[dpdk-dev] [PATCH 27/53] net/sfc/base: use MCDIv2 for requests with too long response
Andrew Rybchenko
arybchenko at solarflare.com
Thu Nov 16 09:04:15 CET 2017
From: Mark Spender <mspender at 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 <mspender at solarflare.com>
Signed-off-by: Andrew Rybchenko <arybchenko at 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
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