struct tc_cls_flower_offload *flow,
+ struct net_device *netdev,
+ struct nfp_fl_payload *nfp_flow);
+int nfp_compile_flow_metadata(struct nfp_app *app,
+ struct tc_cls_flower_offload *flow,
+ struct nfp_fl_payload *nfp_flow);
+int nfp_modify_flow_metadata(struct nfp_app *app,
+ struct nfp_fl_payload *nfp_flow);
+
+struct nfp_fl_payload *
+nfp_flower_search_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie);
+struct nfp_fl_payload *
+nfp_flower_remove_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie);
+
+void nfp_flower_rx_flow_stats(struct nfp_app *app, struct sk_buff *skb);
+
+#endif
diff --git a/drivers/net/ethernet/netronome/nfp/flower/match.c b/drivers/net/ethernet/netronome/nfp/flower/match.c
new file mode 100644
index 000000000000..0e08404480ef
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/flower/match.c
@@ -0,0 +1,292 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/bitfield.h>
+#include <net/pkt_cls.h>
+
+#include "cmsg.h"
+#include "main.h"
+
+static void
+nfp_flower_compile_meta_tci(struct nfp_flower_meta_two *frame,
+ struct tc_cls_flower_offload *flow, u8 key_type,
+ bool mask_version)
+{
+ struct flow_dissector_key_vlan *flow_vlan;
+ u16 tmp_tci;
+
+ /* Populate the metadata frame. */
+ frame->nfp_flow_key_layer = key_type;
+ frame->mask_id = ~0;
+
+ if (mask_version) {
+ frame->tci = cpu_to_be16(~0);
+ return;
+ }
+
+ flow_vlan = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_VLAN,
+ flow->key);
+
+ /* Populate the tci field. */
+ if (!flow_vlan->vlan_id) {
+ tmp_tci = 0;
+ } else {
+ tmp_tci = FIELD_PREP(NFP_FLOWER_MASK_VLAN_PRIO,
+ flow_vlan->vlan_priority) |
+ FIELD_PREP(NFP_FLOWER_MASK_VLAN_VID,
+ flow_vlan->vlan_id) |
+ NFP_FLOWER_MASK_VLAN_CFI;
+ }
+ frame->tci = cpu_to_be16(tmp_tci);
+}
+
+static void
+nfp_flower_compile_meta(struct nfp_flower_meta_one *frame, u8 key_type)
+{
+ frame->nfp_flow_key_layer = key_type;
+ frame->mask_id = 0;
+ frame->reserved = 0;
+}
+
+static int
+nfp_flower_compile_port(struct nfp_flower_in_port *frame, u32 cmsg_port,
+ bool mask_version)
+{
+ if (mask_version) {
+ frame->in_port = cpu_to_be32(~0);
+ return 0;
+ }
+
+ frame->in_port = cpu_to_be32(cmsg_port);
+
+ return 0;
+}
+
+static void
+nfp_flower_compile_mac(struct nfp_flower_mac_mpls *frame,
+ struct tc_cls_flower_offload *flow,
+ bool mask_version)
+{
+ struct fl_flow_key *target = mask_version ? flow->mask : flow->key;
+ struct flow_dissector_key_eth_addrs *flow_mac;
+
+ flow_mac = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_ETH_ADDRS,
+ target);
+
+ memset(frame, 0, sizeof(struct nfp_flower_mac_mpls));
+
+ /* Populate mac frame. */
+ ether_addr_copy(frame->mac_dst, &flow_mac->dst[0]);
+ ether_addr_copy(frame->mac_src, &flow_mac->src[0]);
+
+ if (mask_version)
+ frame->mpls_lse = cpu_to_be32(~0);
+}
+
+static void
+nfp_flower_compile_tport(struct nfp_flower_tp_ports *frame,
+ struct tc_cls_flower_offload *flow,
+ bool mask_version)
+{
+ struct fl_flow_key *target = mask_version ? flow->mask : flow->key;
+ struct flow_dissector_key_ports *flow_tp;
+
+ flow_tp = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_PORTS,
+ target);
+
+ frame->port_src = flow_tp->src;
+ frame->port_dst = flow_tp->dst;
+}
+
+static void
+nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *frame,
+ struct tc_cls_flower_offload *flow,
+ bool mask_version)
+{
+ struct fl_flow_key *target = mask_version ? flow->mask : flow->key;
+ struct flow_dissector_key_ipv4_addrs *flow_ipv4;
+ struct flow_dissector_key_basic *flow_basic;
+
+ flow_ipv4 = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_IPV4_ADDRS,
+ target);
+
+ flow_basic = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_BASIC,
+ target);
+
+ /* Populate IPv4 frame. */
+ frame->reserved = 0;
+ frame->ipv4_src = flow_ipv4->src;
+ frame->ipv4_dst = flow_ipv4->dst;
+ frame->proto = flow_basic->ip_proto;
+ /* Wildcard TOS/TTL for now. */
+ frame->tos = 0;
+ frame->ttl = 0;
+}
+
+static void
+nfp_flower_compile_ipv6(struct nfp_flower_ipv6 *frame,
+ struct tc_cls_flower_offload *flow,
+ bool mask_version)
+{
+ struct fl_flow_key *target = mask_version ? flow->mask : flow->key;
+ struct flow_dissector_key_ipv6_addrs *flow_ipv6;
+ struct flow_dissector_key_basic *flow_basic;
+
+ flow_ipv6 = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_IPV6_ADDRS,
+ target);
+
+ flow_basic = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_BASIC,
+ target);
+
+ /* Populate IPv6 frame. */
+ frame->reserved = 0;
+ frame->ipv6_src = flow_ipv6->src;
+ frame->ipv6_dst = flow_ipv6->dst;
+ frame->proto = flow_basic->ip_proto;
+ /* Wildcard LABEL/TOS/TTL for now. */
+ frame->ipv6_flow_label_exthdr = 0;
+ frame->tos = 0;
+ frame->ttl = 0;
+}
+
+int nfp_flower_compile_flow_match(struct tc_cls_flower_offload *flow,
+ struct nfp_fl_key_ls *key_ls,
+ struct net_device *netdev,
+ struct nfp_fl_payload *nfp_flow)
+{
+ int err;
+ u8 *ext;
+ u8 *msk;
+
+ memset(nfp_flow->unmasked_data, 0, key_ls->key_size);
+ memset(nfp_flow->mask_data, 0, key_ls->key_size);
+
+ ext = nfp_flow->unmasked_data;
+ msk = nfp_flow->mask_data;
+ if (NFP_FLOWER_LAYER_PORT & key_ls->key_layer) {
+ /* Populate Exact Metadata. */
+ nfp_flower_compile_meta_tci((struct nfp_flower_meta_two *)ext,
+ flow, key_ls->key_layer, false);
+ /* Populate Mask Metadata. */
+ nfp_flower_compile_meta_tci((struct nfp_flower_meta_two *)msk,
+ flow, key_ls->key_layer, true);
+ ext += sizeof(struct nfp_flower_meta_two);
+ msk += sizeof(struct nfp_flower_meta_two);
+
+ /* Populate Exact Port data. */
+ err = nfp_flower_compile_port((struct nfp_flower_in_port *)ext,
+ nfp_repr_get_port_id(netdev),
+ false);
+ if (err)
+ return err;
+
+ /* Populate Mask Port Data. */
+ err = nfp_flower_compile_port((struct nfp_flower_in_port *)msk,
+ nfp_repr_get_port_id(netdev),
+ true);
+ if (err)
+ return err;
+
+ ext += sizeof(struct nfp_flower_in_port);
+ msk += sizeof(struct nfp_flower_in_port);
+ } else {
+ /* Populate Exact Metadata. */
+ nfp_flower_compile_meta((struct nfp_flower_meta_one *)ext,
+ key_ls->key_layer);
+ /* Populate Mask Metadata. */
+ nfp_flower_compile_meta((struct nfp_flower_meta_one *)msk,
+ key_ls->key_layer);
+ ext += sizeof(struct nfp_flower_meta_one);
+ msk += sizeof(struct nfp_flower_meta_one);
+ }
+
+ if (NFP_FLOWER_LAYER_META & key_ls->key_layer) {
+ /* Additional Metadata Fields.
+ * Currently unsupported.
+ */
+ return -EOPNOTSUPP;
+ }
+
+ if (NFP_FLOWER_LAYER_MAC & key_ls->key_layer) {
+ /* Populate Exact MAC Data. */
+ nfp_flower_compile_mac((struct nfp_flower_mac_mpls *)ext,
+ flow, false);
+ /* Populate Mask MAC Data. */
+ nfp_flower_compile_mac((struct nfp_flower_mac_mpls *)msk,
+ flow, true);
+ ext += sizeof(struct nfp_flower_mac_mpls);
+ msk += sizeof(struct nfp_flower_mac_mpls);
+ }
+
+ if (NFP_FLOWER_LAYER_TP & key_ls->key_layer) {
+ /* Populate Exact TP Data. */
+ nfp_flower_compile_tport((struct nfp_flower_tp_ports *)ext,
+ flow, false);
+ /* Populate Mask TP Data. */
+ nfp_flower_compile_tport((struct nfp_flower_tp_ports *)msk,
+ flow, true);
+ ext += sizeof(struct nfp_flower_tp_ports);
+ msk += sizeof(struct nfp_flower_tp_ports);
+ }
+
+ if (NFP_FLOWER_LAYER_IPV4 & key_ls->key_layer) {
+ /* Populate Exact IPv4 Data. */
+ nfp_flower_compile_ipv4((struct nfp_flower_ipv4 *)ext,
+ flow, false);
+ /* Populate Mask IPv4 Data. */
+ nfp_flower_compile_ipv4((struct nfp_flower_ipv4 *)msk,
+ flow, true);
+ ext += sizeof(struct nfp_flower_ipv4);
+ msk += sizeof(struct nfp_flower_ipv4);
+ }
+
+ if (NFP_FLOWER_LAYER_IPV6 & key_ls->key_layer) {
+ /* Populate Exact IPv4 Data. */
+ nfp_flower_compile_ipv6((struct nfp_flower_ipv6 *)ext,
+ flow, false);
+ /* Populate Mask IPv4 Data. */
+ nfp_flower_compile_ipv6((struct nfp_flower_ipv6 *)msk,
+ flow, true);
+ ext += sizeof(struct nfp_flower_ipv6);
+ msk += sizeof(struct nfp_flower_ipv6);
+ }
+
+ return 0;
+}
diff --git a/drivers/net/ethernet/netronome/nfp/flower/metadata.c b/drivers/net/ethernet/netronome/nfp/flower/metadata.c
new file mode 100644
index 000000000000..fec0ff2ca94f
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/flower/metadata.c
@@ -0,0 +1,438 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/hash.h>
+#include <linux/hashtable.h>
+#include <linux/jhash.h>
+#include <linux/vmalloc.h>
+#include <net/pkt_cls.h>
+
+#include "cmsg.h"
+#include "main.h"
+#include "../nfp_app.h"
+
+struct nfp_mask_id_table {
+ struct hlist_node link;
+ u32 hash_key;
+ u32 ref_cnt;
+ u8 mask_id;
+};
+
+static int nfp_release_stats_entry(struct nfp_app *app, u32 stats_context_id)
+{
+ struct nfp_flower_priv *priv = app->priv;
+ struct circ_buf *ring;
+
+ ring = &priv->stats_ids.free_list;
+ /* Check if buffer is full. */
+ if (!CIRC_SPACE(ring->head, ring->tail, NFP_FL_STATS_ENTRY_RS *
+ NFP_FL_STATS_ELEM_RS -
+ NFP_FL_STATS_ELEM_RS + 1))
+ return -ENOBUFS;
+
+ memcpy(&ring->buf[ring->head], &stats_context_id, NFP_FL_STATS_ELEM_RS);
+ ring->head = (ring->head + NFP_FL_STATS_ELEM_RS) %
+ (NFP_FL_STATS_ENTRY_RS * NFP_FL_STATS_ELEM_RS);
+
+ return 0;
+}
+
+static int nfp_get_stats_entry(struct nfp_app *app, u32 *stats_context_id)
+{
+ struct nfp_flower_priv *priv = app->priv;
+ u32 freed_stats_id, temp_stats_id;
+ struct circ_buf *ring;
+
+ ring = &priv->stats_ids.free_list;
+ freed_stats_id = NFP_FL_STATS_ENTRY_RS;
+ /* Check for unallocated entries first. */
+ if (priv->stats_ids.init_unalloc > 0) {
+ *stats_context_id = priv->stats_ids.init_unalloc - 1;
+ priv->stats_ids.init_unalloc--;
+ return 0;
+ }
+
+ /* Check if buffer is empty. */
+ if (ring->head == ring->tail) {
+ *stats_context_id = freed_stats_id;
+ return -ENOENT;
+ }
+
+ memcpy(&temp_stats_id, &ring->buf[ring->tail], NFP_FL_STATS_ELEM_RS);
+ *stats_context_id = temp_stats_id;
+ memcpy(&ring->buf[ring->tail], &freed_stats_id, NFP_FL_STATS_ELEM_RS);
+ ring->tail = (ring->tail + NFP_FL_STATS_ELEM_RS) %
+ (NFP_FL_STATS_ENTRY_RS * NFP_FL_STATS_ELEM_RS);
+
+ return 0;
+}
+
+/* Must be called with either RTNL or rcu_read_lock */
+struct nfp_fl_payload *
+nfp_flower_search_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie)
+{
+ struct nfp_flower_priv *priv = app->priv;
+ struct nfp_fl_payload *flower_entry;
+
+ hash_for_each_possible_rcu(priv->flow_table, flower_entry, link,
+ tc_flower_cookie)
+ if (flower_entry->tc_flower_cookie == tc_flower_cookie)
+ return flower_entry;
+
+ return NULL;
+}
+
+static void
+nfp_flower_update_stats(struct nfp_app *app, struct nfp_fl_stats_frame *stats)
+{
+ struct nfp_fl_payload *nfp_flow;
+ unsigned long flower_cookie;
+
+ flower_cookie = be64_to_cpu(stats->stats_cookie);
+
+ rcu_read_lock();
+ nfp_flow = nfp_flower_search_fl_table(app, flower_cookie);
+ if (!nfp_flow)
+ goto exit_rcu_unlock;
+
+ if (nfp_flow->meta.host_ctx_id != stats->stats_con_id)
+ goto exit_rcu_unlock;
+
+ spin_lock(&nfp_flow->lock);
+ nfp_flow->stats.pkts += be32_to_cpu(stats->pkt_count);
+ nfp_flow->stats.bytes += be64_to_cpu(stats->byte_count);
+ nfp_flow->stats.used = jiffies;
+ spin_unlock(&nfp_flow->lock);
+
+exit_rcu_unlock:
+ rcu_read_unlock();
+}
+
+void nfp_flower_rx_flow_stats(struct nfp_app *app, struct sk_buff *skb)
+{
+ unsigned int msg_len = skb->len - NFP_FLOWER_CMSG_HLEN;
+ struct nfp_fl_stats_frame *stats_frame;
+ unsigned char *msg;
+ int i;
+
+ msg = nfp_flower_cmsg_get_data(skb);
+
+ stats_frame = (struct nfp_fl_stats_frame *)msg;
+ for (i = 0; i < msg_len / sizeof(*stats_frame); i++)
+ nfp_flower_update_stats(app, stats_frame + i);
+}
+
+static int nfp_release_mask_id(struct nfp_app *app, u8 mask_id)
+{
+ struct nfp_flower_priv *priv = app->priv;
+ struct circ_buf *ring;
+ struct timespec64 now;
+
+ ring = &priv->mask_ids.mask_id_free_list;
+ /* Checking if buffer is full. */
+ if (CIRC_SPACE(ring->head, ring->tail, NFP_FLOWER_MASK_ENTRY_RS) == 0)
+ return -ENOBUFS;
+
+ memcpy(&ring->buf[ring->head], &mask_id, NFP_FLOWER_MASK_ELEMENT_RS);
+ ring->head = (ring->head + NFP_FLOWER_MASK_ELEMENT_RS) %
+ (NFP_FLOWER_MASK_ENTRY_RS * NFP_FLOWER_MASK_ELEMENT_RS);
+
+ getnstimeofday64(&now);
+ priv->mask_ids.last_used[mask_id] = now;
+
+ return 0;
+}
+
+static int nfp_mask_alloc(struct nfp_app *app, u8 *mask_id)
+{
+ struct nfp_flower_priv *priv = app->priv;
+ struct timespec64 delta, now;
+ struct circ_buf *ring;
+ u8 temp_id, freed_id;
+
+ ring = &priv->mask_ids.mask_id_free_list;
+ freed_id = NFP_FLOWER_MASK_ENTRY_RS - 1;
+ /* Checking for unallocated entries first. */
+ if (priv->mask_ids.init_unallocated > 0) {
+ *mask_id = priv->mask_ids.init_unallocated;
+ priv->mask_ids.init_unallocated--;
+ return 0;
+ }
+
+ /* Checking if buffer is empty. */
+ if (ring->head == ring->tail)
+ goto err_not_found;
+
+ memcpy(&temp_id, &ring->buf[ring->tail], NFP_FLOWER_MASK_ELEMENT_RS);
+ *mask_id = temp_id;
+
+ getnstimeofday64(&now);
+ delta = timespec64_sub(now, priv->mask_ids.last_used[*mask_id]);
+
+ if (timespec64_to_ns(&delta) < NFP_FL_MASK_REUSE_TIME_NS)
+ goto err_not_found;
+
+ memcpy(&ring->buf[ring->tail], &freed_id, NFP_FLOWER_MASK_ELEMENT_RS);
+ ring->tail = (ring->tail + NFP_FLOWER_MASK_ELEMENT_RS) %
+ (NFP_FLOWER_MASK_ENTRY_RS * NFP_FLOWER_MASK_ELEMENT_RS);
+
+ return 0;
+
+err_not_found:
+ *mask_id = freed_id;
+ return -ENOENT;
+}
+
+static int
+nfp_add_mask_table(struct nfp_app *app, char *mask_data, u32 mask_len)
+{
+ struct nfp_flower_priv *priv = app->priv;
+ struct nfp_mask_id_table *mask_entry;
+ unsigned long hash_key;
+ u8 mask_id;
+
+ if (nfp_mask_alloc(app, &mask_id))
+ return -ENOENT;
+
+ mask_entry = kmalloc(sizeof(*mask_entry), GFP_KERNEL);
+ if (!mask_entry) {
+ nfp_release_mask_id(app, mask_id);
+ return -ENOMEM;
+ }
+
+ INIT_HLIST_NODE(&mask_entry->link);
+ mask_entry->mask_id = mask_id;
+ hash_key = jhash(mask_data, mask_len, priv->mask_id_seed);
+ mask_entry->hash_key = hash_key;
+ mask_entry->ref_cnt = 1;
+ hash_add(priv->mask_table, &mask_entry->link, hash_key);
+
+ return mask_id;
+}
+
+static struct nfp_mask_id_table *
+nfp_search_mask_table(struct nfp_app *app, char *mask_data, u32 mask_len)
+{
+ struct nfp_flower_priv *priv = app->priv;
+ struct nfp_mask_id_table *mask_entry;
+ unsigned long hash_key;
+
+ hash_key = jhash(mask_data, mask_len, priv->mask_id_seed);
+
+ hash_for_each_possible(priv->mask_table, mask_entry, link, hash_key)
+ if (mask_entry->hash_key == hash_key)
+ return mask_entry;
+
+ return NULL;
+}
+
+static int
+nfp_find_in_mask_table(struct nfp_app *app, char *mask_data, u32 mask_len)
+{
+ struct nfp_mask_id_table *mask_entry;
+
+ mask_entry = nfp_search_mask_table(app, mask_data, mask_len);
+ if (!mask_entry)
+ return -ENOENT;
+
+ mask_entry->ref_cnt++;
+
+ /* Casting u8 to int for later use. */
+ return mask_entry->mask_id;
+}
+
+static bool
+nfp_check_mask_add(struct nfp_app *app, char *mask_data, u32 mask_len,
+ u8 *meta_flags, u8 *mask_id)
+{
+ int id;
+
+ id = nfp_find_in_mask_table(app, mask_data, mask_len);
+ if (id < 0) {
+ id = nfp_add_mask_table(app, mask_data, mask_len);
+ if (id < 0)
+ return false;
+ *meta_flags |= NFP_FL_META_FLAG_NEW_MASK;
+ }
+ *mask_id = id;
+
+ return true;
+}
+
+static bool
+nfp_check_mask_remove(struct nfp_app *app, char *mask_data, u32 mask_len,
+ u8 *meta_flags, u8 *mask_id)
+{
+ struct nfp_mask_id_table *mask_entry;
+
+ mask_entry = nfp_search_mask_table(app, mask_data, mask_len);
+ if (!mask_entry)
+ return false;
+
+ *mask_id = mask_entry->mask_id;
+ mask_entry->ref_cnt--;
+ if (!mask_entry->ref_cnt) {
+ hash_del(&mask_entry->link);
+ nfp_release_mask_id(app, *mask_id);
+ kfree(mask_entry);
+ if (meta_flags)
+ *meta_flags |= NFP_FL_META_FLAG_LAST_MASK;
+ }
+
+ return true;
+}
+
+int nfp_compile_flow_metadata(struct nfp_app *app,
+ struct tc_cls_flower_offload *flow,
+ struct nfp_fl_payload *nfp_flow)
+{
+ struct nfp_flower_priv *priv = app->priv;
+ struct nfp_fl_payload *check_entry;
+ u8 new_mask_id;
+ u32 stats_cxt;
+
+ if (nfp_get_stats_entry(app, &stats_cxt))
+ return -ENOENT;
+
+ nfp_flow->meta.host_ctx_id = cpu_to_be32(stats_cxt);
+ nfp_flow->meta.host_cookie = cpu_to_be64(flow->cookie);
+
+ new_mask_id = 0;
+ if (!nfp_check_mask_add(app, nfp_flow->mask_data,
+ nfp_flow->meta.mask_len,
+ &nfp_flow->meta.flags, &new_mask_id)) {
+ if (nfp_release_stats_entry(app, stats_cxt))
+ return -EINVAL;
+ return -ENOENT;
+ }
+
+ nfp_flow->meta.flow_version = cpu_to_be64(priv->flower_version);
+ priv->flower_version++;
+
+ /* Update flow payload with mask ids. */
+ nfp_flow->unmasked_data[NFP_FL_MASK_ID_LOCATION] = new_mask_id;
+ nfp_flow->stats.pkts = 0;
+ nfp_flow->stats.bytes = 0;
+ nfp_flow->stats.used = jiffies;
+
+ check_entry = nfp_flower_search_fl_table(app, flow->cookie);
+ if (check_entry) {
+ if (nfp_release_stats_entry(app, stats_cxt))
+ return -EINVAL;
+
+ if (!nfp_check_mask_remove(app, nfp_flow->mask_data,
+ nfp_flow->meta.mask_len,
+ NULL, &new_mask_id))
+ return -EINVAL;
+
+ return -EEXIST;
+ }
+
+ return 0;
+}
+
+int nfp_modify_flow_metadata(struct nfp_app *app,
+ struct nfp_fl_payload *nfp_flow)
+{
+ struct nfp_flower_priv *priv = app->priv;
+ u8 new_mask_id = 0;
+ u32 temp_ctx_id;
+
+ nfp_check_mask_remove(app, nfp_flow->mask_data,
+ nfp_flow->meta.mask_len, &nfp_flow->meta.flags,
+ &new_mask_id);
+
+ nfp_flow->meta.flow_version = cpu_to_be64(priv->flower_version);
+ priv->flower_version++;
+
+ /* Update flow payload with mask ids. */
+ nfp_flow->unmasked_data[NFP_FL_MASK_ID_LOCATION] = new_mask_id;
+
+ /* Release the stats ctx id. */
+ temp_ctx_id = be32_to_cpu(nfp_flow->meta.host_ctx_id);
+
+ return nfp_release_stats_entry(app, temp_ctx_id);
+}
+
+int nfp_flower_metadata_init(struct nfp_app *app)
+{
+ struct nfp_flower_priv *priv = app->priv;
+
+ hash_init(priv->mask_table);
+ hash_init(priv->flow_table);
+ get_random_bytes(&priv->mask_id_seed, sizeof(priv->mask_id_seed));
+
+ /* Init ring buffer and unallocated mask_ids. */
+ priv->mask_ids.mask_id_free_list.buf =
+ kmalloc_array(NFP_FLOWER_MASK_ENTRY_RS,
+ NFP_FLOWER_MASK_ELEMENT_RS, GFP_KERNEL);
+ if (!priv->mask_ids.mask_id_free_list.buf)
+ return -ENOMEM;
+
+ priv->mask_ids.init_unallocated = NFP_FLOWER_MASK_ENTRY_RS - 1;
+
+ /* Init timestamps for mask id*/
+ priv->mask_ids.last_used =
+ kmalloc_array(NFP_FLOWER_MASK_ENTRY_RS,
+ sizeof(*priv->mask_ids.last_used), GFP_KERNEL);
+ if (!priv->mask_ids.last_used)
+ goto err_free_mask_id;
+
+ /* Init ring buffer and unallocated stats_ids. */
+ priv->stats_ids.free_list.buf =
+ vmalloc(NFP_FL_STATS_ENTRY_RS * NFP_FL_STATS_ELEM_RS);
+ if (!priv->stats_ids.free_list.buf)
+ goto err_free_last_used;
+
+ priv->stats_ids.init_unalloc = NFP_FL_REPEATED_HASH_MAX;
+
+ return 0;
+
+err_free_last_used:
+ kfree(priv->stats_ids.free_list.buf);
+err_free_mask_id:
+ kfree(priv->mask_ids.mask_id_free_list.buf);
+ return -ENOMEM;
+}
+
+void nfp_flower_metadata_cleanup(struct nfp_app *app)
+{
+ struct nfp_flower_priv *priv = app->priv;
+
+ if (!priv)
+ return;
+
+ kfree(priv->mask_ids.mask_id_free_list.buf);
+ kfree(priv->mask_ids.last_used);
+ vfree(priv->stats_ids.free_list.buf);
+}
diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c
new file mode 100644
index 000000000000..4ad10bd5e139
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c
@@ -0,0 +1,400 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/skbuff.h>
+#include <net/devlink.h>
+#include <net/pkt_cls.h>
+
+#include "cmsg.h"
+#include "main.h"
+#include "../nfpcore/nfp_cpp.h"
+#include "../nfpcore/nfp_nsp.h"
+#include "../nfp_app.h"
+#include "../nfp_main.h"
+#include "../nfp_net.h"
+#include "../nfp_port.h"
+
+static int
+nfp_flower_xmit_flow(struct net_device *netdev,
+ struct nfp_fl_payload *nfp_flow, u8 mtype)
+{
+ u32 meta_len, key_len, mask_len, act_len, tot_len;
+ struct nfp_repr *priv = netdev_priv(netdev);
+ struct sk_buff *skb;
+ unsigned char *msg;
+
+ meta_len = sizeof(struct nfp_fl_rule_metadata);
+ key_len = nfp_flow->meta.key_len;
+ mask_len = nfp_flow->meta.mask_len;
+ act_len = nfp_flow->meta.act_len;
+
+ tot_len = meta_len + key_len + mask_len + act_len;
+
+ /* Convert to long words as firmware expects
+ * lengths in units of NFP_FL_LW_SIZ.
+ */
+ nfp_flow->meta.key_len >>= NFP_FL_LW_SIZ;
+ nfp_flow->meta.mask_len >>= NFP_FL_LW_SIZ;
+ nfp_flow->meta.act_len >>= NFP_FL_LW_SIZ;
+
+ skb = nfp_flower_cmsg_alloc(priv->app, tot_len, mtype);
+ if (!skb)
+ return -ENOMEM;
+
+ msg = nfp_flower_cmsg_get_data(skb);
+ memcpy(msg, &nfp_flow->meta, meta_len);
+ memcpy(&msg[meta_len], nfp_flow->unmasked_data, key_len);
+ memcpy(&msg[meta_len + key_len], nfp_flow->mask_data, mask_len);
+ memcpy(&msg[meta_len + key_len + mask_len],
+ nfp_flow->action_data, act_len);
+
+ /* Convert back to bytes as software expects
+ * lengths in units of bytes.
+ */
+ nfp_flow->meta.key_len <<= NFP_FL_LW_SIZ;
+ nfp_flow->meta.mask_len <<= NFP_FL_LW_SIZ;
+ nfp_flow->meta.act_len <<= NFP_FL_LW_SIZ;
+
+ nfp_ctrl_tx(priv->app->ctrl, skb);
+
+ return 0;
+}
+
+static bool nfp_flower_check_higher_than_mac(struct tc_cls_flower_offload *f)
+{
+ return dissector_uses_key(f->dissector,
+ FLOW_DISSECTOR_KEY_IPV4_ADDRS) ||
+ dissector_uses_key(f->dissector,
+ FLOW_DISSECTOR_KEY_IPV6_ADDRS) ||
+ dissector_uses_key(f->dissector,
+ FLOW_DISSECTOR_KEY_PORTS) ||
+ dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ICMP);
+}
+
+static int
+nfp_flower_calculate_key_layers(struct nfp_fl_key_ls *ret_key_ls,
+ struct tc_cls_flower_offload *flow)
+{
+ struct flow_dissector_key_control *mask_enc_ctl;
+ struct flow_dissector_key_basic *mask_basic;
+ struct flow_dissector_key_basic *key_basic;
+ u32 key_layer_two;
+ u8 key_layer;
+ int key_size;
+
+ mask_enc_ctl = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_ENC_CONTROL,
+ flow->mask);
+
+ mask_basic = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_BASIC,
+ flow->mask);
+
+ key_basic = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_BASIC,
+ flow->key);
+ key_layer_two = 0;
+ key_layer = NFP_FLOWER_LAYER_PORT | NFP_FLOWER_LAYER_MAC;
+ key_size = sizeof(struct nfp_flower_meta_one) +
+ sizeof(struct nfp_flower_in_port) +
+ sizeof(struct nfp_flower_mac_mpls);
+
+ /* We are expecting a tunnel. For now we ignore offloading. */
+ if (mask_enc_ctl->addr_type)
+ return -EOPNOTSUPP;
+
+ if (mask_basic->n_proto) {
+ /* Ethernet type is present in the key. */
+ switch (key_basic->n_proto) {
+ case cpu_to_be16(ETH_P_IP):
+ key_layer |= NFP_FLOWER_LAYER_IPV4;
+ key_size += sizeof(struct nfp_flower_ipv4);
+ break;
+
+ case cpu_to_be16(ETH_P_IPV6):
+ key_layer |= NFP_FLOWER_LAYER_IPV6;
+ key_size += sizeof(struct nfp_flower_ipv6);
+ break;
+
+ /* Currently we do not offload ARP
+ * because we rely on it to get to the host.
+ */
+ case cpu_to_be16(ETH_P_ARP):
+ return -EOPNOTSUPP;
+
+ /* Will be included in layer 2. */
+ case cpu_to_be16(ETH_P_8021Q):
+ break;
+
+ default:
+ /* Other ethtype - we need check the masks for the
+ * remainder of the key to ensure we can offload.
+ */
+ if (nfp_flower_check_higher_than_mac(flow))
+ return -EOPNOTSUPP;
+ break;
+ }
+ }
+
+ if (mask_basic->ip_proto) {
+ /* Ethernet type is present in the key. */
+ switch (key_basic->ip_proto) {
+ case IPPROTO_TCP:
+ case IPPROTO_UDP:
+ case IPPROTO_SCTP:
+ case IPPROTO_ICMP:
+ case IPPROTO_ICMPV6:
+ key_layer |= NFP_FLOWER_LAYER_TP;
+ key_size += sizeof(struct nfp_flower_tp_ports);
+ break;
+ default:
+ /* Other ip proto - we need check the masks for the
+ * remainder of the key to ensure we can offload.
+ */
+ return -EOPNOTSUPP;
+ }
+ }
+
+ ret_key_ls->key_layer = key_layer;
+ ret_key_ls->key_layer_two = key_layer_two;
+ ret_key_ls->key_size = key_size;
+
+ return 0;
+}
+
+static struct nfp_fl_payload *
+nfp_flower_allocate_new(struct nfp_fl_key_ls *key_layer)
+{
+ struct nfp_fl_payload *flow_pay;
+
+ flow_pay = kmalloc(sizeof(*flow_pay), GFP_KERNEL);
+ if (!flow_pay)
+ return NULL;
+
+ flow_pay->meta.key_len = key_layer->key_size;
+ flow_pay->unmasked_data = kmalloc(key_layer->key_size, GFP_KERNEL);
+ if (!flow_pay->unmasked_data)
+ goto err_free_flow;
+
+ flow_pay->meta.mask_len = key_layer->key_size;
+ flow_pay->mask_data = kmalloc(key_layer->key_size, GFP_KERNEL);
+ if (!flow_pay->mask_data)
+ goto err_free_unmasked;
+
+ flow_pay->action_data = kmalloc(NFP_FL_MAX_A_SIZ, GFP_KERNEL);
+ if (!flow_pay->action_data)
+ goto err_free_mask;
+
+ flow_pay->meta.flags = 0;
+ spin_lock_init(&flow_pay->lock);
+
+ return flow_pay;
+
+err_free_mask:
+ kfree(flow_pay->mask_data);
+err_free_unmasked:
+ kfree(flow_pay->unmasked_data);
+err_free_flow:
+ kfree(flow_pay);
+ return NULL;
+}
+
+/**
+ * nfp_flower_add_offload() - Adds a new flow to hardware.
+ * @app: Pointer to the APP handle
+ * @netdev: netdev structure.
+ * @flow: TC flower classifier offload structure.
+ *
+ * Adds a new flow to the repeated hash structure and action payload.
+ *
+ * Return: negative value on error, 0 if configured successfully.
+ */
+static int
+nfp_flower_add_offload(struct nfp_app *app, struct net_device *netdev,
+ struct tc_cls_flower_offload *flow)
+{
+ struct nfp_flower_priv *priv = app->priv;
+ struct nfp_fl_payload *flow_pay;
+ struct nfp_fl_key_ls *key_layer;
+ int err;
+
+ key_layer = kmalloc(sizeof(*key_layer), GFP_KERNEL);
+ if (!key_layer)
+ return -ENOMEM;
+
+ err = nfp_flower_calculate_key_layers(key_layer, flow);
+ if (err)
+ goto err_free_key_ls;
+
+ flow_pay = nfp_flower_allocate_new(key_layer);
+ if (!flow_pay) {
+ err = -ENOMEM;
+ goto err_free_key_ls;
+ }
+
+ err = nfp_flower_compile_flow_match(flow, key_layer, netdev, flow_pay);
+ if (err)
+ goto err_destroy_flow;
+
+ err = nfp_flower_compile_action(flow, netdev, flow_pay);
+ if (err)
+ goto err_destroy_flow;
+
+ err = nfp_compile_flow_metadata(app, flow, flow_pay);
+ if (err)
+ goto err_destroy_flow;
+
+ err = nfp_flower_xmit_flow(netdev, flow_pay,
+ NFP_FLOWER_CMSG_TYPE_FLOW_ADD);
+ if (err)
+ goto err_destroy_flow;
+
+ INIT_HLIST_NODE(&flow_pay->link);
+ flow_pay->tc_flower_cookie = flow->cookie;
+ hash_add_rcu(priv->flow_table, &flow_pay->link, flow->cookie);
+
+ /* Deallocate flow payload when flower rule has been destroyed. */
+ kfree(key_layer);
+
+ return 0;
+
+err_destroy_flow:
+ kfree(flow_pay->action_data);
+ kfree(flow_pay->mask_data);
+ kfree(flow_pay->unmasked_data);
+ kfree(flow_pay);
+err_free_key_ls:
+ kfree(key_layer);
+ return err;
+}
+
+/**
+ * nfp_flower_del_offload() - Removes a flow from hardware.
+ * @app: Pointer to the APP handle
+ * @netdev: netdev structure.
+ * @flow: TC flower classifier offload structure
+ *
+ * Removes a flow from the repeated hash structure and clears the
+ * action payload.
+ *
+ * Return: negative value on error, 0 if removed successfully.
+ */
+static int
+nfp_flower_del_offload(struct nfp_app *app, struct net_device *netdev,
+ struct tc_cls_flower_offload *flow)
+{
+ struct nfp_fl_payload *nfp_flow;
+ int err;
+
+ nfp_flow = nfp_flower_search_fl_table(app, flow->cookie);
+ if (!nfp_flow)
+ return -ENOENT;
+
+ err = nfp_modify_flow_metadata(app, nfp_flow);
+ if (err)
+ goto err_free_flow;
+
+ err = nfp_flower_xmit_flow(netdev, nfp_flow,
+ NFP_FLOWER_CMSG_TYPE_FLOW_DEL);
+ if (err)
+ goto err_free_flow;
+
+err_free_flow:
+ hash_del_rcu(&nfp_flow->link);
+ kfree(nfp_flow->action_data);
+ kfree(nfp_flow->mask_data);
+ kfree(nfp_flow->unmasked_data);
+ kfree_rcu(nfp_flow, rcu);
+ return err;
+}
+
+/**
+ * nfp_flower_get_stats() - Populates flow stats obtained from hardware.
+ * @app: Pointer to the APP handle
+ * @flow: TC flower classifier offload structure
+ *
+ * Populates a flow statistics structure which which corresponds to a
+ * specific flow.
+ *
+ * Return: negative value on error, 0 if stats populated successfully.
+ */
+static int
+nfp_flower_get_stats(struct nfp_app *app, struct tc_cls_flower_offload *flow)
+{
+ struct nfp_fl_payload *nfp_flow;
+
+ nfp_flow = nfp_flower_search_fl_table(app, flow->cookie);
+ if (!nfp_flow)
+ return -EINVAL;
+
+ spin_lock_bh(&nfp_flow->lock);
+ tcf_exts_stats_update(flow->exts, nfp_flow->stats.bytes,
+ nfp_flow->stats.pkts, nfp_flow->stats.used);
+
+ nfp_flow->stats.pkts = 0;
+ nfp_flow->stats.bytes = 0;
+ spin_unlock_bh(&nfp_flow->lock);
+
+ return 0;
+}
+
+static int
+nfp_flower_repr_offload(struct nfp_app *app, struct net_device *netdev,
+ struct tc_cls_flower_offload *flower)
+{
+ switch (flower->command) {
+ case TC_CLSFLOWER_REPLACE:
+ return nfp_flower_add_offload(app, netdev, flower);
+ case TC_CLSFLOWER_DESTROY:
+ return nfp_flower_del_offload(app, netdev, flower);
+ case TC_CLSFLOWER_STATS:
+ return nfp_flower_get_stats(app, flower);
+ }
+
+ return -EOPNOTSUPP;
+}
+
+int nfp_flower_setup_tc(struct nfp_app *app, struct net_device *netdev,
+ u32 handle, __be16 proto, struct tc_to_netdev *tc)
+{
+ if (TC_H_MAJ(handle) != TC_H_MAJ(TC_H_INGRESS))
+ return -EOPNOTSUPP;
+
+ if (!eth_proto_is_802_3(proto))
+ return -EOPNOTSUPP;
+
+ if (tc->type != TC_SETUP_CLSFLOWER)
+ return -EINVAL;
+
+ return nfp_flower_repr_offload(app, netdev, tc->cls_flower);
+}
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.c b/drivers/net/ethernet/netronome/nfp/nfp_app.c
new file mode 100644
index 000000000000..c704c022574f
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nfp_app.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+
+#include "nfpcore/nfp_cpp.h"
+#include "nfpcore/nfp_nffw.h"
+#include "nfp_app.h"
+#include "nfp_main.h"
+#include "nfp_net_repr.h"
+
+static const struct nfp_app_type *apps[] = {
+ &app_nic,
+ &app_bpf,
+#ifdef CONFIG_NFP_APP_FLOWER
+ &app_flower,
+#endif
+};
+
+const char *nfp_app_mip_name(struct nfp_app *app)
+{
+ if (!app || !app->pf->mip)
+ return "";
+ return nfp_mip_name(app->pf->mip);
+}
+
+struct sk_buff *
+nfp_app_ctrl_msg_alloc(struct nfp_app *app, unsigned int size, gfp_t priority)
+{
+ struct sk_buff *skb;
+
+ if (nfp_app_ctrl_has_meta(app))
+ size += 8;
+
+ skb = alloc_skb(size, priority);
+ if (!skb)
+ return NULL;
+
+ if (nfp_app_ctrl_has_meta(app))
+ skb_reserve(skb, 8);
+
+ return skb;
+}
+
+struct nfp_reprs *
+nfp_app_reprs_set(struct nfp_app *app, enum nfp_repr_type type,
+ struct nfp_reprs *reprs)
+{
+ struct nfp_reprs *old;
+
+ old = rcu_dereference_protected(app->reprs[type],
+ lockdep_is_held(&app->pf->lock));
+ if (reprs && old) {
+ old = ERR_PTR(-EBUSY);
+ goto exit_unlock;
+ }
+
+ rcu_assign_pointer(app->reprs[type], reprs);
+
+exit_unlock:
+ return old;
+}
+
+struct nfp_app *nfp_app_alloc(struct nfp_pf *pf, enum nfp_app_id id)
+{
+ struct nfp_app *app;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(apps); i++)
+ if (apps[i]->id == id)
+ break;
+ if (i == ARRAY_SIZE(apps)) {
+ nfp_err(pf->cpp, "failed to find app with ID 0x%02hhx\n", id);
+ return ERR_PTR(-EINVAL);
+ }
+
+ if (WARN_ON(!apps[i]->name || !apps[i]->vnic_init))
+ return ERR_PTR(-EINVAL);
+
+ app = kzalloc(sizeof(*app), GFP_KERNEL);
+ if (!app)
+ return ERR_PTR(-ENOMEM);
+
+ app->pf = pf;
+ app->cpp = pf->cpp;
+ app->pdev = pf->pdev;
+ app->type = apps[i];
+
+ return app;
+}
+
+void nfp_app_free(struct nfp_app *app)
+{
+ kfree(app);
+}
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.h b/drivers/net/ethernet/netronome/nfp/nfp_app.h
new file mode 100644
index 000000000000..5d714e10d9a9
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nfp_app.h
@@ -0,0 +1,314 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _NFP_APP_H
+#define _NFP_APP_H 1
+
+#include <net/devlink.h>
+
+#include "nfp_net_repr.h"
+
+struct bpf_prog;
+struct net_device;
+struct pci_dev;
+struct sk_buff;
+struct tc_to_netdev;
+struct sk_buff;
+struct nfp_app;
+struct nfp_cpp;
+struct nfp_pf;
+struct nfp_repr;
+struct nfp_net;
+
+enum nfp_app_id {
+ NFP_APP_CORE_NIC = 0x1,
+ NFP_APP_BPF_NIC = 0x2,
+ NFP_APP_FLOWER_NIC = 0x3,
+};
+
+extern const struct nfp_app_type app_nic;
+extern const struct nfp_app_type app_bpf;
+extern const struct nfp_app_type app_flower;
+
+/**
+ * struct nfp_app_type - application definition
+ * @id: application ID
+ * @name: application name
+ * @ctrl_has_meta: control messages have prepend of type:5/port:CTRL
+ *
+ * Callbacks
+ * @init: perform basic app checks and init
+ * @clean: clean app state
+ * @extra_cap: extra capabilities string
+ * @vnic_init: init vNICs (assign port types, etc.)
+ * @vnic_clean: clean up app's vNIC state
+ * @repr_open: representor netdev open callback
+ * @repr_stop: representor netdev stop callback
+ * @start: start application logic
+ * @stop: stop application logic
+ * @ctrl_msg_rx: control message handler
+ * @setup_tc: setup TC ndo
+ * @tc_busy: TC HW offload busy (rules loaded)
+ * @xdp_offload: offload an XDP program
+ * @eswitch_mode_get: get SR-IOV eswitch mode
+ * @sriov_enable: app-specific sriov initialisation
+ * @sriov_disable: app-specific sriov clean-up
+ * @repr_get: get representor netdev
+ */
+struct nfp_app_type {
+ enum nfp_app_id id;
+ const char *name;
+
+ bool ctrl_has_meta;
+
+ int (*init)(struct nfp_app *app);
+ void (*clean)(struct nfp_app *app);
+
+ const char *(*extra_cap)(struct nfp_app *app, struct nfp_net *nn);
+
+ int (*vnic_init)(struct nfp_app *app, struct nfp_net *nn,
+ unsigned int id);
+ void (*vnic_clean)(struct nfp_app *app, struct nfp_net *nn);
+
+ int (*repr_open)(struct nfp_app *app, struct nfp_repr *repr);
+ int (*repr_stop)(struct nfp_app *app, struct nfp_repr *repr);
+
+ int (*start)(struct nfp_app *app);
+ void (*stop)(struct nfp_app *app);
+
+ void (*ctrl_msg_rx)(struct nfp_app *app, struct sk_buff *skb);
+
+ int (*setup_tc)(struct nfp_app *app, struct net_device *netdev,
+ u32 handle, __be16 proto, struct tc_to_netdev *tc);
+ bool (*tc_busy)(struct nfp_app *app, struct nfp_net *nn);
+ int (*xdp_offload)(struct nfp_app *app, struct nfp_net *nn,
+ struct bpf_prog *prog);
+
+ int (*sriov_enable)(struct nfp_app *app, int num_vfs);
+ void (*sriov_disable)(struct nfp_app *app);
+
+ enum devlink_eswitch_mode (*eswitch_mode_get)(struct nfp_app *app);
+ struct net_device *(*repr_get)(struct nfp_app *app, u32 id);
+};
+
+/**
+ * struct nfp_app - NFP application container
+ * @pdev: backpointer to PCI device
+ * @pf: backpointer to NFP PF structure
+ * @cpp: pointer to the CPP handle
+ * @ctrl: pointer to ctrl vNIC struct
+ * @reprs: array of pointers to representors
+ * @type: pointer to const application ops and info
+ * @priv: app-specific priv data
+ */
+struct nfp_app {
+ struct pci_dev *pdev;
+ struct nfp_pf *pf;
+ struct nfp_cpp *cpp;
+
+ struct nfp_net *ctrl;
+ struct nfp_reprs __rcu *reprs[NFP_REPR_TYPE_MAX + 1];
+
+ const struct nfp_app_type *type;
+ void *priv;
+};
+
+bool nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb);
+
+static inline int nfp_app_init(struct nfp_app *app)
+{
+ if (!app->type->init)
+ return 0;
+ return app->type->init(app);
+}
+
+static inline void nfp_app_clean(struct nfp_app *app)
+{
+ if (app->type->clean)
+ app->type->clean(app);
+}
+
+static inline int nfp_app_vnic_init(struct nfp_app *app, struct nfp_net *nn,
+ unsigned int id)
+{
+ return app->type->vnic_init(app, nn, id);
+}
+
+static inline void nfp_app_vnic_clean(struct nfp_app *app, struct nfp_net *nn)
+{
+ if (app->type->vnic_clean)
+ app->type->vnic_clean(app, nn);
+}
+
+static inline int nfp_app_repr_open(struct nfp_app *app, struct nfp_repr *repr)
+{
+ if (!app->type->repr_open)
+ return -EINVAL;
+ return app->type->repr_open(app, repr);
+}
+
+static inline int nfp_app_repr_stop(struct nfp_app *app, struct nfp_repr *repr)
+{
+ if (!app->type->repr_stop)
+ return -EINVAL;
+ return app->type->repr_stop(app, repr);
+}
+
+static inline int nfp_app_start(struct nfp_app *app, struct nfp_net *ctrl)
+{
+ app->ctrl = ctrl;
+ if (!app->type->start)
+ return 0;
+ return app->type->start(app);
+}
+
+static inline void nfp_app_stop(struct nfp_app *app)
+{
+ if (!app->type->stop)
+ return;
+ app->type->stop(app);
+}
+
+static inline const char *nfp_app_name(struct nfp_app *app)
+{
+ if (!app)
+ return "";
+ return app->type->name;
+}
+
+static inline bool nfp_app_needs_ctrl_vnic(struct nfp_app *app)
+{
+ return app && app->type->ctrl_msg_rx;
+}
+
+static inline bool nfp_app_ctrl_has_meta(struct nfp_app *app)
+{
+ return app->type->ctrl_has_meta;
+}
+
+static inline const char *nfp_app_extra_cap(struct nfp_app *app,
+ struct nfp_net *nn)
+{
+ if (!app || !app->type->extra_cap)
+ return "";
+ return app->type->extra_cap(app, nn);
+}
+
+static inline bool nfp_app_has_tc(struct nfp_app *app)
+{
+ return app && app->type->setup_tc;
+}
+
+static inline bool nfp_app_tc_busy(struct nfp_app *app, struct nfp_net *nn)
+{
+ if (!app || !app->type->tc_busy)
+ return false;
+ return app->type->tc_busy(app, nn);
+}
+
+static inline int nfp_app_setup_tc(struct nfp_app *app,
+ struct net_device *netdev,
+ u32 handle, __be16 proto,
+ struct tc_to_netdev *tc)
+{
+ if (!app || !app->type->setup_tc)
+ return -EOPNOTSUPP;
+ return app->type->setup_tc(app, netdev, handle, proto, tc);
+}
+
+static inline int nfp_app_xdp_offload(struct nfp_app *app, struct nfp_net *nn,
+ struct bpf_prog *prog)
+{
+ if (!app || !app->type->xdp_offload)
+ return -EOPNOTSUPP;
+ return app->type->xdp_offload(app, nn, prog);
+}
+
+static inline bool nfp_app_ctrl_tx(struct nfp_app *app, struct sk_buff *skb)
+{
+ return nfp_ctrl_tx(app->ctrl, skb);
+}
+
+static inline void nfp_app_ctrl_rx(struct nfp_app *app, struct sk_buff *skb)
+{
+ app->type->ctrl_msg_rx(app, skb);
+}
+
+static inline int nfp_app_eswitch_mode_get(struct nfp_app *app, u16 *mode)
+{
+ if (!app->type->eswitch_mode_get)
+ return -EOPNOTSUPP;
+
+ *mode = app->type->eswitch_mode_get(app);
+
+ return 0;
+}
+
+static inline int nfp_app_sriov_enable(struct nfp_app *app, int num_vfs)
+{
+ if (!app || !app->type->sriov_enable)
+ return -EOPNOTSUPP;
+ return app->type->sriov_enable(app, num_vfs);
+}
+
+static inline void nfp_app_sriov_disable(struct nfp_app *app)
+{
+ if (app && app->type->sriov_disable)
+ app->type->sriov_disable(app);
+}
+
+static inline struct net_device *nfp_app_repr_get(struct nfp_app *app, u32 id)
+{
+ if (unlikely(!app || !app->type->repr_get))
+ return NULL;
+
+ return app->type->repr_get(app, id);
+}
+
+struct nfp_reprs *
+nfp_app_reprs_set(struct nfp_app *app, enum nfp_repr_type type,
+ struct nfp_reprs *reprs);
+
+const char *nfp_app_mip_name(struct nfp_app *app);
+struct sk_buff *
+nfp_app_ctrl_msg_alloc(struct nfp_app *app, unsigned int size, gfp_t priority);
+
+struct nfp_app *nfp_app_alloc(struct nfp_pf *pf, enum nfp_app_id id);
+void nfp_app_free(struct nfp_app *app);
+
+/* Callbacks shared between apps */
+
+int nfp_app_nic_vnic_init(struct nfp_app *app, struct nfp_net *nn,
+ unsigned int id);
+
+#endif
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app_nic.c b/drivers/net/ethernet/netronome/nfp/nfp_app_nic.c
new file mode 100644
index 000000000000..4e37c81f9eaf
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nfp_app_nic.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "nfpcore/nfp_cpp.h"
+#include "nfpcore/nfp_nsp.h"
+#include "nfp_app.h"
+#include "nfp_main.h"
+#include "nfp_net.h"
+#include "nfp_port.h"
+
+static int
+nfp_app_nic_vnic_init_phy_port(struct nfp_pf *pf, struct nfp_app *app,
+ struct nfp_net *nn, unsigned int id)
+{
+ int err;
+
+ if (!pf->eth_tbl)
+ return 0;
+
+ nn->port = nfp_port_alloc(app, NFP_PORT_PHYS_PORT, nn->dp.netdev);
+ if (IS_ERR(nn->port))
+ return PTR_ERR(nn->port);
+
+ err = nfp_port_init_phy_port(pf, app, nn->port, id);
+ if (err) {
+ nfp_port_free(nn->port);
+ return err;
+ }
+
+ return nn->port->type == NFP_PORT_INVALID;
+}
+
+int nfp_app_nic_vnic_init(struct nfp_app *app, struct nfp_net *nn,
+ unsigned int id)
+{
+ int err;
+
+ err = nfp_app_nic_vnic_init_phy_port(app->pf, app, nn, id);
+ if (err)
+ return err < 0 ? err : 0;
+
+ nfp_net_get_mac_addr(app->pf, nn->port);
+
+ return 0;
+}
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_asm.h b/drivers/net/ethernet/netronome/nfp/nfp_asm.h
index 22484b6fd3e8..d2b535739d2b 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_asm.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_asm.h
@@ -34,7 +34,7 @@
#ifndef __NFP_ASM_H__
#define __NFP_ASM_H__ 1
-#include "nfp_bpf.h"
+#include <linux/types.h>
#define REG_NONE 0
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_devlink.c b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
new file mode 100644
index 000000000000..6c9f29c2e975
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/rtnetlink.h>
+#include <net/devlink.h>
+
+#include "nfpcore/nfp_nsp.h"
+#include "nfp_app.h"
+#include "nfp_main.h"
+#include "nfp_port.h"
+
+static int
+nfp_devlink_fill_eth_port(struct nfp_port *port,
+ struct nfp_eth_table_port *copy)
+{
+ struct nfp_eth_table_port *eth_port;
+
+ eth_port = __nfp_port_get_eth_port(port);
+ if (!eth_port)
+ return -EINVAL;
+
+ memcpy(copy, eth_port, sizeof(*eth_port));
+
+ return 0;
+}
+
+static int
+nfp_devlink_fill_eth_port_from_id(struct nfp_pf *pf, unsigned int port_index,
+ struct nfp_eth_table_port *copy)
+{
+ struct nfp_port *port;
+
+ port = nfp_port_from_id(pf, NFP_PORT_PHYS_PORT, port_index);
+
+ return nfp_devlink_fill_eth_port(port, copy);
+}
+
+static int
+nfp_devlink_set_lanes(struct nfp_pf *pf, unsigned int idx, unsigned int lanes)
+{
+ struct nfp_nsp *nsp;
+ int ret;
+
+ nsp = nfp_eth_config_start(pf->cpp, idx);
+ if (IS_ERR(nsp))
+ return PTR_ERR(nsp);
+
+ ret = __nfp_eth_set_split(nsp, lanes);
+ if (ret) {
+ nfp_eth_config_cleanup_end(nsp);
+ return ret;
+ }
+
+ ret = nfp_eth_config_commit_end(nsp);
+ if (ret < 0)
+ return ret;
+ if (ret) /* no change */
+ return 0;
+
+ return nfp_net_refresh_port_table_sync(pf);
+}
+
+static int
+nfp_devlink_port_split(struct devlink *devlink, unsigned int port_index,
+ unsigned int count)
+{
+ struct nfp_pf *pf = devlink_priv(devlink);
+ struct nfp_eth_table_port eth_port;
+ int ret;
+
+ if (count < 2)
+ return -EINVAL;
+
+ mutex_lock(&pf->lock);
+
+ rtnl_lock();
+ ret = nfp_devlink_fill_eth_port_from_id(pf, port_index, &eth_port);
+ rtnl_unlock();
+ if (ret)
+ goto out;
+
+ if (eth_port.is_split || eth_port.port_lanes % count) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ret = nfp_devlink_set_lanes(pf, eth_port.index,
+ eth_port.port_lanes / count);
+out:
+ mutex_unlock(&pf->lock);
+
+ return ret;
+}
+
+static int
+nfp_devlink_port_unsplit(struct devlink *devlink, unsigned int port_index)
+{
+ struct nfp_pf *pf = devlink_priv(devlink);
+ struct nfp_eth_table_port eth_port;
+ int ret;
+
+ mutex_lock(&pf->lock);
+
+ rtnl_lock();
+ ret = nfp_devlink_fill_eth_port_from_id(pf, port_index, &eth_port);
+ rtnl_unlock();
+ if (ret)
+ goto out;
+
+ if (!eth_port.is_split) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ret = nfp_devlink_set_lanes(pf, eth_port.index, eth_port.port_lanes);
+out:
+ mutex_unlock(&pf->lock);
+
+ return ret;
+}
+
+static int nfp_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode)
+{
+ struct nfp_pf *pf = devlink_priv(devlink);
+ int ret;
+
+ mutex_lock(&pf->lock);
+ if (!pf->app) {
+ ret = -EBUSY;
+ goto out;
+ }
+ ret = nfp_app_eswitch_mode_get(pf->app, mode);
+out:
+ mutex_unlock(&pf->lock);
+
+ return ret;
+}
+
+const struct devlink_ops nfp_devlink_ops = {
+ .port_split = nfp_devlink_port_split,
+ .port_unsplit = nfp_devlink_port_unsplit,
+ .eswitch_mode_get = nfp_devlink_eswitch_mode_get,
+};
+
+int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port)
+{
+ struct nfp_eth_table_port eth_port;
+ struct devlink *devlink;
+ int ret;
+
+ rtnl_lock();
+ ret = nfp_devlink_fill_eth_port(port, &eth_port);
+ rtnl_unlock();
+ if (ret)
+ return ret;
+
+ devlink_port_type_eth_set(&port->dl_port, port->netdev);
+ if (eth_port.is_split)
+ devlink_port_split_set(&port->dl_port, eth_port.label_port);
+
+ devlink = priv_to_devlink(app->pf);
+
+ return devlink_port_register(devlink, &port->dl_port, port->eth_id);
+}
+
+void nfp_devlink_port_unregister(struct nfp_port *port)
+{
+ devlink_port_unregister(&port->dl_port);
+}
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_hwmon.c b/drivers/net/ethernet/netronome/nfp/nfp_hwmon.c
new file mode 100644
index 000000000000..f0dcf45aeec1
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nfp_hwmon.c
@@ -0,0 +1,192 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+#include <linux/hwmon.h>
+
+#include "nfpcore/nfp_cpp.h"
+#include "nfpcore/nfp_nsp.h"
+#include "nfp_main.h"
+
+#define NFP_TEMP_MAX (95 * 1000)
+#define NFP_TEMP_CRIT (105 * 1000)
+
+#define NFP_POWER_MAX (25 * 1000 * 1000)
+
+static int nfp_hwmon_sensor_id(enum hwmon_sensor_types type, int channel)
+{
+ if (type == hwmon_temp)
+ return NFP_SENSOR_CHIP_TEMPERATURE;
+ if (type == hwmon_power)
+ return NFP_SENSOR_ASSEMBLY_POWER + channel;
+ return -EINVAL;
+}
+
+static int
+nfp_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+ int channel, long *val)
+{
+ static const struct {
+ enum hwmon_sensor_types type;
+ u32 attr;
+ long val;
+ } const_vals[] = {
+ { hwmon_temp, hwmon_temp_max, NFP_TEMP_MAX },
+ { hwmon_temp, hwmon_temp_crit, NFP_TEMP_CRIT },
+ { hwmon_power, hwmon_power_max, NFP_POWER_MAX },
+ };
+ struct nfp_pf *pf = dev_get_drvdata(dev);
+ enum nfp_nsp_sensor_id id;
+ int err, i;
+
+ for (i = 0; i < ARRAY_SIZE(const_vals); i++)
+ if (const_vals[i].type == type && const_vals[i].attr == attr) {
+ *val = const_vals[i].val;
+ return 0;
+ }
+
+ err = nfp_hwmon_sensor_id(type, channel);
+ if (err < 0)
+ return err;
+ id = err;
+
+ if (!(pf->nspi->sensor_mask & BIT(id)))
+ return -EOPNOTSUPP;
+
+ if (type == hwmon_temp && attr == hwmon_temp_input)
+ return nfp_hwmon_read_sensor(pf->cpp, id, val);
+ if (type == hwmon_power && attr == hwmon_power_input)
+ return nfp_hwmon_read_sensor(pf->cpp, id, val);
+
+ return -EINVAL;
+}
+
+static umode_t
+nfp_hwmon_is_visible(const void *data, enum hwmon_sensor_types type, u32 attr,
+ int channel)
+{
+ if (type == hwmon_temp) {
+ switch (attr) {
+ case hwmon_temp_input:
+ case hwmon_temp_crit:
+ case hwmon_temp_max:
+ return 0444;
+ }
+ } else if (type == hwmon_power) {
+ switch (attr) {
+ case hwmon_power_input:
+ case hwmon_power_max:
+ return 0444;
+ }
+ }
+ return 0;
+}
+
+static u32 nfp_chip_config[] = {
+ HWMON_C_REGISTER_TZ,
+ 0
+};
+
+static const struct hwmon_channel_info nfp_chip = {
+ .type = hwmon_chip,
+ .config = nfp_chip_config,
+};
+
+static u32 nfp_temp_config[] = {
+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT,
+ 0
+};
+
+static const struct hwmon_channel_info nfp_temp = {
+ .type = hwmon_temp,
+ .config = nfp_temp_config,
+};
+
+static u32 nfp_power_config[] = {
+ HWMON_P_INPUT | HWMON_P_MAX,
+ HWMON_P_INPUT,
+ HWMON_P_INPUT,
+ 0
+};
+
+static const struct hwmon_channel_info nfp_power = {
+ .type = hwmon_power,
+ .config = nfp_power_config,
+};
+
+static const struct hwmon_channel_info *nfp_hwmon_info[] = {
+ &nfp_chip,
+ &nfp_temp,
+ &nfp_power,
+ NULL
+};
+
+static const struct hwmon_ops nfp_hwmon_ops = {
+ .is_visible = nfp_hwmon_is_visible,
+ .read = nfp_hwmon_read,
+};
+
+static const struct hwmon_chip_info nfp_chip_info = {
+ .ops = &nfp_hwmon_ops,
+ .info = nfp_hwmon_info,
+};
+
+int nfp_hwmon_register(struct nfp_pf *pf)
+{
+ if (!IS_REACHABLE(CONFIG_HWMON))
+ return 0;
+
+ if (!pf->nspi) {
+ nfp_warn(pf->cpp, "not registering HWMON (no NSP info)\n");
+ return 0;
+ }
+ if (!pf->nspi->sensor_mask) {
+ nfp_info(pf->cpp,
+ "not registering HWMON (NSP doesn't report sensors)\n");
+ return 0;
+ }
+
+ pf->hwmon_dev = hwmon_device_register_with_info(&pf->pdev->dev, "nfp",
+ pf, &nfp_chip_info,
+ NULL);
+ return PTR_ERR_OR_ZERO(pf->hwmon_dev);
+}
+
+void nfp_hwmon_unregister(struct nfp_pf *pf)
+{
+ if (!IS_REACHABLE(CONFIG_HWMON) || !pf->hwmon_dev)
+ return;
+
+ hwmon_device_unregister(pf->hwmon_dev);
+}
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_main.c b/drivers/net/ethernet/netronome/nfp/nfp_main.c
index dde35dae35c5..d67969d3e484 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_main.c
@@ -41,9 +41,11 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/mutex.h>
#include <linux/pci.h>
#include <linux/firmware.h>
#include <linux/vermagic.h>
+#include <net/devlink.h>
#include "nfpcore/nfp.h"
#include "nfpcore/nfp_cpp.h"
@@ -52,6 +54,7 @@
#include "nfpcore/nfp6000_pcie.h"
+#include "nfp_app.h"
#include "nfp_main.h"
#include "nfp_net.h"
@@ -71,20 +74,22 @@ static const struct pci_device_id nfp_pci_device_ids[] = {
};
MODULE_DEVICE_TABLE(pci, nfp_pci_device_ids);
-static void nfp_pcie_sriov_read_nfd_limit(struct nfp_pf *pf)
+static int nfp_pcie_sriov_read_nfd_limit(struct nfp_pf *pf)
{
-#ifdef CONFIG_PCI_IOV
int err;
- pf->limit_vfs = nfp_rtsym_read_le(pf->cpp, "nfd_vf_cfg_max_vfs", &err);
+ pf->limit_vfs = nfp_rtsym_read_le(pf->rtbl, "nfd_vf_cfg_max_vfs", &err);
if (!err)
- return;
+ return pci_sriov_set_totalvfs(pf->pdev, pf->limit_vfs);
pf->limit_vfs = ~0;
+ pci_sriov_set_totalvfs(pf->pdev, 0); /* 0 is unset */
/* Allow any setting for backwards compatibility if symbol not found */
- if (err != -ENOENT)
- nfp_warn(pf->cpp, "Warning: VF limit read failed: %d\n", err);
-#endif
+ if (err == -ENOENT)
+ return 0;
+
+ nfp_warn(pf->cpp, "Warning: VF limit read failed: %d\n", err);
+ return err;
}
static int nfp_pcie_sriov_enable(struct pci_dev *pdev, int num_vfs)
@@ -93,23 +98,41 @@ static int nfp_pcie_sriov_enable(struct pci_dev *pdev, int num_vfs)
struct nfp_pf *pf = pci_get_drvdata(pdev);
int err;
+ mutex_lock(&pf->lock);
+
if (num_vfs > pf->limit_vfs) {
nfp_info(pf->cpp, "Firmware limits number of VFs to %u\n",
pf->limit_vfs);
- return -EINVAL;
+ err = -EINVAL;
+ goto err_unlock;
}
err = pci_enable_sriov(pdev, num_vfs);
if (err) {
- dev_warn(&pdev->dev, "Failed to enable PCI sriov: %d\n", err);
- return err;
+ dev_warn(&pdev->dev, "Failed to enable PCI SR-IOV: %d\n", err);
+ goto err_unlock;
+ }
+
+ err = nfp_app_sriov_enable(pf->app, num_vfs);
+ if (err) {
+ dev_warn(&pdev->dev,
+ "App specific PCI SR-IOV configuration failed: %d\n",
+ err);
+ goto err_sriov_disable;
}
pf->num_vfs = num_vfs;
dev_dbg(&pdev->dev, "Created %d VFs.\n", pf->num_vfs);
+ mutex_unlock(&pf->lock);
return num_vfs;
+
+err_sriov_disable:
+ pci_disable_sriov(pdev);
+err_unlock:
+ mutex_unlock(&pf->lock);
+ return err;
#endif
return 0;
}
@@ -119,19 +142,26 @@ static int nfp_pcie_sriov_disable(struct pci_dev *pdev)
#ifdef CONFIG_PCI_IOV
struct nfp_pf *pf = pci_get_drvdata(pdev);
+ mutex_lock(&pf->lock);
+
/* If the VFs are assigned we cannot shut down SR-IOV without
* causing issues, so just leave the hardware available but
* disabled
*/
if (pci_vfs_assigned(pdev)) {
dev_warn(&pdev->dev, "Disabling while VFs assigned - VFs will not be deallocated\n");
+ mutex_unlock(&pf->lock);
return -EPERM;
}
+ nfp_app_sriov_disable(pf->app);
+
pf->num_vfs = 0;
pci_disable_sriov(pdev);
dev_dbg(&pdev->dev, "Removed VFs.\n");
+
+ mutex_unlock(&pf->lock);
#endif
return 0;
}
@@ -166,7 +196,7 @@ nfp_net_fw_find(struct pci_dev *pdev, struct nfp_pf *pf)
return NULL;
}
- fw_model = nfp_hwinfo_lookup(pf->cpp, "assembly.partno");
+ fw_model = nfp_hwinfo_lookup(pf->hwinfo, "assembly.partno");
if (!fw_model) {
dev_err(&pdev->dev, "Error: can't read part number\n");
return NULL;
@@ -253,7 +283,6 @@ exit_release_fw:
static int nfp_nsp_init(struct pci_dev *pdev, struct nfp_pf *pf)
{
- struct nfp_nsp_identify *nspi;
struct nfp_nsp *nsp;
int err;
@@ -270,14 +299,13 @@ static int nfp_nsp_init(struct pci_dev *pdev, struct nfp_pf *pf)
pf->eth_tbl = __nfp_eth_read_ports(pf->cpp, nsp);
- nspi = __nfp_nsp_identify(nsp);
- if (nspi) {
- dev_info(&pdev->dev, "BSP: %s\n", nspi->version);
- kfree(nspi);
- }
+ pf->nspi = __nfp_nsp_identify(nsp);
+ if (pf->nspi)
+ dev_info(&pdev->dev, "BSP: %s\n", pf->nspi->version);
err = nfp_fw_load(pdev, pf, nsp);
if (err < 0) {
+ kfree(pf->nspi);
kfree(pf->eth_tbl);
dev_err(&pdev->dev, "Failed to load FW\n");
goto exit_close_nsp;
@@ -315,6 +343,7 @@ static void nfp_fw_unload(struct nfp_pf *pf)
static int nfp_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *pci_id)
{
+ struct devlink *devlink;
struct nfp_pf *pf;
int err;
@@ -335,15 +364,24 @@ static int nfp_pci_probe(struct pci_dev *pdev,
goto err_pci_disable;
}
- pf = kzalloc(sizeof(*pf), GFP_KERNEL);
- if (!pf) {
+ devlink = devlink_alloc(&nfp_devlink_ops, sizeof(*pf));
+ if (!devlink) {
err = -ENOMEM;
goto err_rel_regions;
}
+ pf = devlink_priv(devlink);
+ INIT_LIST_HEAD(&pf->vnics);
INIT_LIST_HEAD(&pf->ports);
+ mutex_init(&pf->lock);
pci_set_drvdata(pdev, pf);
pf->pdev = pdev;
+ pf->wq = alloc_workqueue("nfp-%s", 0, 2, pci_name(pdev));
+ if (!pf->wq) {
+ err = -ENOMEM;
+ goto err_pci_priv_unset;
+ }
+
pf->cpp = nfp_cpp_from_nfp6000_pcie(pdev);
if (IS_ERR_OR_NULL(pf->cpp)) {
err = PTR_ERR(pf->cpp);
@@ -352,34 +390,72 @@ static int nfp_pci_probe(struct pci_dev *pdev,
goto err_disable_msix;
}
+ pf->hwinfo = nfp_hwinfo_read(pf->cpp);
+
dev_info(&pdev->dev, "Assembly: %s%s%s-%s CPLD: %s\n",
- nfp_hwinfo_lookup(pf->cpp, "assembly.vendor"),
- nfp_hwinfo_lookup(pf->cpp, "assembly.partno"),
- nfp_hwinfo_lookup(pf->cpp, "assembly.serial"),
- nfp_hwinfo_lookup(pf->cpp, "assembly.revision"),
- nfp_hwinfo_lookup(pf->cpp, "cpld.version"));
+ nfp_hwinfo_lookup(pf->hwinfo, "assembly.vendor"),
+ nfp_hwinfo_lookup(pf->hwinfo, "assembly.partno"),
+ nfp_hwinfo_lookup(pf->hwinfo, "assembly.serial"),
+ nfp_hwinfo_lookup(pf->hwinfo, "assembly.revision"),
+ nfp_hwinfo_lookup(pf->hwinfo, "cpld.version"));
+
+ err = devlink_register(devlink, &pdev->dev);
+ if (err)
+ goto err_hwinfo_free;
err = nfp_nsp_init(pdev, pf);
if (err)
- goto err_cpp_free;
+ goto err_devlink_unreg;
- nfp_pcie_sriov_read_nfd_limit(pf);
+ pf->mip = nfp_mip_open(pf->cpp);
+ pf->rtbl = __nfp_rtsym_table_read(pf->cpp, pf->mip);
- err = nfp_net_pci_probe(pf);
+ err = nfp_pcie_sriov_read_nfd_limit(pf);
if (err)
goto err_fw_unload;
+ pf->num_vfs = pci_num_vf(pdev);
+ if (pf->num_vfs > pf->limit_vfs) {
+ dev_err(&pdev->dev,
+ "Error: %d VFs already enabled, but loaded FW can only support %d\n",
+ pf->num_vfs, pf->limit_vfs);
+ goto err_fw_unload;
+ }
+
+ err = nfp_net_pci_probe(pf);
+ if (err)
+ goto err_sriov_unlimit;
+
+ err = nfp_hwmon_register(pf);
+ if (err) {
+ dev_err(&pdev->dev, "Failed to register hwmon info\n");
+ goto err_net_remove;
+ }
+
return 0;
+err_net_remove:
+ nfp_net_pci_remove(pf);
+err_sriov_unlimit:
+ pci_sriov_set_totalvfs(pf->pdev, 0);
err_fw_unload:
+ kfree(pf->rtbl);
+ nfp_mip_close(pf->mip);
if (pf->fw_loaded)
nfp_fw_unload(pf);
kfree(pf->eth_tbl);
-err_cpp_free:
+ kfree(pf->nspi);
+err_devlink_unreg:
+ devlink_unregister(devlink);
+err_hwinfo_free:
+ kfree(pf->hwinfo);
nfp_cpp_free(pf->cpp);
err_disable_msix:
+ destroy_workqueue(pf->wq);
+err_pci_priv_unset:
pci_set_drvdata(pdev, NULL);
- kfree(pf);
+ mutex_destroy(&pf->lock);
+ devlink_free(devlink);
err_rel_regions:
pci_release_regions(pdev);
err_pci_disable:
@@ -391,19 +467,33 @@ err_pci_disable:
static void nfp_pci_remove(struct pci_dev *pdev)
{
struct nfp_pf *pf = pci_get_drvdata(pdev);
+ struct devlink *devlink;
+
+ nfp_hwmon_unregister(pf);
+
+ devlink = priv_to_devlink(pf);
nfp_net_pci_remove(pf);
nfp_pcie_sriov_disable(pdev);
+ pci_sriov_set_totalvfs(pf->pdev, 0);
+
+ devlink_unregister(devlink);
+ kfree(pf->rtbl);
+ nfp_mip_close(pf->mip);
if (pf->fw_loaded)
nfp_fw_unload(pf);
+ destroy_workqueue(pf->wq);
pci_set_drvdata(pdev, NULL);
+ kfree(pf->hwinfo);
nfp_cpp_free(pf->cpp);
kfree(pf->eth_tbl);
- kfree(pf);
+ kfree(pf->nspi);
+ mutex_destroy(&pf->lock);
+ devlink_free(devlink);
pci_release_regions(pdev);
pci_disable_device(pdev);
}
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_main.h b/drivers/net/ethernet/netronome/nfp/nfp_main.h
index b57de047b002..6922410806db 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_main.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_main.h
@@ -47,39 +47,66 @@
#include <linux/workqueue.h>
struct dentry;
+struct device;
+struct devlink_ops;
struct pci_dev;
struct nfp_cpp;
struct nfp_cpp_area;
struct nfp_eth_table;
+struct nfp_hwinfo;
+struct nfp_mip;
+struct nfp_net;
+struct nfp_nsp_identify;
+struct nfp_port;
+struct nfp_rtsym_table;
/**
* struct nfp_pf - NFP PF-specific device structure
* @pdev: Backpointer to PCI device
* @cpp: Pointer to the CPP handle
- * @ctrl_area: Pointer to the CPP area for the control BAR
- * @tx_area: Pointer to the CPP area for the TX queues
- * @rx_area: Pointer to the CPP area for the FL/RX queues
- * @irq_entries: Array of MSI-X entries for all ports
+ * @app: Pointer to the APP handle
+ * @data_vnic_bar: Pointer to the CPP area for the data vNICs' BARs
+ * @ctrl_vnic_bar: Pointer to the CPP area for the ctrl vNIC's BAR
+ * @qc_area: Pointer to the CPP area for the queues
+ * @mac_stats_bar: Pointer to the CPP area for the MAC stats
+ * @mac_stats_mem: Pointer to mapped MAC stats area
+ * @vf_cfg_bar: Pointer to the CPP area for the VF configuration BAR
+ * @vf_cfg_mem: Pointer to mapped VF configuration area
+ * @irq_entries: Array of MSI-X entries for all vNICs
* @limit_vfs: Number of VFs supported by firmware (~0 for PCI limit)
* @num_vfs: Number of SR-IOV VFs enabled
* @fw_loaded: Is the firmware loaded?
+ * @ctrl_vnic: Pointer to the control vNIC if available
+ * @mip: MIP handle
+ * @rtbl: RTsym table
+ * @hwinfo: HWInfo table
* @eth_tbl: NSP ETH table
+ * @nspi: NSP identification info
+ * @hwmon_dev: pointer to hwmon device
* @ddir: Per-device debugfs directory
- * @num_ports: Number of adapter ports app firmware supports
- * @num_netdevs: Number of netdevs spawned
- * @ports: Linked list of port structures (struct nfp_net)
- * @port_lock: Protects @ports, @num_ports, @num_netdevs
+ * @max_data_vnics: Number of data vNICs app firmware supports
+ * @num_vnics: Number of vNICs spawned
+ * @vnics: Linked list of vNIC structures (struct nfp_net)
+ * @ports: Linked list of port structures (struct nfp_port)
+ * @wq: Workqueue for running works which need to grab @lock
* @port_refresh_work: Work entry for taking netdevs out
+ * @lock: Protects all fields which may change after probe
*/
struct nfp_pf {
struct pci_dev *pdev;
struct nfp_cpp *cpp;
- struct nfp_cpp_area *ctrl_area;
- struct nfp_cpp_area *tx_area;
- struct nfp_cpp_area *rx_area;
+ struct nfp_app *app;
+
+ struct nfp_cpp_area *data_vnic_bar;
+ struct nfp_cpp_area *ctrl_vnic_bar;
+ struct nfp_cpp_area *qc_area;
+ struct nfp_cpp_area *mac_stats_bar;
+ u8 __iomem *mac_stats_mem;
+ struct nfp_cpp_area *vf_cfg_bar;
+ u8 __iomem *vf_cfg_mem;
struct msix_entry *irq_entries;
@@ -88,21 +115,42 @@ struct nfp_pf {
bool fw_loaded;
+ struct nfp_net *ctrl_vnic;
+
+ const struct nfp_mip *mip;
+ struct nfp_rtsym_table *rtbl;
+ struct nfp_hwinfo *hwinfo;
struct nfp_eth_table *eth_tbl;
+ struct nfp_nsp_identify *nspi;
+
+ struct device *hwmon_dev;
struct dentry *ddir;
- unsigned int num_ports;
- unsigned int num_netdevs;
+ unsigned int max_data_vnics;
+ unsigned int num_vnics;
+ struct list_head vnics;
struct list_head ports;
+
+ struct workqueue_struct *wq;
struct work_struct port_refresh_work;
- struct mutex port_lock;
+
+ struct mutex lock;
};
extern struct pci_driver nfp_netvf_pci_driver;
+extern const struct devlink_ops nfp_devlink_ops;
+
int nfp_net_pci_probe(struct nfp_pf *pf);
void nfp_net_pci_remove(struct nfp_pf *pf);
+int nfp_hwmon_register(struct nfp_pf *pf);
+void nfp_hwmon_unregister(struct nfp_pf *pf);
+
+void nfp_net_get_mac_addr(struct nfp_pf *pf, struct nfp_port *port);
+
+bool nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb);
+
#endif /* NFP_MAIN_H */
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h
index fcf81b3be830..b1fa77bd708b 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h
@@ -50,15 +50,32 @@
#include "nfp_net_ctrl.h"
-#define nn_err(nn, fmt, args...) netdev_err((nn)->dp.netdev, fmt, ## args)
-#define nn_warn(nn, fmt, args...) netdev_warn((nn)->dp.netdev, fmt, ## args)
-#define nn_info(nn, fmt, args...) netdev_info((nn)->dp.netdev, fmt, ## args)
-#define nn_dbg(nn, fmt, args...) netdev_dbg((nn)->dp.netdev, fmt, ## args)
+#define nn_pr(nn, lvl, fmt, args...) \
+ ({ \
+ struct nfp_net *__nn = (nn); \
+ \
+ if (__nn->dp.netdev) \
+ netdev_printk(lvl, __nn->dp.netdev, fmt, ## args); \
+ else \
+ dev_printk(lvl, __nn->dp.dev, "ctrl: " fmt, ## args); \
+ })
+
+#define nn_err(nn, fmt, args...) nn_pr(nn, KERN_ERR, fmt, ## args)
+#define nn_warn(nn, fmt, args...) nn_pr(nn, KERN_WARNING, fmt, ## args)
+#define nn_info(nn, fmt, args...) nn_pr(nn, KERN_INFO, fmt, ## args)
+#define nn_dbg(nn, fmt, args...) nn_pr(nn, KERN_DEBUG, fmt, ## args)
+
#define nn_dp_warn(dp, fmt, args...) \
- do { \
- if (unlikely(net_ratelimit())) \
- netdev_warn((dp)->netdev, fmt, ## args); \
- } while (0)
+ ({ \
+ struct nfp_net_dp *__dp = (dp); \
+ \
+ if (unlikely(net_ratelimit())) { \
+ if (__dp->netdev) \
+ netdev_warn(__dp->netdev, fmt, ## args); \
+ else \
+ dev_warn(__dp->dev, fmt, ## args); \
+ } \
+ })
/* Max time to wait for NFP to respond on updates (in seconds) */
#define NFP_NET_POLL_TIMEOUT 5
@@ -84,7 +101,7 @@
#define NFP_NET_NON_Q_VECTORS 2
#define NFP_NET_IRQ_LSC_IDX 0
#define NFP_NET_IRQ_EXN_IDX 1
-#define NFP_NET_MIN_PORT_IRQS (NFP_NET_NON_Q_VECTORS + 1)
+#define NFP_NET_MIN_VNIC_IRQS (NFP_NET_NON_Q_VECTORS + 1)
/* Queue/Ring definitions */
#define NFP_NET_MAX_TX_RINGS 64 /* Max. # of Tx rings per device */
@@ -102,6 +119,7 @@
#define NFP_NET_RX_DESCS_DEFAULT 4096 /* Default # of Rx descs per ring */
#define NFP_NET_FL_BATCH 16 /* Add freelist in this Batch size */
+#define NFP_NET_XDP_MAX_COMPLETE 2048 /* XDP bufs to reclaim in NAPI poll */
/* Offload definitions */
#define NFP_NET_N_VXLAN_PORTS (NFP_NET_CFG_VXLAN_SZ / sizeof(__be16))
@@ -115,6 +133,10 @@ struct nfp_cpp;
struct nfp_eth_table_port;
struct nfp_net;
struct nfp_net_r_vector;
+struct nfp_port;
+
+/* Convenience macro for wrapping descriptor index on ring size */
+#define D_IDX(ring, idx) ((idx) & ((ring)->cnt - 1))
/* Convenience macro for writing dma address into RX/TX descriptors */
#define nfp_desc_set_dma_addr(desc, dma_addr) \
@@ -153,10 +175,15 @@ struct nfp_net_tx_desc {
__le32 dma_addr_lo; /* Low 32bit of host buf addr */
__le16 mss; /* MSS to be used for LSO */
- u8 l4_offset; /* LSO, where the L4 data starts */
+ u8 lso_hdrlen; /* LSO, TCP payload offset */
u8 flags; /* TX Flags, see @PCIE_DESC_TX_* */
-
- __le16 vlan; /* VLAN tag to add if indicated */
+ union {
+ struct {
+ u8 l3_offset; /* L3 header offset */
+ u8 l4_offset; /* L4 header offset */
+ };
+ __le16 vlan; /* VLAN tag to add if indicated */
+ };
__le16 data_len; /* Length of frame + meta data */
} __packed;
__le32 vals[4];
@@ -287,9 +314,12 @@ struct nfp_net_rx_desc {
#define NFP_NET_META_FIELD_MASK GENMASK(NFP_NET_META_FIELD_SIZE - 1, 0)
struct nfp_meta_parsed {
- u32 hash_type;
+ u8 hash_type;
+ u8 csum_type;
u32 hash;
u32 mark;
+ u32 portid;
+ __wsum csum;
};
struct nfp_net_rx_hash {
@@ -316,8 +346,6 @@ struct nfp_net_rx_buf {
* @idx: Ring index from Linux's perspective
* @fl_qcidx: Queue Controller Peripheral (QCP) queue index for the freelist
* @qcp_fl: Pointer to base of the QCP freelist queue
- * @wr_ptr_add: Accumulated number of buffers to add to QCP write pointer
- * (used for free list batching)
* @rxbufs: Array of transmitted FL/RX buffers
* @rxds: Virtual address of FL/RX ring in host memory
* @dma: DMA address of the FL/RX ring
@@ -331,7 +359,6 @@ struct nfp_net_rx_ring {
u32 rd_p;
u32 idx;
- u32 wr_ptr_add;
int fl_qcidx;
u8 __iomem *qcp_fl;
@@ -379,7 +406,14 @@ struct nfp_net_rx_ring {
*/
struct nfp_net_r_vector {
struct nfp_net *nfp_net;
- struct napi_struct napi;
+ union {
+ struct napi_struct napi;
+ struct {
+ struct tasklet_struct tasklet;
+ struct sk_buff_head queue;
+ struct spinlock lock;
+ };
+ };
struct nfp_net_tx_ring *tx_ring;
struct nfp_net_rx_ring *rx_ring;
@@ -508,11 +542,8 @@ struct nfp_net_dp {
* @rss_cfg: RSS configuration
* @rss_key: RSS secret key
* @rss_itbl: RSS indirection table
- * @rx_filter: Filter offload statistics - dropped packets/bytes
- * @rx_filter_prev: Filter offload statistics - values from previous update
- * @rx_filter_change: Jiffies when statistics last changed
- * @rx_filter_stats_timer: Timer for polling filter offload statistics
- * @rx_filter_lock: Lock protecting timer state changes (teardown)
+ * @xdp_flags: Flags with which XDP prog was loaded
+ * @xdp_prog: XDP prog (for ctrl path, both DRV and HW modes)
* @max_r_vecs: Number of allocated interrupt vectors for RX/TX
* @max_tx_rings: Maximum number of TX rings supported by the Firmware
* @max_rx_rings: Maximum number of RX rings supported by the Firmware
@@ -531,7 +562,6 @@ struct nfp_net_dp {
* @reconfig_sync_present: Some thread is performing synchronous reconfig
* @reconfig_timer: Timer for async reading of reconfig results
* @link_up: Is the link up?
- * @link_changed: Has link state changes since last port refresh?
* @link_status_lock: Protects @link_* and ensures atomicity with BAR reading
* @rx_coalesce_usecs: RX interrupt moderation usecs delay parameter
* @rx_coalesce_max_frames: RX interrupt moderation frame count parameter
@@ -544,10 +574,11 @@ struct nfp_net_dp {
* @rx_bar: Pointer to mapped FL/RX queues
* @debugfs_dir: Device directory in debugfs
* @ethtool_dump_flag: Ethtool dump flag
- * @port_list: Entry on device port list
+ * @vnic_list: Entry on device vNIC list
* @pdev: Backpointer to PCI device
- * @cpp: CPP device handle if available
- * @eth_port: Translated ETH Table port entry
+ * @app: APP handle if available
+ * @port: Pointer to nfp_port structure if vNIC is a port
+ * @app_priv: APP private data for this vNIC
*/
struct nfp_net {
struct nfp_net_dp dp;
@@ -562,10 +593,8 @@ struct nfp_net {
u8 rss_key[NFP_NET_CFG_RSS_KEY_SZ];
u8 rss_itbl[NFP_NET_CFG_RSS_ITBL_SZ];
- struct nfp_stat_pair rx_filter, rx_filter_prev;
- unsigned long rx_filter_change;
- struct timer_list rx_filter_stats_timer;
- spinlock_t rx_filter_lock;
+ u32 xdp_flags;
+ struct bpf_prog *xdp_prog;
unsigned int max_tx_rings;
unsigned int max_rx_rings;
@@ -589,7 +618,6 @@ struct nfp_net {
u32 me_freq_mhz;
bool link_up;
- bool link_changed;
spinlock_t link_status_lock;
spinlock_t reconfig_lock;
@@ -614,12 +642,14 @@ struct nfp_net {
struct dentry *debugfs_dir;
u32 ethtool_dump_flag;
- struct list_head port_list;
+ struct list_head vnic_list;
struct pci_dev *pdev;
- struct nfp_cpp *cpp;
+ struct nfp_app *app;
+
+ struct nfp_port *port;
- struct nfp_eth_table_port *eth_port;
+ void *app_priv;
};
/* Functions to read/write from/to a BAR
@@ -681,6 +711,7 @@ static inline void nn_pci_flush(struct nfp_net *nn)
* either add to a pointer or to read the pointer value.
*/
#define NFP_QCP_QUEUE_ADDR_SZ 0x800
+#define NFP_QCP_QUEUE_AREA_SZ 0x80000
#define NFP_QCP_QUEUE_OFF(_x) ((_x) * NFP_QCP_QUEUE_ADDR_SZ)
#define NFP_QCP_QUEUE_ADD_RPTR 0x0000
#define NFP_QCP_QUEUE_ADD_WPTR 0x0004
@@ -788,19 +819,47 @@ static inline u32 nfp_qcp_wr_ptr_read(u8 __iomem *q)
return _nfp_qcp_read(q, NFP_QCP_WRITE_PTR);
}
+static inline bool nfp_net_is_data_vnic(struct nfp_net *nn)
+{
+ WARN_ON_ONCE(!nn->dp.netdev && nn->port);
+ return !!nn->dp.netdev;
+}
+
+static inline bool nfp_net_running(struct nfp_net *nn)
+{
+ return nn->dp.ctrl & NFP_NET_CFG_CTRL_ENABLE;
+}
+
+static inline const char *nfp_net_name(struct nfp_net *nn)
+{
+ return nn->dp.netdev ? nn->dp.netdev->name : "ctrl";
+}
+
/* Globals */
extern const char nfp_driver_version[];
+extern const struct net_device_ops nfp_net_netdev_ops;
+
+static inline bool nfp_netdev_is_nfp_net(struct net_device *netdev)
+{
+ return netdev->netdev_ops == &nfp_net_netdev_ops;
+}
+
/* Prototypes */
void nfp_net_get_fw_version(struct nfp_net_fw_version *fw_ver,
void __iomem *ctrl_bar);
struct nfp_net *
-nfp_net_netdev_alloc(struct pci_dev *pdev,
- unsigned int max_tx_rings, unsigned int max_rx_rings);
-void nfp_net_netdev_free(struct nfp_net *nn);
-int nfp_net_netdev_init(struct net_device *netdev);
-void nfp_net_netdev_clean(struct net_device *netdev);
+nfp_net_alloc(struct pci_dev *pdev, bool needs_netdev,
+ unsigned int max_tx_rings, unsigned int max_rx_rings);
+void nfp_net_free(struct nfp_net *nn);
+
+int nfp_net_init(struct nfp_net *nn);
+void nfp_net_clean(struct nfp_net *nn);
+
+int nfp_ctrl_open(struct nfp_net *nn);
+void nfp_ctrl_close(struct nfp_net *nn);
+
void nfp_net_set_ethtool_ops(struct net_device *netdev);
void nfp_net_info(struct nfp_net *nn);
int nfp_net_reconfig(struct nfp_net *nn, u32 update);
@@ -821,15 +880,11 @@ struct nfp_net_dp *nfp_net_clone_dp(struct nfp_net *nn);
int nfp_net_ring_reconfig(struct nfp_net *nn, struct nfp_net_dp *new,
struct netlink_ext_ack *extack);
-bool nfp_net_link_changed_read_clear(struct nfp_net *nn);
-int nfp_net_refresh_eth_port(struct nfp_net *nn);
-void nfp_net_refresh_port_table(struct nfp_net *nn);
-
#ifdef CONFIG_NFP_DEBUG
void nfp_net_debugfs_create(void);
void nfp_net_debugfs_destroy(void);
struct dentry *nfp_net_debugfs_device_add(struct pci_dev *pdev);
-void nfp_net_debugfs_port_add(struct nfp_net *nn, struct dentry *ddir, int id);
+void nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir, int id);
void nfp_net_debugfs_dir_clean(struct dentry **dir);
#else
static inline void nfp_net_debugfs_create(void)
@@ -846,7 +901,7 @@ static inline struct dentry *nfp_net_debugfs_device_add(struct pci_dev *pdev)
}
static inline void
-nfp_net_debugfs_port_add(struct nfp_net *nn, struct dentry *ddir, int id)
+nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir, int id)
{
}
@@ -855,7 +910,4 @@ static inline void nfp_net_debugfs_dir_clean(struct dentry **dir)
}
#endif /* CONFIG_NFP_DEBUG */
-void nfp_net_filter_stats_timer(unsigned long data);
-int nfp_net_bpf_offload(struct nfp_net *nn, struct tc_cls_bpf_offload *cls_bpf);
-
#endif /* _NFP_NET_H_ */
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index 82bd6b0935f1..18750ff0ede6 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -61,15 +61,17 @@
#include <linux/log2.h>
#include <linux/if_vlan.h>
#include <linux/random.h>
-
+#include <linux/vmalloc.h>
#include <linux/ktime.h>
-#include <net/pkt_cls.h>
+#include <net/switchdev.h>
#include <net/vxlan.h>
#include "nfpcore/nfp_nsp.h"
+#include "nfp_app.h"
#include "nfp_net_ctrl.h"
#include "nfp_net.h"
+#include "nfp_port.h"
/**
* nfp_net_get_fw_version() - Read and parse the FW version
@@ -279,6 +281,30 @@ int nfp_net_reconfig(struct nfp_net *nn, u32 update)
return ret;
}
+/**
+ * nfp_net_reconfig_mbox() - Reconfigure the firmware via the mailbox
+ * @nn: NFP Net device to reconfigure
+ * @mbox_cmd: The value for the mailbox command
+ *
+ * Helper function for mailbox updates
+ *
+ * Return: Negative errno on error, 0 on success
+ */
+static int nfp_net_reconfig_mbox(struct nfp_net *nn, u32 mbox_cmd)
+{
+ int ret;
+
+ nn_writeq(nn, NFP_NET_CFG_MBOX_CMD, mbox_cmd);
+
+ ret = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_MBOX);
+ if (ret) {
+ nn_err(nn, "Mailbox update error\n");
+ return ret;
+ }
+
+ return -nn_readl(nn, NFP_NET_CFG_MBOX_RET);
+}
+
/* Interrupt configuration and handling
*/
@@ -391,17 +417,13 @@ static irqreturn_t nfp_net_irq_rxtx(int irq, void *data)
return IRQ_HANDLED;
}
-bool nfp_net_link_changed_read_clear(struct nfp_net *nn)
+static irqreturn_t nfp_ctrl_irq_rxtx(int irq, void *data)
{
- unsigned long flags;
- bool ret;
+ struct nfp_net_r_vector *r_vec = data;
- spin_lock_irqsave(&nn->link_status_lock, flags);
- ret = nn->link_changed;
- nn->link_changed = false;
- spin_unlock_irqrestore(&nn->link_status_lock, flags);
+ tasklet_schedule(&r_vec->tasklet);
- return ret;
+ return IRQ_HANDLED;
}
/**
@@ -423,7 +445,8 @@ static void nfp_net_read_link_status(struct nfp_net *nn)
goto out;
nn->link_up = link_up;
- nn->link_changed = true;
+ if (nn->port)
+ set_bit(NFP_PORT_CHANGED, &nn->port->flags);
if (nn->link_up) {
netif_carrier_on(nn->dp.netdev);
@@ -515,34 +538,6 @@ nfp_net_rx_ring_init(struct nfp_net_rx_ring *rx_ring,
}
/**
- * nfp_net_vecs_init() - Assign IRQs and setup rvecs.
- * @netdev: netdev structure
- */
-static void nfp_net_vecs_init(struct net_device *netdev)
-{
- struct nfp_net *nn = netdev_priv(netdev);
- struct nfp_net_r_vector *r_vec;
- int r;
-
- nn->lsc_handler = nfp_net_irq_lsc;
- nn->exn_handler = nfp_net_irq_exn;
-
- for (r = 0; r < nn->max_r_vecs; r++) {
- struct msix_entry *entry;
-
- entry = &nn->irq_entries[NFP_NET_NON_Q_VECTORS + r];
-
- r_vec = &nn->r_vecs[r];
- r_vec->nfp_net = nn;
- r_vec->handler = nfp_net_irq_rxtx;
- r_vec->irq_entry = entry->entry;
- r_vec->irq_vector = entry->vector;
-
- cpumask_set_cpu(r, &r_vec->affinity_mask);
- }
-}
-
-/**
* nfp_net_aux_irq_request() - Request an auxiliary interrupt (LSC or EXN)
* @nn: NFP Network structure
* @ctrl_offset: Control BAR offset where IRQ configuration should be written
@@ -562,7 +557,7 @@ nfp_net_aux_irq_request(struct nfp_net *nn, u32 ctrl_offset,
entry = &nn->irq_entries[vector_idx];
- snprintf(name, name_sz, format, netdev_name(nn->dp.netdev));
+ snprintf(name, name_sz, format, nfp_net_name(nn));
err = request_irq(entry->vector, handler, 0, name, nn);
if (err) {
nn_err(nn, "Failed to request IRQ %d (err=%d).\n",
@@ -667,17 +662,22 @@ static void nfp_net_tx_tso(struct nfp_net_r_vector *r_vec,
if (!skb_is_gso(skb))
return;
- if (!skb->encapsulation)
+ if (!skb->encapsulation) {
+ txd->l3_offset = skb_network_offset(skb);
+ txd->l4_offset = skb_transport_offset(skb);
hdrlen = skb_transport_offset(skb) + tcp_hdrlen(skb);
- else
+ } else {
+ txd->l3_offset = skb_inner_network_offset(skb);
+ txd->l4_offset = skb_inner_transport_offset(skb);
hdrlen = skb_inner_transport_header(skb) - skb->data +
inner_tcp_hdrlen(skb);
+ }
txbuf->pkt_cnt = skb_shinfo(skb)->gso_segs;
txbuf->real_len += hdrlen * (txbuf->pkt_cnt - 1);
mss = skb_shinfo(skb)->gso_size & PCIE_DESC_TX_MSS_MASK;
- txd->l4_offset = hdrlen;
+ txd->lso_hdrlen = hdrlen;
txd->mss = cpu_to_le16(mss);
txd->flags |= PCIE_DESC_TX_LSO;
@@ -756,6 +756,26 @@ static void nfp_net_tx_xmit_more_flush(struct nfp_net_tx_ring *tx_ring)
tx_ring->wr_ptr_add = 0;
}
+static int nfp_net_prep_port_id(struct sk_buff *skb)
+{
+ struct metadata_dst *md_dst = skb_metadata_dst(skb);
+ unsigned char *data;
+
+ if (likely(!md_dst))
+ return 0;
+ if (unlikely(md_dst->type != METADATA_HW_PORT_MUX))
+ return 0;
+
+ if (unlikely(skb_cow_head(skb, 8)))
+ return -ENOMEM;
+
+ data = skb_push(skb, 8);
+ put_unaligned_be32(NFP_NET_META_PORTID, data);
+ put_unaligned_be32(md_dst->u.port_info.port_id, data + 4);
+
+ return 8;
+}
+
/**
* nfp_net_tx() - Main transmit entry point
* @skb: SKB to transmit
@@ -768,6 +788,7 @@ static int nfp_net_tx(struct sk_buff *skb, struct net_device *netdev)
struct nfp_net *nn = netdev_priv(netdev);
const struct skb_frag_struct *frag;
struct nfp_net_tx_desc *txd, txdg;
+ int f, nr_frags, wr_idx, md_bytes;
struct nfp_net_tx_ring *tx_ring;
struct nfp_net_r_vector *r_vec;
struct nfp_net_tx_buf *txbuf;
@@ -775,8 +796,6 @@ static int nfp_net_tx(struct sk_buff *skb, struct net_device *netdev)
struct nfp_net_dp *dp;
dma_addr_t dma_addr;
unsigned int fsize;
- int f, nr_frags;
- int wr_idx;
u16 qidx;
dp = &nn->dp;
@@ -798,13 +817,20 @@ static int nfp_net_tx(struct sk_buff *skb, struct net_device *netdev)
return NETDEV_TX_BUSY;
}
+ md_bytes = nfp_net_prep_port_id(skb);
+ if (unlikely(md_bytes < 0)) {
+ nfp_net_tx_xmit_more_flush(tx_ring);
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+
/* Start with the head skbuf */
dma_addr = dma_map_single(dp->dev, skb->data, skb_headlen(skb),
DMA_TO_DEVICE);
if (dma_mapping_error(dp->dev, dma_addr))
goto err_free;
- wr_idx = tx_ring->wr_p & (tx_ring->cnt - 1);
+ wr_idx = D_IDX(tx_ring, tx_ring->wr_p);
/* Stash the soft descriptor of the head then initialize it */
txbuf = &tx_ring->txbufs[wr_idx];
@@ -816,19 +842,18 @@ static int nfp_net_tx(struct sk_buff *skb, struct net_device *netdev)
/* Build TX descriptor */
txd = &tx_ring->txds[wr_idx];
- txd->offset_eop = (nr_frags == 0) ? PCIE_DESC_TX_EOP : 0;
+ txd->offset_eop = (nr_frags ? 0 : PCIE_DESC_TX_EOP) | md_bytes;
txd->dma_len = cpu_to_le16(skb_headlen(skb));
nfp_desc_set_dma_addr(txd, dma_addr);
txd->data_len = cpu_to_le16(skb->len);
txd->flags = 0;
txd->mss = 0;
- txd->l4_offset = 0;
+ txd->lso_hdrlen = 0;
+ /* Do not reorder - tso may adjust pkt cnt, vlan may override fields */
nfp_net_tx_tso(r_vec, txbuf, txd, skb);
-
nfp_net_tx_csum(dp, r_vec, txbuf, txd, skb);
-
if (skb_vlan_tag_present(skb) && dp->ctrl & NFP_NET_CFG_CTRL_TXVLAN) {
txd->flags |= PCIE_DESC_TX_VLAN;
txd->vlan = cpu_to_le16(skb_vlan_tag_get(skb));
@@ -848,7 +873,7 @@ static int nfp_net_tx(struct sk_buff *skb, struct net_device *netdev)
if (dma_mapping_error(dp->dev, dma_addr))
goto err_unmap;
- wr_idx = (wr_idx + 1) & (tx_ring->cnt - 1);
+ wr_idx = D_IDX(tx_ring, wr_idx + 1);
tx_ring->txbufs[wr_idx].skb = skb;
tx_ring->txbufs[wr_idx].dma_addr = dma_addr;
tx_ring->txbufs[wr_idx].fidx = f;
@@ -857,7 +882,7 @@ static int nfp_net_tx(struct sk_buff *skb, struct net_device *netdev)
*txd = txdg;
txd->dma_len = cpu_to_le16(fsize);
nfp_desc_set_dma_addr(txd, dma_addr);
- txd->offset_eop =
+ txd->offset_eop |=
(f == nr_frags - 1) ? PCIE_DESC_TX_EOP : 0;
}
@@ -936,14 +961,10 @@ static void nfp_net_tx_complete(struct nfp_net_tx_ring *tx_ring)
if (qcp_rd_p == tx_ring->qcp_rd_p)
return;
- if (qcp_rd_p > tx_ring->qcp_rd_p)
- todo = qcp_rd_p - tx_ring->qcp_rd_p;
- else
- todo = qcp_rd_p + tx_ring->cnt - tx_ring->qcp_rd_p;
+ todo = D_IDX(tx_ring, qcp_rd_p - tx_ring->qcp_rd_p);
while (todo--) {
- idx = tx_ring->rd_p & (tx_ring->cnt - 1);
- tx_ring->rd_p++;
+ idx = D_IDX(tx_ring, tx_ring->rd_p++);
skb = tx_ring->txbufs[idx].skb;
if (!skb)
@@ -982,6 +1003,9 @@ static void nfp_net_tx_complete(struct nfp_net_tx_ring *tx_ring)
r_vec->tx_pkts += done_pkts;
u64_stats_update_end(&r_vec->tx_sync);
+ if (!dp->netdev)
+ return;
+
nd_q = netdev_get_tx_queue(dp->netdev, tx_ring->idx);
netdev_tx_completed_queue(nd_q, done_pkts, done_bytes);
if (nfp_net_tx_ring_should_wake(tx_ring)) {
@@ -997,45 +1021,45 @@ static void nfp_net_tx_complete(struct nfp_net_tx_ring *tx_ring)
tx_ring->rd_p, tx_ring->wr_p, tx_ring->cnt);
}
-static void nfp_net_xdp_complete(struct nfp_net_tx_ring *tx_ring)
+static bool nfp_net_xdp_complete(struct nfp_net_tx_ring *tx_ring)
{
struct nfp_net_r_vector *r_vec = tx_ring->r_vec;
u32 done_pkts = 0, done_bytes = 0;
+ bool done_all;
int idx, todo;
u32 qcp_rd_p;
- if (tx_ring->wr_p == tx_ring->rd_p)
- return;
-
/* Work out how many descriptors have been transmitted */
qcp_rd_p = nfp_qcp_rd_ptr_read(tx_ring->qcp_q);
if (qcp_rd_p == tx_ring->qcp_rd_p)
- return;
+ return true;
- if (qcp_rd_p > tx_ring->qcp_rd_p)
- todo = qcp_rd_p - tx_ring->qcp_rd_p;
- else
- todo = qcp_rd_p + tx_ring->cnt - tx_ring->qcp_rd_p;
+ todo = D_IDX(tx_ring, qcp_rd_p - tx_ring->qcp_rd_p);
+
+ done_all = todo <= NFP_NET_XDP_MAX_COMPLETE;
+ todo = min(todo, NFP_NET_XDP_MAX_COMPLETE);
+
+ tx_ring->qcp_rd_p = D_IDX(tx_ring, tx_ring->qcp_rd_p + todo);
done_pkts = todo;
while (todo--) {
- idx = tx_ring->rd_p & (tx_ring->cnt - 1);
+ idx = D_IDX(tx_ring, tx_ring->rd_p);
tx_ring->rd_p++;
done_bytes += tx_ring->txbufs[idx].real_len;
}
- tx_ring->qcp_rd_p = qcp_rd_p;
-
u64_stats_update_begin(&r_vec->tx_sync);
r_vec->tx_bytes += done_bytes;
r_vec->tx_pkts += done_pkts;
u64_stats_update_end(&r_vec->tx_sync);
WARN_ONCE(tx_ring->wr_p - tx_ring->rd_p > tx_ring->cnt,
- "TX ring corruption rd_p=%u wr_p=%u cnt=%u\n",
+ "XDP TX ring corruption rd_p=%u wr_p=%u cnt=%u\n",
tx_ring->rd_p, tx_ring->wr_p, tx_ring->cnt);
+
+ return done_all;
}
/**
@@ -1056,7 +1080,7 @@ nfp_net_tx_ring_reset(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring)
struct sk_buff *skb;
int idx, nr_frags;
- idx = tx_ring->rd_p & (tx_ring->cnt - 1);
+ idx = D_IDX(tx_ring, tx_ring->rd_p);
tx_buf = &tx_ring->txbufs[idx];
skb = tx_ring->txbufs[idx].skb;
@@ -1091,7 +1115,7 @@ nfp_net_tx_ring_reset(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring)
tx_ring->qcp_rd_p = 0;
tx_ring->wr_ptr_add = 0;
- if (tx_ring->is_xdp)
+ if (tx_ring->is_xdp || !dp->netdev)
return;
nd_q = netdev_get_tx_queue(dp->netdev, tx_ring->idx);
@@ -1209,7 +1233,7 @@ static void nfp_net_rx_give_one(const struct nfp_net_dp *dp,
{
unsigned int wr_idx;
- wr_idx = rx_ring->wr_p & (rx_ring->cnt - 1);
+ wr_idx = D_IDX(rx_ring, rx_ring->wr_p);
nfp_net_dma_sync_dev_rx(dp, dma_addr);
@@ -1224,14 +1248,12 @@ static void nfp_net_rx_give_one(const struct nfp_net_dp *dp,
dma_addr + dp->rx_dma_off);
rx_ring->wr_p++;
- rx_ring->wr_ptr_add++;
- if (rx_ring->wr_ptr_add >= NFP_NET_FL_BATCH) {
+ if (!(rx_ring->wr_p % NFP_NET_FL_BATCH)) {
/* Update write pointer of the freelist queue. Make
* sure all writes are flushed before telling the hardware.
*/
wmb();
- nfp_qcp_wr_ptr_add(rx_ring->qcp_fl, rx_ring->wr_ptr_add);
- rx_ring->wr_ptr_add = 0;
+ nfp_qcp_wr_ptr_add(rx_ring->qcp_fl, NFP_NET_FL_BATCH);
}
}
@@ -1247,7 +1269,7 @@ static void nfp_net_rx_ring_reset(struct nfp_net_rx_ring *rx_ring)
unsigned int wr_idx, last_idx;
/* Move the empty entry to the end of the list */
- wr_idx = rx_ring->wr_p & (rx_ring->cnt - 1);
+ wr_idx = D_IDX(rx_ring, rx_ring->wr_p);
last_idx = rx_ring->cnt - 1;
rx_ring->rxbufs[wr_idx].dma_addr = rx_ring->rxbufs[last_idx].dma_addr;
rx_ring->rxbufs[wr_idx].frag = rx_ring->rxbufs[last_idx].frag;
@@ -1257,7 +1279,6 @@ static void nfp_net_rx_ring_reset(struct nfp_net_rx_ring *rx_ring)
memset(rx_ring->rxds, 0, sizeof(*rx_ring->rxds) * rx_ring->cnt);
rx_ring->wr_p = 0;
rx_ring->rd_p = 0;
- rx_ring->wr_ptr_add = 0;
}
/**
@@ -1350,17 +1371,28 @@ static int nfp_net_rx_csum_has_errors(u16 flags)
* @dp: NFP Net data path struct
* @r_vec: per-ring structure
* @rxd: Pointer to RX descriptor
+ * @meta: Parsed metadata prepend
* @skb: Pointer to SKB
*/
static void nfp_net_rx_csum(struct nfp_net_dp *dp,
struct nfp_net_r_vector *r_vec,
- struct nfp_net_rx_desc *rxd, struct sk_buff *skb)
+ struct nfp_net_rx_desc *rxd,
+ struct nfp_meta_parsed *meta, struct sk_buff *skb)
{
skb_checksum_none_assert(skb);
if (!(dp->netdev->features & NETIF_F_RXCSUM))
return;
+ if (meta->csum_type) {
+ skb->ip_summed = meta->csum_type;
+ skb->csum = meta->csum;
+ u64_stats_update_begin(&r_vec->rx_sync);
+ r_vec->hw_csum_rx_ok++;
+ u64_stats_update_end(&r_vec->rx_sync);
+ return;
+ }
+
if (nfp_net_rx_csum_has_errors(le16_to_cpu(rxd->rxd.flags))) {
u64_stats_update_begin(&r_vec->rx_sync);
r_vec->hw_csum_rx_error++;
@@ -1445,6 +1477,16 @@ nfp_net_parse_meta(struct net_device *netdev, struct nfp_meta_parsed *meta,
meta->mark = get_unaligned_be32(data);
data += 4;
break;
+ case NFP_NET_META_PORTID:
+ meta->portid = get_unaligned_be32(data);
+ data += 4;
+ break;
+ case NFP_NET_META_CSUM:
+ meta->csum_type = CHECKSUM_COMPLETE;
+ meta->csum =
+ (__force __wsum)__get_unaligned_cpu32(data);
+ data += 4;
+ break;
default:
return NULL;
}
@@ -1479,18 +1521,26 @@ static bool
nfp_net_tx_xdp_buf(struct nfp_net_dp *dp, struct nfp_net_rx_ring *rx_ring,
struct nfp_net_tx_ring *tx_ring,
struct nfp_net_rx_buf *rxbuf, unsigned int dma_off,
- unsigned int pkt_len)
+ unsigned int pkt_len, bool *completed)
{
struct nfp_net_tx_buf *txbuf;
struct nfp_net_tx_desc *txd;
int wr_idx;
if (unlikely(nfp_net_tx_full(tx_ring, 1))) {
- nfp_net_rx_drop(dp, rx_ring->r_vec, rx_ring, rxbuf, NULL);
- return false;
+ if (!*completed) {
+ nfp_net_xdp_complete(tx_ring);
+ *completed = true;
+ }
+
+ if (unlikely(nfp_net_tx_full(tx_ring, 1))) {
+ nfp_net_rx_drop(dp, rx_ring->r_vec, rx_ring, rxbuf,
+ NULL);
+ return false;
+ }
}
- wr_idx = tx_ring->wr_p & (tx_ring->cnt - 1);
+ wr_idx = D_IDX(tx_ring, tx_ring->wr_p);
/* Stash the soft descriptor of the head then initialize it */
txbuf = &tx_ring->txbufs[wr_idx];
@@ -1515,7 +1565,7 @@ nfp_net_tx_xdp_buf(struct nfp_net_dp *dp, struct nfp_net_rx_ring *rx_ring,
txd->flags = 0;
txd->mss = 0;
- txd->l4_offset = 0;
+ txd->lso_hdrlen = 0;
tx_ring->wr_p++;
tx_ring->wr_ptr_add++;
@@ -1559,6 +1609,7 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
struct nfp_net_dp *dp = &r_vec->nfp_net->dp;
struct nfp_net_tx_ring *tx_ring;
struct bpf_prog *xdp_prog;
+ bool xdp_tx_cmpl = false;
unsigned int true_bufsz;
struct sk_buff *skb;
int pkts_polled = 0;
@@ -1574,10 +1625,11 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
struct nfp_net_rx_buf *rxbuf;
struct nfp_net_rx_desc *rxd;
struct nfp_meta_parsed meta;
+ struct net_device *netdev;
dma_addr_t new_dma_addr;
void *new_frag;
- idx = rx_ring->rd_p & (rx_ring->cnt - 1);
+ idx = D_IDX(rx_ring, rx_ring->rd_p);
rxd = &rx_ring->rxds[idx];
if (!(rxd->rxd.meta_len_dd & PCIE_DESC_RX_DD))
@@ -1652,7 +1704,7 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
}
if (xdp_prog && !(rxd->rxd.flags & PCIE_DESC_RX_BPF &&
- dp->bpf_offload_xdp)) {
+ dp->bpf_offload_xdp) && !meta.portid) {
unsigned int dma_off;
void *hard_start;
int act;
@@ -1669,14 +1721,17 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
if (unlikely(!nfp_net_tx_xdp_buf(dp, rx_ring,
tx_ring, rxbuf,
dma_off,
- pkt_len)))
+ pkt_len,
+ &xdp_tx_cmpl)))
trace_xdp_exception(dp->netdev,
xdp_prog, act);
continue;
default:
bpf_warn_invalid_xdp_action(act);
+ /* fall through */
case XDP_ABORTED:
trace_xdp_exception(dp->netdev, xdp_prog, act);
+ /* fall through */
case XDP_DROP:
nfp_net_rx_give_one(dp, rx_ring, rxbuf->frag,
rxbuf->dma_addr);
@@ -1695,6 +1750,20 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
continue;
}
+ if (likely(!meta.portid)) {
+ netdev = dp->netdev;
+ } else {
+ struct nfp_net *nn;
+
+ nn = netdev_priv(dp->netdev);
+ netdev = nfp_app_repr_get(nn->app, meta.portid);
+ if (unlikely(!netdev)) {
+ nfp_net_rx_drop(dp, r_vec, rx_ring, rxbuf, skb);
+ continue;
+ }
+ nfp_repr_inc_rx_stats(netdev, pkt_len);
+ }
+
nfp_net_dma_unmap_rx(dp, rxbuf->dma_addr);
nfp_net_rx_give_one(dp, rx_ring, new_frag, new_dma_addr);
@@ -1706,9 +1775,9 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
skb_set_hash(skb, meta.hash, meta.hash_type);
skb_record_rx_queue(skb, rx_ring->idx);
- skb->protocol = eth_type_trans(skb, dp->netdev);
+ skb->protocol = eth_type_trans(skb, netdev);
- nfp_net_rx_csum(dp, r_vec, rxd, skb);
+ nfp_net_rx_csum(dp, r_vec, rxd, &meta, skb);
if (rxd->rxd.flags & PCIE_DESC_RX_VLAN)
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
@@ -1717,8 +1786,14 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
napi_gro_receive(&rx_ring->r_vec->napi, skb);
}
- if (xdp_prog && tx_ring->wr_ptr_add)
- nfp_net_tx_xmit_more_flush(tx_ring);
+ if (xdp_prog) {
+ if (tx_ring->wr_ptr_add)
+ nfp_net_tx_xmit_more_flush(tx_ring);
+ else if (unlikely(tx_ring->wr_p != tx_ring->rd_p) &&
+ !xdp_tx_cmpl)
+ if (!nfp_net_xdp_complete(tx_ring))
+ pkts_polled = budget;
+ }
rcu_read_unlock();
return pkts_polled;
@@ -1739,11 +1814,8 @@ static int nfp_net_poll(struct napi_struct *napi, int budget)
if (r_vec->tx_ring)
nfp_net_tx_complete(r_vec->tx_ring);
- if (r_vec->rx_ring) {
+ if (r_vec->rx_ring)
pkts_polled = nfp_net_rx(r_vec->rx_ring, budget);
- if (r_vec->xdp_ring)
- nfp_net_xdp_complete(r_vec->xdp_ring);
- }
if (pkts_polled < budget)
if (napi_complete_done(napi, pkts_polled))
@@ -1752,10 +1824,273 @@ static int nfp_net_poll(struct napi_struct *napi, int budget)
return pkts_polled;
}
+/* Control device data path
+ */
+
+static bool
+nfp_ctrl_tx_one(struct nfp_net *nn, struct nfp_net_r_vector *r_vec,
+ struct sk_buff *skb, bool old)
+{
+ unsigned int real_len = skb->len, meta_len = 0;
+ struct nfp_net_tx_ring *tx_ring;
+ struct nfp_net_tx_buf *txbuf;
+ struct nfp_net_tx_desc *txd;
+ struct nfp_net_dp *dp;
+ dma_addr_t dma_addr;
+ int wr_idx;
+
+ dp = &r_vec->nfp_net->dp;
+ tx_ring = r_vec->tx_ring;
+
+ if (WARN_ON_ONCE(skb_shinfo(skb)->nr_frags)) {
+ nn_dp_warn(dp, "Driver's CTRL TX does not implement gather\n");
+ goto err_free;
+ }
+
+ if (unlikely(nfp_net_tx_full(tx_ring, 1))) {
+ u64_stats_update_begin(&r_vec->tx_sync);
+ r_vec->tx_busy++;
+ u64_stats_update_end(&r_vec->tx_sync);
+ if (!old)
+ __skb_queue_tail(&r_vec->queue, skb);
+ else
+ __skb_queue_head(&r_vec->queue, skb);
+ return true;
+ }
+
+ if (nfp_app_ctrl_has_meta(nn->app)) {
+ if (unlikely(skb_headroom(skb) < 8)) {
+ nn_dp_warn(dp, "CTRL TX on skb without headroom\n");
+ goto err_free;
+ }
+ meta_len = 8;
+ put_unaligned_be32(NFP_META_PORT_ID_CTRL, skb_push(skb, 4));
+ put_unaligned_be32(NFP_NET_META_PORTID, skb_push(skb, 4));
+ }
+
+ /* Start with the head skbuf */
+ dma_addr = dma_map_single(dp->dev, skb->data, skb_headlen(skb),
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(dp->dev, dma_addr))
+ goto err_dma_warn;
+
+ wr_idx = D_IDX(tx_ring, tx_ring->wr_p);
+
+ /* Stash the soft descriptor of the head then initialize it */
+ txbuf = &tx_ring->txbufs[wr_idx];
+ txbuf->skb = skb;
+ txbuf->dma_addr = dma_addr;
+ txbuf->fidx = -1;
+ txbuf->pkt_cnt = 1;
+ txbuf->real_len = real_len;
+
+ /* Build TX descriptor */
+ txd = &tx_ring->txds[wr_idx];
+ txd->offset_eop = meta_len | PCIE_DESC_TX_EOP;
+ txd->dma_len = cpu_to_le16(skb_headlen(skb));
+ nfp_desc_set_dma_addr(txd, dma_addr);
+ txd->data_len = cpu_to_le16(skb->len);
+
+ txd->flags = 0;
+ txd->mss = 0;
+ txd->lso_hdrlen = 0;
+
+ tx_ring->wr_p++;
+ tx_ring->wr_ptr_add++;
+ nfp_net_tx_xmit_more_flush(tx_ring);
+
+ return false;
+
+err_dma_warn:
+ nn_dp_warn(dp, "Failed to DMA map TX CTRL buffer\n");
+err_free:
+ u64_stats_update_begin(&r_vec->tx_sync);
+ r_vec->tx_errors++;
+ u64_stats_update_end(&r_vec->tx_sync);
+ dev_kfree_skb_any(skb);
+ return false;
+}
+
+bool nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb)
+{
+ struct nfp_net_r_vector *r_vec = &nn->r_vecs[0];
+ bool ret;
+
+ spin_lock_bh(&r_vec->lock);
+ ret = nfp_ctrl_tx_one(nn, r_vec, skb, false);
+ spin_unlock_bh(&r_vec->lock);
+
+ return ret;
+}
+
+static void __nfp_ctrl_tx_queued(struct nfp_net_r_vector *r_vec)
+{
+ struct sk_buff *skb;
+
+ while ((skb = __skb_dequeue(&r_vec->queue)))
+ if (nfp_ctrl_tx_one(r_vec->nfp_net, r_vec, skb, true))
+ return;
+}
+
+static bool
+nfp_ctrl_meta_ok(struct nfp_net *nn, void *data, unsigned int meta_len)
+{
+ u32 meta_type, meta_tag;
+
+ if (!nfp_app_ctrl_has_meta(nn->app))
+ return !meta_len;
+
+ if (meta_len != 8)
+ return false;
+
+ meta_type = get_unaligned_be32(data);
+ meta_tag = get_unaligned_be32(data + 4);
+
+ return (meta_type == NFP_NET_META_PORTID &&
+ meta_tag == NFP_META_PORT_ID_CTRL);
+}
+
+static bool
+nfp_ctrl_rx_one(struct nfp_net *nn, struct nfp_net_dp *dp,
+ struct nfp_net_r_vector *r_vec, struct nfp_net_rx_ring *rx_ring)
+{
+ unsigned int meta_len, data_len, meta_off, pkt_len, pkt_off;
+ struct nfp_net_rx_buf *rxbuf;
+ struct nfp_net_rx_desc *rxd;
+ dma_addr_t new_dma_addr;
+ struct sk_buff *skb;
+ void *new_frag;
+ int idx;
+
+ idx = D_IDX(rx_ring, rx_ring->rd_p);
+
+ rxd = &rx_ring->rxds[idx];
+ if (!(rxd->rxd.meta_len_dd & PCIE_DESC_RX_DD))
+ return false;
+
+ /* Memory barrier to ensure that we won't do other reads
+ * before the DD bit.
+ */
+ dma_rmb();
+
+ rx_ring->rd_p++;
+
+ rxbuf = &rx_ring->rxbufs[idx];
+ meta_len = rxd->rxd.meta_len_dd & PCIE_DESC_RX_META_LEN_MASK;
+ data_len = le16_to_cpu(rxd->rxd.data_len);
+ pkt_len = data_len - meta_len;
+
+ pkt_off = NFP_NET_RX_BUF_HEADROOM + dp->rx_dma_off;
+ if (dp->rx_offset == NFP_NET_CFG_RX_OFFSET_DYNAMIC)
+ pkt_off += meta_len;
+ else
+ pkt_off += dp->rx_offset;
+ meta_off = pkt_off - meta_len;
+
+ /* Stats update */
+ u64_stats_update_begin(&r_vec->rx_sync);
+ r_vec->rx_pkts++;
+ r_vec->rx_bytes += pkt_len;
+ u64_stats_update_end(&r_vec->rx_sync);
+
+ nfp_net_dma_sync_cpu_rx(dp, rxbuf->dma_addr + meta_off, data_len);
+
+ if (unlikely(!nfp_ctrl_meta_ok(nn, rxbuf->frag + meta_off, meta_len))) {
+ nn_dp_warn(dp, "incorrect metadata for ctrl packet (%d)\n",
+ meta_len);
+ nfp_net_rx_drop(dp, r_vec, rx_ring, rxbuf, NULL);
+ return true;
+ }
+
+ skb = build_skb(rxbuf->frag, dp->fl_bufsz);
+ if (unlikely(!skb)) {
+ nfp_net_rx_drop(dp, r_vec, rx_ring, rxbuf, NULL);
+ return true;
+ }
+ new_frag = nfp_net_napi_alloc_one(dp, &new_dma_addr);
+ if (unlikely(!new_frag)) {
+ nfp_net_rx_drop(dp, r_vec, rx_ring, rxbuf, skb);
+ return true;
+ }
+
+ nfp_net_dma_unmap_rx(dp, rxbuf->dma_addr);
+
+ nfp_net_rx_give_one(dp, rx_ring, new_frag, new_dma_addr);
+
+ skb_reserve(skb, pkt_off);
+ skb_put(skb, pkt_len);
+
+ nfp_app_ctrl_rx(nn->app, skb);
+
+ return true;
+}
+
+static void nfp_ctrl_rx(struct nfp_net_r_vector *r_vec)
+{
+ struct nfp_net_rx_ring *rx_ring = r_vec->rx_ring;
+ struct nfp_net *nn = r_vec->nfp_net;
+ struct nfp_net_dp *dp = &nn->dp;
+
+ while (nfp_ctrl_rx_one(nn, dp, r_vec, rx_ring))
+ continue;
+}
+
+static void nfp_ctrl_poll(unsigned long arg)
+{
+ struct nfp_net_r_vector *r_vec = (void *)arg;
+
+ spin_lock_bh(&r_vec->lock);
+ nfp_net_tx_complete(r_vec->tx_ring);
+ __nfp_ctrl_tx_queued(r_vec);
+ spin_unlock_bh(&r_vec->lock);
+
+ nfp_ctrl_rx(r_vec);
+
+ nfp_net_irq_unmask(r_vec->nfp_net, r_vec->irq_entry);
+}
+
/* Setup and Configuration
*/
/**
+ * nfp_net_vecs_init() - Assign IRQs and setup rvecs.
+ * @nn: NFP Network structure
+ */
+static void nfp_net_vecs_init(struct nfp_net *nn)
+{
+ struct nfp_net_r_vector *r_vec;
+ int r;
+
+ nn->lsc_handler = nfp_net_irq_lsc;
+ nn->exn_handler = nfp_net_irq_exn;
+
+ for (r = 0; r < nn->max_r_vecs; r++) {
+ struct msix_entry *entry;
+
+ entry = &nn->irq_entries[NFP_NET_NON_Q_VECTORS + r];
+
+ r_vec = &nn->r_vecs[r];
+ r_vec->nfp_net = nn;
+ r_vec->irq_entry = entry->entry;
+ r_vec->irq_vector = entry->vector;
+
+ if (nn->dp.netdev) {
+ r_vec->handler = nfp_net_irq_rxtx;
+ } else {
+ r_vec->handler = nfp_ctrl_irq_rxtx;
+
+ __skb_queue_head_init(&r_vec->queue);
+ spin_lock_init(&r_vec->lock);
+ tasklet_init(&r_vec->tasklet, nfp_ctrl_poll,
+ (unsigned long)r_vec);
+ tasklet_disable(&r_vec->tasklet);
+ }
+
+ cpumask_set_cpu(r, &r_vec->affinity_mask);
+ }
+}
+
+/**
* nfp_net_tx_ring_free() - Free resources allocated to a TX ring
* @tx_ring: TX ring to free
*/
@@ -1803,7 +2138,7 @@ nfp_net_tx_ring_alloc(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring)
if (!tx_ring->txbufs)
goto err_alloc;
- if (!tx_ring->is_xdp)
+ if (!tx_ring->is_xdp && dp->netdev)
netif_set_xps_queue(dp->netdev, &r_vec->affinity_mask,
tx_ring->idx);
@@ -2017,15 +2352,22 @@ nfp_net_prepare_vector(struct nfp_net *nn, struct nfp_net_r_vector *r_vec,
int err;
/* Setup NAPI */
- netif_napi_add(nn->dp.netdev, &r_vec->napi,
- nfp_net_poll, NAPI_POLL_WEIGHT);
+ if (nn->dp.netdev)
+ netif_napi_add(nn->dp.netdev, &r_vec->napi,
+ nfp_net_poll, NAPI_POLL_WEIGHT);
+ else
+ tasklet_enable(&r_vec->tasklet);
snprintf(r_vec->name, sizeof(r_vec->name),
- "%s-rxtx-%d", nn->dp.netdev->name, idx);
+ "%s-rxtx-%d", nfp_net_name(nn), idx);
err = request_irq(r_vec->irq_vector, r_vec->handler, 0, r_vec->name,
r_vec);
if (err) {
- netif_napi_del(&r_vec->napi);
+ if (nn->dp.netdev)
+ netif_napi_del(&r_vec->napi);
+ else
+ tasklet_disable(&r_vec->tasklet);
+
nn_err(nn, "Error requesting IRQ %d\n", r_vec->irq_vector);
return err;
}
@@ -2043,7 +2385,11 @@ static void
nfp_net_cleanup_vector(struct nfp_net *nn, struct nfp_net_r_vector *r_vec)
{
irq_set_affinity_hint(r_vec->irq_vector, NULL);
- netif_napi_del(&r_vec->napi);
+ if (nn->dp.netdev)
+ netif_napi_del(&r_vec->napi);
+ else
+ tasklet_disable(&r_vec->tasklet);
+
free_irq(r_vec->irq_vector, r_vec);
}
@@ -2105,17 +2451,16 @@ void nfp_net_coalesce_write_cfg(struct nfp_net *nn)
/**
* nfp_net_write_mac_addr() - Write mac address to the device control BAR
* @nn: NFP Net device to reconfigure
+ * @addr: MAC address to write
*
* Writes the MAC address from the netdev to the device control BAR. Does not
* perform the required reconfig. We do a bit of byte swapping dance because
* firmware is LE.
*/
-static void nfp_net_write_mac_addr(struct nfp_net *nn)
+static void nfp_net_write_mac_addr(struct nfp_net *nn, const u8 *addr)
{
- nn_writel(nn, NFP_NET_CFG_MACADDR + 0,
- get_unaligned_be32(nn->dp.netdev->dev_addr));
- nn_writew(nn, NFP_NET_CFG_MACADDR + 6,
- get_unaligned_be16(nn->dp.netdev->dev_addr + 4));
+ nn_writel(nn, NFP_NET_CFG_MACADDR + 0, get_unaligned_be32(addr));
+ nn_writew(nn, NFP_NET_CFG_MACADDR + 6, get_unaligned_be16(addr + 4));
}
static void nfp_net_vec_clear_ring_data(struct nfp_net *nn, unsigned int idx)
@@ -2197,17 +2542,15 @@ static int nfp_net_set_config_and_enable(struct nfp_net *nn)
new_ctrl = nn->dp.ctrl;
- if (nn->cap & NFP_NET_CFG_CTRL_RSS) {
+ if (nn->dp.ctrl & NFP_NET_CFG_CTRL_RSS_ANY) {
nfp_net_rss_write_key(nn);
nfp_net_rss_write_itbl(nn);
nn_writel(nn, NFP_NET_CFG_RSS_CTRL, nn->rss_cfg);
update |= NFP_NET_CFG_UPDATE_RSS;
}
- if (nn->cap & NFP_NET_CFG_CTRL_IRQMOD) {
+ if (nn->dp.ctrl & NFP_NET_CFG_CTRL_IRQMOD) {
nfp_net_coalesce_write_cfg(nn);
-
- new_ctrl |= NFP_NET_CFG_CTRL_IRQMOD;
update |= NFP_NET_CFG_UPDATE_IRQMOD;
}
@@ -2222,9 +2565,10 @@ static int nfp_net_set_config_and_enable(struct nfp_net *nn)
nn_writeq(nn, NFP_NET_CFG_RXRS_ENABLE, nn->dp.num_rx_rings == 64 ?
0xffffffffffffffffULL : ((u64)1 << nn->dp.num_rx_rings) - 1);
- nfp_net_write_mac_addr(nn);
+ if (nn->dp.netdev)
+ nfp_net_write_mac_addr(nn, nn->dp.netdev->dev_addr);
- nn_writel(nn, NFP_NET_CFG_MTU, nn->dp.netdev->mtu);
+ nn_writel(nn, NFP_NET_CFG_MTU, nn->dp.mtu);
bufsz = nn->dp.fl_bufsz - nn->dp.rx_dma_off - NFP_NET_RX_BUF_NON_DATA;
nn_writel(nn, NFP_NET_CFG_FLBUFSZ, bufsz);
@@ -2262,6 +2606,86 @@ static int nfp_net_set_config_and_enable(struct nfp_net *nn)
}
/**
+ * nfp_net_close_stack() - Quiesce the stack (part of close)
+ * @nn: NFP Net device to reconfigure
+ */
+static void nfp_net_close_stack(struct nfp_net *nn)
+{
+ unsigned int r;
+
+ disable_irq(nn->irq_entries[NFP_NET_IRQ_LSC_IDX].vector);
+ netif_carrier_off(nn->dp.netdev);
+ nn->link_up = false;
+
+ for (r = 0; r < nn->dp.num_r_vecs; r++) {
+ disable_irq(nn->r_vecs[r].irq_vector);
+ napi_disable(&nn->r_vecs[r].napi);
+ }
+
+ netif_tx_disable(nn->dp.netdev);
+}
+
+/**
+ * nfp_net_close_free_all() - Free all runtime resources
+ * @nn: NFP Net device to reconfigure
+ */
+static void nfp_net_close_free_all(struct nfp_net *nn)
+{
+ unsigned int r;
+
+ nfp_net_tx_rings_free(&nn->dp);
+ nfp_net_rx_rings_free(&nn->dp);
+
+ for (r = 0; r < nn->dp.num_r_vecs; r++)
+ nfp_net_cleanup_vector(nn, &nn->r_vecs[r]);
+
+ nfp_net_aux_irq_free(nn, NFP_NET_CFG_LSC, NFP_NET_IRQ_LSC_IDX);
+ nfp_net_aux_irq_free(nn, NFP_NET_CFG_EXN, NFP_NET_IRQ_EXN_IDX);
+}
+
+/**
+ * nfp_net_netdev_close() - Called when the device is downed
+ * @netdev: netdev structure
+ */
+static int nfp_net_netdev_close(struct net_device *netdev)
+{
+ struct nfp_net *nn = netdev_priv(netdev);
+
+ /* Step 1: Disable RX and TX rings from the Linux kernel perspective
+ */
+ nfp_net_close_stack(nn);
+
+ /* Step 2: Tell NFP
+ */
+ nfp_net_clear_config_and_disable(nn);
+
+ /* Step 3: Free resources
+ */
+ nfp_net_close_free_all(nn);
+
+ nn_dbg(nn, "%s down", netdev->name);
+ return 0;
+}
+
+void nfp_ctrl_close(struct nfp_net *nn)
+{
+ int r;
+
+ rtnl_lock();
+
+ for (r = 0; r < nn->dp.num_r_vecs; r++) {
+ disable_irq(nn->r_vecs[r].irq_vector);
+ tasklet_disable(&nn->r_vecs[r].tasklet);
+ }
+
+ nfp_net_clear_config_and_disable(nn);
+
+ nfp_net_close_free_all(nn);
+
+ rtnl_unlock();
+}
+
+/**
* nfp_net_open_stack() - Start the device from stack's perspective
* @nn: NFP Net device to reconfigure
*/
@@ -2280,16 +2704,10 @@ static void nfp_net_open_stack(struct nfp_net *nn)
nfp_net_read_link_status(nn);
}
-static int nfp_net_netdev_open(struct net_device *netdev)
+static int nfp_net_open_alloc_all(struct nfp_net *nn)
{
- struct nfp_net *nn = netdev_priv(netdev);
int err, r;
- /* Step 1: Allocate resources for rings and the like
- * - Request interrupts
- * - Allocate RX and TX ring resources
- * - Setup initial RSS table
- */
err = nfp_net_aux_irq_request(nn, NFP_NET_CFG_EXN, "%s-exn",
nn->exn_name, sizeof(nn->exn_name),
NFP_NET_IRQ_EXN_IDX, nn->exn_handler);
@@ -2319,13 +2737,42 @@ static int nfp_net_netdev_open(struct net_device *netdev)
for (r = 0; r < nn->max_r_vecs; r++)
nfp_net_vector_assign_rings(&nn->dp, &nn->r_vecs[r], r);
+ return 0;
+
+err_free_rx_rings:
+ nfp_net_rx_rings_free(&nn->dp);
+err_cleanup_vec:
+ r = nn->dp.num_r_vecs;
+err_cleanup_vec_p:
+ while (r--)
+ nfp_net_cleanup_vector(nn, &nn->r_vecs[r]);
+ nfp_net_aux_irq_free(nn, NFP_NET_CFG_LSC, NFP_NET_IRQ_LSC_IDX);
+err_free_exn:
+ nfp_net_aux_irq_free(nn, NFP_NET_CFG_EXN, NFP_NET_IRQ_EXN_IDX);
+ return err;
+}
+
+static int nfp_net_netdev_open(struct net_device *netdev)
+{
+ struct nfp_net *nn = netdev_priv(netdev);
+ int err;
+
+ /* Step 1: Allocate resources for rings and the like
+ * - Request interrupts
+ * - Allocate RX and TX ring resources
+ * - Setup initial RSS table
+ */
+ err = nfp_net_open_alloc_all(nn);
+ if (err)
+ return err;
+
err = netif_set_real_num_tx_queues(netdev, nn->dp.num_stack_tx_rings);
if (err)
- goto err_free_rings;
+ goto err_free_all;
err = netif_set_real_num_rx_queues(netdev, nn->dp.num_rx_rings);
if (err)
- goto err_free_rings;
+ goto err_free_all;
/* Step 2: Configure the NFP
* - Enable rings from 0 to tx_rings/rx_rings - 1.
@@ -2336,7 +2783,7 @@ static int nfp_net_netdev_open(struct net_device *netdev)
*/
err = nfp_net_set_config_and_enable(nn);
if (err)
- goto err_free_rings;
+ goto err_free_all;
/* Step 3: Enable for kernel
* - put some freelist descriptors on each RX ring
@@ -2348,89 +2795,38 @@ static int nfp_net_netdev_open(struct net_device *netdev)
return 0;
-err_free_rings:
- nfp_net_tx_rings_free(&nn->dp);
-err_free_rx_rings:
- nfp_net_rx_rings_free(&nn->dp);
-err_cleanup_vec:
- r = nn->dp.num_r_vecs;
-err_cleanup_vec_p:
- while (r--)
- nfp_net_cleanup_vector(nn, &nn->r_vecs[r]);
- nfp_net_aux_irq_free(nn, NFP_NET_CFG_LSC, NFP_NET_IRQ_LSC_IDX);
-err_free_exn:
- nfp_net_aux_irq_free(nn, NFP_NET_CFG_EXN, NFP_NET_IRQ_EXN_IDX);
+err_free_all:
+ nfp_net_close_free_all(nn);
return err;
}
-/**
- * nfp_net_close_stack() - Quiescent the stack (part of close)
- * @nn: NFP Net device to reconfigure
- */
-static void nfp_net_close_stack(struct nfp_net *nn)
+int nfp_ctrl_open(struct nfp_net *nn)
{
- unsigned int r;
-
- disable_irq(nn->irq_entries[NFP_NET_IRQ_LSC_IDX].vector);
- netif_carrier_off(nn->dp.netdev);
- nn->link_up = false;
+ int err, r;
- for (r = 0; r < nn->dp.num_r_vecs; r++) {
- disable_irq(nn->r_vecs[r].irq_vector);
- napi_disable(&nn->r_vecs[r].napi);
- }
+ /* ring dumping depends on vNICs being opened/closed under rtnl */
+ rtnl_lock();
- netif_tx_disable(nn->dp.netdev);
-}
+ err = nfp_net_open_alloc_all(nn);
+ if (err)
+ goto err_unlock;
-/**
- * nfp_net_close_free_all() - Free all runtime resources
- * @nn: NFP Net device to reconfigure
- */
-static void nfp_net_close_free_all(struct nfp_net *nn)
-{
- unsigned int r;
+ err = nfp_net_set_config_and_enable(nn);
+ if (err)
+ goto err_free_all;
- for (r = 0; r < nn->dp.num_rx_rings; r++) {
- nfp_net_rx_ring_bufs_free(&nn->dp, &nn->dp.rx_rings[r]);
- nfp_net_rx_ring_free(&nn->dp.rx_rings[r]);
- }
- for (r = 0; r < nn->dp.num_tx_rings; r++) {
- nfp_net_tx_ring_bufs_free(&nn->dp, &nn->dp.tx_rings[r]);
- nfp_net_tx_ring_free(&nn->dp.tx_rings[r]);
- }
for (r = 0; r < nn->dp.num_r_vecs; r++)
- nfp_net_cleanup_vector(nn, &nn->r_vecs[r]);
-
- kfree(nn->dp.rx_rings);
- kfree(nn->dp.tx_rings);
-
- nfp_net_aux_irq_free(nn, NFP_NET_CFG_LSC, NFP_NET_IRQ_LSC_IDX);
- nfp_net_aux_irq_free(nn, NFP_NET_CFG_EXN, NFP_NET_IRQ_EXN_IDX);
-}
-
-/**
- * nfp_net_netdev_close() - Called when the device is downed
- * @netdev: netdev structure
- */
-static int nfp_net_netdev_close(struct net_device *netdev)
-{
- struct nfp_net *nn = netdev_priv(netdev);
+ enable_irq(nn->r_vecs[r].irq_vector);
- /* Step 1: Disable RX and TX rings from the Linux kernel perspective
- */
- nfp_net_close_stack(nn);
+ rtnl_unlock();
- /* Step 2: Tell NFP
- */
- nfp_net_clear_config_and_disable(nn);
+ return 0;
- /* Step 3: Free resources
- */
+err_free_all:
nfp_net_close_free_all(nn);
-
- nn_dbg(nn, "%s down", netdev->name);
- return 0;
+err_unlock:
+ rtnl_unlock();
+ return err;
}
static void nfp_net_set_rx_mode(struct net_device *netdev)
@@ -2634,6 +3030,40 @@ static int nfp_net_change_mtu(struct net_device *netdev, int new_mtu)
return nfp_net_ring_reconfig(nn, dp, NULL);
}
+static int
+nfp_net_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
+{
+ struct nfp_net *nn = netdev_priv(netdev);
+
+ /* Priority tagged packets with vlan id 0 are processed by the
+ * NFP as untagged packets
+ */
+ if (!vid)
+ return 0;
+
+ nn_writew(nn, NFP_NET_CFG_VLAN_FILTER_VID, vid);
+ nn_writew(nn, NFP_NET_CFG_VLAN_FILTER_PROTO, ETH_P_8021Q);
+
+ return nfp_net_reconfig_mbox(nn, NFP_NET_CFG_MBOX_CMD_CTAG_FILTER_ADD);
+}
+
+static int
+nfp_net_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid)
+{
+ struct nfp_net *nn = netdev_priv(netdev);
+
+ /* Priority tagged packets with vlan id 0 are processed by the
+ * NFP as untagged packets
+ */
+ if (!vid)
+ return 0;
+
+ nn_writew(nn, NFP_NET_CFG_VLAN_FILTER_VID, vid);
+ nn_writew(nn, NFP_NET_CFG_VLAN_FILTER_PROTO, ETH_P_8021Q);
+
+ return nfp_net_reconfig_mbox(nn, NFP_NET_CFG_MBOX_CMD_CTAG_FILTER_KILL);
+}
+
static void nfp_net_stat64(struct net_device *netdev,
struct rtnl_link_stats64 *stats)
{
@@ -2667,35 +3097,6 @@ static void nfp_net_stat64(struct net_device *netdev,
}
}
-static bool nfp_net_ebpf_capable(struct nfp_net *nn)
-{
- if (nn->cap & NFP_NET_CFG_CTRL_BPF &&
- nn_readb(nn, NFP_NET_CFG_BPF_ABI) == NFP_NET_BPF_ABI)
- return true;
- return false;
-}
-
-static int
-nfp_net_setup_tc(struct net_device *netdev, u32 handle, __be16 proto,
- struct tc_to_netdev *tc)
-{
- struct nfp_net *nn = netdev_priv(netdev);
-
- if (TC_H_MAJ(handle) != TC_H_MAJ(TC_H_INGRESS))
- return -EOPNOTSUPP;
- if (proto != htons(ETH_P_ALL))
- return -EOPNOTSUPP;
-
- if (tc->type == TC_SETUP_CLSBPF && nfp_net_ebpf_capable(nn)) {
- if (!nn->dp.bpf_offload_xdp)
- return nfp_net_bpf_offload(nn, tc->cls_bpf);
- else
- return -EBUSY;
- }
-
- return -EINVAL;
-}
-
static int nfp_net_set_features(struct net_device *netdev,
netdev_features_t features)
{
@@ -2710,9 +3111,9 @@ static int nfp_net_set_features(struct net_device *netdev,
if (changed & NETIF_F_RXCSUM) {
if (features & NETIF_F_RXCSUM)
- new_ctrl |= NFP_NET_CFG_CTRL_RXCSUM;
+ new_ctrl |= nn->cap & NFP_NET_CFG_CTRL_RXCSUM_ANY;
else
- new_ctrl &= ~NFP_NET_CFG_CTRL_RXCSUM;
+ new_ctrl &= ~NFP_NET_CFG_CTRL_RXCSUM_ANY;
}
if (changed & (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)) {
@@ -2724,9 +3125,10 @@ static int nfp_net_set_features(struct net_device *netdev,
if (changed & (NETIF_F_TSO | NETIF_F_TSO6)) {
if (features & (NETIF_F_TSO | NETIF_F_TSO6))
- new_ctrl |= NFP_NET_CFG_CTRL_LSO;
+ new_ctrl |= nn->cap & NFP_NET_CFG_CTRL_LSO2 ?:
+ NFP_NET_CFG_CTRL_LSO;
else
- new_ctrl &= ~NFP_NET_CFG_CTRL_LSO;
+ new_ctrl &= ~NFP_NET_CFG_CTRL_LSO_ANY;
}
if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
@@ -2743,6 +3145,13 @@ static int nfp_net_set_features(struct net_device *netdev,
new_ctrl &= ~NFP_NET_CFG_CTRL_TXVLAN;
}
+ if (changed & NETIF_F_HW_VLAN_CTAG_FILTER) {
+ if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
+ new_ctrl |= NFP_NET_CFG_CTRL_CTAG_FILTER;
+ else
+ new_ctrl &= ~NFP_NET_CFG_CTRL_CTAG_FILTER;
+ }
+
if (changed & NETIF_F_SG) {
if (features & NETIF_F_SG)
new_ctrl |= NFP_NET_CFG_CTRL_GATHER;
@@ -2750,7 +3159,7 @@ static int nfp_net_set_features(struct net_device *netdev,
new_ctrl &= ~NFP_NET_CFG_CTRL_GATHER;
}
- if (changed & NETIF_F_HW_TC && nn->dp.ctrl & NFP_NET_CFG_CTRL_BPF) {
+ if (changed & NETIF_F_HW_TC && nfp_app_tc_busy(nn->app, nn)) {
nn_err(nn, "Cannot disable HW TC offload while in use\n");
return -EBUSY;
}
@@ -2818,26 +3227,6 @@ nfp_net_features_check(struct sk_buff *skb, struct net_device *dev,
return features;
}
-static int
-nfp_net_get_phys_port_name(struct net_device *netdev, char *name, size_t len)
-{
- struct nfp_net *nn = netdev_priv(netdev);
- int err;
-
- if (!nn->eth_port)
- return -EOPNOTSUPP;
-
- if (!nn->eth_port->is_split)
- err = snprintf(name, len, "p%d", nn->eth_port->label_port);
- else
- err = snprintf(name, len, "p%ds%d", nn->eth_port->label_port,
- nn->eth_port->label_subport);
- if (err >= len)
- return -EINVAL;
-
- return 0;
-}
-
/**
* nfp_net_set_vxlan_port() - set vxlan port in SW and reconfigure HW
* @nn: NFP Net device to reconfigure
@@ -2919,47 +3308,14 @@ static void nfp_net_del_vxlan_port(struct net_device *netdev,
nfp_net_set_vxlan_port(nn, idx, 0);
}
-static int nfp_net_xdp_offload(struct nfp_net *nn, struct bpf_prog *prog)
-{
- struct tc_cls_bpf_offload cmd = {
- .prog = prog,
- };
- int ret;
-
- if (!nfp_net_ebpf_capable(nn))
- return -EINVAL;
-
- if (nn->dp.ctrl & NFP_NET_CFG_CTRL_BPF) {
- if (!nn->dp.bpf_offload_xdp)
- return prog ? -EBUSY : 0;
- cmd.command = prog ? TC_CLSBPF_REPLACE : TC_CLSBPF_DESTROY;
- } else {
- if (!prog)
- return 0;
- cmd.command = TC_CLSBPF_ADD;
- }
-
- ret = nfp_net_bpf_offload(nn, &cmd);
- /* Stop offload if replace not possible */
- if (ret && cmd.command == TC_CLSBPF_REPLACE)
- nfp_net_xdp_offload(nn, NULL);
- nn->dp.bpf_offload_xdp = prog && !ret;
- return ret;
-}
-
-static int nfp_net_xdp_setup(struct nfp_net *nn, struct netdev_xdp *xdp)
+static int
+nfp_net_xdp_setup_drv(struct nfp_net *nn, struct bpf_prog *prog,
+ struct netlink_ext_ack *extack)
{
- struct bpf_prog *old_prog = nn->dp.xdp_prog;
- struct bpf_prog *prog = xdp->prog;
struct nfp_net_dp *dp;
- int err;
- if (!prog && !nn->dp.xdp_prog)
- return 0;
- if (prog && nn->dp.xdp_prog) {
- prog = xchg(&nn->dp.xdp_prog, prog);
- bpf_prog_put(prog);
- nfp_net_xdp_offload(nn, nn->dp.xdp_prog);
+ if (!prog == !nn->dp.xdp_prog) {
+ WRITE_ONCE(nn->dp.xdp_prog, prog);
return 0;
}
@@ -2973,14 +3329,37 @@ static int nfp_net_xdp_setup(struct nfp_net *nn, struct netdev_xdp *xdp)
dp->rx_dma_off = prog ? XDP_PACKET_HEADROOM - nn->dp.rx_offset : 0;
/* We need RX reconfig to remap the buffers (BIDIR vs FROM_DEV) */
- err = nfp_net_ring_reconfig(nn, dp, xdp->extack);
+ return nfp_net_ring_reconfig(nn, dp, extack);
+}
+
+static int
+nfp_net_xdp_setup(struct nfp_net *nn, struct bpf_prog *prog, u32 flags,
+ struct netlink_ext_ack *extack)
+{
+ struct bpf_prog *drv_prog, *offload_prog;
+ int err;
+
+ if (nn->xdp_prog && (flags ^ nn->xdp_flags) & XDP_FLAGS_MODES)
+ return -EBUSY;
+
+ /* Load both when no flags set to allow easy activation of driver path
+ * when program is replaced by one which can't be offloaded.
+ */
+ drv_prog = flags & XDP_FLAGS_HW_MODE ? NULL : prog;
+ offload_prog = flags & XDP_FLAGS_DRV_MODE ? NULL : prog;
+
+ err = nfp_net_xdp_setup_drv(nn, drv_prog, extack);
if (err)
return err;
- if (old_prog)
- bpf_prog_put(old_prog);
+ err = nfp_app_xdp_offload(nn->app, nn, offload_prog);
+ if (err && flags & XDP_FLAGS_HW_MODE)
+ return err;
- nfp_net_xdp_offload(nn, nn->dp.xdp_prog);
+ if (nn->xdp_prog)
+ bpf_prog_put(nn->xdp_prog);
+ nn->xdp_prog = prog;
+ nn->xdp_flags = flags;
return 0;
}
@@ -2991,28 +3370,56 @@ static int nfp_net_xdp(struct net_device *netdev, struct netdev_xdp *xdp)
switch (xdp->command) {
case XDP_SETUP_PROG:
- return nfp_net_xdp_setup(nn, xdp);
+ case XDP_SETUP_PROG_HW:
+ return nfp_net_xdp_setup(nn, xdp->prog, xdp->flags,
+ xdp->extack);
case XDP_QUERY_PROG:
- xdp->prog_attached = !!nn->dp.xdp_prog;
+ xdp->prog_attached = !!nn->xdp_prog;
+ if (nn->dp.bpf_offload_xdp)
+ xdp->prog_attached = XDP_ATTACHED_HW;
+ xdp->prog_id = nn->xdp_prog ? nn->xdp_prog->aux->id : 0;
return 0;
default:
return -EINVAL;
}
}
-static const struct net_device_ops nfp_net_netdev_ops = {
+static int nfp_net_set_mac_address(struct net_device *netdev, void *addr)
+{
+ struct nfp_net *nn = netdev_priv(netdev);
+ struct sockaddr *saddr = addr;
+ int err;
+
+ err = eth_prepare_mac_addr_change(netdev, addr);
+ if (err)
+ return err;
+
+ nfp_net_write_mac_addr(nn, saddr->sa_data);
+
+ err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_MACADDR);
+ if (err)
+ return err;
+
+ eth_commit_mac_addr_change(netdev, addr);
+
+ return 0;
+}
+
+const struct net_device_ops nfp_net_netdev_ops = {
.ndo_open = nfp_net_netdev_open,
.ndo_stop = nfp_net_netdev_close,
.ndo_start_xmit = nfp_net_tx,
.ndo_get_stats64 = nfp_net_stat64,
- .ndo_setup_tc = nfp_net_setup_tc,
+ .ndo_vlan_rx_add_vid = nfp_net_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = nfp_net_vlan_rx_kill_vid,
+ .ndo_setup_tc = nfp_port_setup_tc,
.ndo_tx_timeout = nfp_net_tx_timeout,
.ndo_set_rx_mode = nfp_net_set_rx_mode,
.ndo_change_mtu = nfp_net_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
+ .ndo_set_mac_address = nfp_net_set_mac_address,
.ndo_set_features = nfp_net_set_features,
.ndo_features_check = nfp_net_features_check,
- .ndo_get_phys_port_name = nfp_net_get_phys_port_name,
+ .ndo_get_phys_port_name = nfp_port_get_phys_port_name,
.ndo_udp_tunnel_add = nfp_net_add_vxlan_port,
.ndo_udp_tunnel_del = nfp_net_del_vxlan_port,
.ndo_xdp = nfp_net_xdp,
@@ -3032,7 +3439,7 @@ void nfp_net_info(struct nfp_net *nn)
nn->fw_ver.resv, nn->fw_ver.class,
nn->fw_ver.major, nn->fw_ver.minor,
nn->max_mtu);
- nn_info(nn, "CAP: %#x %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
+ nn_info(nn, "CAP: %#x %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
nn->cap,
nn->cap & NFP_NET_CFG_CTRL_PROMISC ? "PROMISC " : "",
nn->cap & NFP_NET_CFG_CTRL_L2BC ? "L2BCFILT " : "",
@@ -3043,43 +3450,58 @@ void nfp_net_info(struct nfp_net *nn)
nn->cap & NFP_NET_CFG_CTRL_TXVLAN ? "TXVLAN " : "",
nn->cap & NFP_NET_CFG_CTRL_SCATTER ? "SCATTER " : "",
nn->cap & NFP_NET_CFG_CTRL_GATHER ? "GATHER " : "",
- nn->cap & NFP_NET_CFG_CTRL_LSO ? "TSO " : "",
- nn->cap & NFP_NET_CFG_CTRL_RSS ? "RSS " : "",
+ nn->cap & NFP_NET_CFG_CTRL_LSO ? "TSO1 " : "",
+ nn->cap & NFP_NET_CFG_CTRL_LSO2 ? "TSO2 " : "",
+ nn->cap & NFP_NET_CFG_CTRL_RSS ? "RSS1 " : "",
+ nn->cap & NFP_NET_CFG_CTRL_RSS2 ? "RSS2 " : "",
+ nn->cap & NFP_NET_CFG_CTRL_CTAG_FILTER ? "CTAG_FILTER " : "",
nn->cap & NFP_NET_CFG_CTRL_L2SWITCH ? "L2SWITCH " : "",
nn->cap & NFP_NET_CFG_CTRL_MSIXAUTO ? "AUTOMASK " : "",
nn->cap & NFP_NET_CFG_CTRL_IRQMOD ? "IRQMOD " : "",
nn->cap & NFP_NET_CFG_CTRL_VXLAN ? "VXLAN " : "",
nn->cap & NFP_NET_CFG_CTRL_NVGRE ? "NVGRE " : "",
- nfp_net_ebpf_capable(nn) ? "BPF " : "");
+ nn->cap & NFP_NET_CFG_CTRL_CSUM_COMPLETE ?
+ "RXCSUM_COMPLETE " : "",
+ nn->cap & NFP_NET_CFG_CTRL_LIVE_ADDR ? "LIVE_ADDR " : "",
+ nfp_app_extra_cap(nn->app, nn));
}
/**
- * nfp_net_netdev_alloc() - Allocate netdev and related structure
+ * nfp_net_alloc() - Allocate netdev and related structure
* @pdev: PCI device
+ * @needs_netdev: Whether to allocate a netdev for this vNIC
* @max_tx_rings: Maximum number of TX rings supported by device
* @max_rx_rings: Maximum number of RX rings supported by device
*
* This function allocates a netdev device and fills in the initial
- * part of the @struct nfp_net structure.
+ * part of the @struct nfp_net structure. In case of control device
+ * nfp_net structure is allocated without the netdev.
*
* Return: NFP Net device structure, or ERR_PTR on error.
*/
-struct nfp_net *nfp_net_netdev_alloc(struct pci_dev *pdev,
- unsigned int max_tx_rings,
- unsigned int max_rx_rings)
+struct nfp_net *nfp_net_alloc(struct pci_dev *pdev, bool needs_netdev,
+ unsigned int max_tx_rings,
+ unsigned int max_rx_rings)
{
- struct net_device *netdev;
struct nfp_net *nn;
- netdev = alloc_etherdev_mqs(sizeof(struct nfp_net),
- max_tx_rings, max_rx_rings);
- if (!netdev)
- return ERR_PTR(-ENOMEM);
+ if (needs_netdev) {
+ struct net_device *netdev;
- SET_NETDEV_DEV(netdev, &pdev->dev);
- nn = netdev_priv(netdev);
+ netdev = alloc_etherdev_mqs(sizeof(struct nfp_net),
+ max_tx_rings, max_rx_rings);
+ if (!netdev)
+ return ERR_PTR(-ENOMEM);
+
+ SET_NETDEV_DEV(netdev, &pdev->dev);
+ nn = netdev_priv(netdev);
+ nn->dp.netdev = netdev;
+ } else {
+ nn = vzalloc(sizeof(*nn));
+ if (!nn)
+ return ERR_PTR(-ENOMEM);
+ }
- nn->dp.netdev = netdev;
nn->dp.dev = &pdev->dev;
nn->pdev = pdev;
@@ -3099,24 +3521,27 @@ struct nfp_net *nfp_net_netdev_alloc(struct pci_dev *pdev,
nn->dp.rxd_cnt = NFP_NET_RX_DESCS_DEFAULT;
spin_lock_init(&nn->reconfig_lock);
- spin_lock_init(&nn->rx_filter_lock);
spin_lock_init(&nn->link_status_lock);
setup_timer(&nn->reconfig_timer,
nfp_net_reconfig_timer, (unsigned long)nn);
- setup_timer(&nn->rx_filter_stats_timer,
- nfp_net_filter_stats_timer, (unsigned long)nn);
return nn;
}
/**
- * nfp_net_netdev_free() - Undo what @nfp_net_netdev_alloc() did
+ * nfp_net_free() - Undo what @nfp_net_alloc() did
* @nn: NFP Net device to reconfigure
*/
-void nfp_net_netdev_free(struct nfp_net *nn)
+void nfp_net_free(struct nfp_net *nn)
{
- free_netdev(nn->dp.netdev);
+ if (nn->xdp_prog)
+ bpf_prog_put(nn->xdp_prog);
+
+ if (nn->dp.netdev)
+ free_netdev(nn->dp.netdev);
+ else
+ vfree(nn);
}
/**
@@ -3187,48 +3612,13 @@ static void nfp_net_irqmod_init(struct nfp_net *nn)
nn->tx_coalesce_max_frames = 64;
}
-/**
- * nfp_net_netdev_init() - Initialise/finalise the netdev structure
- * @netdev: netdev structure
- *
- * Return: 0 on success or negative errno on error.
- */
-int nfp_net_netdev_init(struct net_device *netdev)
+static void nfp_net_netdev_init(struct nfp_net *nn)
{
- struct nfp_net *nn = netdev_priv(netdev);
- int err;
-
- nn->dp.chained_metadata_format = nn->fw_ver.major > 3;
-
- nn->dp.rx_dma_dir = DMA_FROM_DEVICE;
-
- /* Get some of the read-only fields from the BAR */
- nn->cap = nn_readl(nn, NFP_NET_CFG_CAP);
- nn->max_mtu = nn_readl(nn, NFP_NET_CFG_MAX_MTU);
+ struct net_device *netdev = nn->dp.netdev;
- nfp_net_write_mac_addr(nn);
+ nfp_net_write_mac_addr(nn, nn->dp.netdev->dev_addr);
- /* Determine RX packet/metadata boundary offset */
- if (nn->fw_ver.major >= 2) {
- u32 reg;
-
- reg = nn_readl(nn, NFP_NET_CFG_RX_OFFSET);
- if (reg > NFP_NET_MAX_PREPEND) {
- nn_err(nn, "Invalid rx offset: %d\n", reg);
- return -EINVAL;
- }
- nn->dp.rx_offset = reg;
- } else {
- nn->dp.rx_offset = NFP_NET_RX_OFFSET;
- }
-
- /* Set default MTU and Freelist buffer size */
- if (nn->max_mtu < NFP_NET_DEFAULT_MTU)
- netdev->mtu = nn->max_mtu;
- else
- netdev->mtu = NFP_NET_DEFAULT_MTU;
- nn->dp.mtu = netdev->mtu;
- nn->dp.fl_bufsz = nfp_net_calc_fl_bufsz(&nn->dp);
+ netdev->mtu = nn->dp.mtu;
/* Advertise/enable offloads based on capabilities
*
@@ -3236,10 +3626,13 @@ int nfp_net_netdev_init(struct net_device *netdev)
* and netdev->hw_features advertises which features are
* supported. By default we enable most features.
*/
+ if (nn->cap & NFP_NET_CFG_CTRL_LIVE_ADDR)
+ netdev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+
netdev->hw_features = NETIF_F_HIGHDMA;
- if (nn->cap & NFP_NET_CFG_CTRL_RXCSUM) {
+ if (nn->cap & NFP_NET_CFG_CTRL_RXCSUM_ANY) {
netdev->hw_features |= NETIF_F_RXCSUM;
- nn->dp.ctrl |= NFP_NET_CFG_CTRL_RXCSUM;
+ nn->dp.ctrl |= nn->cap & NFP_NET_CFG_CTRL_RXCSUM_ANY;
}
if (nn->cap & NFP_NET_CFG_CTRL_TXCSUM) {
netdev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
@@ -3249,15 +3642,14 @@ int nfp_net_netdev_init(struct net_device *netdev)
netdev->hw_features |= NETIF_F_SG;
nn->dp.ctrl |= NFP_NET_CFG_CTRL_GATHER;
}
- if ((nn->cap & NFP_NET_CFG_CTRL_LSO) && nn->fw_ver.major > 2) {
+ if ((nn->cap & NFP_NET_CFG_CTRL_LSO && nn->fw_ver.major > 2) ||
+ nn->cap & NFP_NET_CFG_CTRL_LSO2) {
netdev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
- nn->dp.ctrl |= NFP_NET_CFG_CTRL_LSO;
+ nn->dp.ctrl |= nn->cap & NFP_NET_CFG_CTRL_LSO2 ?:
+ NFP_NET_CFG_CTRL_LSO;
}
- if (nn->cap & NFP_NET_CFG_CTRL_RSS) {
+ if (nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)
netdev->hw_features |= NETIF_F_RXHASH;
- nfp_net_rss_init(nn);
- nn->dp.ctrl |= NFP_NET_CFG_CTRL_RSS;
- }
if (nn->cap & NFP_NET_CFG_CTRL_VXLAN &&
nn->cap & NFP_NET_CFG_CTRL_NVGRE) {
if (nn->cap & NFP_NET_CFG_CTRL_LSO)
@@ -3275,17 +3667,98 @@ int nfp_net_netdev_init(struct net_device *netdev)
nn->dp.ctrl |= NFP_NET_CFG_CTRL_RXVLAN;
}
if (nn->cap & NFP_NET_CFG_CTRL_TXVLAN) {
- netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
- nn->dp.ctrl |= NFP_NET_CFG_CTRL_TXVLAN;
+ if (nn->cap & NFP_NET_CFG_CTRL_LSO2) {
+ nn_warn(nn, "Device advertises both TSO2 and TXVLAN. Refusing to enable TXVLAN.\n");
+ } else {
+ netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
+ nn->dp.ctrl |= NFP_NET_CFG_CTRL_TXVLAN;
+ }
+ }
+ if (nn->cap & NFP_NET_CFG_CTRL_CTAG_FILTER) {
+ netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
+ nn->dp.ctrl |= NFP_NET_CFG_CTRL_CTAG_FILTER;
}
netdev->features = netdev->hw_features;
- if (nfp_net_ebpf_capable(nn))
+ if (nfp_app_has_tc(nn->app))
netdev->hw_features |= NETIF_F_HW_TC;
/* Advertise but disable TSO by default. */
netdev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
+ nn->dp.ctrl &= ~NFP_NET_CFG_CTRL_LSO_ANY;
+
+ /* Finalise the netdev setup */
+ netdev->netdev_ops = &nfp_net_netdev_ops;
+ netdev->watchdog_timeo = msecs_to_jiffies(5 * 1000);
+
+ SWITCHDEV_SET_OPS(netdev, &nfp_port_switchdev_ops);
+
+ /* MTU range: 68 - hw-specific max */
+ netdev->min_mtu = ETH_MIN_MTU;
+ netdev->max_mtu = nn->max_mtu;
+
+ netif_carrier_off(netdev);
+
+ nfp_net_set_ethtool_ops(netdev);
+}
+
+/**
+ * nfp_net_init() - Initialise/finalise the nfp_net structure
+ * @nn: NFP Net device structure
+ *
+ * Return: 0 on success or negative errno on error.
+ */
+int nfp_net_init(struct nfp_net *nn)
+{
+ int err;
+
+ nn->dp.rx_dma_dir = DMA_FROM_DEVICE;
+
+ /* Get some of the read-only fields from the BAR */
+ nn->cap = nn_readl(nn, NFP_NET_CFG_CAP);
+ nn->max_mtu = nn_readl(nn, NFP_NET_CFG_MAX_MTU);
+
+ /* ABI 4.x and ctrl vNIC always use chained metadata, in other cases
+ * we allow use of non-chained metadata if RSS(v1) is the only
+ * advertised capability requiring metadata.
+ */
+ nn->dp.chained_metadata_format = nn->fw_ver.major == 4 ||
+ !nn->dp.netdev ||
+ !(nn->cap & NFP_NET_CFG_CTRL_RSS) ||
+ nn->cap & NFP_NET_CFG_CTRL_CHAIN_META;
+ /* RSS(v1) uses non-chained metadata format, except in ABI 4.x where
+ * it has the same meaning as RSSv2.
+ */
+ if (nn->dp.chained_metadata_format && nn->fw_ver.major != 4)
+ nn->cap &= ~NFP_NET_CFG_CTRL_RSS;
+
+ /* Determine RX packet/metadata boundary offset */
+ if (nn->fw_ver.major >= 2) {
+ u32 reg;
+
+ reg = nn_readl(nn, NFP_NET_CFG_RX_OFFSET);
+ if (reg > NFP_NET_MAX_PREPEND) {
+ nn_err(nn, "Invalid rx offset: %d\n", reg);
+ return -EINVAL;
+ }
+ nn->dp.rx_offset = reg;
+ } else {
+ nn->dp.rx_offset = NFP_NET_RX_OFFSET;
+ }
+
+ /* Set default MTU and Freelist buffer size */
+ if (nn->max_mtu < NFP_NET_DEFAULT_MTU)
+ nn->dp.mtu = nn->max_mtu;
+ else
+ nn->dp.mtu = NFP_NET_DEFAULT_MTU;
+ nn->dp.fl_bufsz = nfp_net_calc_fl_bufsz(&nn->dp);
+
+ if (nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) {
+ nfp_net_rss_init(nn);
+ nn->dp.ctrl |= nn->cap & NFP_NET_CFG_CTRL_RSS2 ?:
+ NFP_NET_CFG_CTRL_RSS;
+ }
/* Allow L2 Broadcast and Multicast through by default, if supported */
if (nn->cap & NFP_NET_CFG_CTRL_L2BC)
@@ -3299,6 +3772,9 @@ int nfp_net_netdev_init(struct net_device *netdev)
nn->dp.ctrl |= NFP_NET_CFG_CTRL_IRQMOD;
}
+ if (nn->dp.netdev)
+ nfp_net_netdev_init(nn);
+
/* Stash the re-configuration queue away. First odd queue in TX Bar */
nn->qcp_cfg = nn->tx_bar + NFP_QCP_QUEUE_ADDR_SZ;
@@ -3311,34 +3787,21 @@ int nfp_net_netdev_init(struct net_device *netdev)
if (err)
return err;
- /* Finalise the netdev setup */
- netdev->netdev_ops = &nfp_net_netdev_ops;
- netdev->watchdog_timeo = msecs_to_jiffies(5 * 1000);
-
- /* MTU range: 68 - hw-specific max */
- netdev->min_mtu = ETH_MIN_MTU;
- netdev->max_mtu = nn->max_mtu;
-
- netif_carrier_off(netdev);
-
- nfp_net_set_ethtool_ops(netdev);
- nfp_net_vecs_init(netdev);
+ nfp_net_vecs_init(nn);
- return register_netdev(netdev);
+ if (!nn->dp.netdev)
+ return 0;
+ return register_netdev(nn->dp.netdev);
}
/**
- * nfp_net_netdev_clean() - Undo what nfp_net_netdev_init() did.
- * @netdev: netdev structure
+ * nfp_net_clean() - Undo what nfp_net_init() did.
+ * @nn: NFP Net device structure
*/
-void nfp_net_netdev_clean(struct net_device *netdev)
+void nfp_net_clean(struct nfp_net *nn)
{
- struct nfp_net *nn = netdev_priv(netdev);
+ if (!nn->dp.netdev)
+ return;
unregister_netdev(nn->dp.netdev);
-
- if (nn->dp.xdp_prog)
- bpf_prog_put(nn->dp.xdp_prog);
- if (nn->dp.bpf_offload_xdp)
- nfp_net_xdp_offload(nn, NULL);
}
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h b/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h
index d04ccc9f6116..e5e94e0746ec 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h
@@ -71,6 +71,10 @@
#define NFP_NET_META_FIELD_SIZE 4
#define NFP_NET_META_HASH 1 /* next field carries hash type */
#define NFP_NET_META_MARK 2
+#define NFP_NET_META_PORTID 5
+#define NFP_NET_META_CSUM 6 /* checksum complete type */
+
+#define NFP_META_PORT_ID_CTRL ~0U
/**
* Hash type pre-pended when a RSS hash was computed
@@ -119,9 +123,10 @@
#define NFP_NET_CFG_CTRL_TXVLAN (0x1 << 7) /* Enable VLAN insert */
#define NFP_NET_CFG_CTRL_SCATTER (0x1 << 8) /* Scatter DMA */
#define NFP_NET_CFG_CTRL_GATHER (0x1 << 9) /* Gather DMA */
-#define NFP_NET_CFG_CTRL_LSO (0x1 << 10) /* LSO/TSO */
+#define NFP_NET_CFG_CTRL_LSO (0x1 << 10) /* LSO/TSO (version 1) */
+#define NFP_NET_CFG_CTRL_CTAG_FILTER (0x1 << 11) /* VLAN CTAG filtering */
#define NFP_NET_CFG_CTRL_RINGCFG (0x1 << 16) /* Ring runtime changes */
-#define NFP_NET_CFG_CTRL_RSS (0x1 << 17) /* RSS */
+#define NFP_NET_CFG_CTRL_RSS (0x1 << 17) /* RSS (version 1) */
#define NFP_NET_CFG_CTRL_IRQMOD (0x1 << 18) /* Interrupt moderation */
#define NFP_NET_CFG_CTRL_RINGPRIO (0x1 << 19) /* Ring priorities */
#define NFP_NET_CFG_CTRL_MSIXAUTO (0x1 << 20) /* MSI-X auto-masking */
@@ -131,6 +136,20 @@
#define NFP_NET_CFG_CTRL_VXLAN (0x1 << 24) /* VXLAN tunnel support */
#define NFP_NET_CFG_CTRL_NVGRE (0x1 << 25) /* NVGRE tunnel support */
#define NFP_NET_CFG_CTRL_BPF (0x1 << 27) /* BPF offload capable */
+#define NFP_NET_CFG_CTRL_LSO2 (0x1 << 28) /* LSO/TSO (version 2) */
+#define NFP_NET_CFG_CTRL_RSS2 (0x1 << 29) /* RSS (version 2) */
+#define NFP_NET_CFG_CTRL_CSUM_COMPLETE (0x1 << 30) /* Checksum complete */
+#define NFP_NET_CFG_CTRL_LIVE_ADDR (0x1 << 31) /* live MAC addr change */
+
+#define NFP_NET_CFG_CTRL_LSO_ANY (NFP_NET_CFG_CTRL_LSO | \
+ NFP_NET_CFG_CTRL_LSO2)
+#define NFP_NET_CFG_CTRL_RSS_ANY (NFP_NET_CFG_CTRL_RSS | \
+ NFP_NET_CFG_CTRL_RSS2)
+#define NFP_NET_CFG_CTRL_RXCSUM_ANY (NFP_NET_CFG_CTRL_RXCSUM | \
+ NFP_NET_CFG_CTRL_CSUM_COMPLETE)
+#define NFP_NET_CFG_CTRL_CHAIN_META (NFP_NET_CFG_CTRL_RSS2 | \
+ NFP_NET_CFG_CTRL_CSUM_COMPLETE)
+
#define NFP_NET_CFG_UPDATE 0x0004
#define NFP_NET_CFG_UPDATE_GEN (0x1 << 0) /* General update */
#define NFP_NET_CFG_UPDATE_RING (0x1 << 1) /* Ring config change */
@@ -143,6 +162,8 @@
#define NFP_NET_CFG_UPDATE_IRQMOD (0x1 << 8) /* IRQ mod change */
#define NFP_NET_CFG_UPDATE_VXLAN (0x1 << 9) /* VXLAN port change */
#define NFP_NET_CFG_UPDATE_BPF (0x1 << 10) /* BPF program load */
+#define NFP_NET_CFG_UPDATE_MACADDR (0x1 << 11) /* MAC address change */
+#define NFP_NET_CFG_UPDATE_MBOX (0x1 << 12) /* Mailbox update */
#define NFP_NET_CFG_UPDATE_ERR (0x1 << 31) /* A error occurred */
#define NFP_NET_CFG_TXRS_ENABLE 0x0008
#define NFP_NET_CFG_RXRS_ENABLE 0x0010
@@ -381,4 +402,29 @@
#define NFP_NET_CFG_RXR_STATS(_x) (NFP_NET_CFG_RXR_STATS_BASE + \
((_x) * 0x10))
+/**
+ * General use mailbox area (0x1800 - 0x19ff)
+ * 4B used for update command and 4B return code
+ * followed by a max of 504B of variable length value
+ */
+#define NFP_NET_CFG_MBOX_CMD 0x1800
+#define NFP_NET_CFG_MBOX_RET 0x1804
+#define NFP_NET_CFG_MBOX_VAL 0x1808
+#define NFP_NET_CFG_MBOX_VAL_MAX_SZ 0x1F8
+
+#define NFP_NET_CFG_MBOX_CMD_CTAG_FILTER_ADD 1
+#define NFP_NET_CFG_MBOX_CMD_CTAG_FILTER_KILL 2
+
+/**
+ * VLAN filtering using general use mailbox
+ * @NFP_NET_CFG_VLAN_FILTER: Base address of VLAN filter mailbox
+ * @NFP_NET_CFG_VLAN_FILTER_VID: VLAN ID to filter
+ * @NFP_NET_CFG_VLAN_FILTER_PROTO: VLAN proto to filter
+ * @NFP_NET_CFG_VXLAN_SZ: Size of the VLAN filter mailbox in bytes
+ */
+#define NFP_NET_CFG_VLAN_FILTER NFP_NET_CFG_MBOX_VAL
+#define NFP_NET_CFG_VLAN_FILTER_VID NFP_NET_CFG_VLAN_FILTER
+#define NFP_NET_CFG_VLAN_FILTER_PROTO (NFP_NET_CFG_VLAN_FILTER + 2)
+#define NFP_NET_CFG_VLAN_FILTER_SZ 0x0004
+
#endif /* _NFP_NET_CTRL_H_ */
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c b/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c
index 4077c59bf782..40217ece5fcb 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c
@@ -54,7 +54,7 @@ static int nfp_net_debugfs_rx_q_read(struct seq_file *file, void *data)
goto out;
nn = r_vec->nfp_net;
rx_ring = r_vec->rx_ring;
- if (!netif_running(nn->dp.netdev))
+ if (!nfp_net_running(nn))
goto out;
rxd_cnt = rx_ring->cnt;
@@ -62,7 +62,7 @@ static int nfp_net_debugfs_rx_q_read(struct seq_file *file, void *data)
fl_rd_p = nfp_qcp_rd_ptr_read(rx_ring->qcp_fl);
fl_wr_p = nfp_qcp_wr_ptr_read(rx_ring->qcp_fl);
- seq_printf(file, "RX[%02d,%02d]: cnt=%d dma=%pad host=%p H_RD=%d H_WR=%d FL_RD=%d FL_WR=%d\n",
+ seq_printf(file, "RX[%02d,%02d]: cnt=%u dma=%pad host=%p H_RD=%u H_WR=%u FL_RD=%u FL_WR=%u\n",
rx_ring->idx, rx_ring->fl_qcidx,
rx_ring->cnt, &rx_ring->dma, rx_ring->rxds,
rx_ring->rd_p, rx_ring->wr_p, fl_rd_p, fl_wr_p);
@@ -138,7 +138,7 @@ static int nfp_net_debugfs_tx_q_read(struct seq_file *file, void *data)
if (!r_vec->nfp_net || !tx_ring)
goto out;
nn = r_vec->nfp_net;
- if (!netif_running(nn->dp.netdev))
+ if (!nfp_net_running(nn))
goto out;
txd_cnt = tx_ring->cnt;
@@ -146,7 +146,7 @@ static int nfp_net_debugfs_tx_q_read(struct seq_file *file, void *data)
d_rd_p = nfp_qcp_rd_ptr_read(tx_ring->qcp_q);
d_wr_p = nfp_qcp_wr_ptr_read(tx_ring->qcp_q);
- seq_printf(file, "TX[%02d,%02d%s]: cnt=%d dma=%pad host=%p H_RD=%d H_WR=%d D_RD=%d D_WR=%d\n",
+ seq_printf(file, "TX[%02d,%02d%s]: cnt=%u dma=%pad host=%p H_RD=%u H_WR=%u D_RD=%u D_WR=%u\n",
tx_ring->idx, tx_ring->qcidx,
tx_ring == r_vec->tx_ring ? "" : "xdp",
tx_ring->cnt, &tx_ring->dma, tx_ring->txds,
@@ -200,7 +200,7 @@ static const struct file_operations nfp_xdp_q_fops = {
.llseek = seq_lseek
};
-void nfp_net_debugfs_port_add(struct nfp_net *nn, struct dentry *ddir, int id)
+void nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir, int id)
{
struct dentry *queues, *tx, *rx, *xdp;
char name[20];
@@ -209,7 +209,10 @@ void nfp_net_debugfs_port_add(struct nfp_net *nn, struct dentry *ddir, int id)
if (IS_ERR_OR_NULL(nfp_dir))
return;
- sprintf(name, "port%d", id);
+ if (nfp_net_is_data_vnic(nn))
+ sprintf(name, "vnic%d", id);
+ else
+ strcpy(name, "ctrl-vnic");
nn->debugfs_dir = debugfs_create_dir(name, ddir);
if (IS_ERR_OR_NULL(nn->debugfs_dir))
return;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
index abbb47e60cc3..6e31355c3567 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
@@ -50,8 +50,10 @@
#include "nfpcore/nfp.h"
#include "nfpcore/nfp_nsp.h"
+#include "nfp_app.h"
#include "nfp_net_ctrl.h"
#include "nfp_net.h"
+#include "nfp_port.h"
enum nfp_dump_diag {
NFP_DUMP_NSP_DIAG = 0,
@@ -134,14 +136,14 @@ static const struct _nfp_net_et_stats nfp_net_et_stats[] = {
#define NN_ET_STATS_LEN (NN_ET_GLOBAL_STATS_LEN + NN_ET_RVEC_GATHER_STATS + \
NN_ET_RVEC_STATS_LEN + NN_ET_QUEUE_STATS_LEN)
-static void nfp_net_get_nspinfo(struct nfp_net *nn, char *version)
+static void nfp_net_get_nspinfo(struct nfp_app *app, char *version)
{
struct nfp_nsp *nsp;
- if (!nn->cpp)
+ if (!app)
return;
- nsp = nfp_nsp_open(nn->cpp);
+ nsp = nfp_nsp_open(app->cpp);
if (IS_ERR(nsp))
return;
@@ -162,11 +164,12 @@ static void nfp_net_get_drvinfo(struct net_device *netdev,
sizeof(drvinfo->driver));
strlcpy(drvinfo->version, nfp_driver_version, sizeof(drvinfo->version));
- nfp_net_get_nspinfo(nn, nsp_version);
+ nfp_net_get_nspinfo(nn->app, nsp_version);
snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
- "%d.%d.%d.%d %s",
+ "%d.%d.%d.%d %s %s %s",
nn->fw_ver.resv, nn->fw_ver.class,
- nn->fw_ver.major, nn->fw_ver.minor, nsp_version);
+ nn->fw_ver.major, nn->fw_ver.minor, nsp_version,
+ nfp_app_mip_name(nn->app), nfp_app_name(nn->app));
strlcpy(drvinfo->bus_info, pci_name(nn->pdev),
sizeof(drvinfo->bus_info));
@@ -195,37 +198,38 @@ nfp_net_get_link_ksettings(struct net_device *netdev,
[NFP_NET_CFG_STS_LINK_RATE_50G] = SPEED_50000,
[NFP_NET_CFG_STS_LINK_RATE_100G] = SPEED_100000,
};
- struct nfp_net *nn = netdev_priv(netdev);
+ struct nfp_eth_table_port *eth_port;
+ struct nfp_port *port;
+ struct nfp_net *nn;
u32 sts, ls;
+ /* Init to unknowns */
ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
cmd->base.port = PORT_OTHER;
cmd->base.speed = SPEED_UNKNOWN;
cmd->base.duplex = DUPLEX_UNKNOWN;
- if (nn->eth_port)
- cmd->base.autoneg = nn->eth_port->aneg != NFP_ANEG_DISABLED ?
+ port = nfp_port_from_netdev(netdev);
+ eth_port = nfp_port_get_eth_port(port);
+ if (eth_port)
+ cmd->base.autoneg = eth_port->aneg != NFP_ANEG_DISABLED ?
AUTONEG_ENABLE : AUTONEG_DISABLE;
if (!netif_carrier_ok(netdev))
return 0;
/* Use link speed from ETH table if available, otherwise try the BAR */
- if (nn->eth_port) {
- int err;
-
- if (nfp_net_link_changed_read_clear(nn)) {
- err = nfp_net_refresh_eth_port(nn);
- if (err)
- return err;
- }
-
- cmd->base.port = nn->eth_port->port_type;
- cmd->base.speed = nn->eth_port->speed;
+ if (eth_port) {
+ cmd->base.port = eth_port->port_type;
+ cmd->base.speed = eth_port->speed;
cmd->base.duplex = DUPLEX_FULL;
return 0;
}
+ if (!nfp_netdev_is_nfp_net(netdev))
+ return -EOPNOTSUPP;
+ nn = netdev_priv(netdev);
+
sts = nn_readl(nn, NFP_NET_CFG_STS);
ls = FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts);
@@ -246,19 +250,22 @@ static int
nfp_net_set_link_ksettings(struct net_device *netdev,
const struct ethtool_link_ksettings *cmd)
{
- struct nfp_net *nn = netdev_priv(netdev);
+ struct nfp_eth_table_port *eth_port;
+ struct nfp_port *port;
struct nfp_nsp *nsp;
int err;
- if (!nn->eth_port)
+ port = nfp_port_from_netdev(netdev);
+ eth_port = __nfp_port_get_eth_port(port);
+ if (!eth_port)
return -EOPNOTSUPP;
if (netif_running(netdev)) {
- nn_warn(nn, "Changing settings not allowed on an active interface. It may cause the port to be disabled until reboot.\n");
+ netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until reboot.\n");
return -EBUSY;
}
- nsp = nfp_eth_config_start(nn->cpp, nn->eth_port->index);
+ nsp = nfp_eth_config_start(port->app->cpp, eth_port->index);
if (IS_ERR(nsp))
return PTR_ERR(nsp);
@@ -267,7 +274,7 @@ nfp_net_set_link_ksettings(struct net_device *netdev,
if (err)
goto err_bad_set;
if (cmd->base.speed != SPEED_UNKNOWN) {
- u32 speed = cmd->base.speed / nn->eth_port->lanes;
+ u32 speed = cmd->base.speed / eth_port->lanes;
err = __nfp_eth_set_speed(nsp, speed);
if (err)
@@ -278,7 +285,7 @@ nfp_net_set_link_ksettings(struct net_device *netdev,
if (err > 0)
return 0; /* no change */
- nfp_net_refresh_port_table(nn);
+ nfp_net_refresh_port_table(port);
return err;
@@ -496,7 +503,7 @@ static int nfp_net_get_rss_hash_opts(struct nfp_net *nn,
cmd->data = 0;
- if (!(nn->cap & NFP_NET_CFG_CTRL_RSS))
+ if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
return -EOPNOTSUPP;
nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type);
@@ -533,7 +540,7 @@ static int nfp_net_set_rss_hash_opt(struct nfp_net *nn,
u32 nfp_rss_flag;
int err;
- if (!(nn->cap & NFP_NET_CFG_CTRL_RSS))
+ if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
return -EOPNOTSUPP;
/* RSS only supports IP SA/DA and L4 src/dst ports */
@@ -595,7 +602,7 @@ static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev)
{
struct nfp_net *nn = netdev_priv(netdev);
- if (!(nn->cap & NFP_NET_CFG_CTRL_RSS))
+ if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
return 0;
return ARRAY_SIZE(nn->rss_itbl);
@@ -605,7 +612,7 @@ static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev)
{
struct nfp_net *nn = netdev_priv(netdev);
- if (!(nn->cap & NFP_NET_CFG_CTRL_RSS))
+ if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
return -EOPNOTSUPP;
return nfp_net_rss_key_sz(nn);
@@ -617,7 +624,7 @@ static int nfp_net_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
struct nfp_net *nn = netdev_priv(netdev);
int i;
- if (!(nn->cap & NFP_NET_CFG_CTRL_RSS))
+ if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
return -EOPNOTSUPP;
if (indir)
@@ -641,7 +648,7 @@ static int nfp_net_set_rxfh(struct net_device *netdev,
struct nfp_net *nn = netdev_priv(netdev);
int i;
- if (!(nn->cap & NFP_NET_CFG_CTRL_RSS) ||
+ if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) ||
!(hfunc == ETH_RSS_HASH_NO_CHANGE || hfunc == nn->rss_hfunc))
return -EOPNOTSUPP;
@@ -706,13 +713,13 @@ nfp_dump_nsp_diag(struct nfp_net *nn, struct ethtool_dump *dump, void *buffer)
struct nfp_resource *res;
int ret;
- if (!nn->cpp)
+ if (!nn->app)
return -EOPNOTSUPP;
dump->version = 1;
dump->flag = NFP_DUMP_NSP_DIAG;
- res = nfp_resource_acquire(nn->cpp, NFP_RESOURCE_NSP_DIAG);
+ res = nfp_resource_acquire(nn->app->cpp, NFP_RESOURCE_NSP_DIAG);
if (IS_ERR(res))
return PTR_ERR(res);
@@ -722,7 +729,7 @@ nfp_dump_nsp_diag(struct nfp_net *nn, struct ethtool_dump *dump, void *buffer)
goto exit_release;
}
- ret = nfp_cpp_read(nn->cpp, nfp_resource_cpp_id(res),
+ ret = nfp_cpp_read(nn->app->cpp, nfp_resource_cpp_id(res),
nfp_resource_address(res),
buffer, dump->len);
if (ret != dump->len)
@@ -743,7 +750,7 @@ static int nfp_net_set_dump(struct net_device *netdev, struct ethtool_dump *val)
{
struct nfp_net *nn = netdev_priv(netdev);
- if (!nn->cpp)
+ if (!nn->app)
return -EOPNOTSUPP;
if (val->flag != NFP_DUMP_NSP_DIAG)
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
index 8cb87cbe1120..5797dbf2b507 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
@@ -43,6 +43,7 @@
#include <linux/etherdevice.h>
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/lockdep.h>
#include <linux/pci.h>
#include <linux/pci_regs.h>
#include <linux/msi.h>
@@ -54,20 +55,21 @@
#include "nfpcore/nfp_nffw.h"
#include "nfpcore/nfp_nsp.h"
#include "nfpcore/nfp6000_pcie.h"
-
+#include "nfp_app.h"
#include "nfp_net_ctrl.h"
#include "nfp_net.h"
#include "nfp_main.h"
+#include "nfp_port.h"
#define NFP_PF_CSR_SLICE_SIZE (32 * 1024)
-static int nfp_is_ready(struct nfp_cpp *cpp)
+static int nfp_is_ready(struct nfp_pf *pf)
{
const char *cp;
long state;
int err;
- cp = nfp_hwinfo_lookup(cpp, "board.state");
+ cp = nfp_hwinfo_lookup(pf->hwinfo, "board.state");
if (!cp)
return 0;
@@ -79,375 +81,277 @@ static int nfp_is_ready(struct nfp_cpp *cpp)
}
/**
- * nfp_net_map_area() - Help function to map an area
- * @cpp: NFP CPP handler
- * @name: Name for the area
- * @target: CPP target
- * @addr: CPP address
- * @size: Size of the area
- * @area: Area handle (returned).
- *
- * This function is primarily to simplify the code in the main probe
- * function. To undo the effect of this functions call
- * @nfp_cpp_area_release_free(*area);
- *
- * Return: Pointer to memory mapped area or ERR_PTR
- */
-static u8 __iomem *nfp_net_map_area(struct nfp_cpp *cpp,
- const char *name, int isl, int target,
- unsigned long long addr, unsigned long size,
- struct nfp_cpp_area **area)
-{
- u8 __iomem *res;
- u32 dest;
- int err;
-
- dest = NFP_CPP_ISLAND_ID(target, NFP_CPP_ACTION_RW, 0, isl);
-
- *area = nfp_cpp_area_alloc_with_name(cpp, dest, name, addr, size);
- if (!*area) {
- err = -EIO;
- goto err_area;
- }
-
- err = nfp_cpp_area_acquire(*area);
- if (err < 0)
- goto err_acquire;
-
- res = nfp_cpp_area_iomem(*area);
- if (!res) {
- err = -EIO;
- goto err_map;
- }
-
- return res;
-
-err_map:
- nfp_cpp_area_release(*area);
-err_acquire:
- nfp_cpp_area_free(*area);
-err_area:
- return (u8 __iomem *)ERR_PTR(err);
-}
-
-/**
* nfp_net_get_mac_addr() - Get the MAC address.
- * @nn: NFP Network structure
- * @cpp: NFP CPP handle
- * @id: NFP port id
+ * @pf: NFP PF handle
+ * @port: NFP port structure
*
* First try to get the MAC address from NSP ETH table. If that
- * fails try HWInfo. As a last resort generate a random address.
+ * fails generate a random address.
*/
-static void
-nfp_net_get_mac_addr(struct nfp_net *nn, struct nfp_cpp *cpp, unsigned int id)
+void nfp_net_get_mac_addr(struct nfp_pf *pf, struct nfp_port *port)
{
- struct nfp_net_dp *dp = &nn->dp;
- u8 mac_addr[ETH_ALEN];
- const char *mac_str;
- char name[32];
-
- if (nn->eth_port) {
- ether_addr_copy(dp->netdev->dev_addr, nn->eth_port->mac_addr);
- ether_addr_copy(dp->netdev->perm_addr, nn->eth_port->mac_addr);
- return;
- }
-
- snprintf(name, sizeof(name), "eth%d.mac", id);
-
- mac_str = nfp_hwinfo_lookup(cpp, name);
- if (!mac_str) {
- dev_warn(dp->dev, "Can't lookup MAC address. Generate\n");
- eth_hw_addr_random(dp->netdev);
- return;
- }
+ struct nfp_eth_table_port *eth_port;
- if (sscanf(mac_str, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
- &mac_addr[0], &mac_addr[1], &mac_addr[2],
- &mac_addr[3], &mac_addr[4], &mac_addr[5]) != 6) {
- dev_warn(dp->dev,
- "Can't parse MAC address (%s). Generate.\n", mac_str);
- eth_hw_addr_random(dp->netdev);
+ eth_port = __nfp_port_get_eth_port(port);
+ if (!eth_port) {
+ eth_hw_addr_random(port->netdev);
return;
}
- ether_addr_copy(dp->netdev->dev_addr, mac_addr);
- ether_addr_copy(dp->netdev->perm_addr, mac_addr);
+ ether_addr_copy(port->netdev->dev_addr, eth_port->mac_addr);
+ ether_addr_copy(port->netdev->perm_addr, eth_port->mac_addr);
}
static struct nfp_eth_table_port *
-nfp_net_find_port(struct nfp_eth_table *eth_tbl, unsigned int id)
+nfp_net_find_port(struct nfp_eth_table *eth_tbl, unsigned int index)
{
int i;
for (i = 0; eth_tbl && i < eth_tbl->count; i++)
- if (eth_tbl->ports[i].eth_index == id)
+ if (eth_tbl->ports[i].index == index)
return &eth_tbl->ports[i];
return NULL;
}
-static unsigned int nfp_net_pf_get_num_ports(struct nfp_pf *pf)
+static int
+nfp_net_pf_rtsym_read_optional(struct nfp_pf *pf, const char *format,
+ unsigned int default_val)
{
char name[256];
- u16 interface;
- int pcie_pf;
int err = 0;
u64 val;
- interface = nfp_cpp_interface(pf->cpp);
- pcie_pf = NFP_CPP_INTERFACE_UNIT_of(interface);
-
- snprintf(name, sizeof(name), "nfd_cfg_pf%d_num_ports", pcie_pf);
+ snprintf(name, sizeof(name), format, nfp_cppcore_pcie_unit(pf->cpp));
- val = nfp_rtsym_read_le(pf->cpp, name, &err);
- /* Default to one port */
+ val = nfp_rtsym_read_le(pf->rtbl, name, &err);
if (err) {
- if (err != -ENOENT)
- nfp_err(pf->cpp, "Unable to read adapter port count\n");
- val = 1;
+ if (err == -ENOENT)
+ return default_val;
+ nfp_err(pf->cpp, "Unable to read symbol %s\n", name);
+ return err;
}
return val;
}
-static unsigned int
-nfp_net_pf_total_qcs(struct nfp_pf *pf, void __iomem *ctrl_bar,
- unsigned int stride, u32 start_off, u32 num_off)
+static int nfp_net_pf_get_num_ports(struct nfp_pf *pf)
{
- unsigned int i, min_qc, max_qc;
-
- min_qc = readl(ctrl_bar + start_off);
- max_qc = min_qc;
-
- for (i = 0; i < pf->num_ports; i++) {
- /* To make our lives simpler only accept configuration where
- * queues are allocated to PFs in order (queues of PFn all have
- * indexes lower than PFn+1).
- */
- if (max_qc > readl(ctrl_bar + start_off))
- return 0;
-
- max_qc = readl(ctrl_bar + start_off);
- max_qc += readl(ctrl_bar + num_off) * stride;
- ctrl_bar += NFP_PF_CSR_SLICE_SIZE;
- }
+ return nfp_net_pf_rtsym_read_optional(pf, "nfd_cfg_pf%u_num_ports", 1);
+}
- return max_qc - min_qc;
+static int nfp_net_pf_get_app_id(struct nfp_pf *pf)
+{
+ return nfp_net_pf_rtsym_read_optional(pf, "_pf%u_net_app_id",
+ NFP_APP_CORE_NIC);
}
-static u8 __iomem *nfp_net_pf_map_ctrl_bar(struct nfp_pf *pf)
+static u8 __iomem *
+nfp_net_pf_map_rtsym(struct nfp_pf *pf, const char *name, const char *sym_fmt,
+ unsigned int min_size, struct nfp_cpp_area **area)
{
- const struct nfp_rtsym *ctrl_sym;
- u8 __iomem *ctrl_bar;
char pf_symbol[256];
- u16 interface;
- int pcie_pf;
-
- interface = nfp_cpp_interface(pf->cpp);
- pcie_pf = NFP_CPP_INTERFACE_UNIT_of(interface);
-
- snprintf(pf_symbol, sizeof(pf_symbol), "_pf%d_net_bar0", pcie_pf);
-
- ctrl_sym = nfp_rtsym_lookup(pf->cpp, pf_symbol);
- if (!ctrl_sym) {
- dev_err(&pf->pdev->dev,
- "Failed to find PF BAR0 symbol %s\n", pf_symbol);
- return NULL;
- }
-
- if (ctrl_sym->size < pf->num_ports * NFP_PF_CSR_SLICE_SIZE) {
- dev_err(&pf->pdev->dev,
- "PF BAR0 too small to contain %d ports\n",
- pf->num_ports);
- return NULL;
- }
- ctrl_bar = nfp_net_map_area(pf->cpp, "net.ctrl",
- ctrl_sym->domain, ctrl_sym->target,
- ctrl_sym->addr, ctrl_sym->size,
- &pf->ctrl_area);
- if (IS_ERR(ctrl_bar)) {
- dev_err(&pf->pdev->dev, "Failed to map PF BAR0: %ld\n",
- PTR_ERR(ctrl_bar));
- return NULL;
- }
+ snprintf(pf_symbol, sizeof(pf_symbol), sym_fmt,
+ nfp_cppcore_pcie_unit(pf->cpp));
- return ctrl_bar;
+ return nfp_rtsym_map(pf->rtbl, pf_symbol, name, min_size, area);
}
-static void nfp_net_pf_free_netdevs(struct nfp_pf *pf)
+static void nfp_net_pf_free_vnic(struct nfp_pf *pf, struct nfp_net *nn)
{
- struct nfp_net *nn;
+ nfp_port_free(nn->port);
+ list_del(&nn->vnic_list);
+ pf->num_vnics--;
+ nfp_net_free(nn);
+}
- while (!list_empty(&pf->ports)) {
- nn = list_first_entry(&pf->ports, struct nfp_net, port_list);
- list_del(&nn->port_list);
- pf->num_netdevs--;
+static void nfp_net_pf_free_vnics(struct nfp_pf *pf)
+{
+ struct nfp_net *nn, *next;
- nfp_net_netdev_free(nn);
- }
+ list_for_each_entry_safe(nn, next, &pf->vnics, vnic_list)
+ if (nfp_net_is_data_vnic(nn))
+ nfp_net_pf_free_vnic(pf, nn);
}
static struct nfp_net *
-nfp_net_pf_alloc_port_netdev(struct nfp_pf *pf, void __iomem *ctrl_bar,
- void __iomem *tx_bar, void __iomem *rx_bar,
- int stride, struct nfp_net_fw_version *fw_ver,
- struct nfp_eth_table_port *eth_port)
+nfp_net_pf_alloc_vnic(struct nfp_pf *pf, bool needs_netdev,
+ void __iomem *ctrl_bar, void __iomem *qc_bar,
+ int stride, unsigned int id)
{
- u32 n_tx_rings, n_rx_rings;
+ u32 tx_base, rx_base, n_tx_rings, n_rx_rings;
struct nfp_net *nn;
+ int err;
+ tx_base = readl(ctrl_bar + NFP_NET_CFG_START_TXQ);
+ rx_base = readl(ctrl_bar + NFP_NET_CFG_START_RXQ);
n_tx_rings = readl(ctrl_bar + NFP_NET_CFG_MAX_TXRINGS);
n_rx_rings = readl(ctrl_bar + NFP_NET_CFG_MAX_RXRINGS);
- /* Allocate and initialise the netdev */
- nn = nfp_net_netdev_alloc(pf->pdev, n_tx_rings, n_rx_rings);
+ /* Allocate and initialise the vNIC */
+ nn = nfp_net_alloc(pf->pdev, needs_netdev, n_tx_rings, n_rx_rings);
if (IS_ERR(nn))
return nn;
- nn->cpp = pf->cpp;
- nn->fw_ver = *fw_ver;
+ nn->app = pf->app;
+ nfp_net_get_fw_version(&nn->fw_ver, ctrl_bar);
nn->dp.ctrl_bar = ctrl_bar;
- nn->tx_bar = tx_bar;
- nn->rx_bar = rx_bar;
+ nn->tx_bar = qc_bar + tx_base * NFP_QCP_QUEUE_ADDR_SZ;
+ nn->rx_bar = qc_bar + rx_base * NFP_QCP_QUEUE_ADDR_SZ;
nn->dp.is_vf = 0;
nn->stride_rx = stride;
nn->stride_tx = stride;
- nn->eth_port = eth_port;
+
+ if (needs_netdev) {
+ err = nfp_app_vnic_init(pf->app, nn, id);
+ if (err) {
+ nfp_net_free(nn);
+ return ERR_PTR(err);
+ }
+ }
+
+ pf->num_vnics++;
+ list_add_tail(&nn->vnic_list, &pf->vnics);
return nn;
}
static int
-nfp_net_pf_init_port_netdev(struct nfp_pf *pf, struct nfp_net *nn,
- unsigned int id)
+nfp_net_pf_init_vnic(struct nfp_pf *pf, struct nfp_net *nn, unsigned int id)
{
int err;
- /* Get MAC address */
- nfp_net_get_mac_addr(nn, pf->cpp, id);
-
/* Get ME clock frequency from ctrl BAR
* XXX for now frequency is hardcoded until we figure out how
* to get the value from nfp-hwinfo into ctrl bar
*/
nn->me_freq_mhz = 1200;
- err = nfp_net_netdev_init(nn->dp.netdev);
+ err = nfp_net_init(nn);
if (err)
return err;
- nfp_net_debugfs_port_add(nn, pf->ddir, id);
+ nfp_net_debugfs_vnic_add(nn, pf->ddir, id);
+
+ if (nn->port) {
+ err = nfp_devlink_port_register(pf->app, nn->port);
+ if (err)
+ goto err_dfs_clean;
+ }
nfp_net_info(nn);
return 0;
+
+err_dfs_clean:
+ nfp_net_debugfs_dir_clean(&nn->debugfs_dir);
+ nfp_net_clean(nn);
+ return err;
}
static int
-nfp_net_pf_alloc_netdevs(struct nfp_pf *pf, void __iomem *ctrl_bar,
- void __iomem *tx_bar, void __iomem *rx_bar,
- int stride, struct nfp_net_fw_version *fw_ver)
+nfp_net_pf_alloc_vnics(struct nfp_pf *pf, void __iomem *ctrl_bar,
+ void __iomem *qc_bar, int stride)
{
- u32 prev_tx_base, prev_rx_base, tgt_tx_base, tgt_rx_base;
- struct nfp_eth_table_port *eth_port;
struct nfp_net *nn;
unsigned int i;
int err;
- prev_tx_base = readl(ctrl_bar + NFP_NET_CFG_START_TXQ);
- prev_rx_base = readl(ctrl_bar + NFP_NET_CFG_START_RXQ);
-
- for (i = 0; i < pf->num_ports; i++) {
- tgt_tx_base = readl(ctrl_bar + NFP_NET_CFG_START_TXQ);
- tgt_rx_base = readl(ctrl_bar + NFP_NET_CFG_START_RXQ);
- tx_bar += (tgt_tx_base - prev_tx_base) * NFP_QCP_QUEUE_ADDR_SZ;
- rx_bar += (tgt_rx_base - prev_rx_base) * NFP_QCP_QUEUE_ADDR_SZ;
- prev_tx_base = tgt_tx_base;
- prev_rx_base = tgt_rx_base;
-
- eth_port = nfp_net_find_port(pf->eth_tbl, i);
- if (eth_port && eth_port->override_changed) {
- nfp_warn(pf->cpp, "Config changed for port #%d, reboot required before port will be operational\n", i);
- } else {
- nn = nfp_net_pf_alloc_port_netdev(pf, ctrl_bar, tx_bar,
- rx_bar, stride,
- fw_ver, eth_port);
- if (IS_ERR(nn)) {
- err = PTR_ERR(nn);
- goto err_free_prev;
- }
- list_add_tail(&nn->port_list, &pf->ports);
- pf->num_netdevs++;
+ for (i = 0; i < pf->max_data_vnics; i++) {
+ nn = nfp_net_pf_alloc_vnic(pf, true, ctrl_bar, qc_bar,
+ stride, i);
+ if (IS_ERR(nn)) {
+ err = PTR_ERR(nn);
+ goto err_free_prev;
}
ctrl_bar += NFP_PF_CSR_SLICE_SIZE;
+
+ /* Kill the vNIC if app init marked it as invalid */
+ if (nn->port && nn->port->type == NFP_PORT_INVALID) {
+ nfp_net_pf_free_vnic(pf, nn);
+ continue;
+ }
}
- if (list_empty(&pf->ports))
+ if (list_empty(&pf->vnics))
return -ENODEV;
return 0;
err_free_prev:
- nfp_net_pf_free_netdevs(pf);
+ nfp_net_pf_free_vnics(pf);
return err;
}
-static int
-nfp_net_pf_spawn_netdevs(struct nfp_pf *pf,
- void __iomem *ctrl_bar, void __iomem *tx_bar,
- void __iomem *rx_bar, int stride,
- struct nfp_net_fw_version *fw_ver)
+static void nfp_net_pf_clean_vnic(struct nfp_pf *pf, struct nfp_net *nn)
{
- unsigned int id, wanted_irqs, num_irqs, ports_left, irqs_left;
- struct nfp_net *nn;
- int err;
+ if (nn->port)
+ nfp_devlink_port_unregister(nn->port);
+ nfp_net_debugfs_dir_clean(&nn->debugfs_dir);
+ nfp_net_clean(nn);
+ nfp_app_vnic_clean(pf->app, nn);
+}
- /* Allocate the netdevs and do basic init */
- err = nfp_net_pf_alloc_netdevs(pf, ctrl_bar, tx_bar, rx_bar,
- stride, fw_ver);
- if (err)
- return err;
+static int nfp_net_pf_alloc_irqs(struct nfp_pf *pf)
+{
+ unsigned int wanted_irqs, num_irqs, vnics_left, irqs_left;
+ struct nfp_net *nn;
/* Get MSI-X vectors */
wanted_irqs = 0;
- list_for_each_entry(nn, &pf->ports, port_list)
+ list_for_each_entry(nn, &pf->vnics, vnic_list)
wanted_irqs += NFP_NET_NON_Q_VECTORS + nn->dp.num_r_vecs;
pf->irq_entries = kcalloc(wanted_irqs, sizeof(*pf->irq_entries),
GFP_KERNEL);
- if (!pf->irq_entries) {
- err = -ENOMEM;
- goto err_nn_free;
- }
+ if (!pf->irq_entries)
+ return -ENOMEM;
num_irqs = nfp_net_irqs_alloc(pf->pdev, pf->irq_entries,
- NFP_NET_MIN_PORT_IRQS * pf->num_netdevs,
+ NFP_NET_MIN_VNIC_IRQS * pf->num_vnics,
wanted_irqs);
if (!num_irqs) {
- nn_warn(nn, "Unable to allocate MSI-X Vectors. Exiting\n");
- err = -ENOMEM;
- goto err_vec_free;
+ nfp_warn(pf->cpp, "Unable to allocate MSI-X vectors\n");
+ kfree(pf->irq_entries);
+ return -ENOMEM;
}
- /* Distribute IRQs to ports */
+ /* Distribute IRQs to vNICs */
irqs_left = num_irqs;
- ports_left = pf->num_netdevs;
- list_for_each_entry(nn, &pf->ports, port_list) {
+ vnics_left = pf->num_vnics;
+ list_for_each_entry(nn, &pf->vnics, vnic_list) {
unsigned int n;
- n = DIV_ROUND_UP(irqs_left, ports_left);
+ n = min(NFP_NET_NON_Q_VECTORS + nn->dp.num_r_vecs,
+ DIV_ROUND_UP(irqs_left, vnics_left));
nfp_net_irqs_assign(nn, &pf->irq_entries[num_irqs - irqs_left],
n);
irqs_left -= n;
- ports_left--;
+ vnics_left--;
}
- /* Finish netdev init and register */
+ return 0;
+}
+
+static void nfp_net_pf_free_irqs(struct nfp_pf *pf)
+{
+ nfp_net_irqs_disable(pf->pdev);
+ kfree(pf->irq_entries);
+}
+
+static int nfp_net_pf_init_vnics(struct nfp_pf *pf)
+{
+ struct nfp_net *nn;
+ unsigned int id;
+ int err;
+
+ /* Finish vNIC init and register */
id = 0;
- list_for_each_entry(nn, &pf->ports, port_list) {
- err = nfp_net_pf_init_port_netdev(pf, nn, id);
+ list_for_each_entry(nn, &pf->vnics, vnic_list) {
+ if (!nfp_net_is_data_vnic(nn))
+ continue;
+ err = nfp_net_pf_init_vnic(pf, nn, id);
if (err)
goto err_prev_deinit;
@@ -457,118 +361,326 @@ nfp_net_pf_spawn_netdevs(struct nfp_pf *pf,
return 0;
err_prev_deinit:
- list_for_each_entry_continue_reverse(nn, &pf->ports, port_list) {
- nfp_net_debugfs_dir_clean(&nn->debugfs_dir);
- nfp_net_netdev_clean(nn->dp.netdev);
+ list_for_each_entry_continue_reverse(nn, &pf->vnics, vnic_list)
+ if (nfp_net_is_data_vnic(nn))
+ nfp_net_pf_clean_vnic(pf, nn);
+ return err;
+}
+
+static int
+nfp_net_pf_app_init(struct nfp_pf *pf, u8 __iomem *qc_bar, unsigned int stride)
+{
+ u8 __iomem *ctrl_bar;
+ int err;
+
+ pf->app = nfp_app_alloc(pf, nfp_net_pf_get_app_id(pf));
+ if (IS_ERR(pf->app))
+ return PTR_ERR(pf->app);
+
+ err = nfp_app_init(pf->app);
+ if (err)
+ goto err_free;
+
+ if (!nfp_app_needs_ctrl_vnic(pf->app))
+ return 0;
+
+ ctrl_bar = nfp_net_pf_map_rtsym(pf, "net.ctrl", "_pf%u_net_ctrl_bar",
+ NFP_PF_CSR_SLICE_SIZE,
+ &pf->ctrl_vnic_bar);
+ if (IS_ERR(ctrl_bar)) {
+ nfp_err(pf->cpp, "Failed to find data vNIC memory symbol\n");
+ err = PTR_ERR(ctrl_bar);
+ goto err_app_clean;
}
- nfp_net_irqs_disable(pf->pdev);
-err_vec_free:
- kfree(pf->irq_entries);
-err_nn_free:
- nfp_net_pf_free_netdevs(pf);
+
+ pf->ctrl_vnic = nfp_net_pf_alloc_vnic(pf, false, ctrl_bar, qc_bar,
+ stride, 0);
+ if (IS_ERR(pf->ctrl_vnic)) {
+ err = PTR_ERR(pf->ctrl_vnic);
+ goto err_unmap;
+ }
+
+ return 0;
+
+err_unmap:
+ nfp_cpp_area_release_free(pf->ctrl_vnic_bar);
+err_app_clean:
+ nfp_app_clean(pf->app);
+err_free:
+ nfp_app_free(pf->app);
+ pf->app = NULL;
+ return err;
+}
+
+static void nfp_net_pf_app_clean(struct nfp_pf *pf)
+{
+ if (pf->ctrl_vnic) {
+ nfp_net_pf_free_vnic(pf, pf->ctrl_vnic);
+ nfp_cpp_area_release_free(pf->ctrl_vnic_bar);
+ }
+ nfp_app_clean(pf->app);
+ nfp_app_free(pf->app);
+ pf->app = NULL;
+}
+
+static int nfp_net_pf_app_start_ctrl(struct nfp_pf *pf)
+{
+ int err;
+
+ if (!pf->ctrl_vnic)
+ return 0;
+ err = nfp_net_pf_init_vnic(pf, pf->ctrl_vnic, 0);
+ if (err)
+ return err;
+
+ err = nfp_ctrl_open(pf->ctrl_vnic);
+ if (err)
+ goto err_clean_ctrl;
+
+ return 0;
+
+err_clean_ctrl:
+ nfp_net_pf_clean_vnic(pf, pf->ctrl_vnic);
+ return err;
+}
+
+static void nfp_net_pf_app_stop_ctrl(struct nfp_pf *pf)
+{
+ if (!pf->ctrl_vnic)
+ return;
+ nfp_ctrl_close(pf->ctrl_vnic);
+ nfp_net_pf_clean_vnic(pf, pf->ctrl_vnic);
+}
+
+static int nfp_net_pf_app_start(struct nfp_pf *pf)
+{
+ int err;
+
+ err = nfp_net_pf_app_start_ctrl(pf);
+ if (err)
+ return err;
+
+ err = nfp_app_start(pf->app, pf->ctrl_vnic);
+ if (err)
+ goto err_ctrl_stop;
+
+ if (pf->num_vfs) {
+ err = nfp_app_sriov_enable(pf->app, pf->num_vfs);
+ if (err)
+ goto err_app_stop;
+ }
+
+ return 0;
+
+err_app_stop:
+ nfp_app_stop(pf->app);
+err_ctrl_stop:
+ nfp_net_pf_app_stop_ctrl(pf);
+ return err;
+}
+
+static void nfp_net_pf_app_stop(struct nfp_pf *pf)
+{
+ if (pf->num_vfs)
+ nfp_app_sriov_disable(pf->app);
+ nfp_app_stop(pf->app);
+ nfp_net_pf_app_stop_ctrl(pf);
+}
+
+static void nfp_net_pci_unmap_mem(struct nfp_pf *pf)
+{
+ if (pf->vf_cfg_bar)
+ nfp_cpp_area_release_free(pf->vf_cfg_bar);
+ if (pf->mac_stats_bar)
+ nfp_cpp_area_release_free(pf->mac_stats_bar);
+ nfp_cpp_area_release_free(pf->qc_area);
+ nfp_cpp_area_release_free(pf->data_vnic_bar);
+}
+
+static int nfp_net_pci_map_mem(struct nfp_pf *pf)
+{
+ u8 __iomem *mem;
+ u32 min_size;
+ int err;
+
+ min_size = pf->max_data_vnics * NFP_PF_CSR_SLICE_SIZE;
+ mem = nfp_net_pf_map_rtsym(pf, "net.ctrl", "_pf%d_net_bar0",
+ min_size, &pf->data_vnic_bar);
+ if (IS_ERR(mem)) {
+ nfp_err(pf->cpp, "Failed to find data vNIC memory symbol\n");
+ return PTR_ERR(mem);
+ }
+
+ min_size = NFP_MAC_STATS_SIZE * (pf->eth_tbl->max_index + 1);
+ pf->mac_stats_mem = nfp_rtsym_map(pf->rtbl, "_mac_stats",
+ "net.macstats", min_size,
+ &pf->mac_stats_bar);
+ if (IS_ERR(pf->mac_stats_mem)) {
+ if (PTR_ERR(pf->mac_stats_mem) != -ENOENT) {
+ err = PTR_ERR(pf->mac_stats_mem);
+ goto err_unmap_ctrl;
+ }
+ pf->mac_stats_mem = NULL;
+ }
+
+ pf->vf_cfg_mem = nfp_net_pf_map_rtsym(pf, "net.vfcfg",
+ "_pf%d_net_vf_bar",
+ NFP_NET_CFG_BAR_SZ *
+ pf->limit_vfs, &pf->vf_cfg_bar);
+ if (IS_ERR(pf->vf_cfg_mem)) {
+ if (PTR_ERR(pf->vf_cfg_mem) != -ENOENT) {
+ err = PTR_ERR(pf->vf_cfg_mem);
+ goto err_unmap_mac_stats;
+ }
+ pf->vf_cfg_mem = NULL;
+ }
+
+ mem = nfp_cpp_map_area(pf->cpp, "net.qc", 0, 0,
+ NFP_PCIE_QUEUE(0), NFP_QCP_QUEUE_AREA_SZ,
+ &pf->qc_area);
+ if (IS_ERR(mem)) {
+ nfp_err(pf->cpp, "Failed to map Queue Controller area.\n");
+ err = PTR_ERR(mem);
+ goto err_unmap_vf_cfg;
+ }
+
+ return 0;
+
+err_unmap_vf_cfg:
+ if (pf->vf_cfg_bar)
+ nfp_cpp_area_release_free(pf->vf_cfg_bar);
+err_unmap_mac_stats:
+ if (pf->mac_stats_bar)
+ nfp_cpp_area_release_free(pf->mac_stats_bar);
+err_unmap_ctrl:
+ nfp_cpp_area_release_free(pf->data_vnic_bar);
return err;
}
static void nfp_net_pci_remove_finish(struct nfp_pf *pf)
{
+ nfp_net_pf_app_stop(pf);
+ /* stop app first, to avoid double free of ctrl vNIC's ddir */
nfp_net_debugfs_dir_clean(&pf->ddir);
- nfp_net_irqs_disable(pf->pdev);
- kfree(pf->irq_entries);
+ nfp_net_pf_free_irqs(pf);
+ nfp_net_pf_app_clean(pf);
+ nfp_net_pci_unmap_mem(pf);
+}
- nfp_cpp_area_release_free(pf->rx_area);
- nfp_cpp_area_release_free(pf->tx_area);
- nfp_cpp_area_release_free(pf->ctrl_area);
+static int
+nfp_net_eth_port_update(struct nfp_cpp *cpp, struct nfp_port *port,
+ struct nfp_eth_table *eth_table)
+{
+ struct nfp_eth_table_port *eth_port;
+
+ ASSERT_RTNL();
+
+ eth_port = nfp_net_find_port(eth_table, port->eth_id);
+ if (!eth_port) {
+ set_bit(NFP_PORT_CHANGED, &port->flags);
+ nfp_warn(cpp, "Warning: port #%d not present after reconfig\n",
+ port->eth_id);
+ return -EIO;
+ }
+ if (eth_port->override_changed) {
+ nfp_warn(cpp, "Port #%d config changed, unregistering. Reboot required before port will be operational again.\n", port->eth_id);
+ port->type = NFP_PORT_INVALID;
+ }
+
+ memcpy(port->eth_port, eth_port, sizeof(*eth_port));
+
+ return 0;
}
-static void nfp_net_refresh_netdevs(struct work_struct *work)
+int nfp_net_refresh_port_table_sync(struct nfp_pf *pf)
{
- struct nfp_pf *pf = container_of(work, struct nfp_pf,
- port_refresh_work);
struct nfp_eth_table *eth_table;
struct nfp_net *nn, *next;
+ struct nfp_port *port;
- mutex_lock(&pf->port_lock);
+ lockdep_assert_held(&pf->lock);
/* Check for nfp_net_pci_remove() racing against us */
- if (list_empty(&pf->ports))
- goto out;
+ if (list_empty(&pf->vnics))
+ return 0;
- list_for_each_entry(nn, &pf->ports, port_list)
- nfp_net_link_changed_read_clear(nn);
+ /* Update state of all ports */
+ rtnl_lock();
+ list_for_each_entry(port, &pf->ports, port_list)
+ clear_bit(NFP_PORT_CHANGED, &port->flags);
eth_table = nfp_eth_read_ports(pf->cpp);
if (!eth_table) {
+ list_for_each_entry(port, &pf->ports, port_list)
+ if (__nfp_port_get_eth_port(port))
+ set_bit(NFP_PORT_CHANGED, &port->flags);
+ rtnl_unlock();
nfp_err(pf->cpp, "Error refreshing port config!\n");
- goto out;
+ return -EIO;
}
- rtnl_lock();
- list_for_each_entry(nn, &pf->ports, port_list) {
- if (!nn->eth_port)
- continue;
- nn->eth_port = nfp_net_find_port(eth_table,
- nn->eth_port->eth_index);
- }
+ list_for_each_entry(port, &pf->ports, port_list)
+ if (__nfp_port_get_eth_port(port))
+ nfp_net_eth_port_update(pf->cpp, port, eth_table);
rtnl_unlock();
- kfree(pf->eth_tbl);
- pf->eth_tbl = eth_table;
+ kfree(eth_table);
- list_for_each_entry_safe(nn, next, &pf->ports, port_list) {
- if (!nn->eth_port) {
- nfp_warn(pf->cpp, "Warning: port not present after reconfig\n");
- continue;
- }
- if (!nn->eth_port->override_changed)
+ /* Shoot off the ports which became invalid */
+ list_for_each_entry_safe(nn, next, &pf->vnics, vnic_list) {
+ if (!nn->port || nn->port->type != NFP_PORT_INVALID)
continue;
- nn_warn(nn, "Port config changed, unregistering. Reboot required before port will be operational again.\n");
-
- nfp_net_debugfs_dir_clean(&nn->debugfs_dir);
- nfp_net_netdev_clean(nn->dp.netdev);
-
- list_del(&nn->port_list);
- pf->num_netdevs--;
- nfp_net_netdev_free(nn);
+ nfp_net_pf_clean_vnic(pf, nn);
+ nfp_net_pf_free_vnic(pf, nn);
}
- if (list_empty(&pf->ports))
+ if (list_empty(&pf->vnics))
nfp_net_pci_remove_finish(pf);
-out:
- mutex_unlock(&pf->port_lock);
+
+ return 0;
}
-void nfp_net_refresh_port_table(struct nfp_net *nn)
+static void nfp_net_refresh_vnics(struct work_struct *work)
{
- struct nfp_pf *pf = pci_get_drvdata(nn->pdev);
+ struct nfp_pf *pf = container_of(work, struct nfp_pf,
+ port_refresh_work);
- schedule_work(&pf->port_refresh_work);
+ mutex_lock(&pf->lock);
+ nfp_net_refresh_port_table_sync(pf);
+ mutex_unlock(&pf->lock);
}
-int nfp_net_refresh_eth_port(struct nfp_net *nn)
+void nfp_net_refresh_port_table(struct nfp_port *port)
{
- struct nfp_eth_table_port *eth_port;
+ struct nfp_pf *pf = port->app->pf;
+
+ set_bit(NFP_PORT_CHANGED, &port->flags);
+
+ queue_work(pf->wq, &pf->port_refresh_work);
+}
+
+int nfp_net_refresh_eth_port(struct nfp_port *port)
+{
+ struct nfp_cpp *cpp = port->app->cpp;
struct nfp_eth_table *eth_table;
+ int ret;
- eth_table = nfp_eth_read_ports(nn->cpp);
- if (!eth_table) {
- nn_err(nn, "Error refreshing port state table!\n");
- return -EIO;
- }
+ clear_bit(NFP_PORT_CHANGED, &port->flags);
- eth_port = nfp_net_find_port(eth_table, nn->eth_port->eth_index);
- if (!eth_port) {
- nn_err(nn, "Error finding state of the port!\n");
- kfree(eth_table);
+ eth_table = nfp_eth_read_ports(cpp);
+ if (!eth_table) {
+ set_bit(NFP_PORT_CHANGED, &port->flags);
+ nfp_err(cpp, "Error refreshing port state table!\n");
return -EIO;
}
- memcpy(nn->eth_port, eth_port, sizeof(*eth_port));
+ ret = nfp_net_eth_port_update(cpp, port, eth_table);
kfree(eth_table);
- return 0;
+ return ret;
}
/*
@@ -576,38 +688,49 @@ int nfp_net_refresh_eth_port(struct nfp_net *nn)
*/
int nfp_net_pci_probe(struct nfp_pf *pf)
{
- u8 __iomem *ctrl_bar, *tx_bar, *rx_bar;
- u32 total_tx_qcs, total_rx_qcs;
struct nfp_net_fw_version fw_ver;
- u32 tx_area_sz, rx_area_sz;
- u32 start_q;
+ u8 __iomem *ctrl_bar, *qc_bar;
int stride;
int err;
- INIT_WORK(&pf->port_refresh_work, nfp_net_refresh_netdevs);
- mutex_init(&pf->port_lock);
+ INIT_WORK(&pf->port_refresh_work, nfp_net_refresh_vnics);
/* Verify that the board has completed initialization */
- if (!nfp_is_ready(pf->cpp)) {
+ if (!nfp_is_ready(pf)) {
nfp_err(pf->cpp, "NFP is not ready for NIC operation.\n");
return -EINVAL;
}
- mutex_lock(&pf->port_lock);
- pf->num_ports = nfp_net_pf_get_num_ports(pf);
+ if (!pf->rtbl) {
+ nfp_err(pf->cpp, "No %s, giving up.\n",
+ pf->fw_loaded ? "symbol table" : "firmware found");
+ return -EPROBE_DEFER;
+ }
- ctrl_bar = nfp_net_pf_map_ctrl_bar(pf);
- if (!ctrl_bar) {
- err = pf->fw_loaded ? -EINVAL : -EPROBE_DEFER;
+ mutex_lock(&pf->lock);
+ pf->max_data_vnics = nfp_net_pf_get_num_ports(pf);
+ if ((int)pf->max_data_vnics < 0) {
+ err = pf->max_data_vnics;
goto err_unlock;
}
+ err = nfp_net_pci_map_mem(pf);
+ if (err)
+ goto err_unlock;
+
+ ctrl_bar = nfp_cpp_area_iomem(pf->data_vnic_bar);
+ qc_bar = nfp_cpp_area_iomem(pf->qc_area);
+ if (!ctrl_bar || !qc_bar) {
+ err = -EIO;
+ goto err_unmap;
+ }
+
nfp_net_get_fw_version(&fw_ver, ctrl_bar);
if (fw_ver.resv || fw_ver.class != NFP_NET_CFG_VERSION_CLASS_GENERIC) {
nfp_err(pf->cpp, "Unknown Firmware ABI %d.%d.%d.%d\n",
fw_ver.resv, fw_ver.class, fw_ver.major, fw_ver.minor);
err = -EINVAL;
- goto err_ctrl_unmap;
+ goto err_unmap;
}
/* Determine stride */
@@ -616,7 +739,7 @@ int nfp_net_pci_probe(struct nfp_pf *pf)
nfp_warn(pf->cpp, "OBSOLETE Firmware detected - VF isolation not available\n");
} else {
switch (fw_ver.major) {
- case 1 ... 4:
+ case 1 ... 5:
stride = 4;
break;
default:
@@ -624,69 +747,51 @@ int nfp_net_pci_probe(struct nfp_pf *pf)
fw_ver.resv, fw_ver.class,
fw_ver.major, fw_ver.minor);
err = -EINVAL;
- goto err_ctrl_unmap;
+ goto err_unmap;
}
}
- /* Find how many QC structs need to be mapped */
- total_tx_qcs = nfp_net_pf_total_qcs(pf, ctrl_bar, stride,
- NFP_NET_CFG_START_TXQ,
- NFP_NET_CFG_MAX_TXRINGS);
- total_rx_qcs = nfp_net_pf_total_qcs(pf, ctrl_bar, stride,
- NFP_NET_CFG_START_RXQ,
- NFP_NET_CFG_MAX_RXRINGS);
- if (!total_tx_qcs || !total_rx_qcs) {
- nfp_err(pf->cpp, "Invalid PF QC configuration [%d,%d]\n",
- total_tx_qcs, total_rx_qcs);
- err = -EINVAL;
- goto err_ctrl_unmap;
- }
-
- tx_area_sz = NFP_QCP_QUEUE_ADDR_SZ * total_tx_qcs;
- rx_area_sz = NFP_QCP_QUEUE_ADDR_SZ * total_rx_qcs;
-
- /* Map TX queues */
- start_q = readl(ctrl_bar + NFP_NET_CFG_START_TXQ);
- tx_bar = nfp_net_map_area(pf->cpp, "net.tx", 0, 0,
- NFP_PCIE_QUEUE(start_q),
- tx_area_sz, &pf->tx_area);
- if (IS_ERR(tx_bar)) {
- nfp_err(pf->cpp, "Failed to map TX area.\n");
- err = PTR_ERR(tx_bar);
- goto err_ctrl_unmap;
- }
-
- /* Map RX queues */
- start_q = readl(ctrl_bar + NFP_NET_CFG_START_RXQ);
- rx_bar = nfp_net_map_area(pf->cpp, "net.rx", 0, 0,
- NFP_PCIE_QUEUE(start_q),
- rx_area_sz, &pf->rx_area);
- if (IS_ERR(rx_bar)) {
- nfp_err(pf->cpp, "Failed to map RX area.\n");
- err = PTR_ERR(rx_bar);
- goto err_unmap_tx;
- }
+ err = nfp_net_pf_app_init(pf, qc_bar, stride);
+ if (err)
+ goto err_unmap;
pf->ddir = nfp_net_debugfs_device_add(pf->pdev);
- err = nfp_net_pf_spawn_netdevs(pf, ctrl_bar, tx_bar, rx_bar,
- stride, &fw_ver);
+ /* Allocate the vnics and do basic init */
+ err = nfp_net_pf_alloc_vnics(pf, ctrl_bar, qc_bar, stride);
if (err)
goto err_clean_ddir;
- mutex_unlock(&pf->port_lock);
+ err = nfp_net_pf_alloc_irqs(pf);
+ if (err)
+ goto err_free_vnics;
+
+ err = nfp_net_pf_app_start(pf);
+ if (err)
+ goto err_free_irqs;
+
+ err = nfp_net_pf_init_vnics(pf);
+ if (err)
+ goto err_stop_app;
+
+ mutex_unlock(&pf->lock);
return 0;
+err_stop_app:
+ nfp_net_pf_app_stop(pf);
+err_free_irqs:
+ nfp_net_pf_free_irqs(pf);
+err_free_vnics:
+ nfp_net_pf_free_vnics(pf);
err_clean_ddir:
nfp_net_debugfs_dir_clean(&pf->ddir);
- nfp_cpp_area_release_free(pf->rx_area);
-err_unmap_tx:
- nfp_cpp_area_release_free(pf->tx_area);
-err_ctrl_unmap:
- nfp_cpp_area_release_free(pf->ctrl_area);
+ nfp_net_pf_app_clean(pf);
+err_unmap:
+ nfp_net_pci_unmap_mem(pf);
err_unlock:
- mutex_unlock(&pf->port_lock);
+ mutex_unlock(&pf->lock);
+ cancel_work_sync(&pf->port_refresh_work);
return err;
}
@@ -694,21 +799,19 @@ void nfp_net_pci_remove(struct nfp_pf *pf)
{
struct nfp_net *nn;
- mutex_lock(&pf->port_lock);
- if (list_empty(&pf->ports))
+ mutex_lock(&pf->lock);
+ if (list_empty(&pf->vnics))
goto out;
- list_for_each_entry(nn, &pf->ports, port_list) {
- nfp_net_debugfs_dir_clean(&nn->debugfs_dir);
-
- nfp_net_netdev_clean(nn->dp.netdev);
- }
+ list_for_each_entry(nn, &pf->vnics, vnic_list)
+ if (nfp_net_is_data_vnic(nn))
+ nfp_net_pf_clean_vnic(pf, nn);
- nfp_net_pf_free_netdevs(pf);
+ nfp_net_pf_free_vnics(pf);
nfp_net_pci_remove_finish(pf);
out:
- mutex_unlock(&pf->port_lock);
+ mutex_unlock(&pf->lock);
cancel_work_sync(&pf->port_refresh_work);
}
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c
new file mode 100644
index 000000000000..8ec5474f4b18
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c
@@ -0,0 +1,396 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/io-64-nonatomic-hi-lo.h>
+#include <linux/lockdep.h>
+#include <net/dst_metadata.h>
+#include <net/switchdev.h>
+
+#include "nfpcore/nfp_cpp.h"
+#include "nfpcore/nfp_nsp.h"
+#include "nfp_app.h"
+#include "nfp_main.h"
+#include "nfp_net_ctrl.h"
+#include "nfp_net_repr.h"
+#include "nfp_port.h"
+
+static void
+nfp_repr_inc_tx_stats(struct net_device *netdev, unsigned int len,
+ int tx_status)
+{
+ struct nfp_repr *repr = netdev_priv(netdev);
+ struct nfp_repr_pcpu_stats *stats;
+
+ if (unlikely(tx_status != NET_XMIT_SUCCESS &&
+ tx_status != NET_XMIT_CN)) {
+ this_cpu_inc(repr->stats->tx_drops);
+ return;
+ }
+
+ stats = this_cpu_ptr(repr->stats);
+ u64_stats_update_begin(&stats->syncp);
+ stats->tx_packets++;
+ stats->tx_bytes += len;
+ u64_stats_update_end(&stats->syncp);
+}
+
+void nfp_repr_inc_rx_stats(struct net_device *netdev, unsigned int len)
+{
+ struct nfp_repr *repr = netdev_priv(netdev);
+ struct nfp_repr_pcpu_stats *stats;
+
+ stats = this_cpu_ptr(repr->stats);
+ u64_stats_update_begin(&stats->syncp);
+ stats->rx_packets++;
+ stats->rx_bytes += len;
+ u64_stats_update_end(&stats->syncp);
+}
+
+static void
+nfp_repr_phy_port_get_stats64(const struct nfp_app *app, u8 phy_port,
+ struct rtnl_link_stats64 *stats)
+{
+ u8 __iomem *mem;
+
+ mem = app->pf->mac_stats_mem + phy_port * NFP_MAC_STATS_SIZE;
+
+ /* TX and RX stats are flipped as we are returning the stats as seen
+ * at the switch port corresponding to the phys port.
+ */
+ stats->tx_packets = readq(mem + NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK);
+ stats->tx_bytes = readq(mem + NFP_MAC_STATS_RX_IN_OCTETS);
+ stats->tx_dropped = readq(mem + NFP_MAC_STATS_RX_IN_ERRORS);
+
+ stats->rx_packets = readq(mem + NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK);
+ stats->rx_bytes = readq(mem + NFP_MAC_STATS_TX_OUT_OCTETS);
+ stats->rx_dropped = readq(mem + NFP_MAC_STATS_TX_OUT_ERRORS);
+}
+
+static void
+nfp_repr_vf_get_stats64(const struct nfp_app *app, u8 vf,
+ struct rtnl_link_stats64 *stats)
+{
+ u8 __iomem *mem;
+
+ mem = app->pf->vf_cfg_mem + vf * NFP_NET_CFG_BAR_SZ;
+
+ /* TX and RX stats are flipped as we are returning the stats as seen
+ * at the switch port corresponding to the VF.
+ */
+ stats->tx_packets = readq(mem + NFP_NET_CFG_STATS_RX_FRAMES);
+ stats->tx_bytes = readq(mem + NFP_NET_CFG_STATS_RX_OCTETS);
+ stats->tx_dropped = readq(mem + NFP_NET_CFG_STATS_RX_DISCARDS);
+
+ stats->rx_packets = readq(mem + NFP_NET_CFG_STATS_TX_FRAMES);
+ stats->rx_bytes = readq(mem + NFP_NET_CFG_STATS_TX_OCTETS);
+ stats->rx_dropped = readq(mem + NFP_NET_CFG_STATS_TX_DISCARDS);
+}
+
+static void
+nfp_repr_pf_get_stats64(const struct nfp_app *app, u8 pf,
+ struct rtnl_link_stats64 *stats)
+{
+ u8 __iomem *mem;
+
+ if (pf)
+ return;
+
+ mem = nfp_cpp_area_iomem(app->pf->data_vnic_bar);
+
+ stats->tx_packets = readq(mem + NFP_NET_CFG_STATS_RX_FRAMES);
+ stats->tx_bytes = readq(mem + NFP_NET_CFG_STATS_RX_OCTETS);
+ stats->tx_dropped = readq(mem + NFP_NET_CFG_STATS_RX_DISCARDS);
+
+ stats->rx_packets = readq(mem + NFP_NET_CFG_STATS_TX_FRAMES);
+ stats->rx_bytes = readq(mem + NFP_NET_CFG_STATS_TX_OCTETS);
+ stats->rx_dropped = readq(mem + NFP_NET_CFG_STATS_TX_DISCARDS);
+}
+
+static void
+nfp_repr_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
+{
+ struct nfp_repr *repr = netdev_priv(netdev);
+ struct nfp_eth_table_port *eth_port;
+ struct nfp_app *app = repr->app;
+
+ if (WARN_ON(!repr->port))
+ return;
+
+ switch (repr->port->type) {
+ case NFP_PORT_PHYS_PORT:
+ eth_port = __nfp_port_get_eth_port(repr->port);
+ if (!eth_port)
+ break;
+ nfp_repr_phy_port_get_stats64(app, eth_port->index, stats);
+ break;
+ case NFP_PORT_PF_PORT:
+ nfp_repr_pf_get_stats64(app, repr->port->pf_id, stats);
+ break;
+ case NFP_PORT_VF_PORT:
+ nfp_repr_vf_get_stats64(app, repr->port->vf_id, stats);
+ default:
+ break;
+ }
+}
+
+static bool
+nfp_repr_has_offload_stats(const struct net_device *dev, int attr_id)
+{
+ switch (attr_id) {
+ case IFLA_OFFLOAD_XSTATS_CPU_HIT:
+ return true;
+ }
+
+ return false;
+}
+
+static int
+nfp_repr_get_host_stats64(const struct net_device *netdev,
+ struct rtnl_link_stats64 *stats)
+{
+ struct nfp_repr *repr = netdev_priv(netdev);
+ int i;
+
+ for_each_possible_cpu(i) {
+ u64 tbytes, tpkts, tdrops, rbytes, rpkts;
+ struct nfp_repr_pcpu_stats *repr_stats;
+ unsigned int start;
+
+ repr_stats = per_cpu_ptr(repr->stats, i);
+ do {
+ start = u64_stats_fetch_begin_irq(&repr_stats->syncp);
+ tbytes = repr_stats->tx_bytes;
+ tpkts = repr_stats->tx_packets;
+ tdrops = repr_stats->tx_drops;
+ rbytes = repr_stats->rx_bytes;
+ rpkts = repr_stats->rx_packets;
+ } while (u64_stats_fetch_retry_irq(&repr_stats->syncp, start));
+
+ stats->tx_bytes += tbytes;
+ stats->tx_packets += tpkts;
+ stats->tx_dropped += tdrops;
+ stats->rx_bytes += rbytes;
+ stats->rx_packets += rpkts;
+ }
+
+ return 0;
+}
+
+static int
+nfp_repr_get_offload_stats(int attr_id, const struct net_device *dev,
+ void *stats)
+{
+ switch (attr_id) {
+ case IFLA_OFFLOAD_XSTATS_CPU_HIT:
+ return nfp_repr_get_host_stats64(dev, stats);
+ }
+
+ return -EINVAL;
+}
+
+static netdev_tx_t nfp_repr_xmit(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct nfp_repr *repr = netdev_priv(netdev);
+ unsigned int len = skb->len;
+ int ret;
+
+ skb_dst_drop(skb);
+ dst_hold((struct dst_entry *)repr->dst);
+ skb_dst_set(skb, (struct dst_entry *)repr->dst);
+ skb->dev = repr->dst->u.port_info.lower_dev;
+
+ ret = dev_queue_xmit(skb);
+ nfp_repr_inc_tx_stats(netdev, len, ret);
+
+ return ret;
+}
+
+static int nfp_repr_stop(struct net_device *netdev)
+{
+ struct nfp_repr *repr = netdev_priv(netdev);
+
+ return nfp_app_repr_stop(repr->app, repr);
+}
+
+static int nfp_repr_open(struct net_device *netdev)
+{
+ struct nfp_repr *repr = netdev_priv(netdev);
+
+ return nfp_app_repr_open(repr->app, repr);
+}
+
+const struct net_device_ops nfp_repr_netdev_ops = {
+ .ndo_open = nfp_repr_open,
+ .ndo_stop = nfp_repr_stop,
+ .ndo_start_xmit = nfp_repr_xmit,
+ .ndo_get_stats64 = nfp_repr_get_stats64,
+ .ndo_has_offload_stats = nfp_repr_has_offload_stats,
+ .ndo_get_offload_stats = nfp_repr_get_offload_stats,
+ .ndo_get_phys_port_name = nfp_port_get_phys_port_name,
+ .ndo_setup_tc = nfp_port_setup_tc,
+};
+
+static void nfp_repr_clean(struct nfp_repr *repr)
+{
+ unregister_netdev(repr->netdev);
+ dst_release((struct dst_entry *)repr->dst);
+ nfp_port_free(repr->port);
+}
+
+static struct lock_class_key nfp_repr_netdev_xmit_lock_key;
+static struct lock_class_key nfp_repr_netdev_addr_lock_key;
+
+static void nfp_repr_set_lockdep_class_one(struct net_device *dev,
+ struct netdev_queue *txq,
+ void *_unused)
+{
+ lockdep_set_class(&txq->_xmit_lock, &nfp_repr_netdev_xmit_lock_key);
+}
+
+static void nfp_repr_set_lockdep_class(struct net_device *dev)
+{
+ lockdep_set_class(&dev->addr_list_lock, &nfp_repr_netdev_addr_lock_key);
+ netdev_for_each_tx_queue(dev, nfp_repr_set_lockdep_class_one, NULL);
+}
+
+int nfp_repr_init(struct nfp_app *app, struct net_device *netdev,
+ u32 cmsg_port_id, struct nfp_port *port,
+ struct net_device *pf_netdev)
+{
+ struct nfp_repr *repr = netdev_priv(netdev);
+ int err;
+
+ nfp_repr_set_lockdep_class(netdev);
+
+ repr->port = port;
+ repr->dst = metadata_dst_alloc(0, METADATA_HW_PORT_MUX, GFP_KERNEL);
+ if (!repr->dst)
+ return -ENOMEM;
+ repr->dst->u.port_info.port_id = cmsg_port_id;
+ repr->dst->u.port_info.lower_dev = pf_netdev;
+
+ netdev->netdev_ops = &nfp_repr_netdev_ops;
+ SWITCHDEV_SET_OPS(netdev, &nfp_port_switchdev_ops);
+
+ if (nfp_app_has_tc(app)) {
+ netdev->features |= NETIF_F_HW_TC;
+ netdev->hw_features |= NETIF_F_HW_TC;
+ }
+
+ err = register_netdev(netdev);
+ if (err)
+ goto err_clean;
+
+ return 0;
+
+err_clean:
+ dst_release((struct dst_entry *)repr->dst);
+ return err;
+}
+
+static void nfp_repr_free(struct nfp_repr *repr)
+{
+ free_percpu(repr->stats);
+ free_netdev(repr->netdev);
+}
+
+struct net_device *nfp_repr_alloc(struct nfp_app *app)
+{
+ struct net_device *netdev;
+ struct nfp_repr *repr;
+
+ netdev = alloc_etherdev(sizeof(*repr));
+ if (!netdev)
+ return NULL;
+
+ repr = netdev_priv(netdev);
+ repr->netdev = netdev;
+ repr->app = app;
+
+ repr->stats = netdev_alloc_pcpu_stats(struct nfp_repr_pcpu_stats);
+ if (!repr->stats)
+ goto err_free_netdev;
+
+ return netdev;
+
+err_free_netdev:
+ free_netdev(netdev);
+ return NULL;
+}
+
+static void nfp_repr_clean_and_free(struct nfp_repr *repr)
+{
+ nfp_info(repr->app->cpp, "Destroying Representor(%s)\n",
+ repr->netdev->name);
+ nfp_repr_clean(repr);
+ nfp_repr_free(repr);
+}
+
+void nfp_reprs_clean_and_free(struct nfp_reprs *reprs)
+{
+ unsigned int i;
+
+ for (i = 0; i < reprs->num_reprs; i++)
+ if (reprs->reprs[i])
+ nfp_repr_clean_and_free(netdev_priv(reprs->reprs[i]));
+
+ kfree(reprs);
+}
+
+void
+nfp_reprs_clean_and_free_by_type(struct nfp_app *app,
+ enum nfp_repr_type type)
+{
+ struct nfp_reprs *reprs;
+
+ reprs = nfp_app_reprs_set(app, type, NULL);
+ if (!reprs)
+ return;
+
+ synchronize_rcu();
+ nfp_reprs_clean_and_free(reprs);
+}
+
+struct nfp_reprs *nfp_reprs_alloc(unsigned int num_reprs)
+{
+ struct nfp_reprs *reprs;
+
+ reprs = kzalloc(sizeof(*reprs) +
+ num_reprs * sizeof(struct net_device *), GFP_KERNEL);
+ if (!reprs)
+ return NULL;
+ reprs->num_reprs = num_reprs;
+
+ return reprs;
+}
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h
new file mode 100644
index 000000000000..32179cad062a
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef NFP_NET_REPR_H
+#define NFP_NET_REPR_H
+
+struct metadata_dst;
+struct nfp_net;
+struct nfp_port;
+
+#include <net/dst_metadata.h>
+
+/**
+ * struct nfp_reprs - container for representor netdevs
+ * @num_reprs: Number of elements in reprs array
+ * @reprs: Array of representor netdevs
+ */
+struct nfp_reprs {
+ unsigned int num_reprs;
+ struct net_device *reprs[0];
+};
+
+/**
+ * struct nfp_repr_pcpu_stats
+ * @rx_packets: Received packets
+ * @rx_bytes: Received bytes
+ * @tx_packets: Transmitted packets
+ * @tx_bytes: Transmitted dropped
+ * @tx_drops: Packets dropped on transmit
+ * @syncp: Reference count
+ */
+struct nfp_repr_pcpu_stats {
+ u64 rx_packets;
+ u64 rx_bytes;
+ u64 tx_packets;
+ u64 tx_bytes;
+ u64 tx_drops;
+ struct u64_stats_sync syncp;
+};
+
+/**
+ * struct nfp_repr - priv data for representor netdevs
+ * @netdev: Back pointer to netdev
+ * @dst: Destination for packet TX
+ * @port: Port of representor
+ * @app: APP handle
+ * @stats: Statistic of packets hitting CPU
+ */
+struct nfp_repr {
+ struct net_device *netdev;
+ struct metadata_dst *dst;
+ struct nfp_port *port;
+ struct nfp_app *app;
+ struct nfp_repr_pcpu_stats __percpu *stats;
+};
+
+/**
+ * enum nfp_repr_type - type of representor
+ * @NFP_REPR_TYPE_PHYS_PORT: external NIC port
+ * @NFP_REPR_TYPE_PF: physical function
+ * @NFP_REPR_TYPE_VF: virtual function
+ */
+enum nfp_repr_type {
+ NFP_REPR_TYPE_PHYS_PORT,
+ NFP_REPR_TYPE_PF,
+ NFP_REPR_TYPE_VF,
+
+ __NFP_REPR_TYPE_MAX,
+};
+#define NFP_REPR_TYPE_MAX (__NFP_REPR_TYPE_MAX - 1)
+
+extern const struct net_device_ops nfp_repr_netdev_ops;
+
+static inline bool nfp_netdev_is_nfp_repr(struct net_device *netdev)
+{
+ return netdev->netdev_ops == &nfp_repr_netdev_ops;
+}
+
+static inline int nfp_repr_get_port_id(struct net_device *netdev)
+{
+ struct nfp_repr *priv = netdev_priv(netdev);
+
+ return priv->dst->u.port_info.port_id;
+}
+
+void nfp_repr_inc_rx_stats(struct net_device *netdev, unsigned int len);
+int nfp_repr_init(struct nfp_app *app, struct net_device *netdev,
+ u32 cmsg_port_id, struct nfp_port *port,
+ struct net_device *pf_netdev);
+struct net_device *nfp_repr_alloc(struct nfp_app *app);
+void
+nfp_reprs_clean_and_free(struct nfp_reprs *reprs);
+void
+nfp_reprs_clean_and_free_by_type(struct nfp_app *app,
+ enum nfp_repr_type type);
+struct nfp_reprs *nfp_reprs_alloc(unsigned int num_reprs);
+
+#endif /* NFP_NET_REPR_H */
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c b/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c
index 86e61be6f35c..c879626e035b 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c
@@ -161,7 +161,7 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev,
dev_warn(&pdev->dev, "OBSOLETE Firmware detected - VF isolation not available\n");
} else {
switch (fw_ver.major) {
- case 1 ... 4:
+ case 1 ... 5:
stride = 4;
tx_bar_no = NFP_NET_Q0_BAR;
rx_bar_no = tx_bar_no;
@@ -202,7 +202,7 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev,
rx_bar_off = NFP_PCIE_QUEUE(startq);
/* Allocate and initialise the netdev */
- nn = nfp_net_netdev_alloc(pdev, max_tx_rings, max_rx_rings);
+ nn = nfp_net_alloc(pdev, true, max_tx_rings, max_rx_rings);
if (IS_ERR(nn)) {
err = PTR_ERR(nn);
goto err_ctrl_unmap;
@@ -267,7 +267,7 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev,
nfp_netvf_get_mac_addr(nn);
num_irqs = nfp_net_irqs_alloc(pdev, vf->irq_entries,
- NFP_NET_MIN_PORT_IRQS,
+ NFP_NET_MIN_VNIC_IRQS,
NFP_NET_NON_Q_VECTORS +
nn->dp.num_r_vecs);
if (!num_irqs) {
@@ -283,13 +283,13 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev,
*/
nn->me_freq_mhz = 1200;
- err = nfp_net_netdev_init(nn->dp.netdev);
+ err = nfp_net_init(nn);
if (err)
goto err_irqs_disable;
nfp_net_info(nn);
vf->ddir = nfp_net_debugfs_device_add(pdev);
- nfp_net_debugfs_port_add(nn, vf->ddir, 0);
+ nfp_net_debugfs_vnic_add(nn, vf->ddir, 0);
return 0;
@@ -304,7 +304,7 @@ err_unmap_tx:
else
iounmap(vf->q_bar);
err_netdev_free:
- nfp_net_netdev_free(nn);
+ nfp_net_free(nn);
err_ctrl_unmap:
iounmap(ctrl_bar);
err_pci_regions:
@@ -328,7 +328,7 @@ static void nfp_netvf_pci_remove(struct pci_dev *pdev)
nfp_net_debugfs_dir_clean(&nn->debugfs_dir);
nfp_net_debugfs_dir_clean(&vf->ddir);
- nfp_net_netdev_clean(nn->dp.netdev);
+ nfp_net_clean(nn);
nfp_net_irqs_disable(pdev);
@@ -340,7 +340,7 @@ static void nfp_netvf_pci_remove(struct pci_dev *pdev)
}
iounmap(nn->dp.ctrl_bar);
- nfp_net_netdev_free(nn);
+ nfp_net_free(nn);
pci_release_regions(pdev);
pci_disable_device(pdev);
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_port.c b/drivers/net/ethernet/netronome/nfp/nfp_port.c
new file mode 100644
index 000000000000..e42644dbb865
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nfp_port.c
@@ -0,0 +1,233 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/lockdep.h>
+#include <net/switchdev.h>
+
+#include "nfpcore/nfp_cpp.h"
+#include "nfpcore/nfp_nsp.h"
+#include "nfp_app.h"
+#include "nfp_main.h"
+#include "nfp_net.h"
+#include "nfp_port.h"
+
+struct nfp_port *nfp_port_from_netdev(struct net_device *netdev)
+{
+ if (nfp_netdev_is_nfp_net(netdev)) {
+ struct nfp_net *nn = netdev_priv(netdev);
+
+ return nn->port;
+ }
+
+ if (nfp_netdev_is_nfp_repr(netdev)) {
+ struct nfp_repr *repr = netdev_priv(netdev);
+
+ return repr->port;
+ }
+
+ WARN(1, "Unknown netdev type for nfp_port\n");
+
+ return NULL;
+}
+
+static int
+nfp_port_attr_get(struct net_device *netdev, struct switchdev_attr *attr)
+{
+ struct nfp_port *port;
+
+ port = nfp_port_from_netdev(netdev);
+ if (!port)
+ return -EOPNOTSUPP;
+
+ switch (attr->id) {
+ case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: {
+ const u8 *serial;
+ /* N.B: attr->u.ppid.id is binary data */
+ attr->u.ppid.id_len = nfp_cpp_serial(port->app->cpp, &serial);
+ memcpy(&attr->u.ppid.id, serial, attr->u.ppid.id_len);
+ break;
+ }
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+const struct switchdev_ops nfp_port_switchdev_ops = {
+ .switchdev_port_attr_get = nfp_port_attr_get,
+};
+
+int nfp_port_setup_tc(struct net_device *netdev, u32 handle, u32 chain_index,
+ __be16 proto, struct tc_to_netdev *tc)
+{
+ struct nfp_port *port;
+
+ if (chain_index)
+ return -EOPNOTSUPP;
+
+ port = nfp_port_from_netdev(netdev);
+ if (!port)
+ return -EOPNOTSUPP;
+
+ return nfp_app_setup_tc(port->app, netdev, handle, proto, tc);
+}
+
+struct nfp_port *
+nfp_port_from_id(struct nfp_pf *pf, enum nfp_port_type type, unsigned int id)
+{
+ struct nfp_port *port;
+
+ lockdep_assert_held(&pf->lock);
+
+ if (type != NFP_PORT_PHYS_PORT)
+ return NULL;
+
+ list_for_each_entry(port, &pf->ports, port_list)
+ if (port->eth_id == id)
+ return port;
+
+ return NULL;
+}
+
+struct nfp_eth_table_port *__nfp_port_get_eth_port(struct nfp_port *port)
+{
+ if (!port)
+ return NULL;
+ if (port->type != NFP_PORT_PHYS_PORT)
+ return NULL;
+
+ return port->eth_port;
+}
+
+struct nfp_eth_table_port *nfp_port_get_eth_port(struct nfp_port *port)
+{
+ if (!__nfp_port_get_eth_port(port))
+ return NULL;
+
+ if (test_bit(NFP_PORT_CHANGED, &port->flags))
+ if (nfp_net_refresh_eth_port(port))
+ return NULL;
+
+ return __nfp_port_get_eth_port(port);
+}
+
+int
+nfp_port_get_phys_port_name(struct net_device *netdev, char *name, size_t len)
+{
+ struct nfp_eth_table_port *eth_port;
+ struct nfp_port *port;
+ int n;
+
+ port = nfp_port_from_netdev(netdev);
+ if (!port)
+ return -EOPNOTSUPP;
+
+ switch (port->type) {
+ case NFP_PORT_PHYS_PORT:
+ eth_port = __nfp_port_get_eth_port(port);
+ if (!eth_port)
+ return -EOPNOTSUPP;
+
+ if (!eth_port->is_split)
+ n = snprintf(name, len, "p%d", eth_port->label_port);
+ else
+ n = snprintf(name, len, "p%ds%d", eth_port->label_port,
+ eth_port->label_subport);
+ break;
+ case NFP_PORT_PF_PORT:
+ n = snprintf(name, len, "pf%d", port->pf_id);
+ break;
+ case NFP_PORT_VF_PORT:
+ n = snprintf(name, len, "pf%dvf%d", port->pf_id, port->vf_id);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ if (n >= len)
+ return -EINVAL;
+
+ return 0;
+}
+
+int nfp_port_init_phy_port(struct nfp_pf *pf, struct nfp_app *app,
+ struct nfp_port *port, unsigned int id)
+{
+ /* Check if vNIC has external port associated and cfg is OK */
+ if (!pf->eth_tbl || id >= pf->eth_tbl->count) {
+ nfp_err(app->cpp,
+ "NSP port entries don't match vNICs (no entry %d)\n",
+ id);
+ return -EINVAL;
+ }
+ if (pf->eth_tbl->ports[id].override_changed) {
+ nfp_warn(app->cpp,
+ "Config changed for port #%d, reboot required before port will be operational\n",
+ pf->eth_tbl->ports[id].index);
+ port->type = NFP_PORT_INVALID;
+ return 0;
+ }
+
+ port->eth_port = &pf->eth_tbl->ports[id];
+ port->eth_id = pf->eth_tbl->ports[id].index;
+
+ return 0;
+}
+
+struct nfp_port *
+nfp_port_alloc(struct nfp_app *app, enum nfp_port_type type,
+ struct net_device *netdev)
+{
+ struct nfp_port *port;
+
+ port = kzalloc(sizeof(*port), GFP_KERNEL);
+ if (!port)
+ return ERR_PTR(-ENOMEM);
+
+ port->netdev = netdev;
+ port->type = type;
+ port->app = app;
+
+ list_add_tail(&port->port_list, &app->pf->ports);
+
+ return port;
+}
+
+void nfp_port_free(struct nfp_port *port)
+{
+ if (!port)
+ return;
+ list_del(&port->port_list);
+ kfree(port);
+}
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_port.h b/drivers/net/ethernet/netronome/nfp/nfp_port.h
new file mode 100644
index 000000000000..a33d22e18f94
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nfp_port.h
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _NFP_PORT_H_
+#define _NFP_PORT_H_
+
+#include <net/devlink.h>
+
+struct tc_to_netdev;
+struct net_device;
+struct nfp_app;
+struct nfp_pf;
+struct nfp_port;
+
+/**
+ * enum nfp_port_type - type of port NFP can switch traffic to
+ * @NFP_PORT_INVALID: port is invalid, %NFP_PORT_PHYS_PORT transitions to this
+ * state when port disappears because of FW fault or config
+ * change
+ * @NFP_PORT_PHYS_PORT: external NIC port
+ * @NFP_PORT_PF_PORT: logical port of PCI PF
+ * @NFP_PORT_VF_PORT: logical port of PCI VF
+ */
+enum nfp_port_type {
+ NFP_PORT_INVALID,
+ NFP_PORT_PHYS_PORT,
+ NFP_PORT_PF_PORT,
+ NFP_PORT_VF_PORT,
+};
+
+/**
+ * enum nfp_port_flags - port flags (can be type-specific)
+ * @NFP_PORT_CHANGED: port state has changed since last eth table refresh;
+ * for NFP_PORT_PHYS_PORT, never set otherwise; must hold
+ * rtnl_lock to clear
+ */
+enum nfp_port_flags {
+ NFP_PORT_CHANGED = 0,
+};
+
+/**
+ * struct nfp_port - structure representing NFP port
+ * @netdev: backpointer to associated netdev
+ * @type: what port type does the entity represent
+ * @flags: port flags
+ * @app: backpointer to the app structure
+ * @dl_port: devlink port structure
+ * @eth_id: for %NFP_PORT_PHYS_PORT port ID in NFP enumeration scheme
+ * @eth_port: for %NFP_PORT_PHYS_PORT translated ETH Table port entry
+ * @pf_id: for %NFP_PORT_PF_PORT, %NFP_PORT_VF_PORT ID of the PCI PF (0-3)
+ * @vf_id: for %NFP_PORT_VF_PORT ID of the PCI VF within @pf_id
+ * @port_list: entry on pf's list of ports
+ */
+struct nfp_port {
+ struct net_device *netdev;
+ enum nfp_port_type type;
+
+ unsigned long flags;
+
+ struct nfp_app *app;
+
+ struct devlink_port dl_port;
+
+ union {
+ /* NFP_PORT_PHYS_PORT */
+ struct {
+ unsigned int eth_id;
+ struct nfp_eth_table_port *eth_port;
+ };
+ /* NFP_PORT_PF_PORT, NFP_PORT_VF_PORT */
+ struct {
+ unsigned int pf_id;
+ unsigned int vf_id;
+ };
+ };
+
+ struct list_head port_list;
+};
+
+extern const struct switchdev_ops nfp_port_switchdev_ops;
+
+int nfp_port_setup_tc(struct net_device *netdev, u32 handle, u32 chain_index,
+ __be16 proto, struct tc_to_netdev *tc);
+
+struct nfp_port *nfp_port_from_netdev(struct net_device *netdev);
+struct nfp_port *
+nfp_port_from_id(struct nfp_pf *pf, enum nfp_port_type type, unsigned int id);
+struct nfp_eth_table_port *__nfp_port_get_eth_port(struct nfp_port *port);
+struct nfp_eth_table_port *nfp_port_get_eth_port(struct nfp_port *port);
+
+int
+nfp_port_get_phys_port_name(struct net_device *netdev, char *name, size_t len);
+
+struct nfp_port *
+nfp_port_alloc(struct nfp_app *app, enum nfp_port_type type,
+ struct net_device *netdev);
+void nfp_port_free(struct nfp_port *port);
+
+int nfp_port_init_phy_port(struct nfp_pf *pf, struct nfp_app *app,
+ struct nfp_port *port, unsigned int id);
+
+int nfp_net_refresh_eth_port(struct nfp_port *port);
+void nfp_net_refresh_port_table(struct nfp_port *port);
+int nfp_net_refresh_port_table_sync(struct nfp_pf *pf);
+
+int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port);
+void nfp_devlink_port_unregister(struct nfp_port *port);
+
+/**
+ * Mac stats (0x0000 - 0x0200)
+ * all counters are 64bit.
+ */
+#define NFP_MAC_STATS_BASE 0x0000
+#define NFP_MAC_STATS_SIZE 0x0200
+
+#define NFP_MAC_STATS_RX_IN_OCTETS (NFP_MAC_STATS_BASE + 0x000)
+#define NFP_MAC_STATS_RX_FRAME_TOO_LONG_ERRORS (NFP_MAC_STATS_BASE + 0x010)
+#define NFP_MAC_STATS_RX_RANGE_LENGTH_ERRORS (NFP_MAC_STATS_BASE + 0x018)
+#define NFP_MAC_STATS_RX_VLAN_REVEIVE_OK (NFP_MAC_STATS_BASE + 0x020)
+#define NFP_MAC_STATS_RX_IN_ERRORS (NFP_MAC_STATS_BASE + 0x028)
+#define NFP_MAC_STATS_RX_IN_BROADCAST_PKTS (NFP_MAC_STATS_BASE + 0x030)
+#define NFP_MAC_STATS_RX_STATS_DROP_EVENTS (NFP_MAC_STATS_BASE + 0x038)
+#define NFP_MAC_STATS_RX_ALIGNMENT_ERRORS (NFP_MAC_STATS_BASE + 0x040)
+#define NFP_MAC_STATS_RX_PAUSE_MAC_CTRL_FRAMES (NFP_MAC_STATS_BASE + 0x048)
+#define NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK (NFP_MAC_STATS_BASE + 0x050)
+#define NFP_MAC_STATS_RX_FRAME_CHECK_SEQUENCE_ERRORS (NFP_MAC_STATS_BASE + 0x058)
+#define NFP_MAC_STATS_RX_UNICAST_PKTS (NFP_MAC_STATS_BASE + 0x060)
+#define NFP_MAC_STATS_RX_MULTICAST_PKTS (NFP_MAC_STATS_BASE + 0x068)
+#define NFP_MAC_STATS_RX_STATS_PKTS (NFP_MAC_STATS_BASE + 0x070)
+#define NFP_MAC_STATS_RX_STATS_UNDERSIZE_PKTS (NFP_MAC_STATS_BASE + 0x078)
+#define NFP_MAC_STATS_RX_STATS_PKTS_64_OCTETS (NFP_MAC_STATS_BASE + 0x080)
+#define NFP_MAC_STATS_RX_STATS_PKTS_65_TO_127_OCTETS (NFP_MAC_STATS_BASE + 0x088)
+#define NFP_MAC_STATS_RX_STATS_PKTS_512_TO_1023_OCTETS (NFP_MAC_STATS_BASE + 0x090)
+#define NFP_MAC_STATS_RX_STATS_PKTS_1024_TO_1518_OCTETS (NFP_MAC_STATS_BASE + 0x098)
+#define NFP_MAC_STATS_RX_STATS_JABBERS (NFP_MAC_STATS_BASE + 0x0a0)
+#define NFP_MAC_STATS_RX_STATS_FRAGMENTS (NFP_MAC_STATS_BASE + 0x0a8)
+#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS2 (NFP_MAC_STATS_BASE + 0x0b0)
+#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS3 (NFP_MAC_STATS_BASE + 0x0b8)
+#define NFP_MAC_STATS_RX_STATS_PKTS_128_TO_255_OCTETS (NFP_MAC_STATS_BASE + 0x0c0)
+#define NFP_MAC_STATS_RX_STATS_PKTS_256_TO_511_OCTETS (NFP_MAC_STATS_BASE + 0x0c8)
+#define NFP_MAC_STATS_RX_STATS_PKTS_1519_TO_MAX_OCTETS (NFP_MAC_STATS_BASE + 0x0d0)
+#define NFP_MAC_STATS_RX_OVERSIZE_PKTS (NFP_MAC_STATS_BASE + 0x0d8)
+#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS0 (NFP_MAC_STATS_BASE + 0x0e0)
+#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS1 (NFP_MAC_STATS_BASE + 0x0e8)
+#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS4 (NFP_MAC_STATS_BASE + 0x0f0)
+#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS5 (NFP_MAC_STATS_BASE + 0x0f8)
+#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS6 (NFP_MAC_STATS_BASE + 0x100)
+#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS7 (NFP_MAC_STATS_BASE + 0x108)
+#define NFP_MAC_STATS_RX_MAC_CTRL_FRAMES_RECEIVED (NFP_MAC_STATS_BASE + 0x110)
+#define NFP_MAC_STATS_RX_MAC_HEAD_DROP (NFP_MAC_STATS_BASE + 0x118)
+
+#define NFP_MAC_STATS_TX_QUEUE_DROP (NFP_MAC_STATS_BASE + 0x138)
+#define NFP_MAC_STATS_TX_OUT_OCTETS (NFP_MAC_STATS_BASE + 0x140)
+#define NFP_MAC_STATS_TX_VLAN_TRANSMITTED_OK (NFP_MAC_STATS_BASE + 0x150)
+#define NFP_MAC_STATS_TX_OUT_ERRORS (NFP_MAC_STATS_BASE + 0x158)
+#define NFP_MAC_STATS_TX_BROADCAST_PKTS (NFP_MAC_STATS_BASE + 0x160)
+#define NFP_MAC_STATS_TX_PKTS_64_OCTETS (NFP_MAC_STATS_BASE + 0x168)
+#define NFP_MAC_STATS_TX_PKTS_256_TO_511_OCTETS (NFP_MAC_STATS_BASE + 0x170)
+#define NFP_MAC_STATS_TX_PKTS_512_TO_1023_OCTETS (NFP_MAC_STATS_BASE + 0x178)
+#define NFP_MAC_STATS_TX_PAUSE_MAC_CTRL_FRAMES (NFP_MAC_STATS_BASE + 0x180)
+#define NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK (NFP_MAC_STATS_BASE + 0x188)
+#define NFP_MAC_STATS_TX_UNICAST_PKTS (NFP_MAC_STATS_BASE + 0x190)
+#define NFP_MAC_STATS_TX_MULTICAST_PKTS (NFP_MAC_STATS_BASE + 0x198)
+#define NFP_MAC_STATS_TX_PKTS_65_TO_127_OCTETS (NFP_MAC_STATS_BASE + 0x1a0)
+#define NFP_MAC_STATS_TX_PKTS_127_TO_512_OCTETS (NFP_MAC_STATS_BASE + 0x1a8)
+#define NFP_MAC_STATS_TX_PKTS_128_TO_1518_OCTETS (NFP_MAC_STATS_BASE + 0x1b0)
+#define NFP_MAC_STATS_TX_PKTS_1518_TO_MAX_OCTETS (NFP_MAC_STATS_BASE + 0x1b8)
+
+#endif
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h
index 4df2ce261b3f..1a8d04a1e113 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h
@@ -46,7 +46,9 @@
/* Implemented in nfp_hwinfo.c */
-const char *nfp_hwinfo_lookup(struct nfp_cpp *cpp, const char *lookup);
+struct nfp_hwinfo;
+struct nfp_hwinfo *nfp_hwinfo_read(struct nfp_cpp *cpp);
+const char *nfp_hwinfo_lookup(struct nfp_hwinfo *hwinfo, const char *lookup);
/* Implemented in nfp_nsp.c, low level functions */
@@ -64,6 +66,8 @@ int nfp_nsp_read_eth_table(struct nfp_nsp *state, void *buf, unsigned int size);
int nfp_nsp_write_eth_table(struct nfp_nsp *state,
const void *buf, unsigned int size);
int nfp_nsp_read_identify(struct nfp_nsp *state, void *buf, unsigned int size);
+int nfp_nsp_read_sensors(struct nfp_nsp *state, unsigned int sensor_mask,
+ void *buf, unsigned int size);
/* Implemented in nfp_resource.c */
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c
index 43dc68e01274..cd678323bacb 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c
@@ -119,6 +119,11 @@
#define NFP_PCIE_EM 0x020000
#define NFP_PCIE_SRAM 0x000000
+/* Minimal size of the PCIe cfg memory we depend on being mapped,
+ * queue controller and DMA controller don't have to be covered.
+ */
+#define NFP_PCI_MIN_MAP_SIZE 0x080000
+
#define NFP_PCIE_P2C_FIXED_SIZE(bar) (1 << (bar)->bitsize)
#define NFP_PCIE_P2C_BULK_SIZE(bar) (1 << (bar)->bitsize)
#define NFP_PCIE_P2C_GENERAL_TARGET_OFFSET(bar, x) ((x) << ((bar)->bitsize - 2))
@@ -583,9 +588,15 @@ static int enable_bars(struct nfp6000_pcie *nfp, u16 interface)
NFP_PCIE_BAR_PCIE2CPP_MapType(
NFP_PCIE_BAR_PCIE2CPP_MapType_EXPLICIT3),
};
+ char status_msg[196] = {};
struct nfp_bar *bar;
int i, bars_free;
int expl_groups;
+ char *msg, *end;
+
+ msg = status_msg +
+ snprintf(status_msg, sizeof(status_msg) - 1, "RESERVED BARs: ");
+ end = status_msg + sizeof(status_msg) - 1;
bar = &nfp->bar[0];
for (i = 0; i < ARRAY_SIZE(nfp->bar); i++, bar++) {
@@ -628,34 +639,38 @@ static int enable_bars(struct nfp6000_pcie *nfp, u16 interface)
/* Configure, and lock, BAR0.0 for General Target use (MSI-X SRAM) */
bar = &nfp->bar[0];
- bar->iomem = ioremap_nocache(nfp_bar_resource_start(bar),
- nfp_bar_resource_len(bar));
+ if (nfp_bar_resource_len(bar) >= NFP_PCI_MIN_MAP_SIZE)
+ bar->iomem = ioremap_nocache(nfp_bar_resource_start(bar),
+ nfp_bar_resource_len(bar));
if (bar->iomem) {
- dev_info(nfp->dev,
- "BAR0.0 RESERVED: General Mapping/MSI-X SRAM\n");
+ msg += snprintf(msg, end - msg, "0.0: General/MSI-X SRAM, ");
atomic_inc(&bar->refcnt);
bars_free--;
nfp6000_bar_write(nfp, bar, barcfg_msix_general);
nfp->expl.data = bar->iomem + NFP_PCIE_SRAM + 0x1000;
+
+ if (nfp->pdev->device == PCI_DEVICE_ID_NETRONOME_NFP4000 ||
+ nfp->pdev->device == PCI_DEVICE_ID_NETRONOME_NFP6000) {
+ nfp->iomem.csr = bar->iomem + NFP_PCIE_BAR(0);
+ } else {
+ int pf = nfp->pdev->devfn & 7;
+
+ nfp->iomem.csr = bar->iomem + NFP_PCIE_BAR(pf);
+ }
+ nfp->iomem.em = bar->iomem + NFP_PCIE_EM;
}
if (nfp->pdev->device == PCI_DEVICE_ID_NETRONOME_NFP4000 ||
- nfp->pdev->device == PCI_DEVICE_ID_NETRONOME_NFP6000) {
- nfp->iomem.csr = bar->iomem + NFP_PCIE_BAR(0);
+ nfp->pdev->device == PCI_DEVICE_ID_NETRONOME_NFP6000)
expl_groups = 4;
- } else {
- int pf = nfp->pdev->devfn & 7;
-
- nfp->iomem.csr = bar->iomem + NFP_PCIE_BAR(pf);
+ else
expl_groups = 1;
- }
- nfp->iomem.em = bar->iomem + NFP_PCIE_EM;
/* Configure, and lock, BAR0.1 for PCIe XPB (MSI-X PBA) */
bar = &nfp->bar[1];
- dev_info(nfp->dev, "BAR0.1 RESERVED: PCIe XPB/MSI-X PBA\n");
+ msg += snprintf(msg, end - msg, "0.1: PCIe XPB/MSI-X PBA, ");
atomic_inc(&bar->refcnt);
bars_free--;
@@ -674,9 +689,8 @@ static int enable_bars(struct nfp6000_pcie *nfp, u16 interface)
bar->iomem = ioremap_nocache(nfp_bar_resource_start(bar),
nfp_bar_resource_len(bar));
if (bar->iomem) {
- dev_info(nfp->dev,
- "BAR0.%d RESERVED: Explicit%d Mapping\n",
- 4 + i, i);
+ msg += snprintf(msg, end - msg,
+ "0.%d: Explicit%d, ", 4 + i, i);
atomic_inc(&bar->refcnt);
bars_free--;
@@ -694,8 +708,7 @@ static int enable_bars(struct nfp6000_pcie *nfp, u16 interface)
sort(&nfp->bar[0], nfp->bars, sizeof(nfp->bar[0]),
bar_cmp, NULL);
- dev_info(nfp->dev, "%d NFP PCI2CPP BARs, %d free\n",
- nfp->bars, bars_free);
+ dev_info(nfp->dev, "%sfree: %d/%d\n", status_msg, bars_free, nfp->bars);
return 0;
}
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h
index edecc0a27485..5798adc57cbc 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h
@@ -42,6 +42,7 @@
#include <linux/ctype.h>
#include <linux/types.h>
+#include <linux/sizes.h>
#ifndef NFP_SUBSYS
#define NFP_SUBSYS "nfp"
@@ -59,6 +60,13 @@
#define PCI_64BIT_BAR_COUNT 3
#define NFP_CPP_NUM_TARGETS 16
+/* Max size of area it should be safe to request */
+#define NFP_CPP_SAFE_AREA_SIZE SZ_2M
+
+/* NFP_MUTEX_WAIT_* are timeouts in seconds when waiting for a mutex */
+#define NFP_MUTEX_WAIT_FIRST_WARN 15
+#define NFP_MUTEX_WAIT_NEXT_WARN 5
+#define NFP_MUTEX_WAIT_ERROR 60
struct device;
@@ -214,13 +222,6 @@ u32 nfp_cpp_model(struct nfp_cpp *cpp);
u16 nfp_cpp_interface(struct nfp_cpp *cpp);
int nfp_cpp_serial(struct nfp_cpp *cpp, const u8 **serial);
-void *nfp_hwinfo_cache(struct nfp_cpp *cpp);
-void nfp_hwinfo_cache_set(struct nfp_cpp *cpp, void *val);
-void *nfp_rtsym_cache(struct nfp_cpp *cpp);
-void nfp_rtsym_cache_set(struct nfp_cpp *cpp, void *val);
-
-void nfp_nffw_cache_flush(struct nfp_cpp *cpp);
-
struct nfp_cpp_area *nfp_cpp_area_alloc_with_name(struct nfp_cpp *cpp,
u32 cpp_id,
const char *name,
@@ -229,6 +230,9 @@ struct nfp_cpp_area *nfp_cpp_area_alloc_with_name(struct nfp_cpp *cpp,
struct nfp_cpp_area *nfp_cpp_area_alloc(struct nfp_cpp *cpp, u32 cpp_id,
unsigned long long address,
unsigned long size);
+struct nfp_cpp_area *
+nfp_cpp_area_alloc_acquire(struct nfp_cpp *cpp, const char *name, u32 cpp_id,
+ unsigned long long address, unsigned long size);
void nfp_cpp_area_free(struct nfp_cpp_area *area);
int nfp_cpp_area_acquire(struct nfp_cpp_area *area);
int nfp_cpp_area_acquire_nonblocking(struct nfp_cpp_area *area);
@@ -238,8 +242,6 @@ int nfp_cpp_area_read(struct nfp_cpp_area *area, unsigned long offset,
void *buffer, size_t length);
int nfp_cpp_area_write(struct nfp_cpp_area *area, unsigned long offset,
const void *buffer, size_t length);
-int nfp_cpp_area_check_range(struct nfp_cpp_area *area,
- unsigned long long offset, unsigned long size);
const char *nfp_cpp_area_name(struct nfp_cpp_area *cpp_area);
void *nfp_cpp_area_priv(struct nfp_cpp_area *cpp_area);
struct nfp_cpp *nfp_cpp_area_cpp(struct nfp_cpp_area *cpp_area);
@@ -277,6 +279,10 @@ int nfp_cpp_readq(struct nfp_cpp *cpp, u32 cpp_id,
int nfp_cpp_writeq(struct nfp_cpp *cpp, u32 cpp_id,
unsigned long long address, u64 value);
+u8 __iomem *
+nfp_cpp_map_area(struct nfp_cpp *cpp, const char *name, int domain, int target,
+ u64 addr, unsigned long size, struct nfp_cpp_area **area);
+
struct nfp_cpp_mutex;
int nfp_cpp_mutex_init(struct nfp_cpp *cpp, int target,
@@ -289,6 +295,17 @@ int nfp_cpp_mutex_lock(struct nfp_cpp_mutex *mutex);
int nfp_cpp_mutex_unlock(struct nfp_cpp_mutex *mutex);
int nfp_cpp_mutex_trylock(struct nfp_cpp_mutex *mutex);
+/**
+ * nfp_cppcore_pcie_unit() - Get PCI Unit of a CPP handle
+ * @cpp: CPP handle
+ *
+ * Return: PCI unit for the NFP CPP handle
+ */
+static inline u8 nfp_cppcore_pcie_unit(struct nfp_cpp *cpp)
+{
+ return NFP_CPP_INTERFACE_UNIT_of(nfp_cpp_interface(cpp));
+}
+
struct nfp_cpp_explicit;
struct nfp_cpp_explicit_command {
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c
index e2abba4c3a3f..04dd5758ecf5 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c
@@ -76,10 +76,6 @@ struct nfp_cpp_resource {
* @serial: chip serial number
* @imb_cat_table: CPP Mapping Table
*
- * Following fields can be used only in probe() or with rtnl held:
- * @hwinfo: HWInfo database fetched from the device
- * @rtsym: firmware run time symbols
- *
* Following fields use explicit locking:
* @resource_list: NFP CPP resource list
* @resource_lock: protects @resource_list
@@ -107,9 +103,6 @@ struct nfp_cpp {
struct mutex area_cache_mutex;
struct list_head area_cache_list;
-
- void *hwinfo;
- void *rtsym;
};
/* Element of the area_cache_list */
@@ -233,9 +226,6 @@ void nfp_cpp_free(struct nfp_cpp *cpp)
if (cpp->op->free)
cpp->op->free(cpp);
- kfree(cpp->hwinfo);
- kfree(cpp->rtsym);
-
device_unregister(&cpp->dev);
kfree(cpp);
@@ -276,39 +266,6 @@ int nfp_cpp_serial(struct nfp_cpp *cpp, const u8 **serial)
return sizeof(cpp->serial);
}
-void *nfp_hwinfo_cache(struct nfp_cpp *cpp)
-{
- return cpp->hwinfo;
-}
-
-void nfp_hwinfo_cache_set(struct nfp_cpp *cpp, void *val)
-{
- cpp->hwinfo = val;
-}
-
-void *nfp_rtsym_cache(struct nfp_cpp *cpp)
-{
- return cpp->rtsym;
-}
-
-void nfp_rtsym_cache_set(struct nfp_cpp *cpp, void *val)
-{
- cpp->rtsym = val;
-}
-
-/**
- * nfp_nffw_cache_flush() - Flush cached firmware information
- * @cpp: NFP CPP handle
- *
- * Flush cached firmware information. This function should be called
- * every time firmware is loaded on unloaded.
- */
-void nfp_nffw_cache_flush(struct nfp_cpp *cpp)
-{
- kfree(nfp_rtsym_cache(cpp));
- nfp_rtsym_cache_set(cpp, NULL);
-}
-
/**
* nfp_cpp_area_alloc_with_name() - allocate a new CPP area
* @cpp: CPP device handle
@@ -404,6 +361,41 @@ nfp_cpp_area_alloc(struct nfp_cpp *cpp, u32 dest,
}
/**
+ * nfp_cpp_area_alloc_acquire() - allocate a new CPP area and lock it down
+ * @cpp: CPP handle
+ * @name: Name of region
+ * @dest: CPP id
+ * @address: Start address on CPP target
+ * @size: Size of area
+ *
+ * Allocate and initialize a CPP area structure, and lock it down so
+ * that it can be accessed directly.
+ *
+ * NOTE: @address and @size must be 32-bit aligned values.
+ *
+ * NOTE: The area must also be 'released' when the structure is freed.
+ *
+ * Return: NFP CPP Area handle, or NULL
+ */
+struct nfp_cpp_area *
+nfp_cpp_area_alloc_acquire(struct nfp_cpp *cpp, const char *name, u32 dest,
+ unsigned long long address, unsigned long size)
+{
+ struct nfp_cpp_area *area;
+
+ area = nfp_cpp_area_alloc_with_name(cpp, dest, name, address, size);
+ if (!area)
+ return NULL;
+
+ if (nfp_cpp_area_acquire(area)) {
+ nfp_cpp_area_free(area);
+ return NULL;
+ }
+
+ return area;
+}
+
+/**
* nfp_cpp_area_free() - free up the CPP area
* @area: CPP area handle
*
@@ -579,27 +571,6 @@ int nfp_cpp_area_write(struct nfp_cpp_area *area,
}
/**
- * nfp_cpp_area_check_range() - check if address range fits in CPP area
- * @area: CPP area handle
- * @offset: offset into CPP target
- * @length: size of address range in bytes
- *
- * Check if address range fits within CPP area. Return 0 if area
- * fits or -EFAULT on error.
- *
- * Return: 0, or -ERRNO
- */
-int nfp_cpp_area_check_range(struct nfp_cpp_area *area,
- unsigned long long offset, unsigned long length)
-{
- if (offset < area->offset ||
- offset + length > area->offset + area->size)
- return -EFAULT;
-
- return 0;
-}
-
-/**
* nfp_cpp_area_name() - return name of a CPP area
* @cpp_area: CPP area handle
*
@@ -924,18 +895,9 @@ area_cache_put(struct nfp_cpp *cpp, struct nfp_cpp_area_cache *cache)
mutex_unlock(&cpp->area_cache_mutex);
}
-/**
- * nfp_cpp_read() - read from CPP target
- * @cpp: CPP handle
- * @destination: CPP id
- * @address: offset into CPP target
- * @kernel_vaddr: kernel buffer for result
- * @length: number of bytes to read
- *
- * Return: length of io, or -ERRNO
- */
-int nfp_cpp_read(struct nfp_cpp *cpp, u32 destination,
- unsigned long long address, void *kernel_vaddr, size_t length)
+static int __nfp_cpp_read(struct nfp_cpp *cpp, u32 destination,
+ unsigned long long address, void *kernel_vaddr,
+ size_t length)
{
struct nfp_cpp_area_cache *cache;
struct nfp_cpp_area *area;
@@ -968,18 +930,43 @@ int nfp_cpp_read(struct nfp_cpp *cpp, u32 destination,
}
/**
- * nfp_cpp_write() - write to CPP target
+ * nfp_cpp_read() - read from CPP target
* @cpp: CPP handle
* @destination: CPP id
* @address: offset into CPP target
- * @kernel_vaddr: kernel buffer to read from
- * @length: number of bytes to write
+ * @kernel_vaddr: kernel buffer for result
+ * @length: number of bytes to read
*
* Return: length of io, or -ERRNO
*/
-int nfp_cpp_write(struct nfp_cpp *cpp, u32 destination,
- unsigned long long address,
- const void *kernel_vaddr, size_t length)
+int nfp_cpp_read(struct nfp_cpp *cpp, u32 destination,
+ unsigned long long address, void *kernel_vaddr,
+ size_t length)
+{
+ size_t n, offset;
+ int ret;
+
+ for (offset = 0; offset < length; offset += n) {
+ unsigned long long r_addr = address + offset;
+
+ /* make first read smaller to align to safe window */
+ n = min_t(size_t, length - offset,
+ ALIGN(r_addr + 1, NFP_CPP_SAFE_AREA_SIZE) - r_addr);
+
+ ret = __nfp_cpp_read(cpp, destination, address + offset,
+ kernel_vaddr + offset, n);
+ if (ret < 0)
+ return ret;
+ if (ret != n)
+ return offset + n;
+ }
+
+ return length;
+}
+
+static int __nfp_cpp_write(struct nfp_cpp *cpp, u32 destination,
+ unsigned long long address,
+ const void *kernel_vaddr, size_t length)
{
struct nfp_cpp_area_cache *cache;
struct nfp_cpp_area *area;
@@ -1011,6 +998,41 @@ int nfp_cpp_write(struct nfp_cpp *cpp, u32 destination,
return err;
}
+/**
+ * nfp_cpp_write() - write to CPP target
+ * @cpp: CPP handle
+ * @destination: CPP id
+ * @address: offset into CPP target
+ * @kernel_vaddr: kernel buffer to read from
+ * @length: number of bytes to write
+ *
+ * Return: length of io, or -ERRNO
+ */
+int nfp_cpp_write(struct nfp_cpp *cpp, u32 destination,
+ unsigned long long address,
+ const void *kernel_vaddr, size_t length)
+{
+ size_t n, offset;
+ int ret;
+
+ for (offset = 0; offset < length; offset += n) {
+ unsigned long long w_addr = address + offset;
+
+ /* make first write smaller to align to safe window */
+ n = min_t(size_t, length - offset,
+ ALIGN(w_addr + 1, NFP_CPP_SAFE_AREA_SIZE) - w_addr);
+
+ ret = __nfp_cpp_write(cpp, destination, address + offset,
+ kernel_vaddr + offset, n);
+ if (ret < 0)
+ return ret;
+ if (ret != n)
+ return offset + n;
+ }
+
+ return length;
+}
+
/* Return the correct CPP address, and fixup xpb_addr as needed. */
static u32 nfp_xpb_to_cpp(struct nfp_cpp *cpp, u32 *xpb_addr)
{
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpplib.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpplib.c
index 0ba0379b8f75..ab86bceb93f2 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpplib.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpplib.c
@@ -279,3 +279,43 @@ exit_release:
return err;
}
+
+/**
+ * nfp_cpp_map_area() - Helper function to map an area
+ * @cpp: NFP CPP handler
+ * @name: Name for the area
+ * @domain: CPP domain
+ * @target: CPP target
+ * @addr: CPP address
+ * @size: Size of the area
+ * @area: Area handle (output)
+ *
+ * Map an area of IOMEM access. To undo the effect of this function call
+ * @nfp_cpp_area_release_free(*area).
+ *
+ * Return: Pointer to memory mapped area or ERR_PTR
+ */
+u8 __iomem *
+nfp_cpp_map_area(struct nfp_cpp *cpp, const char *name, int domain, int target,
+ u64 addr, unsigned long size, struct nfp_cpp_area **area)
+{
+ u8 __iomem *res;
+ u32 dest;
+
+ dest = NFP_CPP_ISLAND_ID(target, NFP_CPP_ACTION_RW, 0, domain);
+
+ *area = nfp_cpp_area_alloc_acquire(cpp, name, dest, addr, size);
+ if (!*area)
+ goto err_eio;
+
+ res = nfp_cpp_area_iomem(*area);
+ if (!res)
+ goto err_release_free;
+
+ return res;
+
+err_release_free:
+ nfp_cpp_area_release_free(*area);
+err_eio:
+ return (u8 __iomem *)ERR_PTR(-EIO);
+}
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_hwinfo.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_hwinfo.c
index 8d8f311ffa6e..4f24aff1e772 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_hwinfo.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_hwinfo.c
@@ -178,7 +178,8 @@ hwinfo_db_validate(struct nfp_cpp *cpp, struct nfp_hwinfo *db, u32 len)
return hwinfo_db_walk(cpp, db, size);
}
-static int hwinfo_try_fetch(struct nfp_cpp *cpp, size_t *cpp_size)
+static struct nfp_hwinfo *
+hwinfo_try_fetch(struct nfp_cpp *cpp, size_t *cpp_size)
{
struct nfp_hwinfo *header;
struct nfp_resource *res;
@@ -196,7 +197,7 @@ static int hwinfo_try_fetch(struct nfp_cpp *cpp, size_t *cpp_size)
nfp_resource_release(res);
if (*cpp_size < HWINFO_SIZE_MIN)
- return -ENOENT;
+ return NULL;
} else if (PTR_ERR(res) == -ENOENT) {
/* Try getting the HWInfo table from the 'classic' location */
cpp_id = NFP_CPP_ISLAND_ID(NFP_CPP_TARGET_MU,
@@ -204,101 +205,86 @@ static int hwinfo_try_fetch(struct nfp_cpp *cpp, size_t *cpp_size)
cpp_addr = 0x30000;
*cpp_size = 0x0e000;
} else {
- return PTR_ERR(res);
+ return NULL;
}
db = kmalloc(*cpp_size + 1, GFP_KERNEL);
if (!db)
- return -ENOMEM;
+ return NULL;
err = nfp_cpp_read(cpp, cpp_id, cpp_addr, db, *cpp_size);
- if (err != *cpp_size) {
- kfree(db);
- return err < 0 ? err : -EIO;
- }
+ if (err != *cpp_size)
+ goto exit_free;
header = (void *)db;
- if (nfp_hwinfo_is_updating(header)) {
- kfree(db);
- return -EBUSY;
- }
+ if (nfp_hwinfo_is_updating(header))
+ goto exit_free;
if (le32_to_cpu(header->version) != NFP_HWINFO_VERSION_2) {
nfp_err(cpp, "Unknown HWInfo version: 0x%08x\n",
le32_to_cpu(header->version));
- kfree(db);
- return -EINVAL;
+ goto exit_free;
}
/* NULL-terminate for safety */
db[*cpp_size] = '\0';
- nfp_hwinfo_cache_set(cpp, db);
-
- return 0;
+ return (void *)db;
+exit_free:
+ kfree(db);
+ return NULL;
}
-static int hwinfo_fetch(struct nfp_cpp *cpp, size_t *hwdb_size)
+static struct nfp_hwinfo *hwinfo_fetch(struct nfp_cpp *cpp, size_t *hwdb_size)
{
const unsigned long wait_until = jiffies + HWINFO_WAIT * HZ;
+ struct nfp_hwinfo *db;
int err;
for (;;) {
const unsigned long start_time = jiffies;
- err = hwinfo_try_fetch(cpp, hwdb_size);
- if (!err)
- return 0;
+ db = hwinfo_try_fetch(cpp, hwdb_size);
+ if (db)
+ return db;
err = msleep_interruptible(100);
if (err || time_after(start_time, wait_until)) {
nfp_err(cpp, "NFP access error\n");
- return -EIO;
+ return NULL;
}
}
}
-static int nfp_hwinfo_load(struct nfp_cpp *cpp)
+struct nfp_hwinfo *nfp_hwinfo_read(struct nfp_cpp *cpp)
{
struct nfp_hwinfo *db;
size_t hwdb_size = 0;
int err;
- err = hwinfo_fetch(cpp, &hwdb_size);
- if (err)
- return err;
+ db = hwinfo_fetch(cpp, &hwdb_size);
+ if (!db)
+ return NULL;
- db = nfp_hwinfo_cache(cpp);
err = hwinfo_db_validate(cpp, db, hwdb_size);
if (err) {
kfree(db);
- nfp_hwinfo_cache_set(cpp, NULL);
- return err;
+ return NULL;
}
- return 0;
+ return db;
}
/**
* nfp_hwinfo_lookup() - Find a value in the HWInfo table by name
- * @cpp: NFP CPP handle
+ * @hwinfo: NFP HWinfo table
* @lookup: HWInfo name to search for
*
* Return: Value of the HWInfo name, or NULL
*/
-const char *nfp_hwinfo_lookup(struct nfp_cpp *cpp, const char *lookup)
+const char *nfp_hwinfo_lookup(struct nfp_hwinfo *hwinfo, const char *lookup)
{
const char *key, *val, *end;
- struct nfp_hwinfo *hwinfo;
- int err;
-
- hwinfo = nfp_hwinfo_cache(cpp);
- if (!hwinfo) {
- err = nfp_hwinfo_load(cpp);
- if (err)
- return NULL;
- hwinfo = nfp_hwinfo_cache(cpp);
- }
if (!hwinfo || !lookup)
return NULL;
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mip.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mip.c
index 3d15dd03647e..5f193fe2d69e 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mip.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mip.c
@@ -141,6 +141,8 @@ const struct nfp_mip *nfp_mip_open(struct nfp_cpp *cpp)
return NULL;
}
+ mip->name[sizeof(mip->name) - 1] = 0;
+
return mip;
}
@@ -149,6 +151,11 @@ void nfp_mip_close(const struct nfp_mip *mip)
kfree(mip);
}
+const char *nfp_mip_name(const struct nfp_mip *mip)
+{
+ return mip->name;
+}
+
/**
* nfp_mip_symtab() - Get the address and size of the MIP symbol table
* @mip: MIP handle
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c
index 8a99c189efa8..f7b958181126 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c
@@ -195,7 +195,8 @@ void nfp_cpp_mutex_free(struct nfp_cpp_mutex *mutex)
*/
int nfp_cpp_mutex_lock(struct nfp_cpp_mutex *mutex)
{
- unsigned long warn_at = jiffies + 15 * HZ;
+ unsigned long warn_at = jiffies + NFP_MUTEX_WAIT_FIRST_WARN * HZ;
+ unsigned long err_at = jiffies + NFP_MUTEX_WAIT_ERROR * HZ;
unsigned int timeout_ms = 1;
int err;
@@ -214,12 +215,16 @@ int nfp_cpp_mutex_lock(struct nfp_cpp_mutex *mutex)
return -ERESTARTSYS;
if (time_is_before_eq_jiffies(warn_at)) {
- warn_at = jiffies + 60 * HZ;
+ warn_at = jiffies + NFP_MUTEX_WAIT_NEXT_WARN * HZ;
nfp_warn(mutex->cpp,
"Warning: waiting for NFP mutex [depth:%hd target:%d addr:%llx key:%08x]\n",
mutex->depth,
mutex->target, mutex->address, mutex->key);
}
+ if (time_is_before_eq_jiffies(err_at)) {
+ nfp_err(mutex->cpp, "Error: mutex wait timed out\n");
+ return -EBUSY;
+ }
}
return err;
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nffw.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nffw.h
index 988badd230d1..c9724fb7ea4b 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nffw.h
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nffw.h
@@ -55,6 +55,7 @@ struct nfp_mip;
const struct nfp_mip *nfp_mip_open(struct nfp_cpp *cpp);
void nfp_mip_close(const struct nfp_mip *mip);
+const char *nfp_mip_name(const struct nfp_mip *mip);
void nfp_mip_symtab(const struct nfp_mip *mip, u32 *addr, u32 *size);
void nfp_mip_strtab(const struct nfp_mip *mip, u32 *addr, u32 *size);
@@ -87,9 +88,20 @@ struct nfp_rtsym {
int domain;
};
-int nfp_rtsym_count(struct nfp_cpp *cpp);
-const struct nfp_rtsym *nfp_rtsym_get(struct nfp_cpp *cpp, int idx);
-const struct nfp_rtsym *nfp_rtsym_lookup(struct nfp_cpp *cpp, const char *name);
-u64 nfp_rtsym_read_le(struct nfp_cpp *cpp, const char *name, int *error);
+struct nfp_rtsym_table;
+
+struct nfp_rtsym_table *nfp_rtsym_table_read(struct nfp_cpp *cpp);
+struct nfp_rtsym_table *
+__nfp_rtsym_table_read(struct nfp_cpp *cpp, const struct nfp_mip *mip);
+int nfp_rtsym_count(struct nfp_rtsym_table *rtbl);
+const struct nfp_rtsym *nfp_rtsym_get(struct nfp_rtsym_table *rtbl, int idx);
+const struct nfp_rtsym *
+nfp_rtsym_lookup(struct nfp_rtsym_table *rtbl, const char *name);
+
+u64 nfp_rtsym_read_le(struct nfp_rtsym_table *rtbl, const char *name,
+ int *error);
+u8 __iomem *
+nfp_rtsym_map(struct nfp_rtsym_table *rtbl, const char *name, const char *id,
+ unsigned int min_size, struct nfp_cpp_area **area);
#endif /* NFP_NFFW_H */
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
index 2fa9247bb23d..37364555c42b 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
@@ -93,6 +93,7 @@ enum nfp_nsp_cmd {
SPCODE_FW_LOAD = 6, /* Load fw from buffer, len in option */
SPCODE_ETH_RESCAN = 7, /* Rescan ETHs, write ETH_TABLE to buf */
SPCODE_ETH_CONTROL = 8, /* Update media config from buffer */
+ SPCODE_NSP_SENSORS = 12, /* Read NSP sensor(s) */
SPCODE_NSP_IDENTIFY = 13, /* Read NSP version */
};
@@ -419,6 +420,14 @@ static int nfp_nsp_command_buf(struct nfp_nsp *nsp, u16 code, u32 option,
if (err < 0)
return err;
}
+ /* Zero out remaining part of the buffer */
+ if (out_buf && out_size && out_size > in_size) {
+ memset(out_buf, 0, out_size - in_size);
+ err = nfp_cpp_write(cpp, cpp_id, cpp_buf + in_size,
+ out_buf, out_size - in_size);
+ if (err < 0)
+ return err;
+ }
ret = nfp_nsp_command(nsp, code, option, cpp_id, cpp_buf);
if (ret < 0)
@@ -465,13 +474,7 @@ int nfp_nsp_wait(struct nfp_nsp *state)
int nfp_nsp_device_soft_reset(struct nfp_nsp *state)
{
- int err;
-
- err = nfp_nsp_command(state, SPCODE_SOFT_RESET, 0, 0, 0);
-
- nfp_nffw_cache_flush(state->cpp);
-
- return err;
+ return nfp_nsp_command(state, SPCODE_SOFT_RESET, 0, 0, 0);
}
int nfp_nsp_load_fw(struct nfp_nsp *state, const struct firmware *fw)
@@ -498,3 +501,10 @@ int nfp_nsp_read_identify(struct nfp_nsp *state, void *buf, unsigned int size)
return nfp_nsp_command_buf(state, SPCODE_NSP_IDENTIFY, size, NULL, 0,
buf, size);
}
+
+int nfp_nsp_read_sensors(struct nfp_nsp *state, unsigned int sensor_mask,
+ void *buf, unsigned int size)
+{
+ return nfp_nsp_command_buf(state, SPCODE_NSP_SENSORS, sensor_mask,
+ NULL, 0, buf, size);
+}
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
index 36b21e4dc56d..e2f028027c6f 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
@@ -76,6 +76,7 @@ enum nfp_eth_aneg {
/**
* struct nfp_eth_table - ETH table information
* @count: number of table entries
+ * @max_index: max of @index fields of all @ports
* @ports: table of ports
*
* @eth_index: port index according to legacy ethX numbering
@@ -96,10 +97,12 @@ enum nfp_eth_aneg {
* @override_changed: is media reconfig pending?
*
* @port_type: one of %PORT_* defines for ethtool
+ * @port_lanes: total number of lanes on the port (sum of lanes of all subports)
* @is_split: is interface part of a split port
*/
struct nfp_eth_table {
unsigned int count;
+ unsigned int max_index;
struct nfp_eth_table_port {
unsigned int eth_index;
unsigned int index;
@@ -127,6 +130,8 @@ struct nfp_eth_table {
/* Computed fields */
u8 port_type;
+ unsigned int port_lanes;
+
bool is_split;
} ports[0];
};
@@ -157,6 +162,7 @@ int __nfp_eth_set_split(struct nfp_nsp *nsp, unsigned int lanes);
* @primary: version of primarary bootloader
* @secondary: version id of secondary bootloader
* @nsp: version id of NSP
+ * @sensor_mask: mask of present sensors available on NIC
*/
struct nfp_nsp_identify {
char version[40];
@@ -167,8 +173,19 @@ struct nfp_nsp_identify {
u16 primary;
u16 secondary;
u16 nsp;
+ u64 sensor_mask;
};
struct nfp_nsp_identify *__nfp_nsp_identify(struct nfp_nsp *nsp);
+enum nfp_nsp_sensor_id {
+ NFP_SENSOR_CHIP_TEMPERATURE,
+ NFP_SENSOR_ASSEMBLY_POWER,
+ NFP_SENSOR_ASSEMBLY_12V_POWER,
+ NFP_SENSOR_ASSEMBLY_3V3_POWER,
+};
+
+int nfp_hwmon_read_sensor(struct nfp_cpp *cpp, enum nfp_nsp_sensor_id id,
+ long *val);
+
#endif
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_cmds.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_cmds.c
index e7a263de3731..5d362f87af08 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_cmds.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_cmds.c
@@ -46,7 +46,8 @@ struct nsp_identify {
__le16 primary;
__le16 secondary;
__le16 nsp;
- __le16 reserved;
+ u8 reserved[6];
+ __le64 sensor_mask;
};
struct nfp_nsp_identify *__nfp_nsp_identify(struct nfp_nsp *nsp)
@@ -82,8 +83,52 @@ struct nfp_nsp_identify *__nfp_nsp_identify(struct nfp_nsp *nsp)
nspi->primary = le16_to_cpu(ni->primary);
nspi->secondary = le16_to_cpu(ni->secondary);
nspi->nsp = le16_to_cpu(ni->nsp);
+ nspi->sensor_mask = le64_to_cpu(ni->sensor_mask);
exit_free:
kfree(ni);
return nspi;
}
+
+struct nfp_sensors {
+ __le32 chip_temp;
+ __le32 assembly_power;
+ __le32 assembly_12v_power;
+ __le32 assembly_3v3_power;
+};
+
+int nfp_hwmon_read_sensor(struct nfp_cpp *cpp, enum nfp_nsp_sensor_id id,
+ long *val)
+{
+ struct nfp_sensors s;
+ struct nfp_nsp *nsp;
+ int ret;
+
+ nsp = nfp_nsp_open(cpp);
+ if (IS_ERR(nsp))
+ return PTR_ERR(nsp);
+
+ ret = nfp_nsp_read_sensors(nsp, BIT(id), &s, sizeof(s));
+ nfp_nsp_close(nsp);
+
+ if (ret < 0)
+ return ret;
+
+ switch (id) {
+ case NFP_SENSOR_CHIP_TEMPERATURE:
+ *val = le32_to_cpu(s.chip_temp);
+ break;
+ case NFP_SENSOR_ASSEMBLY_POWER:
+ *val = le32_to_cpu(s.assembly_power);
+ break;
+ case NFP_SENSOR_ASSEMBLY_12V_POWER:
+ *val = le32_to_cpu(s.assembly_12v_power);
+ break;
+ case NFP_SENSOR_ASSEMBLY_3V3_POWER:
+ *val = le32_to_cpu(s.assembly_3v3_power);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c
index 639438d8313a..c2bc36e8649f 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c
@@ -186,17 +186,21 @@ nfp_eth_port_translate(struct nfp_nsp *nsp, const union eth_table_entry *src,
}
static void
-nfp_eth_mark_split_ports(struct nfp_cpp *cpp, struct nfp_eth_table *table)
+nfp_eth_calc_port_geometry(struct nfp_cpp *cpp, struct nfp_eth_table *table)
{
unsigned int i, j;
- for (i = 0; i < table->count; i++)
+ for (i = 0; i < table->count; i++) {
+ table->max_index = max(table->max_index, table->ports[i].index);
+
for (j = 0; j < table->count; j++) {
- if (i == j)
- continue;
if (table->ports[i].label_port !=
table->ports[j].label_port)
continue;
+ table->ports[i].port_lanes += table->ports[j].lanes;
+
+ if (i == j)
+ continue;
if (table->ports[i].label_subport ==
table->ports[j].label_subport)
nfp_warn(cpp,
@@ -205,8 +209,8 @@ nfp_eth_mark_split_ports(struct nfp_cpp *cpp, struct nfp_eth_table *table)
table->ports[i].label_subport);
table->ports[i].is_split = true;
- break;
}
+ }
}
static void
@@ -289,7 +293,7 @@ __nfp_eth_read_ports(struct nfp_cpp *cpp, struct nfp_nsp *nsp)
nfp_eth_port_translate(nsp, &entries[i], i,
&table->ports[j++]);
- nfp_eth_mark_split_ports(cpp, table);
+ nfp_eth_calc_port_geometry(cpp, table);
for (i = 0; i < table->count; i++)
nfp_eth_calc_port_type(cpp, &table->ports[i]);
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c
index 2d15a7c9d0de..072612263dab 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c
@@ -181,7 +181,8 @@ err_unlock_dev:
struct nfp_resource *
nfp_resource_acquire(struct nfp_cpp *cpp, const char *name)
{
- unsigned long warn_at = jiffies + 15 * HZ;
+ unsigned long warn_at = jiffies + NFP_MUTEX_WAIT_FIRST_WARN * HZ;
+ unsigned long err_at = jiffies + NFP_MUTEX_WAIT_ERROR * HZ;
struct nfp_cpp_mutex *dev_mutex;
struct nfp_resource *res;
int err;
@@ -214,10 +215,15 @@ nfp_resource_acquire(struct nfp_cpp *cpp, const char *name)
}
if (time_is_before_eq_jiffies(warn_at)) {
- warn_at = jiffies + 60 * HZ;
+ warn_at = jiffies + NFP_MUTEX_WAIT_NEXT_WARN * HZ;
nfp_warn(cpp, "Warning: waiting for NFP resource %s\n",
name);
}
+ if (time_is_before_eq_jiffies(err_at)) {
+ nfp_err(cpp, "Error: resource %s timed out\n", name);
+ err = -EBUSY;
+ goto err_free;
+ }
}
nfp_cpp_mutex_free(dev_mutex);
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_rtsym.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_rtsym.c
index 0e3870ecfb8c..ecda474ac7c3 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_rtsym.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_rtsym.c
@@ -65,7 +65,8 @@ struct nfp_rtsym_entry {
__le32 size_lo;
};
-struct nfp_rtsym_cache {
+struct nfp_rtsym_table {
+ struct nfp_cpp *cpp;
int num;
char *strtab;
struct nfp_rtsym symtab[];
@@ -78,7 +79,7 @@ static int nfp_meid(u8 island_id, u8 menum)
}
static void
-nfp_rtsym_sw_entry_init(struct nfp_rtsym_cache *cache, u32 strtab_size,
+nfp_rtsym_sw_entry_init(struct nfp_rtsym_table *cache, u32 strtab_size,
struct nfp_rtsym *sw, struct nfp_rtsym_entry *fw)
{
sw->type = fw->type;
@@ -106,26 +107,36 @@ nfp_rtsym_sw_entry_init(struct nfp_rtsym_cache *cache, u32 strtab_size,
sw->domain = -1;
}
-static int nfp_rtsymtab_probe(struct nfp_cpp *cpp)
+struct nfp_rtsym_table *nfp_rtsym_table_read(struct nfp_cpp *cpp)
+{
+ struct nfp_rtsym_table *rtbl;
+ const struct nfp_mip *mip;
+
+ mip = nfp_mip_open(cpp);
+ rtbl = __nfp_rtsym_table_read(cpp, mip);
+ nfp_mip_close(mip);
+
+ return rtbl;
+}
+
+struct nfp_rtsym_table *
+__nfp_rtsym_table_read(struct nfp_cpp *cpp, const struct nfp_mip *mip)
{
const u32 dram = NFP_CPP_ID(NFP_CPP_TARGET_MU, NFP_CPP_ACTION_RW, 0) |
NFP_ISL_EMEM0;
u32 strtab_addr, symtab_addr, strtab_size, symtab_size;
struct nfp_rtsym_entry *rtsymtab;
- struct nfp_rtsym_cache *cache;
- const struct nfp_mip *mip;
+ struct nfp_rtsym_table *cache;
int err, n, size;
- mip = nfp_mip_open(cpp);
if (!mip)
- return -EIO;
+ return NULL;
nfp_mip_strtab(mip, &strtab_addr, &strtab_size);
nfp_mip_symtab(mip, &symtab_addr, &symtab_size);
- nfp_mip_close(mip);
if (!symtab_size || !strtab_size || symtab_size % sizeof(*rtsymtab))
- return -ENXIO;
+ return NULL;
/* Align to 64 bits */
symtab_size = round_up(symtab_size, 8);
@@ -133,27 +144,26 @@ static int nfp_rtsymtab_probe(struct nfp_cpp *cpp)
rtsymtab = kmalloc(symtab_size, GFP_KERNEL);
if (!rtsymtab)
- return -ENOMEM;
+ return NULL;
size = sizeof(*cache);
size += symtab_size / sizeof(*rtsymtab) * sizeof(struct nfp_rtsym);
size += strtab_size + 1;
cache = kmalloc(size, GFP_KERNEL);
- if (!cache) {
- err = -ENOMEM;
- goto err_free_rtsym_raw;
- }
+ if (!cache)
+ goto exit_free_rtsym_raw;
+ cache->cpp = cpp;
cache->num = symtab_size / sizeof(*rtsymtab);
cache->strtab = (void *)&cache->symtab[cache->num];
err = nfp_cpp_read(cpp, dram, symtab_addr, rtsymtab, symtab_size);
if (err != symtab_size)
- goto err_free_cache;
+ goto exit_free_cache;
err = nfp_cpp_read(cpp, dram, strtab_addr, cache->strtab, strtab_size);
if (err != strtab_size)
- goto err_free_cache;
+ goto exit_free_cache;
cache->strtab[strtab_size] = '\0';
for (n = 0; n < cache->num; n++)
@@ -161,97 +171,71 @@ static int nfp_rtsymtab_probe(struct nfp_cpp *cpp)
&cache->symtab[n], &rtsymtab[n]);
kfree(rtsymtab);
- nfp_rtsym_cache_set(cpp, cache);
- return 0;
-err_free_cache:
+ return cache;
+
+exit_free_cache:
kfree(cache);
-err_free_rtsym_raw:
+exit_free_rtsym_raw:
kfree(rtsymtab);
- return err;
-}
-
-static struct nfp_rtsym_cache *nfp_rtsym(struct nfp_cpp *cpp)
-{
- struct nfp_rtsym_cache *cache;
- int err;
-
- cache = nfp_rtsym_cache(cpp);
- if (cache)
- return cache;
-
- err = nfp_rtsymtab_probe(cpp);
- if (err < 0)
- return ERR_PTR(err);
-
- return nfp_rtsym_cache(cpp);
+ return NULL;
}
/**
* nfp_rtsym_count() - Get the number of RTSYM descriptors
- * @cpp: NFP CPP handle
+ * @rtbl: NFP RTsym table
*
- * Return: Number of RTSYM descriptors, or -ERRNO
+ * Return: Number of RTSYM descriptors
*/
-int nfp_rtsym_count(struct nfp_cpp *cpp)
+int nfp_rtsym_count(struct nfp_rtsym_table *rtbl)
{
- struct nfp_rtsym_cache *cache;
-
- cache = nfp_rtsym(cpp);
- if (IS_ERR(cache))
- return PTR_ERR(cache);
-
- return cache->num;
+ if (!rtbl)
+ return -EINVAL;
+ return rtbl->num;
}
/**
* nfp_rtsym_get() - Get the Nth RTSYM descriptor
- * @cpp: NFP CPP handle
+ * @rtbl: NFP RTsym table
* @idx: Index (0-based) of the RTSYM descriptor
*
* Return: const pointer to a struct nfp_rtsym descriptor, or NULL
*/
-const struct nfp_rtsym *nfp_rtsym_get(struct nfp_cpp *cpp, int idx)
+const struct nfp_rtsym *nfp_rtsym_get(struct nfp_rtsym_table *rtbl, int idx)
{
- struct nfp_rtsym_cache *cache;
-
- cache = nfp_rtsym(cpp);
- if (IS_ERR(cache))
+ if (!rtbl)
return NULL;
-
- if (idx >= cache->num)
+ if (idx >= rtbl->num)
return NULL;
- return &cache->symtab[idx];
+ return &rtbl->symtab[idx];
}
/**
* nfp_rtsym_lookup() - Return the RTSYM descriptor for a symbol name
- * @cpp: NFP CPP handle
+ * @rtbl: NFP RTsym table
* @name: Symbol name
*
* Return: const pointer to a struct nfp_rtsym descriptor, or NULL
*/
-const struct nfp_rtsym *nfp_rtsym_lookup(struct nfp_cpp *cpp, const char *name)
+const struct nfp_rtsym *
+nfp_rtsym_lookup(struct nfp_rtsym_table *rtbl, const char *name)
{
- struct nfp_rtsym_cache *cache;
int n;
- cache = nfp_rtsym(cpp);
- if (IS_ERR(cache))
+ if (!rtbl)
return NULL;
- for (n = 0; n < cache->num; n++) {
- if (strcmp(name, cache->symtab[n].name) == 0)
- return &cache->symtab[n];
- }
+ for (n = 0; n < rtbl->num; n++)
+ if (strcmp(name, rtbl->symtab[n].name) == 0)
+ return &rtbl->symtab[n];
return NULL;
}
/**
* nfp_rtsym_read_le() - Read a simple unsigned scalar value from symbol
- * @cpp: NFP CPP handle
+ * @rtbl: NFP RTsym table
* @name: Symbol name
* @error: Poniter to error code (optional)
*
@@ -261,14 +245,15 @@ const struct nfp_rtsym *nfp_rtsym_lookup(struct nfp_cpp *cpp, const char *name)
*
* Return: value read, on error sets the error and returns ~0ULL.
*/
-u64 nfp_rtsym_read_le(struct nfp_cpp *cpp, const char *name, int *error)
+u64 nfp_rtsym_read_le(struct nfp_rtsym_table *rtbl, const char *name,
+ int *error)
{
const struct nfp_rtsym *sym;
u32 val32, id;
u64 val;
int err;
- sym = nfp_rtsym_lookup(cpp, name);
+ sym = nfp_rtsym_lookup(rtbl, name);
if (!sym) {
err = -ENOENT;
goto exit;
@@ -278,14 +263,14 @@ u64 nfp_rtsym_read_le(struct nfp_cpp *cpp, const char *name, int *error)
switch (sym->size) {
case 4:
- err = nfp_cpp_readl(cpp, id, sym->addr, &val32);
+ err = nfp_cpp_readl(rtbl->cpp, id, sym->addr, &val32);
val = val32;
break;
case 8:
- err = nfp_cpp_readq(cpp, id, sym->addr, &val);
+ err = nfp_cpp_readq(rtbl->cpp, id, sym->addr, &val);
break;
default:
- nfp_err(cpp,
+ nfp_err(rtbl->cpp,
"rtsym '%s' unsupported or non-scalar size: %lld\n",
name, sym->size);
err = -EINVAL;
@@ -304,3 +289,30 @@ exit:
return ~0ULL;
return val;
}
+
+u8 __iomem *
+nfp_rtsym_map(struct nfp_rtsym_table *rtbl, const char *name, const char *id,
+ unsigned int min_size, struct nfp_cpp_area **area)
+{
+ const struct nfp_rtsym *sym;
+ u8 __iomem *mem;
+
+ sym = nfp_rtsym_lookup(rtbl, name);
+ if (!sym)
+ return (u8 __iomem *)ERR_PTR(-ENOENT);
+
+ if (sym->size < min_size) {
+ nfp_err(rtbl->cpp, "Symbol %s too small\n", name);
+ return (u8 __iomem *)ERR_PTR(-EINVAL);
+ }
+
+ mem = nfp_cpp_map_area(rtbl->cpp, id, sym->domain, sym->target,
+ sym->addr, sym->size, area);
+ if (IS_ERR(mem)) {
+ nfp_err(rtbl->cpp, "Failed to map symbol %s: %ld\n",
+ name, PTR_ERR(mem));
+ return mem;
+ }
+
+ return mem;
+}
diff --git a/drivers/net/ethernet/netronome/nfp/nic/main.c b/drivers/net/ethernet/netronome/nfp/nic/main.c
new file mode 100644
index 000000000000..520684242b7d
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nic/main.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "../nfpcore/nfp_cpp.h"
+#include "../nfpcore/nfp_nsp.h"
+#include "../nfp_app.h"
+#include "../nfp_main.h"
+
+static int nfp_nic_init(struct nfp_app *app)
+{
+ struct nfp_pf *pf = app->pf;
+
+ if (pf->eth_tbl && pf->max_data_vnics != pf->eth_tbl->count) {
+ nfp_err(pf->cpp, "ETH entries don't match vNICs (%d vs %d)\n",
+ pf->max_data_vnics, pf->eth_tbl->count);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+const struct nfp_app_type app_nic = {
+ .id = NFP_APP_CORE_NIC,
+ .name = "nic",
+
+ .init = nfp_nic_init,
+ .vnic_init = nfp_app_nic_vnic_init,
+};