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path: root/drivers/net/sky2.c
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Diffstat (limited to 'drivers/net/sky2.c')
-rw-r--r--drivers/net/sky2.c165
1 files changed, 138 insertions, 27 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 3ee41da130c2..57339da76326 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -32,6 +32,7 @@
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/pci.h>
+#include <linux/interrupt.h>
#include <linux/ip.h>
#include <linux/slab.h>
#include <net/ip.h>
@@ -49,7 +50,7 @@
#include "sky2.h"
#define DRV_NAME "sky2"
-#define DRV_VERSION "1.28"
+#define DRV_VERSION "1.29"
/*
* The Yukon II chipset takes 64 bit command blocks (called list elements)
@@ -364,6 +365,17 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
gm_phy_write(hw, port, PHY_MARV_FE_SPEC_2, spec);
}
} else {
+ if (hw->chip_id >= CHIP_ID_YUKON_OPT) {
+ u16 ctrl2 = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL_2);
+
+ /* enable PHY Reverse Auto-Negotiation */
+ ctrl2 |= 1u << 13;
+
+ /* Write PHY changes (SW-reset must follow) */
+ gm_phy_write(hw, port, PHY_MARV_EXT_CTRL_2, ctrl2);
+ }
+
+
/* disable energy detect */
ctrl &= ~PHY_M_PC_EN_DET_MSK;
@@ -625,6 +637,63 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
if (ledover)
gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
+ } else if (hw->chip_id == CHIP_ID_YUKON_PRM &&
+ (sky2_read8(hw, B2_MAC_CFG) & 0xf) == 0x7) {
+ int i;
+ /* This a phy register setup workaround copied from vendor driver. */
+ static const struct {
+ u16 reg, val;
+ } eee_afe[] = {
+ { 0x156, 0x58ce },
+ { 0x153, 0x99eb },
+ { 0x141, 0x8064 },
+ /* { 0x155, 0x130b },*/
+ { 0x000, 0x0000 },
+ { 0x151, 0x8433 },
+ { 0x14b, 0x8c44 },
+ { 0x14c, 0x0f90 },
+ { 0x14f, 0x39aa },
+ /* { 0x154, 0x2f39 },*/
+ { 0x14d, 0xba33 },
+ { 0x144, 0x0048 },
+ { 0x152, 0x2010 },
+ /* { 0x158, 0x1223 },*/
+ { 0x140, 0x4444 },
+ { 0x154, 0x2f3b },
+ { 0x158, 0xb203 },
+ { 0x157, 0x2029 },
+ };
+
+ /* Start Workaround for OptimaEEE Rev.Z0 */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0x00fb);
+
+ gm_phy_write(hw, port, 1, 0x4099);
+ gm_phy_write(hw, port, 3, 0x1120);
+ gm_phy_write(hw, port, 11, 0x113c);
+ gm_phy_write(hw, port, 14, 0x8100);
+ gm_phy_write(hw, port, 15, 0x112a);
+ gm_phy_write(hw, port, 17, 0x1008);
+
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0x00fc);
+ gm_phy_write(hw, port, 1, 0x20b0);
+
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0x00ff);
+
+ for (i = 0; i < ARRAY_SIZE(eee_afe); i++) {
+ /* apply AFE settings */
+ gm_phy_write(hw, port, 17, eee_afe[i].val);
+ gm_phy_write(hw, port, 16, eee_afe[i].reg | 1u<<13);
+ }
+
+ /* End Workaround for OptimaEEE */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
+
+ /* Enable 10Base-Te (EEE) */
+ if (hw->chip_id >= CHIP_ID_YUKON_PRM) {
+ reg = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
+ gm_phy_write(hw, port, PHY_MARV_EXT_CTRL,
+ reg | PHY_M_10B_TE_ENABLE);
+ }
}
/* Enable phy interrupt on auto-negotiation complete (or link up) */
@@ -713,6 +782,20 @@ static void sky2_phy_power_down(struct sky2_hw *hw, unsigned port)
sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
}
+/* configure IPG according to used link speed */
+static void sky2_set_ipg(struct sky2_port *sky2)
+{
+ u16 reg;
+
+ reg = gma_read16(sky2->hw, sky2->port, GM_SERIAL_MODE);
+ reg &= ~GM_SMOD_IPG_MSK;
+ if (sky2->speed > SPEED_100)
+ reg |= IPG_DATA_VAL(IPG_DATA_DEF_1000);
+ else
+ reg |= IPG_DATA_VAL(IPG_DATA_DEF_10_100);
+ gma_write16(sky2->hw, sky2->port, GM_SERIAL_MODE, reg);
+}
+
/* Enable Rx/Tx */
static void sky2_enable_rx_tx(struct sky2_port *sky2)
{
@@ -881,7 +964,7 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
/* serial mode register */
reg = DATA_BLIND_VAL(DATA_BLIND_DEF) |
- GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
+ GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF_1000);
if (hw->dev[port]->mtu > ETH_DATA_LEN)
reg |= GM_SMOD_JUMBO_ENA;
@@ -1361,13 +1444,14 @@ static inline unsigned sky2_rx_pad(const struct sky2_hw *hw)
* Allocate an skb for receiving. If the MTU is large enough
* make the skb non-linear with a fragment list of pages.
*/
-static struct sk_buff *sky2_rx_alloc(struct sky2_port *sky2)
+static struct sk_buff *sky2_rx_alloc(struct sky2_port *sky2, gfp_t gfp)
{
struct sk_buff *skb;
int i;
- skb = netdev_alloc_skb(sky2->netdev,
- sky2->rx_data_size + sky2_rx_pad(sky2->hw));
+ skb = __netdev_alloc_skb(sky2->netdev,
+ sky2->rx_data_size + sky2_rx_pad(sky2->hw),
+ gfp);
if (!skb)
goto nomem;
@@ -1385,7 +1469,7 @@ static struct sk_buff *sky2_rx_alloc(struct sky2_port *sky2)
skb_reserve(skb, NET_IP_ALIGN);
for (i = 0; i < sky2->rx_nfrags; i++) {
- struct page *page = alloc_page(GFP_ATOMIC);
+ struct page *page = alloc_page(gfp);
if (!page)
goto free_partial;
@@ -1415,7 +1499,7 @@ static int sky2_alloc_rx_skbs(struct sky2_port *sky2)
for (i = 0; i < sky2->rx_pending; i++) {
struct rx_ring_info *re = sky2->rx_ring + i;
- re->skb = sky2_rx_alloc(sky2);
+ re->skb = sky2_rx_alloc(sky2, GFP_KERNEL);
if (!re->skb)
return -ENOMEM;
@@ -1448,7 +1532,7 @@ static void sky2_rx_start(struct sky2_port *sky2)
sky2_qset(hw, rxq);
/* On PCI express lowering the watermark gives better performance */
- if (pci_find_capability(hw->pdev, PCI_CAP_ID_EXP))
+ if (pci_is_pcie(hw->pdev))
sky2_write32(hw, Q_ADDR(rxq, Q_WM), BMU_WM_PEX);
/* These chips have no ram buffer?
@@ -2051,6 +2135,8 @@ static void sky2_link_up(struct sky2_port *sky2)
[FC_BOTH] = "both",
};
+ sky2_set_ipg(sky2);
+
sky2_enable_rx_tx(sky2);
gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
@@ -2288,8 +2374,11 @@ static int sky2_change_mtu(struct net_device *dev, int new_mtu)
dev->mtu = new_mtu;
netdev_update_features(dev);
- mode = DATA_BLIND_VAL(DATA_BLIND_DEF) |
- GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
+ mode = DATA_BLIND_VAL(DATA_BLIND_DEF) | GM_SMOD_VLAN_ENA;
+ if (sky2->speed > SPEED_100)
+ mode |= IPG_DATA_VAL(IPG_DATA_DEF_1000);
+ else
+ mode |= IPG_DATA_VAL(IPG_DATA_DEF_10_100);
if (dev->mtu > ETH_DATA_LEN)
mode |= GM_SMOD_JUMBO_ENA;
@@ -2383,7 +2472,7 @@ static struct sk_buff *receive_new(struct sky2_port *sky2,
struct rx_ring_info nre;
unsigned hdr_space = sky2->rx_data_size;
- nre.skb = sky2_rx_alloc(sky2);
+ nre.skb = sky2_rx_alloc(sky2, GFP_ATOMIC);
if (unlikely(!nre.skb))
goto nobuf;
@@ -2938,6 +3027,8 @@ static u32 sky2_mhz(const struct sky2_hw *hw)
case CHIP_ID_YUKON_SUPR:
case CHIP_ID_YUKON_UL_2:
case CHIP_ID_YUKON_OPT:
+ case CHIP_ID_YUKON_PRM:
+ case CHIP_ID_YUKON_OP_2:
return 125;
case CHIP_ID_YUKON_FE:
@@ -2994,7 +3085,8 @@ static int __devinit sky2_init(struct sky2_hw *hw)
hw->flags = SKY2_HW_GIGABIT
| SKY2_HW_NEWER_PHY
| SKY2_HW_NEW_LE
- | SKY2_HW_ADV_POWER_CTL;
+ | SKY2_HW_ADV_POWER_CTL
+ | SKY2_HW_RSS_CHKSUM;
/* New transmit checksum */
if (hw->chip_rev != CHIP_REV_YU_EX_B0)
@@ -3022,7 +3114,7 @@ static int __devinit sky2_init(struct sky2_hw *hw)
/* The workaround for status conflicts VLAN tag detection. */
if (hw->chip_rev == CHIP_REV_YU_FE2_A0)
- hw->flags |= SKY2_HW_VLAN_BROKEN;
+ hw->flags |= SKY2_HW_VLAN_BROKEN | SKY2_HW_RSS_CHKSUM;
break;
case CHIP_ID_YUKON_SUPR:
@@ -3031,6 +3123,9 @@ static int __devinit sky2_init(struct sky2_hw *hw)
| SKY2_HW_NEW_LE
| SKY2_HW_AUTO_TX_SUM
| SKY2_HW_ADV_POWER_CTL;
+
+ if (hw->chip_rev == CHIP_REV_YU_SU_A0)
+ hw->flags |= SKY2_HW_RSS_CHKSUM;
break;
case CHIP_ID_YUKON_UL_2:
@@ -3039,6 +3134,8 @@ static int __devinit sky2_init(struct sky2_hw *hw)
break;
case CHIP_ID_YUKON_OPT:
+ case CHIP_ID_YUKON_PRM:
+ case CHIP_ID_YUKON_OP_2:
hw->flags = SKY2_HW_GIGABIT
| SKY2_HW_NEW_LE
| SKY2_HW_ADV_POWER_CTL;
@@ -3071,7 +3168,7 @@ static void sky2_reset(struct sky2_hw *hw)
{
struct pci_dev *pdev = hw->pdev;
u16 status;
- int i, cap;
+ int i;
u32 hwe_mask = Y2_HWE_ALL_MASK;
/* disable ASF */
@@ -3107,8 +3204,7 @@ static void sky2_reset(struct sky2_hw *hw)
sky2_write8(hw, B0_CTST, CS_MRST_CLR);
- cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
- if (cap) {
+ if (pci_is_pcie(pdev)) {
sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
0xfffffffful);
@@ -3139,30 +3235,33 @@ static void sky2_reset(struct sky2_hw *hw)
sky2_pci_write32(hw, PCI_DEV_REG3, P_CLK_MACSEC_DIS);
}
- if (hw->chip_id == CHIP_ID_YUKON_OPT) {
+ if (hw->chip_id == CHIP_ID_YUKON_OPT ||
+ hw->chip_id == CHIP_ID_YUKON_PRM ||
+ hw->chip_id == CHIP_ID_YUKON_OP_2) {
u16 reg;
u32 msk;
- if (hw->chip_rev == 0) {
+ if (hw->chip_id == CHIP_ID_YUKON_OPT && hw->chip_rev == 0) {
/* disable PCI-E PHY power down (set PHY reg 0x80, bit 7 */
sky2_write32(hw, Y2_PEX_PHY_DATA, (0x80UL << 16) | (1 << 7));
/* set PHY Link Detect Timer to 1.1 second (11x 100ms) */
reg = 10;
+
+ /* re-enable PEX PM in PEX PHY debug reg. 8 (clear bit 12) */
+ sky2_write32(hw, Y2_PEX_PHY_DATA, PEX_DB_ACCESS | (0x08UL << 16));
} else {
/* set PHY Link Detect Timer to 0.4 second (4x 100ms) */
reg = 3;
}
reg <<= PSM_CONFIG_REG4_TIMER_PHY_LINK_DETECT_BASE;
+ reg |= PSM_CONFIG_REG4_RST_PHY_LINK_DETECT;
/* reset PHY Link Detect */
sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
- sky2_pci_write16(hw, PSM_CONFIG_REG4,
- reg | PSM_CONFIG_REG4_RST_PHY_LINK_DETECT);
sky2_pci_write16(hw, PSM_CONFIG_REG4, reg);
-
/* enable PHY Quick Link */
msk = sky2_read32(hw, B0_IMSK);
msk |= Y2_IS_PHY_QLNK;
@@ -3170,11 +3269,11 @@ static void sky2_reset(struct sky2_hw *hw)
/* check if PSMv2 was running before */
reg = sky2_pci_read16(hw, PSM_CONFIG_REG3);
- if (reg & PCI_EXP_LNKCTL_ASPMC) {
- cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
+ if (reg & PCI_EXP_LNKCTL_ASPMC)
/* restore the PCIe Link Control register */
- sky2_pci_write16(hw, cap + PCI_EXP_LNKCTL, reg);
- }
+ sky2_pci_write16(hw, pdev->pcie_cap + PCI_EXP_LNKCTL,
+ reg);
+
sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
/* re-enable PEX PM in PEX PHY debug reg. 8 (clear bit 12) */
@@ -4175,8 +4274,18 @@ static u32 sky2_fix_features(struct net_device *dev, u32 features)
/* In order to do Jumbo packets on these chips, need to turn off the
* transmit store/forward. Therefore checksum offload won't work.
*/
- if (dev->mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_EC_U)
+ if (dev->mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_EC_U) {
+ netdev_info(dev, "checksum offload not possible with jumbo frames\n");
features &= ~(NETIF_F_TSO|NETIF_F_SG|NETIF_F_ALL_CSUM);
+ }
+
+ /* Some hardware requires receive checksum for RSS to work. */
+ if ( (features & NETIF_F_RXHASH) &&
+ !(features & NETIF_F_RXCSUM) &&
+ (sky2->hw->flags & SKY2_HW_RSS_CHKSUM)) {
+ netdev_info(dev, "receive hashing forces receive checksum\n");
+ features |= NETIF_F_RXCSUM;
+ }
return features;
}
@@ -4676,9 +4785,11 @@ static const char *sky2_name(u8 chipid, char *buf, int sz)
"UL 2", /* 0xba */
"Unknown", /* 0xbb */
"Optima", /* 0xbc */
+ "Optima Prime", /* 0xbd */
+ "Optima 2", /* 0xbe */
};
- if (chipid >= CHIP_ID_YUKON_XL && chipid <= CHIP_ID_YUKON_OPT)
+ if (chipid >= CHIP_ID_YUKON_XL && chipid <= CHIP_ID_YUKON_OP_2)
strncpy(buf, name[chipid - CHIP_ID_YUKON_XL], sz);
else
snprintf(buf, sz, "(chip %#x)", chipid);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.