sfc: Remove support for SFN4111T, SFT9001 and Falcon GMAC

SFN4111T never reached production and is not being used for internal
or customer testing.

Since we have no production Falcon boards using the SFT9001 or the
GMAC, remove support for them as well.

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

1 files changed, 18 insertions, 99 deletions

diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index b398a419804..254a599935c 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -446,30 +446,19 @@ static void falcon_reset_macs(struct efx_nic *efx)
 		/* It's not safe to use GLB_CTL_REG to reset the
 		 * macs, so instead use the internal MAC resets
 		 */
-		if (!EFX_IS10G(efx)) {
-			EFX_POPULATE_OWORD_1(reg, FRF_AB_GM_SW_RST, 1);
-			efx_writeo(efx, &reg, FR_AB_GM_CFG1);
-			udelay(1000);
-
-			EFX_POPULATE_OWORD_1(reg, FRF_AB_GM_SW_RST, 0);
-			efx_writeo(efx, &reg, FR_AB_GM_CFG1);
-			udelay(1000);
-			return;
-		} else {
-			EFX_POPULATE_OWORD_1(reg, FRF_AB_XM_CORE_RST, 1);
-			efx_writeo(efx, &reg, FR_AB_XM_GLB_CFG);
-
-			for (count = 0; count < 10000; count++) {
-				efx_reado(efx, &reg, FR_AB_XM_GLB_CFG);
-				if (EFX_OWORD_FIELD(reg, FRF_AB_XM_CORE_RST) ==
-				    0)
-					return;
-				udelay(10);
-			}
-
-			netif_err(efx, hw, efx->net_dev,
-				  "timed out waiting for XMAC core reset\n");
+		EFX_POPULATE_OWORD_1(reg, FRF_AB_XM_CORE_RST, 1);
+		efx_writeo(efx, &reg, FR_AB_XM_GLB_CFG);
+
+		for (count = 0; count < 10000; count++) {
+			efx_reado(efx, &reg, FR_AB_XM_GLB_CFG);
+			if (EFX_OWORD_FIELD(reg, FRF_AB_XM_CORE_RST) ==
+			    0)
+				return;
+			udelay(10);
 		}
+
+		netif_err(efx, hw, efx->net_dev,
+			  "timed out waiting for XMAC core reset\n");
 	}
 
 	/* Mac stats will fail whist the TX fifo is draining */
@@ -508,7 +497,6 @@ static void falcon_reset_macs(struct efx_nic *efx)
 	 * are re-enabled by the caller */
 	efx_writeo(efx, &mac_ctrl, FR_AB_MAC_CTRL);
 
-	/* This can run even when the GMAC is selected */
 	falcon_setup_xaui(efx);
 }
 
@@ -646,8 +634,6 @@ static void falcon_stats_timer_func(unsigned long context)
 	spin_unlock(&efx->stats_lock);
 }
 
-static void falcon_switch_mac(struct efx_nic *efx);
-
 static bool falcon_loopback_link_poll(struct efx_nic *efx)
 {
 	struct efx_link_state old_state = efx->link_state;
@@ -658,11 +644,7 @@ static bool falcon_loopback_link_poll(struct efx_nic *efx)
 	efx->link_state.fd = true;
 	efx->link_state.fc = efx->wanted_fc;
 	efx->link_state.up = true;
-
-	if (efx->loopback_mode == LOOPBACK_GMAC)
-		efx->link_state.speed = 1000;
-	else
-		efx->link_state.speed = 10000;
+	efx->link_state.speed = 10000;
 
 	return !efx_link_state_equal(&efx->link_state, &old_state);
 }
@@ -685,7 +667,7 @@ static int falcon_reconfigure_port(struct efx_nic *efx)
 	falcon_stop_nic_stats(efx);
 	falcon_deconfigure_mac_wrapper(efx);
 
-	falcon_switch_mac(efx);
+	falcon_reset_macs(efx);
 
 	efx->phy_op->reconfigure(efx);
 	rc = efx->mac_op->reconfigure(efx);
@@ -835,69 +817,16 @@ out:
 	return rc;
 }
 
-static void falcon_clock_mac(struct efx_nic *efx)
-{
-	unsigned strap_val;
-	efx_oword_t nic_stat;
-
-	/* Configure the NIC generated MAC clock correctly */
-	efx_reado(efx, &nic_stat, FR_AB_NIC_STAT);
-	strap_val = EFX_IS10G(efx) ? 5 : 3;
-	if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0) {
-		EFX_SET_OWORD_FIELD(nic_stat, FRF_BB_EE_STRAP_EN, 1);
-		EFX_SET_OWORD_FIELD(nic_stat, FRF_BB_EE_STRAP, strap_val);
-		efx_writeo(efx, &nic_stat, FR_AB_NIC_STAT);
-	} else {
-		/* Falcon A1 does not support 1G/10G speed switching
-		 * and must not be used with a PHY that does. */
-		BUG_ON(EFX_OWORD_FIELD(nic_stat, FRF_AB_STRAP_PINS) !=
-		       strap_val);
-	}
-}
-
-static void falcon_switch_mac(struct efx_nic *efx)
-{
-	struct efx_mac_operations *old_mac_op = efx->mac_op;
-	struct falcon_nic_data *nic_data = efx->nic_data;
-	unsigned int stats_done_offset;
-
-	WARN_ON(!mutex_is_locked(&efx->mac_lock));
-	WARN_ON(nic_data->stats_disable_count == 0);
-
-	efx->mac_op = (EFX_IS10G(efx) ?
-		       &falcon_xmac_operations : &falcon_gmac_operations);
-
-	if (EFX_IS10G(efx))
-		stats_done_offset = XgDmaDone_offset;
-	else
-		stats_done_offset = GDmaDone_offset;
-	nic_data->stats_dma_done = efx->stats_buffer.addr + stats_done_offset;
-
-	if (old_mac_op == efx->mac_op)
-		return;
-
-	falcon_clock_mac(efx);
-
-	netif_dbg(efx, hw, efx->net_dev, "selected %cMAC\n",
-		  EFX_IS10G(efx) ? 'X' : 'G');
-	/* Not all macs support a mac-level link state */
-	efx->xmac_poll_required = false;
-	falcon_reset_macs(efx);
-}
-
 /* This call is responsible for hooking in the MAC and PHY operations */
 static int falcon_probe_port(struct efx_nic *efx)
 {
+	struct falcon_nic_data *nic_data = efx->nic_data;
 	int rc;
 
 	switch (efx->phy_type) {
 	case PHY_TYPE_SFX7101:
 		efx->phy_op = &falcon_sfx7101_phy_ops;
 		break;
-	case PHY_TYPE_SFT9001A:
-	case PHY_TYPE_SFT9001B:
-		efx->phy_op = &falcon_sft9001_phy_ops;
-		break;
 	case PHY_TYPE_QT2022C2:
 	case PHY_TYPE_QT2025C:
 		efx->phy_op = &falcon_qt202x_phy_ops;
@@ -937,6 +866,7 @@ static int falcon_probe_port(struct efx_nic *efx)
 		  (u64)efx->stats_buffer.dma_addr,
 		  efx->stats_buffer.addr,
 		  (u64)virt_to_phys(efx->stats_buffer.addr));
+	nic_data->stats_dma_done = efx->stats_buffer.addr + XgDmaDone_offset;
 
 	return 0;
 }
@@ -1201,7 +1131,7 @@ static void falcon_monitor(struct efx_nic *efx)
 		falcon_stop_nic_stats(efx);
 		falcon_deconfigure_mac_wrapper(efx);
 
-		falcon_switch_mac(efx);
+		falcon_reset_macs(efx);
 		rc = efx->mac_op->reconfigure(efx);
 		BUG_ON(rc);
 
@@ -1210,8 +1140,7 @@ static void falcon_monitor(struct efx_nic *efx)
 		efx_link_status_changed(efx);
 	}
 
-	if (EFX_IS10G(efx))
-		falcon_poll_xmac(efx);
+	falcon_poll_xmac(efx);
 }
 
 /* Zeroes out the SRAM contents.  This routine must be called in
@@ -1604,16 +1533,6 @@ static int falcon_init_nic(struct efx_nic *efx)
 	EFX_SET_OWORD_FIELD(temp, FRF_AB_ONCHIP_SRAM, 1);
 	efx_writeo(efx, &temp, FR_AB_NIC_STAT);
 
-	/* Set the source of the GMAC clock */
-	if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
-		efx_reado(efx, &temp, FR_AB_GPIO_CTL);
-		EFX_SET_OWORD_FIELD(temp, FRF_AB_USE_NIC_CLK, true);
-		efx_writeo(efx, &temp, FR_AB_GPIO_CTL);
-	}
-
-	/* Select the correct MAC */
-	falcon_clock_mac(efx);
-
 	rc = falcon_reset_sram(efx);
 	if (rc)
 		return rc;