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bnxt_en: Ring free response from close path should use completion ring

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Use completion ring for ring free response from firmware.  The response
will be the last entry in the ring and we can free the ring after getting
the response.  This will guarantee no spurious DMA to freed memory.

Signed-off-by: Prashant Sreedharan <prashant@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Prashant Sreedharan 2016-01-28 03:11:20 -05:00 committed by David S. Miller
parent df3eb6cd68
commit 74608fc98d
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -3406,7 +3406,7 @@ static int hwrm_ring_free_send_msg(struct bnxt *bp,
struct hwrm_ring_free_output *resp = bp->hwrm_cmd_resp_addr;
u16 error_code;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_FREE, -1, -1);
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_FREE, cmpl_ring_id, -1);
req.ring_type = ring_type;
req.ring_id = cpu_to_le16(ring->fw_ring_id);