@@ -142,8 +142,9 @@ static int efx_mcdi_poll(struct efx_nic *efx)
if (spins != 0) {
--spins;
udelay(1);
- } else
- schedule();
+ } else {
+ schedule_timeout_uninterruptible(1);
+ }
time = get_seconds();
--
1.6.2.4
From a7e5bdf9f301e76236647c2eb285135cb4a25c88 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Wed, 13 Jan 2010 10:59:13 +0000
Subject: [PATCH 2/5] sfc: Fix conditions for MDIO self-test
https://lists.ubuntu.com/archives/kernel-team/2010-January/008303.html
The MDIO self-test should not be run on boards without an MDIO PHY,
such as SFN5122F-R3 and later revisions. It should also not try to
address a specific MMD in an MDIO clause 22 PHY. Check the
mode_support field to decide which mode to use, if any.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit f3766c26a5d00189e5c0965c66f01956d15a92d6)
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
---
drivers/net/sfc/selftest.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
@@ -79,10 +79,14 @@ struct efx_loopback_state {
static int efx_test_mdio(struct efx_nic *efx, struct efx_self_tests *tests)
{
int rc = 0;
- int devad = __ffs(efx->mdio.mmds);
+ int devad;
u16 physid1, physid2;
- if (efx->phy_type == PHY_TYPE_NONE)
+ if (efx->mdio.mode_support & MDIO_SUPPORTS_C45)
+ devad = __ffs(efx->mdio.mmds);
+ else if (efx->mdio.mode_support & MDIO_SUPPORTS_C22)
+ devad = MDIO_DEVAD_NONE;
+ else
return 0;
mutex_lock(&efx->mac_lock);
--
1.6.2.4
From c7c8d60d75ed087146d80b2045b176e1b561d390 Mon Sep 17 00:00:00 2001
From: Matthew Slattery <mslattery@solarflare.com>
Date: Mon, 18 Jan 2010 05:47:16 +0000
Subject: [PATCH 3/5] sfc: QT202x: Remove unreliable MMD check at initialisation
https://lists.ubuntu.com/archives/kernel-team/2010-January/008303.html
Checking the PHY XS MMD here is unnecessary and can give false negatives.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 357d46a17e54c9a87e0e6ef3930ff4ab2d232b81)
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
---
drivers/net/sfc/qt202x_phy.c | 6 ------
1 files changed, 0 insertions(+), 6 deletions(-)
@@ -318,12 +318,6 @@ static int qt202x_reset_phy(struct efx_nic *efx)
/* Wait 250ms for the PHY to complete bootup */
msleep(250);
- /* Check that all the MMDs we expect are present and responding. We
- * expect faults on some if the link is down, but not on the PHY XS */
- rc = efx_mdio_check_mmds(efx, QT202X_REQUIRED_DEVS, MDIO_DEVS_PHYXS);
- if (rc < 0)
- goto fail;
-
falcon_board(efx)->type->init_phy(efx);
return rc;
--
1.6.2.4
From 3ca206a53e7df7931620d1475754f6249267e5d8 Mon Sep 17 00:00:00 2001
From: Guido Barzini <gbarzini@solarflare.com>
Date: Mon, 25 Jan 2010 15:49:19 -0800
Subject: [PATCH 4/5] 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(-)
@@ -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
From 3c91495d812f25470fc6c86322d6b81b5dee5f1f Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Mon, 25 Jan 2010 15:49:59 -0800
Subject: [PATCH 5/5] sfc: Use fixed-size buffers for MCDI NVRAM requests
https://lists.ubuntu.com/archives/kernel-team/2010-January/008303.html
The low-level MCDI code always uses 32-bit MMIO operations, and
callers must pad input and output buffers to multiples of 4 bytes.
The MCDI NVRAM functions are not doing this. Also, their buffers are
declared as variable-length arrays with no explicit maximum length.
Switch to a fixed buffer size based on the chunk size used by the
MTD driver (which is a multiple of 4).
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 5a27e86babe79cf5f575394bb1055448458df6c7)
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
---
drivers/net/sfc/mcdi.c | 7 ++++---
drivers/net/sfc/mcdi.h | 1 +
drivers/net/sfc/mtd.c | 5 ++---
3 files changed, 7 insertions(+), 6 deletions(-)
@@ -804,7 +804,7 @@ int efx_mcdi_nvram_read(struct efx_nic *efx, unsigned int type,
loff_t offset, u8 *buffer, size_t length)
{
u8 inbuf[MC_CMD_NVRAM_READ_IN_LEN];
- u8 outbuf[MC_CMD_NVRAM_READ_OUT_LEN(length)];
+ u8 outbuf[MC_CMD_NVRAM_READ_OUT_LEN(EFX_MCDI_NVRAM_LEN_MAX)];
size_t outlen;
int rc;
@@ -828,7 +828,7 @@ fail:
int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type,
loff_t offset, const u8 *buffer, size_t length)
{
- u8 inbuf[MC_CMD_NVRAM_WRITE_IN_LEN(length)];
+ u8 inbuf[MC_CMD_NVRAM_WRITE_IN_LEN(EFX_MCDI_NVRAM_LEN_MAX)];
int rc;
MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_TYPE, type);
@@ -838,7 +838,8 @@ int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type,
BUILD_BUG_ON(MC_CMD_NVRAM_WRITE_OUT_LEN != 0);
- rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_WRITE, inbuf, sizeof(inbuf),
+ rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_WRITE, inbuf,
+ ALIGN(MC_CMD_NVRAM_WRITE_IN_LEN(length), 4),
NULL, 0, NULL);
if (rc)
goto fail;
@@ -111,6 +111,7 @@ extern int efx_mcdi_nvram_read(struct efx_nic *efx, unsigned int type,
extern int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type,
loff_t offset, const u8 *buffer,
size_t length);
+#define EFX_MCDI_NVRAM_LEN_MAX 128
extern int efx_mcdi_nvram_erase(struct efx_nic *efx, unsigned int type,
loff_t offset, size_t length);
extern int efx_mcdi_nvram_update_finish(struct efx_nic *efx,
@@ -23,7 +23,6 @@
#include "mcdi_pcol.h"
#define EFX_SPI_VERIFY_BUF_LEN 16
-#define EFX_MCDI_CHUNK_LEN 128
struct efx_mtd_partition {
struct mtd_info mtd;
@@ -428,7 +427,7 @@ static int siena_mtd_read(struct mtd_info *mtd, loff_t start,
int rc = 0;
while (offset < end) {
- chunk = min_t(size_t, end - offset, EFX_MCDI_CHUNK_LEN);
+ chunk = min_t(size_t, end - offset, EFX_MCDI_NVRAM_LEN_MAX);
rc = efx_mcdi_nvram_read(efx, part->mcdi.nvram_type, offset,
buffer, chunk);
if (rc)
@@ -491,7 +490,7 @@ static int siena_mtd_write(struct mtd_info *mtd, loff_t start,
}
while (offset < end) {
- chunk = min_t(size_t, end - offset, EFX_MCDI_CHUNK_LEN);
+ chunk = min_t(size_t, end - offset, EFX_MCDI_NVRAM_LEN_MAX);
rc = efx_mcdi_nvram_write(efx, part->mcdi.nvram_type, offset,
buffer, chunk);
if (rc)
The following changes since commit 932055fc7a0993c3ce6fe7b3337f2e427105ceca: Tim Gardner (1): UBUNTU: [Config] Implemented the amd64 preempt flavour are available in the git repository at: git://kernel.ubuntu.com/rtg/ubuntu-lucid.git sfc Ben Hutchings (3): sfc: Fix polling for slow MCDI operations sfc: Fix conditions for MDIO self-test sfc: Use fixed-size buffers for MCDI NVRAM requests Guido Barzini (1): sfc: Add workspace for GMAC bug workaround to MCDI MAC_STATS buffer Matthew Slattery (1): sfc: QT202x: Remove unreliable MMD check at initialisation drivers/net/sfc/mcdi.c | 12 +++++++----- drivers/net/sfc/mcdi.h | 1 + drivers/net/sfc/mcdi_pcol.h | 4 +++- drivers/net/sfc/mtd.c | 5 ++--- drivers/net/sfc/qt202x_phy.c | 6 ------ drivers/net/sfc/selftest.c | 8 ++++++-- 6 files changed, 19 insertions(+), 17 deletions(-) From a9abb51a556bc1779154d265f0845fdbb0c6b46e Mon Sep 17 00:00:00 2001 From: Ben Hutchings <bhutchings@solarflare.com> Date: Wed, 13 Jan 2010 04:34:25 +0000 Subject: [PATCH 1/5] sfc: Fix polling for slow MCDI operations https://lists.ubuntu.com/archives/kernel-team/2010-January/008303.html When the interface is down and we are using polled mode for MCDI operations, we busy-wait for completion for approximately 1 jiffy using udelay() and then back off to schedule(). But the completion will not wake the task, since we are using polled mode! We must use schedule_timeout_uninterruptible() instead. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net> (cherry picked from commit 55029c1d65158aea9672c5dfadb43a57f23e3100) Signed-off-by: Tim Gardner <tim.gardner@canonical.com> --- drivers/net/sfc/mcdi.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-)