diff options
| author | Duanqiang Wen <duanqiangwen@net-swift.com> | 2024-04-18 10:15:56 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-04-19 11:27:45 +0100 |
| commit | 69197dfc64007b5292cc960581548f41ccd44828 (patch) | |
| tree | 693c58da03dc1f7b91d60716f543a73b058cf007 | |
| parent | 7586c8501d090609c6eb1af6ba05e3ed68806c83 (diff) | |
| download | linux-69197dfc64007b5292cc960581548f41ccd44828.tar.gz | |
net: libwx: fix alloc msix vectors failed
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: 3f703186113f ("net: libwx: Add irq flow functions")
Signed-off-by: Duanqiang Wen <duanqiangwen@net-swift.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/wangxun/libwx/wx_lib.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_lib.c b/drivers/net/ethernet/wangxun/libwx/wx_lib.c index 6dff2c85682d8..6fae161cbcb82 100644 --- a/drivers/net/ethernet/wangxun/libwx/wx_lib.c +++ b/drivers/net/ethernet/wangxun/libwx/wx_lib.c @@ -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 */ |