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i40e: use minimal admin queue for kdump 

The minimum size of admin send/receive queue is 1 and 2 respectively.
The admin send queue can't be set to 1 because in that case, the
firmware would fail to init.

Signed-off-by: Coiby Xu <coxu@redhat.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Coiby Xu 2021-03-04 10:55:43 +08:00 committed by Tony Nguyen
parent dcb75338f6
commit 5c208e9f49
2 changed files with 9 additions and 2 deletions
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2
drivers/net/ethernet/intel/i40e/i40e.h
View File

@ -66,6 +66,8 @@
#define I40E_FDIR_RING_COUNT 32
#define I40E_MAX_AQ_BUF_SIZE 4096
#define I40E_AQ_LEN 256
#define I40E_MIN_ARQ_LEN 1
#define I40E_MIN_ASQ_LEN 2
#define I40E_AQ_WORK_LIMIT 66 /* max number of VFs + a little */
#define I40E_MAX_USER_PRIORITY 8
#define I40E_DEFAULT_TRAFFIC_CLASS BIT(0)

5
drivers/net/ethernet/intel/i40e/i40e_main.c
View File

@ -15348,8 +15348,13 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
i40e_check_recovery_mode(pf);
if (is_kdump_kernel()) {
hw->aq.num_arq_entries = I40E_MIN_ARQ_LEN;
hw->aq.num_asq_entries = I40E_MIN_ASQ_LEN;
} else {
hw->aq.num_arq_entries = I40E_AQ_LEN;
hw->aq.num_asq_entries = I40E_AQ_LEN;
}
hw->aq.arq_buf_size = I40E_MAX_AQ_BUF_SIZE;
hw->aq.asq_buf_size = I40E_MAX_AQ_BUF_SIZE;
pf->adminq_work_limit = I40E_AQ_WORK_LIMIT;