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-rw-r--r--drivers/net/ethernet/emulex/benet/be.h15
-rw-r--r--drivers/net/ethernet/emulex/benet/be_cmds.c52
-rw-r--r--drivers/net/ethernet/emulex/benet/be_cmds.h8
-rw-r--r--drivers/net/ethernet/emulex/benet/be_main.c85
4 files changed, 130 insertions, 30 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index ee0bdb772b21..e1e6c40a5f8b 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -97,7 +97,8 @@
* SURF/DPDK
*/
-#define MAX_RSS_IFACES 15
+#define MAX_PORT_RSS_TABLES 15
+#define MAX_NIC_FUNCS 16
#define MAX_RX_QS 32
#define MAX_EVT_QS 32
#define MAX_TX_QS 32
@@ -445,6 +446,16 @@ struct be_resources {
u32 if_cap_flags;
u32 vf_if_cap_flags; /* VF if capability flags */
u32 flags;
+ /* Calculated PF Pool's share of RSS Tables. This is not enforced by
+ * the FW, but is a self-imposed driver limitation.
+ */
+ u16 max_rss_tables;
+};
+
+/* These are port-wide values */
+struct be_port_resources {
+ u16 max_vfs;
+ u16 nic_pfs;
};
#define be_is_os2bmc_enabled(adapter) (adapter->flags & BE_FLAGS_OS2BMC)
@@ -635,6 +646,8 @@ struct be_adapter {
#define be_max_rxqs(adapter) (adapter->res.max_rx_qs)
#define be_max_eqs(adapter) (adapter->res.max_evt_qs)
#define be_if_cap_flags(adapter) (adapter->res.if_cap_flags)
+#define be_max_pf_pool_rss_tables(adapter) \
+ (adapter->pool_res.max_rss_tables)
static inline u16 be_max_qs(struct be_adapter *adapter)
{
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index ddc8611c8432..29aeb91cba49 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -4363,9 +4363,35 @@ err:
return status;
}
+/* This routine returns a list of all the NIC PF_nums in the adapter */
+u16 be_get_nic_pf_num_list(u8 *buf, u32 desc_count, u16 *nic_pf_nums)
+{
+ struct be_res_desc_hdr *hdr = (struct be_res_desc_hdr *)buf;
+ struct be_pcie_res_desc *pcie = NULL;
+ int i;
+ u16 nic_pf_count = 0;
+
+ for (i = 0; i < desc_count; i++) {
+ if (hdr->desc_type == PCIE_RESOURCE_DESC_TYPE_V0 ||
+ hdr->desc_type == PCIE_RESOURCE_DESC_TYPE_V1) {
+ pcie = (struct be_pcie_res_desc *)hdr;
+ if (pcie->pf_state && (pcie->pf_type == MISSION_NIC ||
+ pcie->pf_type == MISSION_RDMA)) {
+ nic_pf_nums[nic_pf_count++] = pcie->pf_num;
+ }
+ }
+
+ hdr->desc_len = hdr->desc_len ? : RESOURCE_DESC_SIZE_V0;
+ hdr = (void *)hdr + hdr->desc_len;
+ }
+ return nic_pf_count;
+}
+
/* Will use MBOX only if MCCQ has not been created */
int be_cmd_get_profile_config(struct be_adapter *adapter,
- struct be_resources *res, u8 query, u8 domain)
+ struct be_resources *res,
+ struct be_port_resources *port_res,
+ u8 profile_type, u8 query, u8 domain)
{
struct be_cmd_resp_get_profile_config *resp;
struct be_cmd_req_get_profile_config *req;
@@ -4392,7 +4418,7 @@ int be_cmd_get_profile_config(struct be_adapter *adapter,
if (!lancer_chip(adapter))
req->hdr.version = 1;
- req->type = ACTIVE_PROFILE_TYPE;
+ req->type = profile_type;
req->hdr.domain = domain;
/* When QUERY_MODIFIABLE_FIELDS_TYPE bit is set, cmd returns the
@@ -4409,6 +4435,28 @@ int be_cmd_get_profile_config(struct be_adapter *adapter,
resp = cmd.va;
desc_count = le16_to_cpu(resp->desc_count);
+ if (port_res) {
+ u16 nic_pf_cnt = 0, i;
+ u16 nic_pf_num_list[MAX_NIC_FUNCS];
+
+ nic_pf_cnt = be_get_nic_pf_num_list(resp->func_param,
+ desc_count,
+ nic_pf_num_list);
+
+ for (i = 0; i < nic_pf_cnt; i++) {
+ nic = be_get_func_nic_desc(resp->func_param, desc_count,
+ nic_pf_num_list[i]);
+ if (nic->link_param == adapter->port_num) {
+ port_res->nic_pfs++;
+ pcie = be_get_pcie_desc(resp->func_param,
+ desc_count,
+ nic_pf_num_list[i]);
+ port_res->max_vfs += le16_to_cpu(pcie->num_vfs);
+ }
+ }
+ return status;
+ }
+
pcie = be_get_pcie_desc(resp->func_param, desc_count,
adapter->pf_num);
if (pcie)
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 855a1702c5a9..cb96ddd90b6e 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -2130,6 +2130,9 @@ struct be_cmd_req_set_ext_fat_caps {
#define IMM_SHIFT 6 /* Immediate */
#define NOSV_SHIFT 7 /* No save */
+#define MISSION_NIC 1
+#define MISSION_RDMA 8
+
struct be_res_desc_hdr {
u8 desc_type;
u8 desc_len;
@@ -2246,6 +2249,7 @@ struct be_cmd_req_get_profile_config {
struct be_cmd_req_hdr hdr;
u8 rsvd;
#define ACTIVE_PROFILE_TYPE 0x2
+#define SAVED_PROFILE_TYPE 0x0
#define QUERY_MODIFIABLE_FIELDS_TYPE BIT(3)
u8 type;
u16 rsvd1;
@@ -2451,7 +2455,9 @@ int be_cmd_query_port_name(struct be_adapter *adapter);
int be_cmd_get_func_config(struct be_adapter *adapter,
struct be_resources *res);
int be_cmd_get_profile_config(struct be_adapter *adapter,
- struct be_resources *res, u8 query, u8 domain);
+ struct be_resources *res,
+ struct be_port_resources *port_res,
+ u8 profile_type, u8 query, u8 domain);
int be_cmd_get_active_profile(struct be_adapter *adapter, u16 *profile);
int be_cmd_get_if_id(struct be_adapter *adapter, struct be_vf_cfg *vf_cfg,
int vf_num);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 32823a7feb57..2451a47e88ab 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -3784,28 +3784,27 @@ static void be_calculate_vf_res(struct be_adapter *adapter, u16 num_vfs,
struct be_resources res_mod = {0};
u16 num_vf_qs = 1;
- /* Distribute the queue resources among the PF and it's VFs
- * Do not distribute queue resources in multi-channel configuration.
- */
- if (num_vfs && !be_is_mc(adapter)) {
- /* Divide the rx queues evenly among the VFs and the PF, capped
- * at VF-EQ-count. Any remainder queues belong to the PF.
- */
+ /* Distribute the queue resources among the PF and it's VFs */
+ if (num_vfs) {
+ /* Divide the rx queues evenly among the VFs and the PF, capped
+ * at VF-EQ-count. Any remainder queues belong to the PF.
+ */
num_vf_qs = min(SH_VF_MAX_NIC_EQS,
res.max_rss_qs / (num_vfs + 1));
- /* Skyhawk-R chip supports only MAX_RSS_IFACES RSS capable
- * interfaces per port. Provide RSS on VFs, only if number
- * of VFs requested is less than MAX_RSS_IFACES limit.
+ /* Skyhawk-R chip supports only MAX_PORT_RSS_TABLES
+ * RSS Tables per port. Provide RSS on VFs, only if number of
+ * VFs requested is less than it's PF Pool's RSS Tables limit.
*/
- if (num_vfs >= MAX_RSS_IFACES)
+ if (num_vfs >= be_max_pf_pool_rss_tables(adapter))
num_vf_qs = 1;
}
/* Resource with fields set to all '1's by GET_PROFILE_CONFIG cmd,
* which are modifiable using SET_PROFILE_CONFIG cmd.
*/
- be_cmd_get_profile_config(adapter, &res_mod, RESOURCE_MODIFIABLE, 0);
+ be_cmd_get_profile_config(adapter, &res_mod, NULL, ACTIVE_PROFILE_TYPE,
+ RESOURCE_MODIFIABLE, 0);
/* If RSS IFACE capability flags are modifiable for a VF, set the
* capability flag as valid and set RSS and DEFQ_RSS IFACE flags if
@@ -3903,7 +3902,8 @@ static int be_vfs_if_create(struct be_adapter *adapter)
for_all_vfs(adapter, vf_cfg, vf) {
if (!BE3_chip(adapter)) {
- status = be_cmd_get_profile_config(adapter, &res,
+ status = be_cmd_get_profile_config(adapter, &res, NULL,
+ ACTIVE_PROFILE_TYPE,
RESOURCE_LIMITS,
vf + 1);
if (!status) {
@@ -4088,8 +4088,9 @@ static void BEx_get_resources(struct be_adapter *adapter,
/* On a SuperNIC profile, the driver needs to use the
* GET_PROFILE_CONFIG cmd to query the per-function TXQ limits
*/
- be_cmd_get_profile_config(adapter, &super_nic_res,
- RESOURCE_LIMITS, 0);
+ be_cmd_get_profile_config(adapter, &super_nic_res, NULL,
+ ACTIVE_PROFILE_TYPE, RESOURCE_LIMITS,
+ 0);
/* Some old versions of BE3 FW don't report max_tx_qs value */
res->max_tx_qs = super_nic_res.max_tx_qs ? : BE3_MAX_TX_QS;
} else {
@@ -4128,12 +4129,38 @@ static void be_setup_init(struct be_adapter *adapter)
adapter->cmd_privileges = MIN_PRIVILEGES;
}
+/* HW supports only MAX_PORT_RSS_TABLES RSS Policy Tables per port.
+ * However, this HW limitation is not exposed to the host via any SLI cmd.
+ * As a result, in the case of SRIOV and in particular multi-partition configs
+ * the driver needs to calcuate a proportional share of RSS Tables per PF-pool
+ * for distribution between the VFs. This self-imposed limit will determine the
+ * no: of VFs for which RSS can be enabled.
+ */
+void be_calculate_pf_pool_rss_tables(struct be_adapter *adapter)
+{
+ struct be_port_resources port_res = {0};
+ u8 rss_tables_on_port;
+ u16 max_vfs = be_max_vfs(adapter);
+
+ be_cmd_get_profile_config(adapter, NULL, &port_res, SAVED_PROFILE_TYPE,
+ RESOURCE_LIMITS, 0);
+
+ rss_tables_on_port = MAX_PORT_RSS_TABLES - port_res.nic_pfs;
+
+ /* Each PF Pool's RSS Tables limit =
+ * PF's Max VFs / Total_Max_VFs on Port * RSS Tables on Port
+ */
+ adapter->pool_res.max_rss_tables =
+ max_vfs * rss_tables_on_port / port_res.max_vfs;
+}
+
static int be_get_sriov_config(struct be_adapter *adapter)
{
struct be_resources res = {0};
int max_vfs, old_vfs;
- be_cmd_get_profile_config(adapter, &res, RESOURCE_LIMITS, 0);
+ be_cmd_get_profile_config(adapter, &res, NULL, ACTIVE_PROFILE_TYPE,
+ RESOURCE_LIMITS, 0);
/* Some old versions of BE3 FW don't report max_vfs value */
if (BE3_chip(adapter) && !res.max_vfs) {
@@ -4157,6 +4184,12 @@ static int be_get_sriov_config(struct be_adapter *adapter)
adapter->num_vfs = old_vfs;
}
+ if (skyhawk_chip(adapter) && be_max_vfs(adapter) && !old_vfs) {
+ be_calculate_pf_pool_rss_tables(adapter);
+ dev_info(&adapter->pdev->dev,
+ "RSS can be enabled for all VFs if num_vfs <= %d\n",
+ be_max_pf_pool_rss_tables(adapter));
+ }
return 0;
}
@@ -4272,15 +4305,6 @@ static int be_get_config(struct be_adapter *adapter)
"Using profile 0x%x\n", profile_id);
}
- status = be_get_resources(adapter);
- if (status)
- return status;
-
- adapter->pmac_id = kcalloc(be_max_uc(adapter),
- sizeof(*adapter->pmac_id), GFP_KERNEL);
- if (!adapter->pmac_id)
- return -ENOMEM;
-
return 0;
}
@@ -4481,13 +4505,22 @@ static int be_setup(struct be_adapter *adapter)
return status;
}
+ status = be_get_config(adapter);
+ if (status)
+ goto err;
+
if (!BE2_chip(adapter) && be_physfn(adapter))
be_alloc_sriov_res(adapter);
- status = be_get_config(adapter);
+ status = be_get_resources(adapter);
if (status)
goto err;
+ adapter->pmac_id = kcalloc(be_max_uc(adapter),
+ sizeof(*adapter->pmac_id), GFP_KERNEL);
+ if (!adapter->pmac_id)
+ return -ENOMEM;
+
status = be_msix_enable(adapter);
if (status)
goto err;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.