diff options
| author | Maciej Fijalkowski <maciej.fijalkowski@intel.com> | 2019-05-28 20:59:20 +0300 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-06-26 19:18:54 +0300 |
| commit | 15369ac3e397771e98cd9bef41ce749fa72022ea (patch) | |
| tree | e2ece97ebeddb57ecd8d142e3370e5e3b6e11861 /drivers/net/ethernet/intel/i40e/i40e.h | |
| parent | ee02865e4a45abf0651ba015aea455e690e0aec7 (diff) | |
| download | linux-15369ac3e397771e98cd9bef41ce749fa72022ea.tar.xz | |
i40e: Fix descriptor count manipulation
Changing descriptor count via 'ethtool -G' is not persistent across resets.
When PF reset occurs, we roll back to the default value of vsi->num_desc,
which is used then in i40e_alloc_rings to set descriptor count. XDP does a
PF reset so when user has changed the descriptor count and load XDP
program, the default count will be back there.
To fix this:
* introduce new VSI members - num_tx_desc and num_rx_desc in favour of
num_desc
* set them in i40e_set_ringparam to user's values
* set them to default values in i40e_set_num_rings_in_vsi only when they
don't have previous values
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e.h')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h index 8dc98d1d2e86..24e6ce6517a7 100644 --- a/drivers/net/ethernet/intel/i40e/i40e.h +++ b/drivers/net/ethernet/intel/i40e/i40e.h @@ -775,7 +775,8 @@ struct i40e_vsi { u16 alloc_queue_pairs; /* Allocated Tx/Rx queues */ u16 req_queue_pairs; /* User requested queue pairs */ u16 num_queue_pairs; /* Used tx and rx pairs */ - u16 num_desc; + u16 num_tx_desc; + u16 num_rx_desc; enum i40e_vsi_type type; /* VSI type, e.g., LAN, FCoE, etc */ s16 vf_id; /* Virtual function ID for SRIOV VSIs */ |