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net: libwx: fix alloc msix vectors failed

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driver needs queue msix vectors and one misc irq vector,
but only queue vectors need irq affinity.
when num_online_cpus is less than chip max msix vectors,
driver will acquire (num_online_cpus + 1) vecotrs, and
call pci_alloc_irq_vectors_affinity functions with affinity
params without setting pre_vectors or post_vectors, it will
cause return error code -ENOSPC.
Misc irq vector is vector 0, driver need to set affinity params
.pre_vectors = 1.

Fixes: 3f70318611 ("net: libwx: Add irq flow functions")
Signed-off-by: Duanqiang Wen <duanqiangwen@net-swift.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Duanqiang Wen 2024-04-18 10:15:56 +08:00 committed by David S. Miller
parent 7586c8501d
commit 69197dfc64
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/wangxun/libwx/wx_lib.c
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@ -1598,7 +1598,7 @@ static void wx_set_num_queues(struct wx *wx)
*/
static int wx_acquire_msix_vectors(struct wx *wx)
{
struct irq_affinity affd = {0, };
struct irq_affinity affd = { .pre_vectors = 1 };
int nvecs, i;
/* We start by asking for one vector per queue pair */