be2net: create optimal number of queues on SR-IOV config
If SR-IOV is enabled in the adapter, the FW distributes queue resources
evenly across the PF and it's VFs. If the user is not interested in enabling
VFs, the queues set aside for VFs are wasted.
This patch adds support for the PF driver to re-configure the resource
distribution in FW based on the number of VFs enabled by the user.
This also allows for supporting RSS queues on VFs, when less number of VFs
are enabled per PF. When maximum number of VFs are enabled, each VF typically
gets only one RXQ.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 37477ee..d3d871b 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -501,6 +501,7 @@
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 @@
#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 @@
#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)
