i40e: Fix errors resulted while turning off TSO
On systems with 128 CPUs, turning off TSO results in errors,
i40e 0000:03:00.0: failed to get tracking for 1 vectors for VSI 400, err=-12
i40e 0000:03:00.0: Couldn't create FDir VSI
i40e 0000:03:00.0: i40e_ptp_init: PTP not supported on eth0
i40e 0000:03:00.0: couldn't add VEB, err I40E_ERR_ADMIN_QUEUE_ERROR aq_err I40E_AQ_RC_ENOENT
i40e 0000:03:00.0: rebuild of switch failed: -1, will try to set up simple PF connection
i40e 0000:03:00.0 eth0: adding 00:10:e0:8a:24:b6 vid=0
Enabling FD_SB without checking availability of MSI-X vector is the
root cause. This change adds necessary check.
Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 9c44739..e83fc8a 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -283,6 +283,7 @@
#endif /* I40E_FCOE */
u16 num_lan_qps; /* num lan queues this PF has set up */
u16 num_lan_msix; /* num queue vectors for the base PF vsi */
+ u16 num_fdsb_msix; /* num queue vectors for sideband Fdir */
u16 num_iwarp_msix; /* num of iwarp vectors for this PF */
int iwarp_base_vector;
int queues_left; /* queues left unclaimed */
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 3e394bf..a313194 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -7185,7 +7185,7 @@
vsi->alloc_queue_pairs = 1;
vsi->num_desc = ALIGN(I40E_FDIR_RING_COUNT,
I40E_REQ_DESCRIPTOR_MULTIPLE);
- vsi->num_q_vectors = 1;
+ vsi->num_q_vectors = pf->num_fdsb_msix;
break;
case I40E_VSI_VMDQ2:
@@ -7569,9 +7569,11 @@
/* reserve one vector for sideband flow director */
if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
if (vectors_left) {
+ pf->num_fdsb_msix = 1;
v_budget++;
vectors_left--;
} else {
+ pf->num_fdsb_msix = 0;
pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
}
}
@@ -8590,7 +8592,9 @@
/* Enable filters and mark for reset */
if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
need_reset = true;
- pf->flags |= I40E_FLAG_FD_SB_ENABLED;
+ /* enable FD_SB only if there is MSI-X vector */
+ if (pf->num_fdsb_msix > 0)
+ pf->flags |= I40E_FLAG_FD_SB_ENABLED;
} else {
/* turn off filters, mark for reset and clear SW filter list */
if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {