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sfc: Reinitialise the PHY completely in case of a PHY or NIC reset

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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>
This commit is contained in:
Steve Hodgson 2009-01-29 17:50:51 +00:00 committed by David S. Miller
parent 0cc1283879
commit 4b988280be
4 changed files with 28 additions and 13 deletions
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26
drivers/net/sfc/efx.c
View File

@ -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:

7
drivers/net/sfc/efx.h
View File

@ -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);

7
drivers/net/sfc/selftest.c
View File

@ -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;

1
drivers/net/sfc/tenxpress.c
View File

@ -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,