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bnxt_en: Add maximum extended request length fw message support.

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Support the max_ext_req_len field from the HWRM_VER_GET_RESPONSE.
If this field is valid and greater than the mailbox size, use the
short command format to send firmware messages greater than the
mailbox size.  Newer devices use this method to send larger messages
to the firmware.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan
2018-10-14 07:02:39 -04:00
committed by David S. Miller
parent 36e53349b6
commit 1dfddc41ae
2 changed files with 28 additions and 7 deletions
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1
drivers/net/ethernet/broadcom/bnxt/bnxt.h
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@@ -1315,6 +1315,7 @@ struct bnxt {
u16 fw_tx_stats_ext_size;
u16 hwrm_max_req_len;
u16 hwrm_max_ext_req_len;
int hwrm_cmd_timeout;
struct mutex hwrm_cmd_lock; /* serialize hwrm messages */
struct hwrm_ver_get_output ver_resp;