sfc: Clean up PHY mode management in loopback self-test

Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/sfc/selftest.c

@@ -564,8 +564,7 @@ efx_test_loopback(struct efx_tx_queue *tx_queue,
 	return 0;
 }
 
-static int efx_test_loopbacks(struct efx_nic *efx, struct ethtool_cmd ecmd,
-			      struct efx_self_tests *tests,
+static int efx_test_loopbacks(struct efx_nic *efx, struct efx_self_tests *tests,
 			      unsigned int loopback_modes)
 {
 	enum efx_loopback_mode mode;
@@ -693,7 +692,7 @@ int efx_offline_test(struct efx_nic *efx,
 {
 	enum efx_loopback_mode loopback_mode = efx->loopback_mode;
 	int phy_mode = efx->phy_mode;
-	struct ethtool_cmd ecmd, ecmd_test;
+	struct ethtool_cmd ecmd;
 	int rc, rc2 = 0;
 
 	/* force the carrier state off so the kernel doesn't transmit during
@@ -724,16 +723,12 @@ int efx_offline_test(struct efx_nic *efx,
 	/* reset the chip to recover from the register test */
 	rc = falcon_reset_hw(efx, RESET_TYPE_ALL);
 
-	/* Modify the saved ecmd so that when efx_reset_up() restores the phy
-	 * state, AN is disabled, and the phy is powered, and out of loopback */
-	memcpy(&ecmd_test, &ecmd, sizeof(ecmd_test));
-	if (ecmd_test.autoneg == AUTONEG_ENABLE) {
-		ecmd_test.autoneg = AUTONEG_DISABLE;
-		ecmd_test.duplex = DUPLEX_FULL;
-	}
+	/* 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_test, rc == 0);
+	rc = efx_reset_up(efx, &ecmd, rc == 0);
 	if (rc) {
 		EFX_ERR(efx, "Unable to recover from chip test\n");
 		efx_schedule_reset(efx, RESET_TYPE_DISABLE);
@@ -744,7 +739,7 @@ int efx_offline_test(struct efx_nic *efx,
 	if (rc && !rc2)
 		rc2 = rc;
 
-	rc = efx_test_loopbacks(efx, ecmd_test, tests, loopback_modes);
+	rc = efx_test_loopbacks(efx, tests, loopback_modes);
 	if (rc && !rc2)
 		rc2 = rc;