diff options
| author | Michael Chan <michael.chan@broadcom.com> | 2024-08-28 20:32:34 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-08-30 00:33:25 +0200 |
| commit | f049d699aeee219ca33d08b48b7e14d7d86aebd5 (patch) | |
| tree | ae06f080a85e6e7858a56860ddf9b724639076c2 /drivers/net | |
| parent | bnxt_en: Replace deprecated PCI MSIX APIs (diff) | |
| download | linux-f049d699aeee219ca33d08b48b7e14d7d86aebd5.tar.xz linux-f049d699aeee219ca33d08b48b7e14d7d86aebd5.zip | |
bnxt_en: Allocate the max bp->irq_tbl size for dynamic msix allocation
If dynamic MSIX allocation is supported, additional MSIX can be
allocated at run-time without reinitializing the existing MSIX entries.
The first step to support this dynamic scheme is to allocate a large
enough bp->irq_tbl if dynamic allocation is supported.
Reviewed-by: Hongguang Gao <hongguang.gao@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20240828183235.128948-9-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 03598f8e0e07..fa4115f6dafe 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -10722,7 +10722,7 @@ static int bnxt_get_num_msix(struct bnxt *bp) static int bnxt_init_int_mode(struct bnxt *bp) { - int i, total_vecs, max, rc = 0, min = 1, ulp_msix, tx_cp; + int i, total_vecs, max, rc = 0, min = 1, ulp_msix, tx_cp, tbl_size; total_vecs = bnxt_get_num_msix(bp); max = bnxt_get_max_func_irqs(bp); @@ -10743,7 +10743,10 @@ static int bnxt_init_int_mode(struct bnxt *bp) goto msix_setup_exit; } - bp->irq_tbl = kcalloc(total_vecs, sizeof(struct bnxt_irq), GFP_KERNEL); + tbl_size = total_vecs; + if (pci_msix_can_alloc_dyn(bp->pdev)) + tbl_size = max; + bp->irq_tbl = kcalloc(tbl_size, sizeof(*bp->irq_tbl), GFP_KERNEL); if (bp->irq_tbl) { for (i = 0; i < total_vecs; i++) bp->irq_tbl[i].vector = pci_irq_vector(bp->pdev, i); |