From: Michael Chan michael.chan@broadcom.com
[ Upstream commit d629522e1d66561f38e5c8d4f52bb6d254ec0707 ]
Skip RDMA context memory allocations, reduce to 1 ring, and disable TPA when running in the kdump kernel. Without this patch, the driver fails to initialize with memory allocation errors when running in a typical kdump kernel.
Fixes: cf6daed098d1 ("bnxt_en: Increase context memory allocations on 57500 chips for RDMA.") Signed-off-by: Michael Chan michael.chan@broadcom.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 4 ++-- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 4 +++- 2 files changed, 5 insertions(+), 3 deletions(-)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -6342,7 +6342,7 @@ static int bnxt_alloc_ctx_mem(struct bnx if (!ctx || (ctx->flags & BNXT_CTX_FLAG_INITED)) return 0;
- if (bp->flags & BNXT_FLAG_ROCE_CAP) { + if ((bp->flags & BNXT_FLAG_ROCE_CAP) && !is_kdump_kernel()) { pg_lvl = 2; extra_qps = 65536; extra_srqs = 8192; @@ -10340,7 +10340,7 @@ static int bnxt_set_dflt_rings(struct bn
if (sh) bp->flags |= BNXT_FLAG_SHARED_RINGS; - dflt_rings = netif_get_num_default_rss_queues(); + dflt_rings = is_kdump_kernel() ? 1 : netif_get_num_default_rss_queues(); /* Reduce default rings on multi-port cards so that total default * rings do not exceed CPU count. */ --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -20,6 +20,7 @@
#include <linux/interrupt.h> #include <linux/rhashtable.h> +#include <linux/crash_dump.h> #include <net/devlink.h> #include <net/dst_metadata.h> #include <net/xdp.h> @@ -1367,7 +1368,8 @@ struct bnxt { #define BNXT_CHIP_TYPE_NITRO_A0(bp) ((bp)->flags & BNXT_FLAG_CHIP_NITRO_A0) #define BNXT_RX_PAGE_MODE(bp) ((bp)->flags & BNXT_FLAG_RX_PAGE_MODE) #define BNXT_SUPPORTS_TPA(bp) (!BNXT_CHIP_TYPE_NITRO_A0(bp) && \ - !(bp->flags & BNXT_FLAG_CHIP_P5)) + !(bp->flags & BNXT_FLAG_CHIP_P5) && \ + !is_kdump_kernel())
/* Chip class phase 5 */ #define BNXT_CHIP_P5(bp) \