sfc: add tracing of MCDI commands
MCDI tracing is conditional on CONFIG_SFC_MCDI_LOGGING, which is enabled
by default.
Each MCDI command will produce a console line like
sfc dom:bus:dev:fn ifname: MCDI RPC REQ: xxxxxxxx [yyyyyyyy...]
where xxxxxxxx etc. are the raw MCDI payload in 32-bit hex chunks.
The response will then produce a similar line with "RESP" instead of "REQ",
and containing the MCDI response payload (if any).
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index a547ceb..4eb6ab7 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -267,6 +267,9 @@
return -ENOMEM;
efx->nic_data = nic_data;
+ /* we assume later that we can copy from this buffer in dwords */
+ BUILD_BUG_ON(MCDI_CTL_SDU_LEN_MAX_V2 % 4);
+
rc = efx_nic_alloc_buffer(efx, &nic_data->mcdi_buf,
8 + MCDI_CTL_SDU_LEN_MAX_V2, GFP_KERNEL);
if (rc)