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authorSteve Hodgson <shodgson@solarflare.com>2009-01-29 17:50:51 +0000
committerDavid S. Miller <davem@davemloft.net>2009-01-30 14:06:30 -0800
commit4b988280be13a1b4c17f51cc66948aef467e7601 (patch)
treeb8a0bd4e96520461caeaeeea2f91aa64d6c32bdd /drivers/net/sfc
parent0cc128387969753ae037401eb49e4bbb474186ea (diff)
sfc: Reinitialise the PHY completely in case of a PHY or NIC reset
In particular, set pause advertising bits properly. A PHY reset is not necessary to recover from the register self-test, so use a "invisible" reset there instead. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sfc')
-rw-r--r--drivers/net/sfc/efx.c26
-rw-r--r--drivers/net/sfc/efx.h7
-rw-r--r--drivers/net/sfc/selftest.c7
-rw-r--r--drivers/net/sfc/tenxpress.c1
4 files changed, 28 insertions, 13 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 7673fd92eaf..b0e53087bda 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -676,9 +676,8 @@ static int efx_init_port(struct efx_nic *efx)
rc = efx->phy_op->init(efx);
if (rc)
return rc;
- efx->phy_op->reconfigure(efx);
-
mutex_lock(&efx->mac_lock);
+ efx->phy_op->reconfigure(efx);
rc = falcon_switch_mac(efx);
mutex_unlock(&efx->mac_lock);
if (rc)
@@ -1622,7 +1621,8 @@ static void efx_unregister_netdev(struct efx_nic *efx)
/* Tears down the entire software state and most of the hardware state
* before reset. */
-void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
+void efx_reset_down(struct efx_nic *efx, enum reset_type method,
+ struct ethtool_cmd *ecmd)
{
EFX_ASSERT_RESET_SERIALISED(efx);
@@ -1639,6 +1639,8 @@ void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
efx->phy_op->get_settings(efx, ecmd);
efx_fini_channels(efx);
+ if (efx->port_initialized && method != RESET_TYPE_INVISIBLE)
+ efx->phy_op->fini(efx);
}
/* This function will always ensure that the locks acquired in
@@ -1646,7 +1648,8 @@ void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
* that we were unable to reinitialise the hardware, and the
* driver should be disabled. If ok is false, then the rx and tx
* engines are not restarted, pending a RESET_DISABLE. */
-int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd, bool ok)
+int efx_reset_up(struct efx_nic *efx, enum reset_type method,
+ struct ethtool_cmd *ecmd, bool ok)
{
int rc;
@@ -1658,6 +1661,15 @@ int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd, bool ok)
ok = false;
}
+ if (efx->port_initialized && method != RESET_TYPE_INVISIBLE) {
+ if (ok) {
+ rc = efx->phy_op->init(efx);
+ if (rc)
+ ok = false;
+ } else
+ efx->port_initialized = false;
+ }
+
if (ok) {
efx_init_channels(efx);
@@ -1702,7 +1714,7 @@ static int efx_reset(struct efx_nic *efx)
EFX_INFO(efx, "resetting (%d)\n", method);
- efx_reset_down(efx, &ecmd);
+ efx_reset_down(efx, method, &ecmd);
rc = falcon_reset_hw(efx, method);
if (rc) {
@@ -1721,10 +1733,10 @@ static int efx_reset(struct efx_nic *efx)
/* Leave device stopped if necessary */
if (method == RESET_TYPE_DISABLE) {
- efx_reset_up(efx, &ecmd, false);
+ efx_reset_up(efx, method, &ecmd, false);
rc = -EIO;
} else {
- rc = efx_reset_up(efx, &ecmd, true);
+ rc = efx_reset_up(efx, method, &ecmd, true);
}
out_disable:
diff --git a/drivers/net/sfc/efx.h b/drivers/net/sfc/efx.h
index 0dd7a532c78..ac201587a16 100644
--- a/drivers/net/sfc/efx.h
+++ b/drivers/net/sfc/efx.h
@@ -40,9 +40,10 @@ extern void efx_reconfigure_port(struct efx_nic *efx);
extern void __efx_reconfigure_port(struct efx_nic *efx);
/* Reset handling */
-extern void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd);
-extern int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd,
- bool ok);
+extern void efx_reset_down(struct efx_nic *efx, enum reset_type method,
+ struct ethtool_cmd *ecmd);
+extern int efx_reset_up(struct efx_nic *efx, enum reset_type method,
+ struct ethtool_cmd *ecmd, bool ok);
/* Global */
extern void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c
index dba0d64d50c..0a598084c51 100644
--- a/drivers/net/sfc/selftest.c
+++ b/drivers/net/sfc/selftest.c
@@ -665,6 +665,7 @@ int efx_selftest(struct efx_nic *efx, struct efx_self_tests *tests,
{
enum efx_loopback_mode loopback_mode = efx->loopback_mode;
int phy_mode = efx->phy_mode;
+ enum reset_type reset_method = RESET_TYPE_INVISIBLE;
struct ethtool_cmd ecmd;
struct efx_channel *channel;
int rc_test = 0, rc_reset = 0, rc;
@@ -718,21 +719,21 @@ int efx_selftest(struct efx_nic *efx, struct efx_self_tests *tests,
mutex_unlock(&efx->mac_lock);
/* free up all consumers of SRAM (including all the queues) */
- efx_reset_down(efx, &ecmd);
+ efx_reset_down(efx, reset_method, &ecmd);
rc = efx_test_chip(efx, tests);
if (rc && !rc_test)
rc_test = rc;
/* reset the chip to recover from the register test */
- rc_reset = falcon_reset_hw(efx, RESET_TYPE_ALL);
+ rc_reset = falcon_reset_hw(efx, reset_method);
/* Ensure that the phy is powered and out of loopback
* for the bist and loopback tests */
efx->phy_mode &= ~PHY_MODE_LOW_POWER;
efx->loopback_mode = LOOPBACK_NONE;
- rc = efx_reset_up(efx, &ecmd, rc_reset == 0);
+ rc = efx_reset_up(efx, reset_method, &ecmd, rc_reset == 0);
if (rc && !rc_reset)
rc_reset = rc;
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index bc2833f9cbe..c9584619322 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -337,6 +337,7 @@ static int tenxpress_phy_init(struct efx_nic *efx)
rc = tenxpress_init(efx);
if (rc < 0)
goto fail;
+ mdio_clause45_set_pause(efx);
if (efx->phy_type == PHY_TYPE_SFT9001B) {
rc = device_create_file(&efx->pci_dev->dev,