aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/sky2.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/sky2.c')
-rw-r--r--drivers/net/sky2.c117
1 files changed, 69 insertions, 48 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index bc15940ce1bc..626190eb91e7 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -51,7 +51,7 @@
#include "sky2.h"
#define DRV_NAME "sky2"
-#define DRV_VERSION "1.20"
+#define DRV_VERSION "1.21"
#define PFX DRV_NAME " "
/*
@@ -64,7 +64,6 @@
#define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le))
#define RX_MAX_PENDING (RX_LE_SIZE/6 - 2)
#define RX_DEF_PENDING RX_MAX_PENDING
-#define RX_SKB_ALIGN 8
#define TX_RING_SIZE 512
#define TX_DEF_PENDING (TX_RING_SIZE - 1)
@@ -135,6 +134,8 @@ static const struct pci_device_id sky2_id_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436A) }, /* 88E8058 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436B) }, /* 88E8071 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436C) }, /* 88E8072 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436D) }, /* 88E8055 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4370) }, /* 88E8075 */
{ 0 }
};
@@ -548,6 +549,7 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
case CHIP_ID_YUKON_EC_U:
case CHIP_ID_YUKON_EX:
+ case CHIP_ID_YUKON_SUPR:
pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
/* select page 3 to access LED control register */
@@ -714,23 +716,33 @@ static void sky2_set_tx_stfwd(struct sky2_hw *hw, unsigned port)
{
struct net_device *dev = hw->dev[port];
- if (dev->mtu <= ETH_DATA_LEN)
- sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
- TX_JUMBO_DIS | TX_STFW_ENA);
+ if ( (hw->chip_id == CHIP_ID_YUKON_EX &&
+ hw->chip_rev != CHIP_REV_YU_EX_A0) ||
+ hw->chip_id == CHIP_ID_YUKON_FE_P ||
+ hw->chip_id == CHIP_ID_YUKON_SUPR) {
+ /* Yukon-Extreme B0 and further Extreme devices */
+ /* enable Store & Forward mode for TX */
- else if (hw->chip_id != CHIP_ID_YUKON_EC_U)
- sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
- TX_STFW_ENA | TX_JUMBO_ENA);
- else {
- /* set Tx GMAC FIFO Almost Empty Threshold */
- sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR),
- (ECU_JUMBO_WM << 16) | ECU_AE_THR);
+ if (dev->mtu <= ETH_DATA_LEN)
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
+ TX_JUMBO_DIS | TX_STFW_ENA);
- sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
- TX_JUMBO_ENA | TX_STFW_DIS);
+ else
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
+ TX_JUMBO_ENA| TX_STFW_ENA);
+ } else {
+ if (dev->mtu <= ETH_DATA_LEN)
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_ENA);
+ else {
+ /* set Tx GMAC FIFO Almost Empty Threshold */
+ sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR),
+ (ECU_JUMBO_WM << 16) | ECU_AE_THR);
- /* Can't do offload because of lack of store/forward */
- dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | NETIF_F_ALL_CSUM);
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_DIS);
+
+ /* Can't do offload because of lack of store/forward */
+ dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | NETIF_F_ALL_CSUM);
+ }
}
}
@@ -1174,24 +1186,32 @@ static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp
/*
* Allocate an skb for receiving. If the MTU is large enough
* make the skb non-linear with a fragment list of pages.
- *
- * It appears the hardware has a bug in the FIFO logic that
- * cause it to hang if the FIFO gets overrun and the receive buffer
- * is not 64 byte aligned. The buffer returned from netdev_alloc_skb is
- * aligned except if slab debugging is enabled.
*/
static struct sk_buff *sky2_rx_alloc(struct sky2_port *sky2)
{
struct sk_buff *skb;
- unsigned long p;
int i;
- skb = netdev_alloc_skb(sky2->netdev, sky2->rx_data_size + RX_SKB_ALIGN);
- if (!skb)
- goto nomem;
-
- p = (unsigned long) skb->data;
- skb_reserve(skb, ALIGN(p, RX_SKB_ALIGN) - p);
+ if (sky2->hw->flags & SKY2_HW_FIFO_HANG_CHECK) {
+ unsigned char *start;
+ /*
+ * Workaround for a bug in FIFO that cause hang
+ * if the FIFO if the receive buffer is not 64 byte aligned.
+ * The buffer returned from netdev_alloc_skb is
+ * aligned except if slab debugging is enabled.
+ */
+ skb = netdev_alloc_skb(sky2->netdev, sky2->rx_data_size + 8);
+ if (!skb)
+ goto nomem;
+ start = PTR_ALIGN(skb->data, 8);
+ skb_reserve(skb, start - skb->data);
+ } else {
+ skb = netdev_alloc_skb(sky2->netdev,
+ sky2->rx_data_size + NET_IP_ALIGN);
+ if (!skb)
+ goto nomem;
+ skb_reserve(skb, NET_IP_ALIGN);
+ }
for (i = 0; i < sky2->rx_nfrags; i++) {
struct page *page = alloc_page(GFP_ATOMIC);
@@ -1227,7 +1247,7 @@ static int sky2_rx_start(struct sky2_port *sky2)
struct sky2_hw *hw = sky2->hw;
struct rx_ring_info *re;
unsigned rxq = rxqaddr[sky2->port];
- unsigned i, size, space, thresh;
+ unsigned i, size, thresh;
sky2->rx_put = sky2->rx_next = 0;
sky2_qset(hw, rxq);
@@ -1254,28 +1274,18 @@ static int sky2_rx_start(struct sky2_port *sky2)
/* Stopping point for hardware truncation */
thresh = (size - 8) / sizeof(u32);
- /* Account for overhead of skb - to avoid order > 0 allocation */
- space = SKB_DATA_ALIGN(size) + NET_SKB_PAD
- + sizeof(struct skb_shared_info);
-
- sky2->rx_nfrags = space >> PAGE_SHIFT;
+ sky2->rx_nfrags = size >> PAGE_SHIFT;
BUG_ON(sky2->rx_nfrags > ARRAY_SIZE(re->frag_addr));
- if (sky2->rx_nfrags != 0) {
- /* Compute residue after pages */
- space = sky2->rx_nfrags << PAGE_SHIFT;
+ /* Compute residue after pages */
+ size -= sky2->rx_nfrags << PAGE_SHIFT;
- if (space < size)
- size -= space;
- else
- size = 0;
+ /* Optimize to handle small packets and headers */
+ if (size < copybreak)
+ size = copybreak;
+ if (size < ETH_HLEN)
+ size = ETH_HLEN;
- /* Optimize to handle small packets and headers */
- if (size < copybreak)
- size = copybreak;
- if (size < ETH_HLEN)
- size = ETH_HLEN;
- }
sky2->rx_data_size = size;
/* Fill Rx ring */
@@ -2663,6 +2673,7 @@ static u32 sky2_mhz(const struct sky2_hw *hw)
case CHIP_ID_YUKON_EC:
case CHIP_ID_YUKON_EC_U:
case CHIP_ID_YUKON_EX:
+ case CHIP_ID_YUKON_SUPR:
return 125;
case CHIP_ID_YUKON_FE:
@@ -2746,6 +2757,15 @@ static int __devinit sky2_init(struct sky2_hw *hw)
| SKY2_HW_AUTO_TX_SUM
| SKY2_HW_ADV_POWER_CTL;
break;
+
+ case CHIP_ID_YUKON_SUPR:
+ hw->flags = SKY2_HW_GIGABIT
+ | SKY2_HW_NEWER_PHY
+ | SKY2_HW_NEW_LE
+ | SKY2_HW_AUTO_TX_SUM
+ | SKY2_HW_ADV_POWER_CTL;
+ break;
+
default:
dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
hw->chip_id);
@@ -2816,7 +2836,8 @@ static void sky2_reset(struct sky2_hw *hw)
sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
- if (hw->chip_id == CHIP_ID_YUKON_EX)
+ if (hw->chip_id == CHIP_ID_YUKON_EX ||
+ hw->chip_id == CHIP_ID_YUKON_SUPR)
sky2_write16(hw, SK_REG(i, GMAC_CTRL),
GMC_BYP_MACSECRX_ON | GMC_BYP_MACSECTX_ON
| GMC_BYP_RETR_ON);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.