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sfc: Add workspace for GMAC bug workaround to MCDI MAC_STATS buffer 

Due to a hardware bug in the SFC9000 family, the firmware must
transfer raw GMAC statistics to host memory before aggregating them
into the cooked (speed-independent) MAC statistics.  Extend the stats
buffer to support this.

The length of the buffer is explicit in the MAC_STATS command, so this
change is backward-compatible on both sides.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Guido Barzini 2010-01-25 15:49:19 -08:00 committed by David S. Miller
parent f81074f861
commit 8704a2c8e9
1 changed files with 3 additions and 1 deletions
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4
drivers/net/sfc/mcdi_pcol.h
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@ -1090,8 +1090,10 @@
#define MC_CMD_MAC_RX_LANES01_DISP_ERR 57
#define MC_CMD_MAC_RX_LANES23_DISP_ERR 58
#define MC_CMD_MAC_RX_MATCH_FAULT 59
#define MC_CMD_GMAC_DMABUF_START 64
#define MC_CMD_GMAC_DMABUF_END 95
/* Insert new members here. */
#define MC_CMD_MAC_GENERATION_END 60
#define MC_CMD_MAC_GENERATION_END 96
#define MC_CMD_MAC_NSTATS (MC_CMD_MAC_GENERATION_END+1)
/* MC_CMD_MAC_STATS: