diff options
Diffstat (limited to 'drivers/net/bnx2x/bnx2x_main.c')
| -rw-r--r-- | drivers/net/bnx2x/bnx2x_main.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c index 7a891824fab..e4dea114d04 100644 --- a/drivers/net/bnx2x/bnx2x_main.c +++ b/drivers/net/bnx2x/bnx2x_main.c @@ -2984,8 +2984,12 @@ static inline void bnx2x_sp_prod_update(struct bnx2x *bp) { int func = BP_FUNC(bp); - /* Make sure that BD data is updated before writing the producer */ - wmb(); + /* + * Make sure that BD data is updated before writing the producer: + * BD data is written to the memory, the producer is read from the + * memory, thus we need a full memory barrier to ensure the ordering. + */ + mb(); REG_WR16(bp, BAR_XSTRORM_INTMEM + XSTORM_SPQ_PROD_OFFSET(func), bp->spq_prod_idx); |