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-rw-r--r--drivers/net/ethernet/emulex/benet/be.h8
-rw-r--r--drivers/net/ethernet/emulex/benet/be_cmds.c108
-rw-r--r--drivers/net/ethernet/emulex/benet/be_cmds.h8
-rw-r--r--drivers/net/ethernet/emulex/benet/be_main.c129
4 files changed, 178 insertions, 75 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 37477ee3638b..d3d871b28cad 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -501,6 +501,7 @@ struct be_adapter {
u32 flash_status;
struct completion et_cmd_compl;
+ struct be_resources pool_res; /* resources available for the port */
struct be_resources res; /* resources available for the func */
u16 num_vfs; /* Number of VFs provisioned by PF */
u8 virtfn;
@@ -524,9 +525,8 @@ struct be_adapter {
#define be_physfn(adapter) (!adapter->virtfn)
#define be_virtfn(adapter) (adapter->virtfn)
-#define sriov_enabled(adapter) (adapter->num_vfs > 0)
-#define sriov_want(adapter) (be_physfn(adapter) && \
- (num_vfs || pci_num_vf(adapter->pdev)))
+#define sriov_enabled(adapter) (adapter->num_vfs > 0)
+
#define for_all_vfs(adapter, vf_cfg, i) \
for (i = 0, vf_cfg = &adapter->vf_cfg[i]; i < adapter->num_vfs; \
i++, vf_cfg++)
@@ -537,7 +537,7 @@ struct be_adapter {
#define be_max_vlans(adapter) (adapter->res.max_vlans)
#define be_max_uc(adapter) (adapter->res.max_uc_mac)
#define be_max_mc(adapter) (adapter->res.max_mcast_mac)
-#define be_max_vfs(adapter) (adapter->res.max_vfs)
+#define be_max_vfs(adapter) (adapter->pool_res.max_vfs)
#define be_max_rss(adapter) (adapter->res.max_rss_qs)
#define be_max_txqs(adapter) (adapter->res.max_tx_qs)
#define be_max_prio_txqs(adapter) (adapter->res.max_prio_tx_qs)
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 68d200667aac..9904bbfd4e93 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -3523,38 +3523,39 @@ err:
return status;
}
-int be_cmd_set_profile_config(struct be_adapter *adapter, void *desc,
- int size, u8 version, u8 domain)
+/* Will use MBOX only if MCCQ has not been created */
+static int be_cmd_set_profile_config(struct be_adapter *adapter, void *desc,
+ int size, int count, u8 version, u8 domain)
{
struct be_cmd_req_set_profile_config *req;
- struct be_mcc_wrb *wrb;
+ struct be_mcc_wrb wrb = {0};
+ struct be_dma_mem cmd;
int status;
- spin_lock_bh(&adapter->mcc_lock);
-
- wrb = wrb_from_mccq(adapter);
- if (!wrb) {
- status = -EBUSY;
- goto err;
- }
+ memset(&cmd, 0, sizeof(struct be_dma_mem));
+ cmd.size = sizeof(struct be_cmd_req_set_profile_config);
+ cmd.va = pci_alloc_consistent(adapter->pdev, cmd.size, &cmd.dma);
+ if (!cmd.va)
+ return -ENOMEM;
- req = embedded_payload(wrb);
+ req = cmd.va;
be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
- OPCODE_COMMON_SET_PROFILE_CONFIG, sizeof(*req),
- wrb, NULL);
+ OPCODE_COMMON_SET_PROFILE_CONFIG, cmd.size,
+ &wrb, &cmd);
req->hdr.version = version;
req->hdr.domain = domain;
- req->desc_count = cpu_to_le32(1);
+ req->desc_count = cpu_to_le32(count);
memcpy(req->desc, desc, size);
- status = be_mcc_notify_wait(adapter);
-err:
- spin_unlock_bh(&adapter->mcc_lock);
+ status = be_cmd_notify_wait(adapter, &wrb);
+
+ if (cmd.va)
+ pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma);
return status;
}
/* Mark all fields invalid */
-void be_reset_nic_desc(struct be_nic_res_desc *nic)
+static void be_reset_nic_desc(struct be_nic_res_desc *nic)
{
memset(nic, 0, sizeof(*nic));
nic->unicast_mac_count = 0xFFFF;
@@ -3575,9 +3576,20 @@ void be_reset_nic_desc(struct be_nic_res_desc *nic)
nic->wol_param = 0x0F;
nic->tunnel_iface_count = 0xFFFF;
nic->direct_tenant_iface_count = 0xFFFF;
+ nic->bw_min = 0xFFFFFFFF;
nic->bw_max = 0xFFFFFFFF;
}
+/* Mark all fields invalid */
+static void be_reset_pcie_desc(struct be_pcie_res_desc *pcie)
+{
+ memset(pcie, 0, sizeof(*pcie));
+ pcie->sriov_state = 0xFF;
+ pcie->pf_state = 0xFF;
+ pcie->pf_type = 0xFF;
+ pcie->num_vfs = 0xFFFF;
+}
+
int be_cmd_config_qos(struct be_adapter *adapter, u32 max_rate, u16 link_speed,
u8 domain)
{
@@ -3608,7 +3620,63 @@ int be_cmd_config_qos(struct be_adapter *adapter, u32 max_rate, u16 link_speed,
return be_cmd_set_profile_config(adapter, &nic_desc,
nic_desc.hdr.desc_len,
- version, domain);
+ 1, version, domain);
+}
+
+int be_cmd_set_sriov_config(struct be_adapter *adapter,
+ struct be_resources res, u16 num_vfs)
+{
+ struct {
+ struct be_pcie_res_desc pcie;
+ struct be_nic_res_desc nic_vft;
+ } __packed desc;
+ u16 vf_q_count;
+
+ if (BEx_chip(adapter) || lancer_chip(adapter))
+ return 0;
+
+ /* PF PCIE descriptor */
+ be_reset_pcie_desc(&desc.pcie);
+ desc.pcie.hdr.desc_type = PCIE_RESOURCE_DESC_TYPE_V1;
+ desc.pcie.hdr.desc_len = RESOURCE_DESC_SIZE_V1;
+ desc.pcie.flags = (1 << IMM_SHIFT) | (1 << NOSV_SHIFT);
+ desc.pcie.pf_num = adapter->pdev->devfn;
+ desc.pcie.sriov_state = num_vfs ? 1 : 0;
+ desc.pcie.num_vfs = cpu_to_le16(num_vfs);
+
+ /* VF NIC Template descriptor */
+ be_reset_nic_desc(&desc.nic_vft);
+ desc.nic_vft.hdr.desc_type = NIC_RESOURCE_DESC_TYPE_V1;
+ desc.nic_vft.hdr.desc_len = RESOURCE_DESC_SIZE_V1;
+ desc.nic_vft.flags = (1 << VFT_SHIFT) | (1 << IMM_SHIFT) |
+ (1 << NOSV_SHIFT);
+ desc.nic_vft.pf_num = adapter->pdev->devfn;
+ desc.nic_vft.vf_num = 0;
+
+ if (num_vfs && res.vf_if_cap_flags & BE_IF_FLAGS_RSS) {
+ /* If number of VFs requested is 8 less than max supported,
+ * assign 8 queue pairs to the PF and divide the remaining
+ * resources evenly among the VFs
+ */
+ if (num_vfs < (be_max_vfs(adapter) - 8))
+ vf_q_count = (res.max_rss_qs - 8) / num_vfs;
+ else
+ vf_q_count = res.max_rss_qs / num_vfs;
+
+ desc.nic_vft.rq_count = cpu_to_le16(vf_q_count);
+ desc.nic_vft.txq_count = cpu_to_le16(vf_q_count);
+ desc.nic_vft.rssq_count = cpu_to_le16(vf_q_count - 1);
+ desc.nic_vft.cq_count = cpu_to_le16(3 * vf_q_count);
+ } else {
+ desc.nic_vft.txq_count = cpu_to_le16(1);
+ desc.nic_vft.rq_count = cpu_to_le16(1);
+ desc.nic_vft.rssq_count = cpu_to_le16(0);
+ /* One CQ for each TX, RX and MCCQ */
+ desc.nic_vft.cq_count = cpu_to_le16(3);
+ }
+
+ return be_cmd_set_profile_config(adapter, &desc,
+ 2 * RESOURCE_DESC_SIZE_V1, 2, 1, 0);
}
int be_cmd_manage_iface(struct be_adapter *adapter, u32 iface, u8 op)
@@ -3660,7 +3728,7 @@ int be_cmd_set_vxlan_port(struct be_adapter *adapter, __be16 port)
}
return be_cmd_set_profile_config(adapter, &port_desc,
- RESOURCE_DESC_SIZE_V1, 1, 0);
+ RESOURCE_DESC_SIZE_V1, 1, 1, 0);
}
int be_cmd_get_if_id(struct be_adapter *adapter, struct be_vf_cfg *vf_cfg,
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 3c16e6c833ec..c0f7167049b7 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -1963,8 +1963,8 @@ struct be_cmd_req_set_profile_config {
struct be_cmd_req_hdr hdr;
u32 rsvd;
u32 desc_count;
- u8 desc[RESOURCE_DESC_SIZE_V1];
-};
+ u8 desc[2 * RESOURCE_DESC_SIZE_V1];
+} __packed;
struct be_cmd_resp_set_profile_config {
struct be_cmd_resp_hdr hdr;
@@ -2158,8 +2158,6 @@ 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 domain);
-int be_cmd_set_profile_config(struct be_adapter *adapter, void *desc,
- int size, u8 version, 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);
@@ -2169,3 +2167,5 @@ int be_cmd_set_logical_link_config(struct be_adapter *adapter,
int link_state, u8 domain);
int be_cmd_set_vxlan_port(struct be_adapter *adapter, __be16 port);
int be_cmd_manage_iface(struct be_adapter *adapter, u32 iface, u8 op);
+int be_cmd_set_sriov_config(struct be_adapter *adapter,
+ struct be_resources res, u16 num_vfs);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 75e6653128fc..a32dc4fbb73c 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -3098,6 +3098,13 @@ static int be_clear(struct be_adapter *adapter)
if (sriov_enabled(adapter))
be_vf_clear(adapter);
+ /* Re-configure FW to distribute resources evenly across max-supported
+ * number of VFs, only when VFs are not already enabled.
+ */
+ if (be_physfn(adapter) && !pci_vfs_assigned(adapter->pdev))
+ be_cmd_set_sriov_config(adapter, adapter->pool_res,
+ pci_sriov_get_totalvfs(adapter->pdev));
+
#ifdef CONFIG_BE2NET_VXLAN
be_disable_vxlan_offloads(adapter);
#endif
@@ -3170,19 +3177,6 @@ static int be_vf_setup(struct be_adapter *adapter)
u32 privileges;
old_vfs = pci_num_vf(adapter->pdev);
- if (old_vfs) {
- dev_info(dev, "%d VFs are already enabled\n", old_vfs);
- if (old_vfs != num_vfs)
- dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
- adapter->num_vfs = old_vfs;
- } else {
- if (num_vfs > be_max_vfs(adapter))
- dev_info(dev, "Device supports %d VFs and not %d\n",
- be_max_vfs(adapter), num_vfs);
- adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter));
- if (!adapter->num_vfs)
- return 0;
- }
status = be_vf_setup_init(adapter);
if (status)
@@ -3194,17 +3188,15 @@ static int be_vf_setup(struct be_adapter *adapter)
if (status)
goto err;
}
- } else {
- status = be_vfs_if_create(adapter);
- if (status)
- goto err;
- }
- if (old_vfs) {
status = be_vfs_mac_query(adapter);
if (status)
goto err;
} else {
+ status = be_vfs_if_create(adapter);
+ if (status)
+ goto err;
+
status = be_vf_eth_addr_config(adapter);
if (status)
goto err;
@@ -3270,19 +3262,7 @@ static u8 be_convert_mc_type(u32 function_mode)
static void BEx_get_resources(struct be_adapter *adapter,
struct be_resources *res)
{
- struct pci_dev *pdev = adapter->pdev;
- bool use_sriov = false;
- int max_vfs = 0;
-
- if (be_physfn(adapter) && BE3_chip(adapter)) {
- be_cmd_get_profile_config(adapter, res, 0);
- /* Some old versions of BE3 FW don't report max_vfs value */
- if (res->max_vfs == 0) {
- max_vfs = pci_sriov_get_totalvfs(pdev);
- res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
- }
- use_sriov = res->max_vfs && sriov_want(adapter);
- }
+ bool use_sriov = adapter->num_vfs ? 1 : 0;
if (be_physfn(adapter))
res->max_uc_mac = BE_UC_PMAC_COUNT;
@@ -3349,6 +3329,54 @@ static void be_setup_init(struct be_adapter *adapter)
adapter->cmd_privileges = MIN_PRIVILEGES;
}
+static int be_get_sriov_config(struct be_adapter *adapter)
+{
+ struct device *dev = &adapter->pdev->dev;
+ struct be_resources res = {0};
+ int status, max_vfs, old_vfs;
+
+ status = be_cmd_get_profile_config(adapter, &res, 0);
+ if (status)
+ return status;
+
+ adapter->pool_res = res;
+
+ /* Some old versions of BE3 FW don't report max_vfs value */
+ if (BE3_chip(adapter) && !res.max_vfs) {
+ max_vfs = pci_sriov_get_totalvfs(adapter->pdev);
+ res.max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
+ }
+
+ adapter->pool_res.max_vfs = res.max_vfs;
+ pci_sriov_set_totalvfs(adapter->pdev, be_max_vfs(adapter));
+
+ if (!be_max_vfs(adapter)) {
+ if (num_vfs)
+ dev_warn(dev, "device doesn't support SRIOV\n");
+ adapter->num_vfs = 0;
+ return 0;
+ }
+
+ /* validate num_vfs module param */
+ old_vfs = pci_num_vf(adapter->pdev);
+ if (old_vfs) {
+ dev_info(dev, "%d VFs are already enabled\n", old_vfs);
+ if (old_vfs != num_vfs)
+ dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
+ adapter->num_vfs = old_vfs;
+ } else {
+ if (num_vfs > be_max_vfs(adapter)) {
+ dev_info(dev, "Resources unavailable to init %d VFs\n",
+ num_vfs);
+ dev_info(dev, "Limiting to %d VFs\n",
+ be_max_vfs(adapter));
+ }
+ adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter));
+ }
+
+ return 0;
+}
+
static int be_get_resources(struct be_adapter *adapter)
{
struct device *dev = &adapter->pdev->dev;
@@ -3374,14 +3402,6 @@ static int be_get_resources(struct be_adapter *adapter)
res.max_evt_qs /= 2;
adapter->res = res;
- if (be_physfn(adapter)) {
- status = be_cmd_get_profile_config(adapter, &res, 0);
- if (status)
- return status;
- adapter->res.max_vfs = res.max_vfs;
- adapter->res.vf_if_cap_flags = res.vf_if_cap_flags;
- }
-
dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
be_max_txqs(adapter), be_max_rxqs(adapter),
be_max_rss(adapter), be_max_eqs(adapter),
@@ -3394,7 +3414,6 @@ static int be_get_resources(struct be_adapter *adapter)
return 0;
}
-/* Routine to query per function resource limits */
static int be_get_config(struct be_adapter *adapter)
{
u16 profile_id;
@@ -3412,6 +3431,26 @@ static int be_get_config(struct be_adapter *adapter)
if (!status)
dev_info(&adapter->pdev->dev,
"Using profile 0x%x\n", profile_id);
+
+ status = be_get_sriov_config(adapter);
+ if (status)
+ return status;
+
+ /* When the HW is in SRIOV capable configuration, the PF-pool
+ * resources are equally distributed across the max-number of
+ * VFs. The user may request only a subset of the max-vfs to be
+ * enabled. Based on num_vfs, redistribute the resources across
+ * num_vfs so that each VF will have access to more number of
+ * resources. This facility is not available in BE3 FW.
+ * Also, this is done by FW in Lancer chip.
+ */
+ if (!pci_num_vf(adapter->pdev)) {
+ status = be_cmd_set_sriov_config(adapter,
+ adapter->pool_res,
+ adapter->num_vfs);
+ if (status)
+ return status;
+ }
}
status = be_get_resources(adapter);
@@ -3597,12 +3636,8 @@ static int be_setup(struct be_adapter *adapter)
be_cmd_set_logical_link_config(adapter,
IFLA_VF_LINK_STATE_AUTO, 0);
- if (sriov_want(adapter)) {
- if (be_max_vfs(adapter))
- be_vf_setup(adapter);
- else
- dev_warn(dev, "device doesn't support SRIOV\n");
- }
+ if (adapter->num_vfs)
+ be_vf_setup(adapter);
status = be_cmd_get_phy_info(adapter);
if (!status && be_pause_supported(adapter))
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.