diff options
| author |   Michal Maloszewski <michal.maloszewski@intel.com> | 2022-07-22 10:54:01 -0700 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-07-25 18:48:41 -0700 |
| commit | 5fcbb711024aac6d4db385623e6f2fdf019f7782 (patch) | |
| tree | 8fca83021cffdeb1369662c9d214e9187b3ad070 /drivers/net/ethernet/intel/i40e/i40e_main.c | |
| parent | Merge branch 'net-sysctl-races-part-6' (diff) | |
| download | linux-dev-5fcbb711024aac6d4db385623e6f2fdf019f7782.tar.xz linux-dev-5fcbb711024aac6d4db385623e6f2fdf019f7782.zip | |
i40e: Fix interface init with MSI interrupts (no MSI-X)
Fix the inability to bring an interface up on a setup with
only MSI interrupts enabled (no MSI-X).
Solution is to add a default number of QPs = 1. This is enough,
since without MSI-X support driver enables only a basic feature set.
Fixes: bc6d33c8d93f ("i40e: Fix the number of queues available to be mapped for use")
Signed-off-by: Dawid Lukwinski <dawid.lukwinski@intel.com>
Signed-off-by: Michal Maloszewski <michal.maloszewski@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220722175401.112572-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 7f1a0d90dc51..685556e968f2 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -1925,11 +1925,15 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, * non-zero req_queue_pairs says that user requested a new * queue count via ethtool's set_channels, so use this * value for queues distribution across traffic classes + * We need at least one queue pair for the interface + * to be usable as we see in else statement. */ if (vsi->req_queue_pairs > 0) vsi->num_queue_pairs = vsi->req_queue_pairs; else if (pf->flags & I40E_FLAG_MSIX_ENABLED) vsi->num_queue_pairs = pf->num_lan_msix; + else + vsi->num_queue_pairs = 1; } /* Number of queues per enabled TC */ |