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-   -   sfc: Add workspace for GMAC bug workaround to MCDI MAC_STATS buffer (http://www.linux-archive.org/ubuntu-kernel-team/320929-sfc-add-workspace-gmac-bug-workaround-mcdi-mac_stats-buffer.html)

Guido Barzini 01-25-2010 10:49 PM

sfc: Add workspace for GMAC bug workaround to MCDI MAC_STATS buffer
 
https://lists.ubuntu.com/archives/kernel-team/2010-January/008303.html

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>
(cherry picked from commit 8704a2c8e9db24157a7b08d1678bf840f2318779)

Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
---
drivers/net/sfc/mcdi_pcol.h | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/net/sfc/mcdi_pcol.h b/drivers/net/sfc/mcdi_pcol.h
index 2a85360..73e71f4 100644
--- a/drivers/net/sfc/mcdi_pcol.h
+++ b/drivers/net/sfc/mcdi_pcol.h
@@ -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:
--
1.6.2.4


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