be2net: ignore get/set profile FW cmd failures

Old versions of BE3 FW may not support cmds to re-provision (and hence
optimize) resources/queues in SR-IOV config. Do not treat this FW cmd
failure as fatal and fail the function initialization. Instead, just
enable SR-IOV with the resources provided by the FW.

Prior to the "create optimal number of queues on SR-IOV config" patch
such failures were ignored.
Fixes: bec84e6b2 ("create optimal number of queues on SR-IOV config")

Reported-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 37 insertions, 30 deletions

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 9c50814f1e95..da4d3863bd18 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -3342,22 +3342,17 @@ 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;
+        int max_vfs, old_vfs;
 
         /* Some old versions of BE3 FW don't report max_vfs value */
+        be_cmd_get_profile_config(adapter, &res, 0);
+
         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));
+        adapter->pool_res = res;
 
         if (!be_max_vfs(adapter)) {
                 if (num_vfs)
@@ -3366,6 +3361,8 @@ static int be_get_sriov_config(struct be_adapter *adapter)
                 return 0;
         }
 
+        pci_sriov_set_totalvfs(adapter->pdev, be_max_vfs(adapter));
+
         /* validate num_vfs module param */
         old_vfs = pci_num_vf(adapter->pdev);
         if (old_vfs) {
@@ -3423,6 +3420,35 @@ static int be_get_resources(struct be_adapter *adapter)
         return 0;
 }
 
+static void be_sriov_config(struct be_adapter *adapter)
+{
+        struct device *dev = &adapter->pdev->dev;
+        int status;
+
+        status = be_get_sriov_config(adapter);
+        if (status) {
+                dev_err(dev, "Failed to query SR-IOV configuration\n");
+                dev_err(dev, "SR-IOV cannot be enabled\n");
+                return;
+        }
+
+        /* 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 (be_max_vfs(adapter) && !pci_num_vf(adapter->pdev)) {
+                status = be_cmd_set_sriov_config(adapter,
+                                                 adapter->pool_res,
+                                                 adapter->num_vfs);
+                if (status)
+                        dev_err(dev, "Failed to optimize SR-IOV resources\n");
+        }
+}
+
 static int be_get_config(struct be_adapter *adapter)
 {
         u16 profile_id;
@@ -3439,27 +3465,8 @@ static int be_get_config(struct be_adapter *adapter)
                                  "Using profile 0x%x\n", profile_id);
         }
 
-        if (!BE2_chip(adapter) && be_physfn(adapter)) {
-                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;
-                }
-        }
+        if (!BE2_chip(adapter) && be_physfn(adapter))
+                be_sriov_config(adapter);
 
         status = be_get_resources(adapter);
         if (status)