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authorChopra, Manish <Manish.Chopra@cavium.com>2017-07-26 06:07:09 -0700
committerDavid S. Miller <davem@davemloft.net>2017-07-27 00:05:22 -0700
commitec9b8dbd825dd3a0667003b5ab56386214f9c648 (patch)
treeca7a3699af1041b550fb1daeabc92311c0553ce5 /drivers/net/ethernet/qlogic/qede/qede_filter.c
parentMerge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue (diff)
downloadlinux-dev-ec9b8dbd825dd3a0667003b5ab56386214f9c648.tar.xz
linux-dev-ec9b8dbd825dd3a0667003b5ab56386214f9c648.zip
qede: Add getter APIs support for RX flow classification
This patch adds support for ethtool getter APIs to query RX flow classification rules. Signed-off-by: Manish Chopra <manish.chopra@cavium.com> Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qede/qede_filter.c')
-rw-r--r--drivers/net/ethernet/qlogic/qede/qede_filter.c120
1 files changed, 119 insertions, 1 deletions
diff --git a/drivers/net/ethernet/qlogic/qede/qede_filter.c b/drivers/net/ethernet/qlogic/qede/qede_filter.c
index f939db5bac5f..a5e5d328e730 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_filter.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_filter.c
@@ -38,7 +38,6 @@
#include <linux/qed/qed_if.h>
#include "qede.h"
-#ifdef CONFIG_RFS_ACCEL
struct qede_arfs_tuple {
union {
__be32 src_ipv4;
@@ -80,6 +79,7 @@ struct qede_arfs_fltr_node {
};
struct qede_arfs {
+#define QEDE_ARFS_BUCKET_HEAD(edev, idx) (&(edev)->arfs->arfs_hl_head[idx])
#define QEDE_ARFS_POLL_COUNT 100
#define QEDE_RFS_FLW_BITSHIFT (4)
#define QEDE_RFS_FLW_MASK ((1 << QEDE_RFS_FLW_BITSHIFT) - 1)
@@ -92,6 +92,7 @@ struct qede_arfs {
bool enable;
};
+#ifdef CONFIG_RFS_ACCEL
static void qede_configure_arfs_fltr(struct qede_dev *edev,
struct qede_arfs_fltr_node *n,
u16 rxq_id, bool add_fltr)
@@ -1263,3 +1264,120 @@ void qede_config_rx_mode(struct net_device *ndev)
out:
kfree(uc_macs);
}
+
+static struct qede_arfs_fltr_node *
+qede_get_arfs_fltr_by_loc(struct hlist_head *head, u32 location)
+{
+ struct qede_arfs_fltr_node *fltr;
+
+ hlist_for_each_entry(fltr, head, node)
+ if (location == fltr->sw_id)
+ return fltr;
+
+ return NULL;
+}
+
+int qede_get_cls_rule_all(struct qede_dev *edev, struct ethtool_rxnfc *info,
+ u32 *rule_locs)
+{
+ struct qede_arfs_fltr_node *fltr;
+ struct hlist_head *head;
+ int cnt = 0, rc = 0;
+
+ info->data = QEDE_RFS_MAX_FLTR;
+
+ __qede_lock(edev);
+
+ if (!edev->arfs) {
+ rc = -EPERM;
+ goto unlock;
+ }
+
+ head = QEDE_ARFS_BUCKET_HEAD(edev, 0);
+
+ hlist_for_each_entry(fltr, head, node) {
+ if (cnt == info->rule_cnt) {
+ rc = -EMSGSIZE;
+ goto unlock;
+ }
+
+ rule_locs[cnt] = fltr->sw_id;
+ cnt++;
+ }
+
+ info->rule_cnt = cnt;
+
+unlock:
+ __qede_unlock(edev);
+ return rc;
+}
+
+int qede_get_cls_rule_entry(struct qede_dev *edev, struct ethtool_rxnfc *cmd)
+{
+ struct ethtool_rx_flow_spec *fsp = &cmd->fs;
+ struct qede_arfs_fltr_node *fltr = NULL;
+ int rc = 0;
+
+ cmd->data = QEDE_RFS_MAX_FLTR;
+
+ __qede_lock(edev);
+
+ if (!edev->arfs) {
+ rc = -EPERM;
+ goto unlock;
+ }
+
+ fltr = qede_get_arfs_fltr_by_loc(QEDE_ARFS_BUCKET_HEAD(edev, 0),
+ fsp->location);
+ if (!fltr) {
+ DP_NOTICE(edev, "Rule not found - location=0x%x\n",
+ fsp->location);
+ rc = -EINVAL;
+ goto unlock;
+ }
+
+ if (fltr->tuple.eth_proto == htons(ETH_P_IP)) {
+ if (fltr->tuple.ip_proto == IPPROTO_TCP)
+ fsp->flow_type = TCP_V4_FLOW;
+ else
+ fsp->flow_type = UDP_V4_FLOW;
+
+ fsp->h_u.tcp_ip4_spec.psrc = fltr->tuple.src_port;
+ fsp->h_u.tcp_ip4_spec.pdst = fltr->tuple.dst_port;
+ fsp->h_u.tcp_ip4_spec.ip4src = fltr->tuple.src_ipv4;
+ fsp->h_u.tcp_ip4_spec.ip4dst = fltr->tuple.dst_ipv4;
+ } else {
+ if (fltr->tuple.ip_proto == IPPROTO_TCP)
+ fsp->flow_type = TCP_V6_FLOW;
+ else
+ fsp->flow_type = UDP_V6_FLOW;
+ fsp->h_u.tcp_ip6_spec.psrc = fltr->tuple.src_port;
+ fsp->h_u.tcp_ip6_spec.pdst = fltr->tuple.dst_port;
+ memcpy(&fsp->h_u.tcp_ip6_spec.ip6src,
+ &fltr->tuple.src_ipv6, sizeof(struct in6_addr));
+ memcpy(&fsp->h_u.tcp_ip6_spec.ip6dst,
+ &fltr->tuple.dst_ipv6, sizeof(struct in6_addr));
+ }
+
+ fsp->ring_cookie = fltr->rxq_id;
+
+unlock:
+ __qede_unlock(edev);
+ return rc;
+}
+
+int qede_get_arfs_filter_count(struct qede_dev *edev)
+{
+ int count = 0;
+
+ __qede_lock(edev);
+
+ if (!edev->arfs)
+ goto unlock;
+
+ count = edev->arfs->filter_count;
+
+unlock:
+ __qede_unlock(edev);
+ return count;
+}