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authorMichael Chan <michael.chan@broadcom.com>2019-07-17 03:07:23 -0400
committerDavid S. Miller <davem@davemloft.net>2019-07-18 16:33:27 -0700
commit9b3d15e6b05e0b916be5fbd915f90300a403098b (patch)
treed86416f7b613cc181a2734ad483595cc8ce75760
parent008cfbaa3f9f84efead76d2cea12b4dd05cce67d (diff)
downloadlinux-fpga-9b3d15e6b05e0b916be5fbd915f90300a403098b.tar.gz
bnxt_en: Fix VNIC accounting when enabling aRFS on 57500 chips.
Unlike legacy chips, 57500 chips don't need additional VNIC resources for aRFS/ntuple. Fix the code accordingly so that we don't reserve and allocate additional VNICs on 57500 chips. Without this patch, the driver is failing to initialize when it tries to allocate extra VNICs. Fixes: ac33906c67e2 ("bnxt_en: Add support for aRFS on 57500 chips.") Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt.c7
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 1069eb01cc55e0..7134d2c3eb1c4c 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3075,7 +3075,7 @@ static int bnxt_alloc_vnics(struct bnxt *bp)
int num_vnics = 1;
#ifdef CONFIG_RFS_ACCEL
- if (bp->flags & BNXT_FLAG_RFS)
+ if ((bp->flags & (BNXT_FLAG_RFS | BNXT_FLAG_CHIP_P5)) == BNXT_FLAG_RFS)
num_vnics += bp->rx_nr_rings;
#endif
@@ -7186,6 +7186,9 @@ static int bnxt_alloc_rfs_vnics(struct bnxt *bp)
#ifdef CONFIG_RFS_ACCEL
int i, rc = 0;
+ if (bp->flags & BNXT_FLAG_CHIP_P5)
+ return 0;
+
for (i = 0; i < bp->rx_nr_rings; i++) {
struct bnxt_vnic_info *vnic;
u16 vnic_id = i + 1;
@@ -9645,7 +9648,7 @@ int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs,
return -ENOMEM;
vnics = 1;
- if (bp->flags & BNXT_FLAG_RFS)
+ if ((bp->flags & (BNXT_FLAG_RFS | BNXT_FLAG_CHIP_P5)) == BNXT_FLAG_RFS)
vnics += rx_rings;
if (bp->flags & BNXT_FLAG_AGG_RINGS)