X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fnet%2Fb44.c;h=2a9132343b66135fb2487c30a20ba6ce0db786ec;hb=012093f6d5d89e6ed6e89c55c383f84b1cff7a78;hp=e891ea2ecc3c0464c4ed008181d528386be98edd;hpb=7282d491ecaee9883233a0e27283c4c79486279a;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/net/b44.c b/drivers/net/b44.c index e891ea2..2a91323 100644 --- a/drivers/net/b44.c +++ b/drivers/net/b44.c @@ -1,8 +1,11 @@ -/* b44.c: Broadcom 4400 device driver. +/* b44.c: Broadcom 44xx/47xx Fast Ethernet device driver. * * Copyright (C) 2002 David S. Miller (davem@redhat.com) - * Fixed by Pekka Pietikainen (pp@ee.oulu.fi) + * Copyright (C) 2004 Pekka Pietikainen (pp@ee.oulu.fi) + * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org) + * Copyright (C) 2006 Felix Fietkau (nbd@openwrt.org) * Copyright (C) 2006 Broadcom Corporation. + * Copyright (C) 2007 Michael Buesch * * Distribute under GPL. */ @@ -15,22 +18,24 @@ #include #include #include +#include #include #include #include #include #include +#include #include #include #include + #include "b44.h" #define DRV_MODULE_NAME "b44" #define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "1.01" -#define DRV_MODULE_RELDATE "Jun 16, 2006" +#define DRV_MODULE_VERSION "2.0" #define B44_DEF_MSG_ENABLE \ (NETIF_MSG_DRV | \ @@ -59,7 +64,6 @@ #define B44_DEF_TX_RING_PENDING (B44_TX_RING_SIZE - 1) #define B44_TX_RING_BYTES (sizeof(struct dma_desc) * \ B44_TX_RING_SIZE) -#define B44_DMA_MASK 0x3fffffff #define TX_RING_GAP(BP) \ (B44_TX_RING_SIZE - (BP)->tx_pending) @@ -69,8 +73,8 @@ (BP)->tx_cons - (BP)->tx_prod - TX_RING_GAP(BP)) #define NEXT_TX(N) (((N) + 1) & (B44_TX_RING_SIZE - 1)) -#define RX_PKT_BUF_SZ (1536 + bp->rx_offset + 64) -#define TX_PKT_BUF_SZ (B44_MAX_MTU + ETH_HLEN + 8) +#define RX_PKT_OFFSET (RX_HEADER_LEN + 2) +#define RX_PKT_BUF_SZ (1536 + RX_PKT_OFFSET) /* minimum number of free TX descriptors required to wake up TX process */ #define B44_TX_WAKEUP_THRESH (B44_TX_RING_SIZE / 4) @@ -85,10 +89,10 @@ #define B44_ETHIPV4UDP_HLEN 42 static char version[] __devinitdata = - DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; + DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION "\n"; -MODULE_AUTHOR("Florian Schirmer, Pekka Pietikainen, David S. Miller"); -MODULE_DESCRIPTION("Broadcom 4400 10/100 PCI ethernet driver"); +MODULE_AUTHOR("Felix Fietkau, Florian Schirmer, Pekka Pietikainen, David S. Miller"); +MODULE_DESCRIPTION("Broadcom 44xx/47xx 10/100 PCI ethernet driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_MODULE_VERSION); @@ -96,24 +100,42 @@ static int b44_debug = -1; /* -1 == use B44_DEF_MSG_ENABLE as value */ module_param(b44_debug, int, 0); MODULE_PARM_DESC(b44_debug, "B44 bitmapped debugging message enable value"); -static struct pci_device_id b44_pci_tbl[] = { - { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BCM4401, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, - { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BCM4401B0, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, - { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BCM4401B1, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, - { } /* terminate list with empty entry */ -}; +#ifdef CONFIG_B44_PCI +static const struct pci_device_id b44_pci_tbl[] = { + { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BCM4401) }, + { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BCM4401B0) }, + { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BCM4401B1) }, + { 0 } /* terminate list with empty entry */ +}; MODULE_DEVICE_TABLE(pci, b44_pci_tbl); +static struct pci_driver b44_pci_driver = { + .name = DRV_MODULE_NAME, + .id_table = b44_pci_tbl, +}; +#endif /* CONFIG_B44_PCI */ + +static const struct ssb_device_id b44_ssb_tbl[] = { + SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_ETHERNET, SSB_ANY_REV), + SSB_DEVTABLE_END +}; +MODULE_DEVICE_TABLE(ssb, b44_ssb_tbl); + static void b44_halt(struct b44 *); static void b44_init_rings(struct b44 *); + +#define B44_FULL_RESET 1 +#define B44_FULL_RESET_SKIP_PHY 2 +#define B44_PARTIAL_RESET 3 +#define B44_CHIP_RESET_FULL 4 +#define B44_CHIP_RESET_PARTIAL 5 + static void b44_init_hw(struct b44 *, int); static int dma_desc_align_mask; static int dma_desc_sync_size; +static int instance; static const char b44_gstrings[][ETH_GSTRING_LEN] = { #define _B44(x...) # x, @@ -121,35 +143,35 @@ B44_STAT_REG_DECLARE #undef _B44 }; -static inline void b44_sync_dma_desc_for_device(struct pci_dev *pdev, - dma_addr_t dma_base, - unsigned long offset, - enum dma_data_direction dir) +static inline void b44_sync_dma_desc_for_device(struct ssb_device *sdev, + dma_addr_t dma_base, + unsigned long offset, + enum dma_data_direction dir) { - dma_sync_single_range_for_device(&pdev->dev, dma_base, - offset & dma_desc_align_mask, - dma_desc_sync_size, dir); + ssb_dma_sync_single_range_for_device(sdev, dma_base, + offset & dma_desc_align_mask, + dma_desc_sync_size, dir); } -static inline void b44_sync_dma_desc_for_cpu(struct pci_dev *pdev, - dma_addr_t dma_base, - unsigned long offset, - enum dma_data_direction dir) +static inline void b44_sync_dma_desc_for_cpu(struct ssb_device *sdev, + dma_addr_t dma_base, + unsigned long offset, + enum dma_data_direction dir) { - dma_sync_single_range_for_cpu(&pdev->dev, dma_base, - offset & dma_desc_align_mask, - dma_desc_sync_size, dir); + ssb_dma_sync_single_range_for_cpu(sdev, dma_base, + offset & dma_desc_align_mask, + dma_desc_sync_size, dir); } static inline unsigned long br32(const struct b44 *bp, unsigned long reg) { - return readl(bp->regs + reg); + return ssb_read32(bp->sdev, reg); } static inline void bw32(const struct b44 *bp, unsigned long reg, unsigned long val) { - writel(val, bp->regs + reg); + ssb_write32(bp->sdev, reg, val); } static int b44_wait_bit(struct b44 *bp, unsigned long reg, @@ -177,117 +199,29 @@ static int b44_wait_bit(struct b44 *bp, unsigned long reg, return 0; } -/* Sonics SiliconBackplane support routines. ROFL, you should see all the - * buzz words used on this company's website :-) - * - * All of these routines must be invoked with bp->lock held and - * interrupts disabled. - */ - -#define SB_PCI_DMA 0x40000000 /* Client Mode PCI memory access space (1 GB) */ -#define BCM4400_PCI_CORE_ADDR 0x18002000 /* Address of PCI core on BCM4400 cards */ - -static u32 ssb_get_core_rev(struct b44 *bp) -{ - return (br32(bp, B44_SBIDHIGH) & SBIDHIGH_RC_MASK); -} - -static u32 ssb_pci_setup(struct b44 *bp, u32 cores) -{ - u32 bar_orig, pci_rev, val; - - pci_read_config_dword(bp->pdev, SSB_BAR0_WIN, &bar_orig); - pci_write_config_dword(bp->pdev, SSB_BAR0_WIN, BCM4400_PCI_CORE_ADDR); - pci_rev = ssb_get_core_rev(bp); - - val = br32(bp, B44_SBINTVEC); - val |= cores; - bw32(bp, B44_SBINTVEC, val); - - val = br32(bp, SSB_PCI_TRANS_2); - val |= SSB_PCI_PREF | SSB_PCI_BURST; - bw32(bp, SSB_PCI_TRANS_2, val); - - pci_write_config_dword(bp->pdev, SSB_BAR0_WIN, bar_orig); - - return pci_rev; -} - -static void ssb_core_disable(struct b44 *bp) -{ - if (br32(bp, B44_SBTMSLOW) & SBTMSLOW_RESET) - return; - - bw32(bp, B44_SBTMSLOW, (SBTMSLOW_REJECT | SBTMSLOW_CLOCK)); - b44_wait_bit(bp, B44_SBTMSLOW, SBTMSLOW_REJECT, 100000, 0); - b44_wait_bit(bp, B44_SBTMSHIGH, SBTMSHIGH_BUSY, 100000, 1); - bw32(bp, B44_SBTMSLOW, (SBTMSLOW_FGC | SBTMSLOW_CLOCK | - SBTMSLOW_REJECT | SBTMSLOW_RESET)); - br32(bp, B44_SBTMSLOW); - udelay(1); - bw32(bp, B44_SBTMSLOW, (SBTMSLOW_REJECT | SBTMSLOW_RESET)); - br32(bp, B44_SBTMSLOW); - udelay(1); -} - -static void ssb_core_reset(struct b44 *bp) +static inline void __b44_cam_read(struct b44 *bp, unsigned char *data, int index) { u32 val; - ssb_core_disable(bp); - bw32(bp, B44_SBTMSLOW, (SBTMSLOW_RESET | SBTMSLOW_CLOCK | SBTMSLOW_FGC)); - br32(bp, B44_SBTMSLOW); - udelay(1); - - /* Clear SERR if set, this is a hw bug workaround. */ - if (br32(bp, B44_SBTMSHIGH) & SBTMSHIGH_SERR) - bw32(bp, B44_SBTMSHIGH, 0); + bw32(bp, B44_CAM_CTRL, (CAM_CTRL_READ | + (index << CAM_CTRL_INDEX_SHIFT))); - val = br32(bp, B44_SBIMSTATE); - if (val & (SBIMSTATE_IBE | SBIMSTATE_TO)) - bw32(bp, B44_SBIMSTATE, val & ~(SBIMSTATE_IBE | SBIMSTATE_TO)); + b44_wait_bit(bp, B44_CAM_CTRL, CAM_CTRL_BUSY, 100, 1); - bw32(bp, B44_SBTMSLOW, (SBTMSLOW_CLOCK | SBTMSLOW_FGC)); - br32(bp, B44_SBTMSLOW); - udelay(1); + val = br32(bp, B44_CAM_DATA_LO); - bw32(bp, B44_SBTMSLOW, (SBTMSLOW_CLOCK)); - br32(bp, B44_SBTMSLOW); - udelay(1); -} + data[2] = (val >> 24) & 0xFF; + data[3] = (val >> 16) & 0xFF; + data[4] = (val >> 8) & 0xFF; + data[5] = (val >> 0) & 0xFF; -static int ssb_core_unit(struct b44 *bp) -{ -#if 0 - u32 val = br32(bp, B44_SBADMATCH0); - u32 base; + val = br32(bp, B44_CAM_DATA_HI); - type = val & SBADMATCH0_TYPE_MASK; - switch (type) { - case 0: - base = val & SBADMATCH0_BS0_MASK; - break; - - case 1: - base = val & SBADMATCH0_BS1_MASK; - break; - - case 2: - default: - base = val & SBADMATCH0_BS2_MASK; - break; - }; -#endif - return 0; -} - -static int ssb_is_core_up(struct b44 *bp) -{ - return ((br32(bp, B44_SBTMSLOW) & (SBTMSLOW_RESET | SBTMSLOW_REJECT | SBTMSLOW_CLOCK)) - == SBTMSLOW_CLOCK); + data[0] = (val >> 8) & 0xFF; + data[1] = (val >> 0) & 0xFF; } -static void __b44_cam_write(struct b44 *bp, unsigned char *data, int index) +static inline void __b44_cam_write(struct b44 *bp, unsigned char *data, int index) { u32 val; @@ -323,14 +257,14 @@ static void b44_enable_ints(struct b44 *bp) bw32(bp, B44_IMASK, bp->imask); } -static int b44_readphy(struct b44 *bp, int reg, u32 *val) +static int __b44_readphy(struct b44 *bp, int phy_addr, int reg, u32 *val) { int err; bw32(bp, B44_EMAC_ISTAT, EMAC_INT_MII); bw32(bp, B44_MDIO_DATA, (MDIO_DATA_SB_START | (MDIO_OP_READ << MDIO_DATA_OP_SHIFT) | - (bp->phy_addr << MDIO_DATA_PMD_SHIFT) | + (phy_addr << MDIO_DATA_PMD_SHIFT) | (reg << MDIO_DATA_RA_SHIFT) | (MDIO_TA_VALID << MDIO_DATA_TA_SHIFT))); err = b44_wait_bit(bp, B44_EMAC_ISTAT, EMAC_INT_MII, 100, 0); @@ -339,29 +273,40 @@ static int b44_readphy(struct b44 *bp, int reg, u32 *val) return err; } -static int b44_writephy(struct b44 *bp, int reg, u32 val) +static int __b44_writephy(struct b44 *bp, int phy_addr, int reg, u32 val) { bw32(bp, B44_EMAC_ISTAT, EMAC_INT_MII); bw32(bp, B44_MDIO_DATA, (MDIO_DATA_SB_START | (MDIO_OP_WRITE << MDIO_DATA_OP_SHIFT) | - (bp->phy_addr << MDIO_DATA_PMD_SHIFT) | + (phy_addr << MDIO_DATA_PMD_SHIFT) | (reg << MDIO_DATA_RA_SHIFT) | (MDIO_TA_VALID << MDIO_DATA_TA_SHIFT) | (val & MDIO_DATA_DATA))); return b44_wait_bit(bp, B44_EMAC_ISTAT, EMAC_INT_MII, 100, 0); } +static inline int b44_readphy(struct b44 *bp, int reg, u32 *val) +{ + if (bp->phy_addr == B44_PHY_ADDR_NO_PHY) + return 0; + + return __b44_readphy(bp, bp->phy_addr, reg, val); +} + +static inline int b44_writephy(struct b44 *bp, int reg, u32 val) +{ + if (bp->phy_addr == B44_PHY_ADDR_NO_PHY) + return 0; + + return __b44_writephy(bp, bp->phy_addr, reg, val); +} + /* miilib interface */ -/* FIXME FIXME: phy_id is ignored, bp->phy_addr use is unconditional - * due to code existing before miilib use was added to this driver. - * Someone should remove this artificial driver limitation in - * b44_{read,write}phy. bp->phy_addr itself is fine (and needed). - */ static int b44_mii_read(struct net_device *dev, int phy_id, int location) { u32 val; struct b44 *bp = netdev_priv(dev); - int rc = b44_readphy(bp, location, &val); + int rc = __b44_readphy(bp, phy_id, location, &val); if (rc) return 0xffffffff; return val; @@ -371,7 +316,7 @@ static void b44_mii_write(struct net_device *dev, int phy_id, int location, int val) { struct b44 *bp = netdev_priv(dev); - b44_writephy(bp, location, val); + __b44_writephy(bp, phy_id, location, val); } static int b44_phy_reset(struct b44 *bp) @@ -379,6 +324,8 @@ static int b44_phy_reset(struct b44 *bp) u32 val; int err; + if (bp->phy_addr == B44_PHY_ADDR_NO_PHY) + return 0; err = b44_writephy(bp, MII_BMCR, BMCR_RESET); if (err) return err; @@ -437,11 +384,52 @@ static void b44_set_flow_ctrl(struct b44 *bp, u32 local, u32 remote) __b44_set_flow_ctrl(bp, pause_enab); } +#ifdef SSB_DRIVER_MIPS +extern char *nvram_get(char *name); +static void b44_wap54g10_workaround(struct b44 *bp) +{ + const char *str; + u32 val; + int err; + + /* + * workaround for bad hardware design in Linksys WAP54G v1.0 + * see https://dev.openwrt.org/ticket/146 + * check and reset bit "isolate" + */ + str = nvram_get("boardnum"); + if (!str) + return; + if (simple_strtoul(str, NULL, 0) == 2) { + err = __b44_readphy(bp, 0, MII_BMCR, &val); + if (err) + goto error; + if (!(val & BMCR_ISOLATE)) + return; + val &= ~BMCR_ISOLATE; + err = __b44_writephy(bp, 0, MII_BMCR, val); + if (err) + goto error; + } + return; +error: + printk(KERN_WARNING PFX "PHY: cannot reset MII transceiver isolate bit.\n"); +} +#else +static inline void b44_wap54g10_workaround(struct b44 *bp) +{ +} +#endif + static int b44_setup_phy(struct b44 *bp) { u32 val; int err; + b44_wap54g10_workaround(bp); + + if (bp->phy_addr == B44_PHY_ADDR_NO_PHY) + return 0; if ((err = b44_readphy(bp, B44_MII_ALEDCTRL, &val)) != 0) goto out; if ((err = b44_writephy(bp, B44_MII_ALEDCTRL, @@ -537,6 +525,19 @@ static void b44_check_phy(struct b44 *bp) { u32 bmsr, aux; + if (bp->phy_addr == B44_PHY_ADDR_NO_PHY) { + bp->flags |= B44_FLAG_100_BASE_T; + bp->flags |= B44_FLAG_FULL_DUPLEX; + if (!netif_carrier_ok(bp->dev)) { + u32 val = br32(bp, B44_TX_CTRL); + val |= TX_CTRL_DUPLEX; + bw32(bp, B44_TX_CTRL, val); + netif_carrier_on(bp->dev); + b44_link_report(bp); + } + return; + } + if (!b44_readphy(bp, MII_BMSR, &bmsr) && !b44_readphy(bp, B44_MII_AUXCTRL, &aux) && (bmsr != 0xffff)) { @@ -595,8 +596,7 @@ static void b44_timer(unsigned long __opaque) spin_unlock_irq(&bp->lock); - bp->timer.expires = jiffies + HZ; - add_timer(&bp->timer); + mod_timer(&bp->timer, round_jiffies(jiffies + HZ)); } static void b44_tx(struct b44 *bp) @@ -613,10 +613,10 @@ static void b44_tx(struct b44 *bp) BUG_ON(skb == NULL); - pci_unmap_single(bp->pdev, - pci_unmap_addr(rp, mapping), - skb->len, - PCI_DMA_TODEVICE); + ssb_dma_unmap_single(bp->sdev, + rp->mapping, + skb->len, + DMA_TO_DEVICE); rp->skb = NULL; dev_kfree_skb_irq(skb); } @@ -649,63 +649,62 @@ static int b44_alloc_rx_skb(struct b44 *bp, int src_idx, u32 dest_idx_unmasked) src_map = &bp->rx_buffers[src_idx]; dest_idx = dest_idx_unmasked & (B44_RX_RING_SIZE - 1); map = &bp->rx_buffers[dest_idx]; - skb = dev_alloc_skb(RX_PKT_BUF_SZ); + skb = netdev_alloc_skb(bp->dev, RX_PKT_BUF_SZ); if (skb == NULL) return -ENOMEM; - mapping = pci_map_single(bp->pdev, skb->data, - RX_PKT_BUF_SZ, - PCI_DMA_FROMDEVICE); + mapping = ssb_dma_map_single(bp->sdev, skb->data, + RX_PKT_BUF_SZ, + DMA_FROM_DEVICE); /* Hardware bug work-around, the chip is unable to do PCI DMA to/from anything above 1GB :-( */ - if (dma_mapping_error(mapping) || - mapping + RX_PKT_BUF_SZ > B44_DMA_MASK) { + if (ssb_dma_mapping_error(bp->sdev, mapping) || + mapping + RX_PKT_BUF_SZ > DMA_BIT_MASK(30)) { /* Sigh... */ - if (!dma_mapping_error(mapping)) - pci_unmap_single(bp->pdev, mapping, RX_PKT_BUF_SZ,PCI_DMA_FROMDEVICE); + if (!ssb_dma_mapping_error(bp->sdev, mapping)) + ssb_dma_unmap_single(bp->sdev, mapping, + RX_PKT_BUF_SZ, DMA_FROM_DEVICE); dev_kfree_skb_any(skb); - skb = __dev_alloc_skb(RX_PKT_BUF_SZ,GFP_DMA); + skb = __netdev_alloc_skb(bp->dev, RX_PKT_BUF_SZ, GFP_ATOMIC|GFP_DMA); if (skb == NULL) return -ENOMEM; - mapping = pci_map_single(bp->pdev, skb->data, - RX_PKT_BUF_SZ, - PCI_DMA_FROMDEVICE); - if (dma_mapping_error(mapping) || - mapping + RX_PKT_BUF_SZ > B44_DMA_MASK) { - if (!dma_mapping_error(mapping)) - pci_unmap_single(bp->pdev, mapping, RX_PKT_BUF_SZ,PCI_DMA_FROMDEVICE); + mapping = ssb_dma_map_single(bp->sdev, skb->data, + RX_PKT_BUF_SZ, + DMA_FROM_DEVICE); + if (ssb_dma_mapping_error(bp->sdev, mapping) || + mapping + RX_PKT_BUF_SZ > DMA_BIT_MASK(30)) { + if (!ssb_dma_mapping_error(bp->sdev, mapping)) + ssb_dma_unmap_single(bp->sdev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE); dev_kfree_skb_any(skb); return -ENOMEM; } + bp->force_copybreak = 1; } - skb->dev = bp->dev; - skb_reserve(skb, bp->rx_offset); + rh = (struct rx_header *) skb->data; - rh = (struct rx_header *) - (skb->data - bp->rx_offset); rh->len = 0; rh->flags = 0; map->skb = skb; - pci_unmap_addr_set(map, mapping, mapping); + map->mapping = mapping; if (src_map != NULL) src_map->skb = NULL; - ctrl = (DESC_CTRL_LEN & (RX_PKT_BUF_SZ - bp->rx_offset)); + ctrl = (DESC_CTRL_LEN & RX_PKT_BUF_SZ); if (dest_idx == (B44_RX_RING_SIZE - 1)) ctrl |= DESC_CTRL_EOT; dp = &bp->rx_ring[dest_idx]; dp->ctrl = cpu_to_le32(ctrl); - dp->addr = cpu_to_le32((u32) mapping + bp->rx_offset + bp->dma_offset); + dp->addr = cpu_to_le32((u32) mapping + bp->dma_offset); if (bp->flags & B44_FLAG_RX_RING_HACK) - b44_sync_dma_desc_for_device(bp->pdev, bp->rx_ring_dma, - dest_idx * sizeof(dp), - DMA_BIDIRECTIONAL); + b44_sync_dma_desc_for_device(bp->sdev, bp->rx_ring_dma, + dest_idx * sizeof(*dp), + DMA_BIDIRECTIONAL); return RX_PKT_BUF_SZ; } @@ -716,7 +715,7 @@ static void b44_recycle_rx(struct b44 *bp, int src_idx, u32 dest_idx_unmasked) struct ring_info *src_map, *dest_map; struct rx_header *rh; int dest_idx; - u32 ctrl; + __le32 ctrl; dest_idx = dest_idx_unmasked & (B44_RX_RING_SIZE - 1); dest_desc = &bp->rx_ring[dest_idx]; @@ -728,13 +727,12 @@ static void b44_recycle_rx(struct b44 *bp, int src_idx, u32 dest_idx_unmasked) rh = (struct rx_header *) src_map->skb->data; rh->len = 0; rh->flags = 0; - pci_unmap_addr_set(dest_map, mapping, - pci_unmap_addr(src_map, mapping)); + dest_map->mapping = src_map->mapping; if (bp->flags & B44_FLAG_RX_RING_HACK) - b44_sync_dma_desc_for_cpu(bp->pdev, bp->rx_ring_dma, - src_idx * sizeof(src_desc), - DMA_BIDIRECTIONAL); + b44_sync_dma_desc_for_cpu(bp->sdev, bp->rx_ring_dma, + src_idx * sizeof(*src_desc), + DMA_BIDIRECTIONAL); ctrl = src_desc->ctrl; if (dest_idx == (B44_RX_RING_SIZE - 1)) @@ -748,13 +746,13 @@ static void b44_recycle_rx(struct b44 *bp, int src_idx, u32 dest_idx_unmasked) src_map->skb = NULL; if (bp->flags & B44_FLAG_RX_RING_HACK) - b44_sync_dma_desc_for_device(bp->pdev, bp->rx_ring_dma, - dest_idx * sizeof(dest_desc), - DMA_BIDIRECTIONAL); + b44_sync_dma_desc_for_device(bp->sdev, bp->rx_ring_dma, + dest_idx * sizeof(*dest_desc), + DMA_BIDIRECTIONAL); - pci_dma_sync_single_for_device(bp->pdev, src_desc->addr, + ssb_dma_sync_single_for_device(bp->sdev, dest_map->mapping, RX_PKT_BUF_SZ, - PCI_DMA_FROMDEVICE); + DMA_FROM_DEVICE); } static int b44_rx(struct b44 *bp, int budget) @@ -770,21 +768,21 @@ static int b44_rx(struct b44 *bp, int budget) while (cons != prod && budget > 0) { struct ring_info *rp = &bp->rx_buffers[cons]; struct sk_buff *skb = rp->skb; - dma_addr_t map = pci_unmap_addr(rp, mapping); + dma_addr_t map = rp->mapping; struct rx_header *rh; u16 len; - pci_dma_sync_single_for_cpu(bp->pdev, map, + ssb_dma_sync_single_for_cpu(bp->sdev, map, RX_PKT_BUF_SZ, - PCI_DMA_FROMDEVICE); + DMA_FROM_DEVICE); rh = (struct rx_header *) skb->data; - len = cpu_to_le16(rh->len); - if ((len > (RX_PKT_BUF_SZ - bp->rx_offset)) || + len = le16_to_cpu(rh->len); + if ((len > (RX_PKT_BUF_SZ - RX_PKT_OFFSET)) || (rh->flags & cpu_to_le16(RX_FLAG_ERRORS))) { drop_it: b44_recycle_rx(bp, cons, bp->rx_prod); drop_it_no_recycle: - bp->stats.rx_dropped++; + bp->dev->stats.rx_dropped++; goto next_pkt; } @@ -794,7 +792,7 @@ static int b44_rx(struct b44 *bp, int budget) do { udelay(2); barrier(); - len = cpu_to_le16(rh->len); + len = le16_to_cpu(rh->len); } while (len == 0 && i++ < 5); if (len == 0) goto drop_it; @@ -803,16 +801,16 @@ static int b44_rx(struct b44 *bp, int budget) /* Omit CRC. */ len -= 4; - if (len > RX_COPY_THRESHOLD) { + if (!bp->force_copybreak && len > RX_COPY_THRESHOLD) { int skb_size; skb_size = b44_alloc_rx_skb(bp, cons, bp->rx_prod); if (skb_size < 0) goto drop_it; - pci_unmap_single(bp->pdev, map, - skb_size, PCI_DMA_FROMDEVICE); + ssb_dma_unmap_single(bp->sdev, map, + skb_size, DMA_FROM_DEVICE); /* Leave out rx_header */ - skb_put(skb, len+bp->rx_offset); - skb_pull(skb,bp->rx_offset); + skb_put(skb, len + RX_PKT_OFFSET); + skb_pull(skb, RX_PKT_OFFSET); } else { struct sk_buff *copy_skb; @@ -821,18 +819,16 @@ static int b44_rx(struct b44 *bp, int budget) if (copy_skb == NULL) goto drop_it_no_recycle; - copy_skb->dev = bp->dev; skb_reserve(copy_skb, 2); skb_put(copy_skb, len); /* DMA sync done above, copy just the actual packet */ - memcpy(copy_skb->data, skb->data+bp->rx_offset, len); - + skb_copy_from_linear_data_offset(skb, RX_PKT_OFFSET, + copy_skb->data, len); skb = copy_skb; } skb->ip_summed = CHECKSUM_NONE; skb->protocol = eth_type_trans(skb, bp->dev); netif_receive_skb(skb); - bp->dev->last_rx = jiffies; received++; budget--; next_pkt: @@ -847,56 +843,44 @@ static int b44_rx(struct b44 *bp, int budget) return received; } -static int b44_poll(struct net_device *netdev, int *budget) +static int b44_poll(struct napi_struct *napi, int budget) { - struct b44 *bp = netdev_priv(netdev); - int done; + struct b44 *bp = container_of(napi, struct b44, napi); + int work_done; + unsigned long flags; - spin_lock_irq(&bp->lock); + spin_lock_irqsave(&bp->lock, flags); if (bp->istat & (ISTAT_TX | ISTAT_TO)) { /* spin_lock(&bp->tx_lock); */ b44_tx(bp); /* spin_unlock(&bp->tx_lock); */ } - spin_unlock_irq(&bp->lock); - - done = 1; - if (bp->istat & ISTAT_RX) { - int orig_budget = *budget; - int work_done; - - if (orig_budget > netdev->quota) - orig_budget = netdev->quota; - - work_done = b44_rx(bp, orig_budget); + spin_unlock_irqrestore(&bp->lock, flags); - *budget -= work_done; - netdev->quota -= work_done; - - if (work_done >= orig_budget) - done = 0; - } + work_done = 0; + if (bp->istat & ISTAT_RX) + work_done += b44_rx(bp, budget); if (bp->istat & ISTAT_ERRORS) { - spin_lock_irq(&bp->lock); + spin_lock_irqsave(&bp->lock, flags); b44_halt(bp); b44_init_rings(bp); - b44_init_hw(bp, 1); + b44_init_hw(bp, B44_FULL_RESET_SKIP_PHY); netif_wake_queue(bp->dev); - spin_unlock_irq(&bp->lock); - done = 1; + spin_unlock_irqrestore(&bp->lock, flags); + work_done = 0; } - if (done) { - netif_rx_complete(netdev); + if (work_done < budget) { + napi_complete(napi); b44_enable_ints(bp); } - return (done ? 0 : 1); + return work_done; } -static irqreturn_t b44_interrupt(int irq, void *dev_id, struct pt_regs *regs) +static irqreturn_t b44_interrupt(int irq, void *dev_id) { struct net_device *dev = dev_id; struct b44 *bp = netdev_priv(dev); @@ -908,8 +892,9 @@ static irqreturn_t b44_interrupt(int irq, void *dev_id, struct pt_regs *regs) istat = br32(bp, B44_ISTAT); imask = br32(bp, B44_IMASK); - /* ??? What the fuck is the purpose of the interrupt mask - * ??? register if we have to mask it out by hand anyways? + /* The interrupt mask register controls which interrupt bits + * will actually raise an interrupt to the CPU when set by hw/firmware, + * but doesn't mask off the bits. */ istat &= imask; if (istat) { @@ -920,16 +905,13 @@ static irqreturn_t b44_interrupt(int irq, void *dev_id, struct pt_regs *regs) goto irq_ack; } - if (netif_rx_schedule_prep(dev)) { + if (napi_schedule_prep(&bp->napi)) { /* NOTE: These writes are posted by the readback of * the ISTAT register below. */ bp->istat = istat; __b44_disable_ints(bp); - __netif_rx_schedule(dev); - } else { - printk(KERN_ERR PFX "%s: Error, poll already scheduled\n", - dev->name); + __napi_schedule(&bp->napi); } irq_ack: @@ -951,7 +933,7 @@ static void b44_tx_timeout(struct net_device *dev) b44_halt(bp); b44_init_rings(bp); - b44_init_hw(bp, 1); + b44_init_hw(bp, B44_FULL_RESET); spin_unlock_irq(&bp->lock); @@ -960,16 +942,16 @@ static void b44_tx_timeout(struct net_device *dev) netif_wake_queue(dev); } -static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t b44_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct b44 *bp = netdev_priv(dev); - struct sk_buff *bounce_skb; int rc = NETDEV_TX_OK; dma_addr_t mapping; u32 len, entry, ctrl; + unsigned long flags; len = skb->len; - spin_lock_irq(&bp->lock); + spin_lock_irqsave(&bp->lock, flags); /* This is a hard error, log it. */ if (unlikely(TX_BUFFS_AVAIL(bp) < 1)) { @@ -979,35 +961,37 @@ static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev) goto err_out; } - mapping = pci_map_single(bp->pdev, skb->data, len, PCI_DMA_TODEVICE); - if (dma_mapping_error(mapping) || mapping + len > B44_DMA_MASK) { + mapping = ssb_dma_map_single(bp->sdev, skb->data, len, DMA_TO_DEVICE); + if (ssb_dma_mapping_error(bp->sdev, mapping) || mapping + len > DMA_BIT_MASK(30)) { + struct sk_buff *bounce_skb; + /* Chip can't handle DMA to/from >1GB, use bounce buffer */ - if (!dma_mapping_error(mapping)) - pci_unmap_single(bp->pdev, mapping, len, PCI_DMA_TODEVICE); + if (!ssb_dma_mapping_error(bp->sdev, mapping)) + ssb_dma_unmap_single(bp->sdev, mapping, len, + DMA_TO_DEVICE); - bounce_skb = __dev_alloc_skb(TX_PKT_BUF_SZ, - GFP_ATOMIC|GFP_DMA); + bounce_skb = __netdev_alloc_skb(dev, len, GFP_ATOMIC | GFP_DMA); if (!bounce_skb) goto err_out; - mapping = pci_map_single(bp->pdev, bounce_skb->data, - len, PCI_DMA_TODEVICE); - if (dma_mapping_error(mapping) || mapping + len > B44_DMA_MASK) { - if (!dma_mapping_error(mapping)) - pci_unmap_single(bp->pdev, mapping, - len, PCI_DMA_TODEVICE); + mapping = ssb_dma_map_single(bp->sdev, bounce_skb->data, + len, DMA_TO_DEVICE); + if (ssb_dma_mapping_error(bp->sdev, mapping) || mapping + len > DMA_BIT_MASK(30)) { + if (!ssb_dma_mapping_error(bp->sdev, mapping)) + ssb_dma_unmap_single(bp->sdev, mapping, + len, DMA_TO_DEVICE); dev_kfree_skb_any(bounce_skb); goto err_out; } - memcpy(skb_put(bounce_skb, len), skb->data, skb->len); + skb_copy_from_linear_data(skb, skb_put(bounce_skb, len), len); dev_kfree_skb_any(skb); skb = bounce_skb; } entry = bp->tx_prod; bp->tx_buffers[entry].skb = skb; - pci_unmap_addr_set(&bp->tx_buffers[entry], mapping, mapping); + bp->tx_buffers[entry].mapping = mapping; ctrl = (len & DESC_CTRL_LEN); ctrl |= DESC_CTRL_IOC | DESC_CTRL_SOF | DESC_CTRL_EOF; @@ -1018,9 +1002,9 @@ static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev) bp->tx_ring[entry].addr = cpu_to_le32((u32) mapping+bp->dma_offset); if (bp->flags & B44_FLAG_TX_RING_HACK) - b44_sync_dma_desc_for_device(bp->pdev, bp->tx_ring_dma, - entry * sizeof(bp->tx_ring[0]), - DMA_TO_DEVICE); + b44_sync_dma_desc_for_device(bp->sdev, bp->tx_ring_dma, + entry * sizeof(bp->tx_ring[0]), + DMA_TO_DEVICE); entry = NEXT_TX(entry); @@ -1040,7 +1024,7 @@ static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev) dev->trans_start = jiffies; out_unlock: - spin_unlock_irq(&bp->lock); + spin_unlock_irqrestore(&bp->lock, flags); return rc; @@ -1068,7 +1052,7 @@ static int b44_change_mtu(struct net_device *dev, int new_mtu) b44_halt(bp); dev->mtu = new_mtu; b44_init_rings(bp); - b44_init_hw(bp, 1); + b44_init_hw(bp, B44_FULL_RESET); spin_unlock_irq(&bp->lock); b44_enable_ints(bp); @@ -1093,10 +1077,8 @@ static void b44_free_rings(struct b44 *bp) if (rp->skb == NULL) continue; - pci_unmap_single(bp->pdev, - pci_unmap_addr(rp, mapping), - RX_PKT_BUF_SZ, - PCI_DMA_FROMDEVICE); + ssb_dma_unmap_single(bp->sdev, rp->mapping, RX_PKT_BUF_SZ, + DMA_FROM_DEVICE); dev_kfree_skb_any(rp->skb); rp->skb = NULL; } @@ -1107,10 +1089,8 @@ static void b44_free_rings(struct b44 *bp) if (rp->skb == NULL) continue; - pci_unmap_single(bp->pdev, - pci_unmap_addr(rp, mapping), - rp->skb->len, - PCI_DMA_TODEVICE); + ssb_dma_unmap_single(bp->sdev, rp->mapping, rp->skb->len, + DMA_TO_DEVICE); dev_kfree_skb_any(rp->skb); rp->skb = NULL; } @@ -1132,14 +1112,14 @@ static void b44_init_rings(struct b44 *bp) memset(bp->tx_ring, 0, B44_TX_RING_BYTES); if (bp->flags & B44_FLAG_RX_RING_HACK) - dma_sync_single_for_device(&bp->pdev->dev, bp->rx_ring_dma, - DMA_TABLE_BYTES, - PCI_DMA_BIDIRECTIONAL); + ssb_dma_sync_single_for_device(bp->sdev, bp->rx_ring_dma, + DMA_TABLE_BYTES, + DMA_BIDIRECTIONAL); if (bp->flags & B44_FLAG_TX_RING_HACK) - dma_sync_single_for_device(&bp->pdev->dev, bp->tx_ring_dma, - DMA_TABLE_BYTES, - PCI_DMA_TODEVICE); + ssb_dma_sync_single_for_device(bp->sdev, bp->tx_ring_dma, + DMA_TABLE_BYTES, + DMA_TO_DEVICE); for (i = 0; i < bp->rx_pending; i++) { if (b44_alloc_rx_skb(bp, -1, i) < 0) @@ -1159,25 +1139,27 @@ static void b44_free_consistent(struct b44 *bp) bp->tx_buffers = NULL; if (bp->rx_ring) { if (bp->flags & B44_FLAG_RX_RING_HACK) { - dma_unmap_single(&bp->pdev->dev, bp->rx_ring_dma, - DMA_TABLE_BYTES, - DMA_BIDIRECTIONAL); + ssb_dma_unmap_single(bp->sdev, bp->rx_ring_dma, + DMA_TABLE_BYTES, + DMA_BIDIRECTIONAL); kfree(bp->rx_ring); } else - pci_free_consistent(bp->pdev, DMA_TABLE_BYTES, - bp->rx_ring, bp->rx_ring_dma); + ssb_dma_free_consistent(bp->sdev, DMA_TABLE_BYTES, + bp->rx_ring, bp->rx_ring_dma, + GFP_KERNEL); bp->rx_ring = NULL; bp->flags &= ~B44_FLAG_RX_RING_HACK; } if (bp->tx_ring) { if (bp->flags & B44_FLAG_TX_RING_HACK) { - dma_unmap_single(&bp->pdev->dev, bp->tx_ring_dma, - DMA_TABLE_BYTES, - DMA_TO_DEVICE); + ssb_dma_unmap_single(bp->sdev, bp->tx_ring_dma, + DMA_TABLE_BYTES, + DMA_TO_DEVICE); kfree(bp->tx_ring); } else - pci_free_consistent(bp->pdev, DMA_TABLE_BYTES, - bp->tx_ring, bp->tx_ring_dma); + ssb_dma_free_consistent(bp->sdev, DMA_TABLE_BYTES, + bp->tx_ring, bp->tx_ring_dma, + GFP_KERNEL); bp->tx_ring = NULL; bp->flags &= ~B44_FLAG_TX_RING_HACK; } @@ -1187,22 +1169,22 @@ static void b44_free_consistent(struct b44 *bp) * Must not be invoked with interrupt sources disabled and * the hardware shutdown down. Can sleep. */ -static int b44_alloc_consistent(struct b44 *bp) +static int b44_alloc_consistent(struct b44 *bp, gfp_t gfp) { int size; size = B44_RX_RING_SIZE * sizeof(struct ring_info); - bp->rx_buffers = kzalloc(size, GFP_KERNEL); + bp->rx_buffers = kzalloc(size, gfp); if (!bp->rx_buffers) goto out_err; size = B44_TX_RING_SIZE * sizeof(struct ring_info); - bp->tx_buffers = kzalloc(size, GFP_KERNEL); + bp->tx_buffers = kzalloc(size, gfp); if (!bp->tx_buffers) goto out_err; size = DMA_TABLE_BYTES; - bp->rx_ring = pci_alloc_consistent(bp->pdev, size, &bp->rx_ring_dma); + bp->rx_ring = ssb_dma_alloc_consistent(bp->sdev, size, &bp->rx_ring_dma, gfp); if (!bp->rx_ring) { /* Allocation may have failed due to pci_alloc_consistent insisting on use of GFP_DMA, which is more restrictive @@ -1210,16 +1192,16 @@ static int b44_alloc_consistent(struct b44 *bp) struct dma_desc *rx_ring; dma_addr_t rx_ring_dma; - rx_ring = kzalloc(size, GFP_KERNEL); + rx_ring = kzalloc(size, gfp); if (!rx_ring) goto out_err; - rx_ring_dma = dma_map_single(&bp->pdev->dev, rx_ring, - DMA_TABLE_BYTES, - DMA_BIDIRECTIONAL); + rx_ring_dma = ssb_dma_map_single(bp->sdev, rx_ring, + DMA_TABLE_BYTES, + DMA_BIDIRECTIONAL); - if (dma_mapping_error(rx_ring_dma) || - rx_ring_dma + size > B44_DMA_MASK) { + if (ssb_dma_mapping_error(bp->sdev, rx_ring_dma) || + rx_ring_dma + size > DMA_BIT_MASK(30)) { kfree(rx_ring); goto out_err; } @@ -1229,24 +1211,24 @@ static int b44_alloc_consistent(struct b44 *bp) bp->flags |= B44_FLAG_RX_RING_HACK; } - bp->tx_ring = pci_alloc_consistent(bp->pdev, size, &bp->tx_ring_dma); + bp->tx_ring = ssb_dma_alloc_consistent(bp->sdev, size, &bp->tx_ring_dma, gfp); if (!bp->tx_ring) { - /* Allocation may have failed due to pci_alloc_consistent + /* Allocation may have failed due to ssb_dma_alloc_consistent insisting on use of GFP_DMA, which is more restrictive than necessary... */ struct dma_desc *tx_ring; dma_addr_t tx_ring_dma; - tx_ring = kzalloc(size, GFP_KERNEL); + tx_ring = kzalloc(size, gfp); if (!tx_ring) goto out_err; - tx_ring_dma = dma_map_single(&bp->pdev->dev, tx_ring, - DMA_TABLE_BYTES, - DMA_TO_DEVICE); + tx_ring_dma = ssb_dma_map_single(bp->sdev, tx_ring, + DMA_TABLE_BYTES, + DMA_TO_DEVICE); - if (dma_mapping_error(tx_ring_dma) || - tx_ring_dma + size > B44_DMA_MASK) { + if (ssb_dma_mapping_error(bp->sdev, tx_ring_dma) || + tx_ring_dma + size > DMA_BIT_MASK(30)) { kfree(tx_ring); goto out_err; } @@ -1276,12 +1258,20 @@ static void b44_clear_stats(struct b44 *bp) } /* bp->lock is held. */ -static void b44_chip_reset(struct b44 *bp) +static void b44_chip_reset(struct b44 *bp, int reset_kind) { - if (ssb_is_core_up(bp)) { + struct ssb_device *sdev = bp->sdev; + bool was_enabled; + + was_enabled = ssb_device_is_enabled(bp->sdev); + + ssb_device_enable(bp->sdev, 0); + ssb_pcicore_dev_irqvecs_enable(&sdev->bus->pcicore, sdev); + + if (was_enabled) { bw32(bp, B44_RCV_LAZY, 0); bw32(bp, B44_ENET_CTRL, ENET_CTRL_DISABLE); - b44_wait_bit(bp, B44_ENET_CTRL, ENET_CTRL_DISABLE, 100, 1); + b44_wait_bit(bp, B44_ENET_CTRL, ENET_CTRL_DISABLE, 200, 1); bw32(bp, B44_DMATX_CTRL, 0); bp->tx_prod = bp->tx_cons = 0; if (br32(bp, B44_DMARX_STAT) & DMARX_STAT_EMASK) { @@ -1290,19 +1280,34 @@ static void b44_chip_reset(struct b44 *bp) } bw32(bp, B44_DMARX_CTRL, 0); bp->rx_prod = bp->rx_cons = 0; - } else { - ssb_pci_setup(bp, (bp->core_unit == 0 ? - SBINTVEC_ENET0 : - SBINTVEC_ENET1)); } - ssb_core_reset(bp); - b44_clear_stats(bp); - /* Make PHY accessible. */ - bw32(bp, B44_MDIO_CTRL, (MDIO_CTRL_PREAMBLE | - (0x0d & MDIO_CTRL_MAXF_MASK))); + /* + * Don't enable PHY if we are doing a partial reset + * we are probably going to power down + */ + if (reset_kind == B44_CHIP_RESET_PARTIAL) + return; + + switch (sdev->bus->bustype) { + case SSB_BUSTYPE_SSB: + bw32(bp, B44_MDIO_CTRL, (MDIO_CTRL_PREAMBLE | + (DIV_ROUND_CLOSEST(ssb_clockspeed(sdev->bus), + B44_MDC_RATIO) + & MDIO_CTRL_MAXF_MASK))); + break; + case SSB_BUSTYPE_PCI: + bw32(bp, B44_MDIO_CTRL, (MDIO_CTRL_PREAMBLE | + (0x0d & MDIO_CTRL_MAXF_MASK))); + break; + case SSB_BUSTYPE_PCMCIA: + case SSB_BUSTYPE_SDIO: + WARN_ON(1); /* A device with this bus does not exist. */ + break; + } + br32(bp, B44_MDIO_CTRL); if (!(br32(bp, B44_DEVCTRL) & DEVCTRL_IPP)) { @@ -1325,7 +1330,14 @@ static void b44_chip_reset(struct b44 *bp) static void b44_halt(struct b44 *bp) { b44_disable_ints(bp); - b44_chip_reset(bp); + /* reset PHY */ + b44_phy_reset(bp); + /* power down PHY */ + printk(KERN_INFO PFX "%s: powering down PHY\n", bp->dev->name); + bw32(bp, B44_MAC_CTRL, MAC_CTRL_PHY_PDOWN); + /* now reset the chip, but without enabling the MAC&PHY + * part of it. This has to be done _after_ we shut down the PHY */ + b44_chip_reset(bp, B44_CHIP_RESET_PARTIAL); } /* bp->lock is held. */ @@ -1345,6 +1357,7 @@ static int b44_set_mac_addr(struct net_device *dev, void *p) { struct b44 *bp = netdev_priv(dev); struct sockaddr *addr = p; + u32 val; if (netif_running(dev)) return -EBUSY; @@ -1355,7 +1368,11 @@ static int b44_set_mac_addr(struct net_device *dev, void *p) memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); spin_lock_irq(&bp->lock); - __b44_set_mac_addr(bp); + + val = br32(bp, B44_RXCONFIG); + if (!(val & RXCONFIG_CAM_ABSENT)) + __b44_set_mac_addr(bp); + spin_unlock_irq(&bp->lock); return 0; @@ -1365,12 +1382,12 @@ static int b44_set_mac_addr(struct net_device *dev, void *p) * packet processing. Invoked with bp->lock held. */ static void __b44_set_rx_mode(struct net_device *); -static void b44_init_hw(struct b44 *bp, int full_reset) +static void b44_init_hw(struct b44 *bp, int reset_kind) { u32 val; - b44_chip_reset(bp); - if (full_reset) { + b44_chip_reset(bp, B44_CHIP_RESET_FULL); + if (reset_kind == B44_FULL_RESET) { b44_phy_reset(bp); b44_setup_phy(bp); } @@ -1387,20 +1404,20 @@ static void b44_init_hw(struct b44 *bp, int full_reset) bw32(bp, B44_TXMAXLEN, bp->dev->mtu + ETH_HLEN + 8 + RX_HEADER_LEN); bw32(bp, B44_TX_WMARK, 56); /* XXX magic */ - if (full_reset) { + if (reset_kind == B44_PARTIAL_RESET) { + bw32(bp, B44_DMARX_CTRL, (DMARX_CTRL_ENABLE | + (RX_PKT_OFFSET << DMARX_CTRL_ROSHIFT))); + } else { bw32(bp, B44_DMATX_CTRL, DMATX_CTRL_ENABLE); bw32(bp, B44_DMATX_ADDR, bp->tx_ring_dma + bp->dma_offset); bw32(bp, B44_DMARX_CTRL, (DMARX_CTRL_ENABLE | - (bp->rx_offset << DMARX_CTRL_ROSHIFT))); + (RX_PKT_OFFSET << DMARX_CTRL_ROSHIFT))); bw32(bp, B44_DMARX_ADDR, bp->rx_ring_dma + bp->dma_offset); bw32(bp, B44_DMARX_PTR, bp->rx_pending); bp->rx_prod = bp->rx_pending; bw32(bp, B44_MIB_CTRL, MIB_CTRL_CLR_ON_READ); - } else { - bw32(bp, B44_DMARX_CTRL, (DMARX_CTRL_ENABLE | - (bp->rx_offset << DMARX_CTRL_ROSHIFT))); } val = br32(bp, B44_ENET_CTRL); @@ -1412,18 +1429,21 @@ static int b44_open(struct net_device *dev) struct b44 *bp = netdev_priv(dev); int err; - err = b44_alloc_consistent(bp); + err = b44_alloc_consistent(bp, GFP_KERNEL); if (err) goto out; + napi_enable(&bp->napi); + b44_init_rings(bp); - b44_init_hw(bp, 1); + b44_init_hw(bp, B44_FULL_RESET); b44_check_phy(bp); err = request_irq(dev->irq, b44_interrupt, IRQF_SHARED, dev->name, dev); if (unlikely(err < 0)) { - b44_chip_reset(bp); + napi_disable(&bp->napi); + b44_chip_reset(bp, B44_CHIP_RESET_PARTIAL); b44_free_rings(bp); b44_free_consistent(bp); goto out; @@ -1441,18 +1461,6 @@ out: return err; } -#if 0 -/*static*/ void b44_dump_state(struct b44 *bp) -{ - u32 val32, val32_2, val32_3, val32_4, val32_5; - u16 val16; - - pci_read_config_word(bp->pdev, PCI_STATUS, &val16); - printk("DEBUG: PCI status [%04x] \n", val16); - -} -#endif - #ifdef CONFIG_NET_POLL_CONTROLLER /* * Polling receive - used by netconsole and other diagnostic tools @@ -1461,7 +1469,7 @@ out: static void b44_poll_controller(struct net_device *dev) { disable_irq(dev->irq); - b44_interrupt(dev->irq, dev, NULL); + b44_interrupt(dev->irq, dev); enable_irq(dev->irq); } #endif @@ -1515,14 +1523,13 @@ static void b44_setup_pseudo_magicp(struct b44 *bp) u8 *pwol_pattern; u8 pwol_mask[B44_PMASK_SIZE]; - pwol_pattern = kmalloc(B44_PATTERN_SIZE, GFP_KERNEL); + pwol_pattern = kzalloc(B44_PATTERN_SIZE, GFP_KERNEL); if (!pwol_pattern) { printk(KERN_ERR PFX "Memory not available for WOL\n"); return; } /* Ipv4 magic packet pattern - pattern 0.*/ - memset(pwol_pattern, 0, B44_PATTERN_SIZE); memset(pwol_mask, 0, B44_PMASK_SIZE); plen0 = b44_magic_pattern(bp->dev->dev_addr, pwol_pattern, pwol_mask, B44_ETHIPV4UDP_HLEN); @@ -1564,10 +1571,24 @@ static void b44_setup_pseudo_magicp(struct b44 *bp) } +#ifdef CONFIG_B44_PCI +static void b44_setup_wol_pci(struct b44 *bp) +{ + u16 val; + + if (bp->sdev->bus->bustype != SSB_BUSTYPE_SSB) { + bw32(bp, SSB_TMSLOW, br32(bp, SSB_TMSLOW) | SSB_TMSLOW_PE); + pci_read_config_word(bp->sdev->bus->host_pci, SSB_PMCSR, &val); + pci_write_config_word(bp->sdev->bus->host_pci, SSB_PMCSR, val | SSB_PE); + } +} +#else +static inline void b44_setup_wol_pci(struct b44 *bp) { } +#endif /* CONFIG_B44_PCI */ + static void b44_setup_wol(struct b44 *bp) { u32 val; - u16 pmval; bw32(bp, B44_RXCONFIG, RXCONFIG_ALLMULTI); @@ -1591,13 +1612,7 @@ static void b44_setup_wol(struct b44 *bp) } else { b44_setup_pseudo_magicp(bp); } - - val = br32(bp, B44_SBTMSLOW); - bw32(bp, B44_SBTMSLOW, val | SBTMSLOW_PE); - - pci_read_config_word(bp->pdev, SSB_PMCSR, &pmval); - pci_write_config_word(bp->pdev, SSB_PMCSR, pmval | SSB_PE); - + b44_setup_wol_pci(bp); } static int b44_close(struct net_device *dev) @@ -1606,15 +1621,12 @@ static int b44_close(struct net_device *dev) netif_stop_queue(dev); - netif_poll_disable(dev); + napi_disable(&bp->napi); del_timer_sync(&bp->timer); spin_lock_irq(&bp->lock); -#if 0 - b44_dump_state(bp); -#endif b44_halt(bp); b44_free_rings(bp); netif_carrier_off(dev); @@ -1623,10 +1635,8 @@ static int b44_close(struct net_device *dev) free_irq(dev->irq, dev); - netif_poll_enable(dev); - if (bp->flags & B44_FLAG_WOL_ENABLE) { - b44_init_hw(bp, 0); + b44_init_hw(bp, B44_PARTIAL_RESET); b44_setup_wol(bp); } @@ -1638,7 +1648,7 @@ static int b44_close(struct net_device *dev) static struct net_device_stats *b44_get_stats(struct net_device *dev) { struct b44 *bp = netdev_priv(dev); - struct net_device_stats *nstat = &bp->stats; + struct net_device_stats *nstat = &dev->stats; struct b44_hw_stats *hwstat = &bp->hw_stats; /* Convert HW stats into netdevice stats. */ @@ -1697,23 +1707,24 @@ static void __b44_set_rx_mode(struct net_device *dev) val = br32(bp, B44_RXCONFIG); val &= ~(RXCONFIG_PROMISC | RXCONFIG_ALLMULTI); - if (dev->flags & IFF_PROMISC) { + if ((dev->flags & IFF_PROMISC) || (val & RXCONFIG_CAM_ABSENT)) { val |= RXCONFIG_PROMISC; bw32(bp, B44_RXCONFIG, val); } else { unsigned char zero[6] = {0, 0, 0, 0, 0, 0}; - int i = 0; + int i = 1; __b44_set_mac_addr(bp); - if (dev->flags & IFF_ALLMULTI) + if ((dev->flags & IFF_ALLMULTI) || + (dev->mc_count > B44_MCAST_TABLE_SIZE)) val |= RXCONFIG_ALLMULTI; else i = __b44_load_mcast(bp, dev); - for (; i < 64; i++) { + for (; i < 64; i++) __b44_cam_write(bp, zero, i); - } + bw32(bp, B44_RXCONFIG, val); val = br32(bp, B44_CAM_CTRL); bw32(bp, B44_CAM_CTRL, val | CAM_CTRL_ENABLE); @@ -1744,11 +1755,22 @@ static void b44_set_msglevel(struct net_device *dev, u32 value) static void b44_get_drvinfo (struct net_device *dev, struct ethtool_drvinfo *info) { struct b44 *bp = netdev_priv(dev); - struct pci_dev *pci_dev = bp->pdev; + struct ssb_bus *bus = bp->sdev->bus; - strcpy (info->driver, DRV_MODULE_NAME); - strcpy (info->version, DRV_MODULE_VERSION); - strcpy (info->bus_info, pci_name(pci_dev)); + strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver)); + strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version)); + switch (bus->bustype) { + case SSB_BUSTYPE_PCI: + strlcpy(info->bus_info, pci_name(bus->host_pci), sizeof(info->bus_info)); + break; + case SSB_BUSTYPE_SSB: + strlcpy(info->bus_info, "SSB", sizeof(info->bus_info)); + break; + case SSB_BUSTYPE_PCMCIA: + case SSB_BUSTYPE_SDIO: + WARN_ON(1); /* A device with this bus does not exist. */ + break; + } } static int b44_nway_reset(struct net_device *dev) @@ -1901,7 +1923,7 @@ static int b44_set_ringparam(struct net_device *dev, b44_halt(bp); b44_init_rings(bp); - b44_init_hw(bp, 1); + b44_init_hw(bp, B44_FULL_RESET); netif_wake_queue(bp->dev); spin_unlock_irq(&bp->lock); @@ -1944,7 +1966,7 @@ static int b44_set_pauseparam(struct net_device *dev, if (bp->flags & B44_FLAG_PAUSE_AUTO) { b44_halt(bp); b44_init_rings(bp); - b44_init_hw(bp, 1); + b44_init_hw(bp, B44_FULL_RESET); } else { __b44_set_flow_ctrl(bp, bp->flags); } @@ -1964,9 +1986,14 @@ static void b44_get_strings(struct net_device *dev, u32 stringset, u8 *data) } } -static int b44_get_stats_count(struct net_device *dev) +static int b44_get_sset_count(struct net_device *dev, int sset) { - return ARRAY_SIZE(b44_gstrings); + switch (sset) { + case ETH_SS_STATS: + return ARRAY_SIZE(b44_gstrings); + default: + return -EOPNOTSUPP; + } } static void b44_get_ethtool_stats(struct net_device *dev, @@ -2027,9 +2054,8 @@ static const struct ethtool_ops b44_ethtool_ops = { .get_msglevel = b44_get_msglevel, .set_msglevel = b44_set_msglevel, .get_strings = b44_get_strings, - .get_stats_count = b44_get_stats_count, + .get_sset_count = b44_get_sset_count, .get_ethtool_stats = b44_get_ethtool_stats, - .get_perm_addr = ethtool_op_get_perm_addr, }; static int b44_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) @@ -2048,33 +2074,28 @@ out: return err; } -/* Read 128-bytes of EEPROM. */ -static int b44_read_eeprom(struct b44 *bp, u8 *data) -{ - long i; - u16 *ptr = (u16 *) data; - - for (i = 0; i < 128; i += 2) - ptr[i / 2] = readw(bp->regs + 4096 + i); - - return 0; -} - static int __devinit b44_get_invariants(struct b44 *bp) { - u8 eeprom[128]; - int err; + struct ssb_device *sdev = bp->sdev; + int err = 0; + u8 *addr; - err = b44_read_eeprom(bp, &eeprom[0]); - if (err) - goto out; + bp->dma_offset = ssb_dma_translation(sdev); - bp->dev->dev_addr[0] = eeprom[79]; - bp->dev->dev_addr[1] = eeprom[78]; - bp->dev->dev_addr[2] = eeprom[81]; - bp->dev->dev_addr[3] = eeprom[80]; - bp->dev->dev_addr[4] = eeprom[83]; - bp->dev->dev_addr[5] = eeprom[82]; + if (sdev->bus->bustype == SSB_BUSTYPE_SSB && + instance > 1) { + addr = sdev->bus->sprom.et1mac; + bp->phy_addr = sdev->bus->sprom.et1phyaddr; + } else { + addr = sdev->bus->sprom.et0mac; + bp->phy_addr = sdev->bus->sprom.et0phyaddr; + } + /* Some ROMs have buggy PHY addresses with the high + * bits set (sign extension?). Truncate them to a + * valid PHY address. */ + bp->phy_addr &= 0x1F; + + memcpy(bp->dev->dev_addr, addr, 6); if (!is_valid_ether_addr(&bp->dev->dev_addr[0])){ printk(KERN_ERR PFX "Invalid MAC address found in EEPROM\n"); @@ -2083,136 +2104,97 @@ static int __devinit b44_get_invariants(struct b44 *bp) memcpy(bp->dev->perm_addr, bp->dev->dev_addr, bp->dev->addr_len); - bp->phy_addr = eeprom[90] & 0x1f; - - /* With this, plus the rx_header prepended to the data by the - * hardware, we'll land the ethernet header on a 2-byte boundary. - */ - bp->rx_offset = 30; - bp->imask = IMASK_DEF; - bp->core_unit = ssb_core_unit(bp); - bp->dma_offset = SB_PCI_DMA; - /* XXX - really required? bp->flags |= B44_FLAG_BUGGY_TXPTR; - */ + */ - if (ssb_get_core_rev(bp) >= 7) - bp->flags |= B44_FLAG_B0_ANDLATER; + if (bp->sdev->id.revision >= 7) + bp->flags |= B44_FLAG_B0_ANDLATER; -out: return err; } -static int __devinit b44_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) +static const struct net_device_ops b44_netdev_ops = { + .ndo_open = b44_open, + .ndo_stop = b44_close, + .ndo_start_xmit = b44_start_xmit, + .ndo_get_stats = b44_get_stats, + .ndo_set_multicast_list = b44_set_rx_mode, + .ndo_set_mac_address = b44_set_mac_addr, + .ndo_validate_addr = eth_validate_addr, + .ndo_do_ioctl = b44_ioctl, + .ndo_tx_timeout = b44_tx_timeout, + .ndo_change_mtu = b44_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = b44_poll_controller, +#endif +}; + +static int __devinit b44_init_one(struct ssb_device *sdev, + const struct ssb_device_id *ent) { static int b44_version_printed = 0; - unsigned long b44reg_base, b44reg_len; struct net_device *dev; struct b44 *bp; - int err, i; + int err; + + instance++; if (b44_version_printed++ == 0) printk(KERN_INFO "%s", version); - err = pci_enable_device(pdev); - if (err) { - dev_err(&pdev->dev, "Cannot enable PCI device, " - "aborting.\n"); - return err; - } - - if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { - dev_err(&pdev->dev, - "Cannot find proper PCI device " - "base address, aborting.\n"); - err = -ENODEV; - goto err_out_disable_pdev; - } - - err = pci_request_regions(pdev, DRV_MODULE_NAME); - if (err) { - dev_err(&pdev->dev, - "Cannot obtain PCI resources, aborting.\n"); - goto err_out_disable_pdev; - } - - pci_set_master(pdev); - - err = pci_set_dma_mask(pdev, (u64) B44_DMA_MASK); - if (err) { - dev_err(&pdev->dev, "No usable DMA configuration, aborting.\n"); - goto err_out_free_res; - } - - err = pci_set_consistent_dma_mask(pdev, (u64) B44_DMA_MASK); - if (err) { - dev_err(&pdev->dev, "No usable DMA configuration, aborting.\n"); - goto err_out_free_res; - } - - b44reg_base = pci_resource_start(pdev, 0); - b44reg_len = pci_resource_len(pdev, 0); dev = alloc_etherdev(sizeof(*bp)); if (!dev) { - dev_err(&pdev->dev, "Etherdev alloc failed, aborting.\n"); + dev_err(sdev->dev, "Etherdev alloc failed, aborting.\n"); err = -ENOMEM; - goto err_out_free_res; + goto out; } - SET_MODULE_OWNER(dev); - SET_NETDEV_DEV(dev,&pdev->dev); + SET_NETDEV_DEV(dev, sdev->dev); /* No interesting netdevice features in this card... */ dev->features |= 0; bp = netdev_priv(dev); - bp->pdev = pdev; + bp->sdev = sdev; bp->dev = dev; + bp->force_copybreak = 0; bp->msg_enable = netif_msg_init(b44_debug, B44_DEF_MSG_ENABLE); spin_lock_init(&bp->lock); - bp->regs = ioremap(b44reg_base, b44reg_len); - if (bp->regs == 0UL) { - dev_err(&pdev->dev, "Cannot map device registers, aborting.\n"); - err = -ENOMEM; - goto err_out_free_dev; - } - bp->rx_pending = B44_DEF_RX_RING_PENDING; bp->tx_pending = B44_DEF_TX_RING_PENDING; - dev->open = b44_open; - dev->stop = b44_close; - dev->hard_start_xmit = b44_start_xmit; - dev->get_stats = b44_get_stats; - dev->set_multicast_list = b44_set_rx_mode; - dev->set_mac_address = b44_set_mac_addr; - dev->do_ioctl = b44_ioctl; - dev->tx_timeout = b44_tx_timeout; - dev->poll = b44_poll; - dev->weight = 64; + dev->netdev_ops = &b44_netdev_ops; + netif_napi_add(dev, &bp->napi, b44_poll, 64); dev->watchdog_timeo = B44_TX_TIMEOUT; -#ifdef CONFIG_NET_POLL_CONTROLLER - dev->poll_controller = b44_poll_controller; -#endif - dev->change_mtu = b44_change_mtu; - dev->irq = pdev->irq; + dev->irq = sdev->irq; SET_ETHTOOL_OPS(dev, &b44_ethtool_ops); netif_carrier_off(dev); + err = ssb_bus_powerup(sdev->bus, 0); + if (err) { + dev_err(sdev->dev, + "Failed to powerup the bus\n"); + goto err_out_free_dev; + } + err = ssb_dma_set_mask(sdev, DMA_BIT_MASK(30)); + if (err) { + dev_err(sdev->dev, + "Required 30BIT DMA mask unsupported by the system.\n"); + goto err_out_powerdown; + } err = b44_get_invariants(bp); if (err) { - dev_err(&pdev->dev, + dev_err(sdev->dev, "Problem fetching invariants of chip, aborting.\n"); - goto err_out_iounmap; + goto err_out_powerdown; } bp->mii_if.dev = dev; @@ -2231,61 +2213,51 @@ static int __devinit b44_init_one(struct pci_dev *pdev, err = register_netdev(dev); if (err) { - dev_err(&pdev->dev, "Cannot register net device, aborting.\n"); - goto err_out_iounmap; + dev_err(sdev->dev, "Cannot register net device, aborting.\n"); + goto err_out_powerdown; } - pci_set_drvdata(pdev, dev); - - pci_save_state(bp->pdev); + ssb_set_drvdata(sdev, dev); /* Chip reset provides power to the b44 MAC & PCI cores, which * is necessary for MAC register access. */ - b44_chip_reset(bp); + b44_chip_reset(bp, B44_CHIP_RESET_FULL); - printk(KERN_INFO "%s: Broadcom 4400 10/100BaseT Ethernet ", dev->name); - for (i = 0; i < 6; i++) - printk("%2.2x%c", dev->dev_addr[i], - i == 5 ? '\n' : ':'); + printk(KERN_INFO "%s: Broadcom 44xx/47xx 10/100BaseT Ethernet %pM\n", + dev->name, dev->dev_addr); return 0; -err_out_iounmap: - iounmap(bp->regs); +err_out_powerdown: + ssb_bus_may_powerdown(sdev->bus); err_out_free_dev: free_netdev(dev); -err_out_free_res: - pci_release_regions(pdev); - -err_out_disable_pdev: - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); +out: return err; } -static void __devexit b44_remove_one(struct pci_dev *pdev) +static void __devexit b44_remove_one(struct ssb_device *sdev) { - struct net_device *dev = pci_get_drvdata(pdev); - struct b44 *bp = netdev_priv(dev); + struct net_device *dev = ssb_get_drvdata(sdev); unregister_netdev(dev); - iounmap(bp->regs); + ssb_device_disable(sdev, 0); + ssb_bus_may_powerdown(sdev->bus); free_netdev(dev); - pci_release_regions(pdev); - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); + ssb_pcihost_set_power_state(sdev, PCI_D3hot); + ssb_set_drvdata(sdev, NULL); } -static int b44_suspend(struct pci_dev *pdev, pm_message_t state) +static int b44_suspend(struct ssb_device *sdev, pm_message_t state) { - struct net_device *dev = pci_get_drvdata(pdev); + struct net_device *dev = ssb_get_drvdata(sdev); struct b44 *bp = netdev_priv(dev); - if (!netif_running(dev)) - return 0; + if (!netif_running(dev)) + return 0; del_timer_sync(&bp->timer); @@ -2300,66 +2272,98 @@ static int b44_suspend(struct pci_dev *pdev, pm_message_t state) free_irq(dev->irq, dev); if (bp->flags & B44_FLAG_WOL_ENABLE) { - b44_init_hw(bp, 0); + b44_init_hw(bp, B44_PARTIAL_RESET); b44_setup_wol(bp); } - pci_disable_device(pdev); + + ssb_pcihost_set_power_state(sdev, PCI_D3hot); return 0; } -static int b44_resume(struct pci_dev *pdev) +static int b44_resume(struct ssb_device *sdev) { - struct net_device *dev = pci_get_drvdata(pdev); + struct net_device *dev = ssb_get_drvdata(sdev); struct b44 *bp = netdev_priv(dev); + int rc = 0; - pci_restore_state(pdev); - pci_enable_device(pdev); - pci_set_master(pdev); + rc = ssb_bus_powerup(sdev->bus, 0); + if (rc) { + dev_err(sdev->dev, + "Failed to powerup the bus\n"); + return rc; + } if (!netif_running(dev)) return 0; - if (request_irq(dev->irq, b44_interrupt, IRQF_SHARED, dev->name, dev)) + rc = request_irq(dev->irq, b44_interrupt, IRQF_SHARED, dev->name, dev); + if (rc) { printk(KERN_ERR PFX "%s: request_irq failed\n", dev->name); + return rc; + } spin_lock_irq(&bp->lock); b44_init_rings(bp); - b44_init_hw(bp, 1); + b44_init_hw(bp, B44_FULL_RESET); netif_device_attach(bp->dev); spin_unlock_irq(&bp->lock); - bp->timer.expires = jiffies + HZ; - add_timer(&bp->timer); - b44_enable_ints(bp); netif_wake_queue(dev); + + mod_timer(&bp->timer, jiffies + 1); + return 0; } -static struct pci_driver b44_driver = { +static struct ssb_driver b44_ssb_driver = { .name = DRV_MODULE_NAME, - .id_table = b44_pci_tbl, + .id_table = b44_ssb_tbl, .probe = b44_init_one, .remove = __devexit_p(b44_remove_one), - .suspend = b44_suspend, - .resume = b44_resume, + .suspend = b44_suspend, + .resume = b44_resume, }; +static inline int b44_pci_init(void) +{ + int err = 0; +#ifdef CONFIG_B44_PCI + err = ssb_pcihost_register(&b44_pci_driver); +#endif + return err; +} + +static inline void b44_pci_exit(void) +{ +#ifdef CONFIG_B44_PCI + ssb_pcihost_unregister(&b44_pci_driver); +#endif +} + static int __init b44_init(void) { unsigned int dma_desc_align_size = dma_get_cache_alignment(); + int err; /* Setup paramaters for syncing RX/TX DMA descriptors */ dma_desc_align_mask = ~(dma_desc_align_size - 1); dma_desc_sync_size = max_t(unsigned int, dma_desc_align_size, sizeof(struct dma_desc)); - return pci_register_driver(&b44_driver); + err = b44_pci_init(); + if (err) + return err; + err = ssb_driver_register(&b44_ssb_driver); + if (err) + b44_pci_exit(); + return err; } static void __exit b44_cleanup(void) { - pci_unregister_driver(&b44_driver); + ssb_driver_unregister(&b44_ssb_driver); + b44_pci_exit(); } module_init(b44_init);