[dpdk-dev] [PATCH 27/53] net/sfc/base: use MCDIv2 for requests with too long response

[Andrew Rybchenko]

From: Mark Spender <mspen...@solarflare.com>

Use MCDIv2 for requests with a response size too long for MCDIv1.

Required for MC_CMD_MAC_STATS to reports the stats without using DMA.

Signed-off-by: Mark Spender <mspen...@solarflare.com>
Signed-off-by: Andrew Rybchenko <arybche...@solarflare.com>
---
 drivers/net/sfc/base/efx_mcdi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/sfc/base/efx_mcdi.c b/drivers/net/sfc/base/efx_mcdi.c
index c61b943..888a47b 100644
--- a/drivers/net/sfc/base/efx_mcdi.c
+++ b/drivers/net/sfc/base/efx_mcdi.c
@@ -290,7 +290,8 @@ efx_mcdi_request_start(
         */
        if ((max_version >= 2) &&
            ((emrp->emr_cmd > MC_CMD_CMD_SPACE_ESCAPE_7) ||
-           (emrp->emr_in_length > MCDI_CTL_SDU_LEN_MAX_V1))) {
+           (emrp->emr_in_length > MCDI_CTL_SDU_LEN_MAX_V1) ||
+           (emrp->emr_out_length > MCDI_CTL_SDU_LEN_MAX_V1))) {
                /* Construct MCDI v2 header */
                hdr_len = sizeof (hdr);
                EFX_POPULATE_DWORD_8(hdr[0],
-- 
2.7.4