diff options
Diffstat (limited to 'drivers/net/ethernet/sun/cassini.c')
| -rw-r--r-- | drivers/net/ethernet/sun/cassini.c | 462 |
1 files changed, 190 insertions, 272 deletions
diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c index 759441b29e53..acfb523214b9 100644 --- a/drivers/net/ethernet/sun/cassini.c +++ b/drivers/net/ethernet/sun/cassini.c @@ -1,23 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* cassini.c: Sun Microsystems Cassini(+) ethernet driver. * * Copyright (C) 2004 Sun Microsystems Inc. * Copyright (C) 2003 Adrian Sun (asun@darksunrising.com) * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - * 02111-1307, USA. - * * This driver uses the sungem driver (c) David Miller * (davem@redhat.com) as its basis. * @@ -43,7 +29,7 @@ * -- on page reclamation, the driver swaps the page with a spare page. * if that page is still in use, it frees its reference to that page, * and allocates a new page for use. otherwise, it just recycles the - * the page. + * page. * * NOTE: cassini can parse the header. however, it's not worth it * as long as the network stack requires a header copy. @@ -87,6 +73,7 @@ #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> +#include <linux/skbuff_ref.h> #include <linux/ethtool.h> #include <linux/crc32.h> #include <linux/random.h> @@ -101,10 +88,9 @@ #include <linux/atomic.h> #include <asm/io.h> #include <asm/byteorder.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> +#include <linux/jiffies.h> -#define cas_page_map(x) kmap_atomic((x)) -#define cas_page_unmap(x) kunmap_atomic((x)) #define CAS_NCPUS num_online_cpus() #define cas_skb_release(x) netif_rx(x) @@ -191,7 +177,7 @@ static char version[] = static int cassini_debug = -1; /* -1 == use CAS_DEF_MSG_ENABLE as value */ static int link_mode; -MODULE_AUTHOR("Adrian Sun (asun@darksunrising.com)"); +MODULE_AUTHOR("Adrian Sun <asun@darksunrising.com>"); MODULE_DESCRIPTION("Sun Cassini(+) ethernet driver"); MODULE_LICENSE("GPL"); MODULE_FIRMWARE("sun/cassini.bin"); @@ -231,7 +217,7 @@ static u16 link_modes[] = { CAS_BMCR_SPEED1000|BMCR_FULLDPLX /* 5 : 1000bt full duplex */ }; -static DEFINE_PCI_DEVICE_TABLE(cas_pci_tbl) = { +static const struct pci_device_id cas_pci_tbl[] = { { PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_CASSINI, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SATURN, @@ -248,13 +234,7 @@ static inline void cas_lock_tx(struct cas *cp) int i; for (i = 0; i < N_TX_RINGS; i++) - spin_lock(&cp->tx_lock[i]); -} - -static inline void cas_lock_all(struct cas *cp) -{ - spin_lock_irq(&cp->lock); - cas_lock_tx(cp); + spin_lock_nested(&cp->tx_lock[i], i); } /* WTZ: QA was finding deadlock problems with the previous @@ -280,12 +260,6 @@ static inline void cas_unlock_tx(struct cas *cp) spin_unlock(&cp->tx_lock[i - 1]); } -static inline void cas_unlock_all(struct cas *cp) -{ - cas_unlock_tx(cp); - spin_unlock_irq(&cp->lock); -} - #define cas_unlock_all_restore(cp, flags) \ do { \ struct cas *xxxcp = (cp); \ @@ -469,8 +443,8 @@ static void cas_phy_powerdown(struct cas *cp) /* cp->lock held. note: the last put_page will free the buffer */ static int cas_page_free(struct cas *cp, cas_page_t *page) { - pci_unmap_page(cp->pdev, page->dma_addr, cp->page_size, - PCI_DMA_FROMDEVICE); + dma_unmap_page(&cp->pdev->dev, page->dma_addr, cp->page_size, + DMA_FROM_DEVICE); __free_pages(page->buffer, cp->page_order); kfree(page); return 0; @@ -480,8 +454,8 @@ static int cas_page_free(struct cas *cp, cas_page_t *page) #define RX_USED_ADD(x, y) ((x)->used += (y)) #define RX_USED_SET(x, y) ((x)->used = (y)) #else -#define RX_USED_ADD(x, y) -#define RX_USED_SET(x, y) +#define RX_USED_ADD(x, y) do { } while(0) +#define RX_USED_SET(x, y) do { } while(0) #endif /* local page allocation routines for the receive buffers. jumbo pages @@ -500,8 +474,8 @@ static cas_page_t *cas_page_alloc(struct cas *cp, const gfp_t flags) page->buffer = alloc_pages(flags, cp->page_order); if (!page->buffer) goto page_err; - page->dma_addr = pci_map_page(cp->pdev, page->buffer, 0, - cp->page_size, PCI_DMA_FROMDEVICE); + page->dma_addr = dma_map_page(&cp->pdev->dev, page->buffer, 0, + cp->page_size, DMA_FROM_DEVICE); return page; page_err: @@ -512,7 +486,7 @@ page_err: /* initialize spare pool of rx buffers, but allocate during the open */ static void cas_spare_init(struct cas *cp) { - spin_lock(&cp->rx_inuse_lock); + spin_lock(&cp->rx_inuse_lock); INIT_LIST_HEAD(&cp->rx_inuse_list); spin_unlock(&cp->rx_inuse_lock); @@ -693,7 +667,8 @@ static void cas_mif_poll(struct cas *cp, const int enable) } /* Must be invoked under cp->lock */ -static void cas_begin_auto_negotiation(struct cas *cp, struct ethtool_cmd *ep) +static void cas_begin_auto_negotiation(struct cas *cp, + const struct ethtool_link_ksettings *ep) { u16 ctl; #if 1 @@ -706,16 +681,16 @@ static void cas_begin_auto_negotiation(struct cas *cp, struct ethtool_cmd *ep) if (!ep) goto start_aneg; lcntl = cp->link_cntl; - if (ep->autoneg == AUTONEG_ENABLE) + if (ep->base.autoneg == AUTONEG_ENABLE) { cp->link_cntl = BMCR_ANENABLE; - else { - u32 speed = ethtool_cmd_speed(ep); + } else { + u32 speed = ep->base.speed; cp->link_cntl = 0; if (speed == SPEED_100) cp->link_cntl |= BMCR_SPEED100; else if (speed == SPEED_1000) cp->link_cntl |= CAS_BMCR_SPEED1000; - if (ep->duplex == DUPLEX_FULL) + if (ep->base.duplex == DUPLEX_FULL) cp->link_cntl |= BMCR_FULLDPLX; } #if 1 @@ -1259,19 +1234,6 @@ static void cas_init_rx_dma(struct cas *cp) */ readl(cp->regs + REG_INTR_STATUS_ALIAS); writel(INTR_RX_DONE | INTR_RX_BUF_UNAVAIL, cp->regs + REG_ALIAS_CLEAR); - if (cp->cas_flags & CAS_FLAG_REG_PLUS) { - for (i = 1; i < N_RX_COMP_RINGS; i++) - readl(cp->regs + REG_PLUS_INTRN_STATUS_ALIAS(i)); - - /* 2 is different from 3 and 4 */ - if (N_RX_COMP_RINGS > 1) - writel(INTR_RX_DONE_ALT | INTR_RX_BUF_UNAVAIL_1, - cp->regs + REG_PLUS_ALIASN_CLEAR(1)); - - for (i = 2; i < N_RX_COMP_RINGS; i++) - writel(INTR_RX_DONE_ALT, - cp->regs + REG_PLUS_ALIASN_CLEAR(i)); - } /* set up pause thresholds */ val = CAS_BASE(RX_PAUSE_THRESH_OFF, @@ -1350,7 +1312,7 @@ static void cas_init_rx_dma(struct cas *cp) writel(val, cp->regs + REG_RX_PAGE_SIZE); /* enable the header parser if desired */ - if (CAS_HP_FIRMWARE == cas_prog_null) + if (&CAS_HP_FIRMWARE[0] == &cas_prog_null[0]) return; val = CAS_BASE(HP_CFG_NUM_CPU, CAS_NCPUS > 63 ? 0 : CAS_NCPUS); @@ -1624,6 +1586,7 @@ static inline int cas_mdio_link_not_up(struct cas *cp) cas_phy_write(cp, MII_BMCR, val); break; } + break; default: break; } @@ -1729,34 +1692,26 @@ static int cas_pci_interrupt(struct net_device *dev, struct cas *cp, pr_cont("\n"); if (stat & PCI_ERR_OTHER) { - u16 cfg; + int pci_errs; /* Interrogate PCI config space for the * true cause. */ - pci_read_config_word(cp->pdev, PCI_STATUS, &cfg); - netdev_err(dev, "Read PCI cfg space status [%04x]\n", cfg); - if (cfg & PCI_STATUS_PARITY) + pci_errs = pci_status_get_and_clear_errors(cp->pdev); + + netdev_err(dev, "PCI status errors[%04x]\n", pci_errs); + if (pci_errs & PCI_STATUS_PARITY) netdev_err(dev, "PCI parity error detected\n"); - if (cfg & PCI_STATUS_SIG_TARGET_ABORT) + if (pci_errs & PCI_STATUS_SIG_TARGET_ABORT) netdev_err(dev, "PCI target abort\n"); - if (cfg & PCI_STATUS_REC_TARGET_ABORT) + if (pci_errs & PCI_STATUS_REC_TARGET_ABORT) netdev_err(dev, "PCI master acks target abort\n"); - if (cfg & PCI_STATUS_REC_MASTER_ABORT) + if (pci_errs & PCI_STATUS_REC_MASTER_ABORT) netdev_err(dev, "PCI master abort\n"); - if (cfg & PCI_STATUS_SIG_SYSTEM_ERROR) + if (pci_errs & PCI_STATUS_SIG_SYSTEM_ERROR) netdev_err(dev, "PCI system error SERR#\n"); - if (cfg & PCI_STATUS_DETECTED_PARITY) + if (pci_errs & PCI_STATUS_DETECTED_PARITY) netdev_err(dev, "PCI parity error\n"); - - /* Write the error bits back to clear them. */ - cfg &= (PCI_STATUS_PARITY | - PCI_STATUS_SIG_TARGET_ABORT | - PCI_STATUS_REC_TARGET_ABORT | - PCI_STATUS_REC_MASTER_ABORT | - PCI_STATUS_SIG_SYSTEM_ERROR | - PCI_STATUS_DETECTED_PARITY); - pci_write_config_word(cp->pdev, PCI_STATUS, cfg); } /* For all PCI errors, we should reset the chip. */ @@ -1896,8 +1851,8 @@ static inline void cas_tx_ringN(struct cas *cp, int ring, int limit) daddr = le64_to_cpu(txd->buffer); dlen = CAS_VAL(TX_DESC_BUFLEN, le64_to_cpu(txd->control)); - pci_unmap_page(cp->pdev, daddr, dlen, - PCI_DMA_TODEVICE); + dma_unmap_page(&cp->pdev->dev, daddr, dlen, + DMA_TO_DEVICE); entry = TX_DESC_NEXT(ring, entry); /* tiny buffer may follow */ @@ -1911,7 +1866,7 @@ static inline void cas_tx_ringN(struct cas *cp, int ring, int limit) cp->net_stats[ring].tx_packets++; cp->net_stats[ring].tx_bytes += skb->len; spin_unlock(&cp->stat_lock[ring]); - dev_kfree_skb_irq(skb); + dev_consume_skb_irq(skb); } cp->tx_old[ring] = entry; @@ -1959,7 +1914,7 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc, int off, swivel = RX_SWIVEL_OFF_VAL; struct cas_page *page; struct sk_buff *skb; - void *addr, *crcaddr; + void *crcaddr; __sum16 csum; char *p; @@ -1980,7 +1935,7 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc, skb_reserve(skb, swivel); p = skb->data; - addr = crcaddr = NULL; + crcaddr = NULL; if (hlen) { /* always copy header pages */ i = CAS_VAL(RX_COMP2_HDR_INDEX, words[1]); page = cp->rx_pages[CAS_VAL(RX_INDEX_RING, i)][CAS_VAL(RX_INDEX_NUM, i)]; @@ -1990,13 +1945,12 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc, i = hlen; if (!dlen) /* attach FCS */ i += cp->crc_size; - pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr + off, i, - PCI_DMA_FROMDEVICE); - addr = cas_page_map(page->buffer); - memcpy(p, addr + off, i); - pci_dma_sync_single_for_device(cp->pdev, page->dma_addr + off, i, - PCI_DMA_FROMDEVICE); - cas_page_unmap(addr); + dma_sync_single_for_cpu(&cp->pdev->dev, page->dma_addr + off, + i, DMA_FROM_DEVICE); + memcpy(p, page_address(page->buffer) + off, i); + dma_sync_single_for_device(&cp->pdev->dev, + page->dma_addr + off, i, + DMA_FROM_DEVICE); RX_USED_ADD(page, 0x100); p += hlen; swivel = 0; @@ -2021,17 +1975,17 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc, i = hlen; if (i == dlen) /* attach FCS */ i += cp->crc_size; - pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr + off, i, - PCI_DMA_FROMDEVICE); + dma_sync_single_for_cpu(&cp->pdev->dev, page->dma_addr + off, + i, DMA_FROM_DEVICE); /* make sure we always copy a header */ swivel = 0; if (p == (char *) skb->data) { /* not split */ - addr = cas_page_map(page->buffer); - memcpy(p, addr + off, RX_COPY_MIN); - pci_dma_sync_single_for_device(cp->pdev, page->dma_addr + off, i, - PCI_DMA_FROMDEVICE); - cas_page_unmap(addr); + memcpy(p, page_address(page->buffer) + off, + RX_COPY_MIN); + dma_sync_single_for_device(&cp->pdev->dev, + page->dma_addr + off, i, + DMA_FROM_DEVICE); off += RX_COPY_MIN; swivel = RX_COPY_MIN; RX_USED_ADD(page, cp->mtu_stride); @@ -2045,10 +1999,8 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc, skb->truesize += hlen - swivel; skb->len += hlen - swivel; - __skb_frag_set_page(frag, page->buffer); + skb_frag_fill_page_desc(frag, page->buffer, off, hlen - swivel); __skb_frag_ref(frag); - frag->page_offset = off; - skb_frag_size_set(frag, hlen - swivel); /* any more data? */ if ((words[0] & RX_COMP1_SPLIT_PKT) && ((dlen -= hlen) > 0)) { @@ -2057,29 +2009,27 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc, i = CAS_VAL(RX_COMP2_NEXT_INDEX, words[1]); page = cp->rx_pages[CAS_VAL(RX_INDEX_RING, i)][CAS_VAL(RX_INDEX_NUM, i)]; - pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr, - hlen + cp->crc_size, - PCI_DMA_FROMDEVICE); - pci_dma_sync_single_for_device(cp->pdev, page->dma_addr, - hlen + cp->crc_size, - PCI_DMA_FROMDEVICE); + dma_sync_single_for_cpu(&cp->pdev->dev, + page->dma_addr, + hlen + cp->crc_size, + DMA_FROM_DEVICE); + dma_sync_single_for_device(&cp->pdev->dev, + page->dma_addr, + hlen + cp->crc_size, + DMA_FROM_DEVICE); skb_shinfo(skb)->nr_frags++; skb->data_len += hlen; skb->len += hlen; frag++; - __skb_frag_set_page(frag, page->buffer); + skb_frag_fill_page_desc(frag, page->buffer, 0, hlen); __skb_frag_ref(frag); - frag->page_offset = 0; - skb_frag_size_set(frag, hlen); RX_USED_ADD(page, hlen + cp->crc_size); } - if (cp->crc_size) { - addr = cas_page_map(page->buffer); - crcaddr = addr + off + hlen; - } + if (cp->crc_size) + crcaddr = page_address(page->buffer) + off + hlen; } else { /* copying packet */ @@ -2099,13 +2049,12 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc, i = hlen; if (i == dlen) /* attach FCS */ i += cp->crc_size; - pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr + off, i, - PCI_DMA_FROMDEVICE); - addr = cas_page_map(page->buffer); - memcpy(p, addr + off, i); - pci_dma_sync_single_for_device(cp->pdev, page->dma_addr + off, i, - PCI_DMA_FROMDEVICE); - cas_page_unmap(addr); + dma_sync_single_for_cpu(&cp->pdev->dev, page->dma_addr + off, + i, DMA_FROM_DEVICE); + memcpy(p, page_address(page->buffer) + off, i); + dma_sync_single_for_device(&cp->pdev->dev, + page->dma_addr + off, i, + DMA_FROM_DEVICE); if (p == (char *) skb->data) /* not split */ RX_USED_ADD(page, cp->mtu_stride); else @@ -2116,22 +2065,21 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc, p += hlen; i = CAS_VAL(RX_COMP2_NEXT_INDEX, words[1]); page = cp->rx_pages[CAS_VAL(RX_INDEX_RING, i)][CAS_VAL(RX_INDEX_NUM, i)]; - pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr, - dlen + cp->crc_size, - PCI_DMA_FROMDEVICE); - addr = cas_page_map(page->buffer); - memcpy(p, addr, dlen + cp->crc_size); - pci_dma_sync_single_for_device(cp->pdev, page->dma_addr, - dlen + cp->crc_size, - PCI_DMA_FROMDEVICE); - cas_page_unmap(addr); + dma_sync_single_for_cpu(&cp->pdev->dev, + page->dma_addr, + dlen + cp->crc_size, + DMA_FROM_DEVICE); + memcpy(p, page_address(page->buffer), dlen + cp->crc_size); + dma_sync_single_for_device(&cp->pdev->dev, + page->dma_addr, + dlen + cp->crc_size, + DMA_FROM_DEVICE); RX_USED_ADD(page, dlen + cp->crc_size); } end_copy_pkt: - if (cp->crc_size) { - addr = NULL; + if (cp->crc_size) crcaddr = skb->data + alloclen; - } + skb_put(skb, alloclen); } @@ -2140,8 +2088,6 @@ end_copy_pkt: /* checksum includes FCS. strip it out. */ csum = csum_fold(csum_partial(crcaddr, cp->crc_size, csum_unfold(csum))); - if (addr) - cas_page_unmap(addr); } skb->protocol = eth_type_trans(skb, cp->dev); if (skb->protocol == htons(ETH_P_IP)) { @@ -2304,7 +2250,7 @@ static int cas_rx_ringN(struct cas *cp, int ring, int budget) drops = 0; while (1) { struct cas_rx_comp *rxc = rxcs + entry; - struct sk_buff *uninitialized_var(skb); + struct sk_buff *skb; int type, len; u64 words[4]; int i, dring; @@ -2679,7 +2625,7 @@ static void cas_netpoll(struct net_device *dev) } #endif -static void cas_tx_timeout(struct net_device *dev) +static void cas_tx_timeout(struct net_device *dev, unsigned int txqueue) { struct cas *cp = netdev_priv(dev); @@ -2799,9 +2745,8 @@ static inline int cas_xmit_tx_ringN(struct cas *cp, int ring, nr_frags = skb_shinfo(skb)->nr_frags; len = skb_headlen(skb); - mapping = pci_map_page(cp->pdev, virt_to_page(skb->data), - offset_in_page(skb->data), len, - PCI_DMA_TODEVICE); + mapping = dma_map_page(&cp->pdev->dev, virt_to_page(skb->data), + offset_in_page(skb->data), len, DMA_TO_DEVICE); tentry = entry; tabort = cas_calc_tabort(cp, (unsigned long) skb->data, len); @@ -2829,20 +2774,16 @@ static inline int cas_xmit_tx_ringN(struct cas *cp, int ring, mapping = skb_frag_dma_map(&cp->pdev->dev, fragp, 0, len, DMA_TO_DEVICE); - tabort = cas_calc_tabort(cp, fragp->page_offset, len); + tabort = cas_calc_tabort(cp, skb_frag_off(fragp), len); if (unlikely(tabort)) { - void *addr; - /* NOTE: len is always > tabort */ cas_write_txd(cp, ring, entry, mapping, len - tabort, ctrl, 0); entry = TX_DESC_NEXT(ring, entry); - - addr = cas_page_map(skb_frag_page(fragp)); - memcpy(tx_tiny_buf(cp, ring, entry), - addr + fragp->page_offset + len - tabort, - tabort); - cas_page_unmap(addr); + memcpy_from_page(tx_tiny_buf(cp, ring, entry), + skb_frag_page(fragp), + skb_frag_off(fragp) + len - tabort, + tabort); mapping = tx_tiny_map(cp, ring, entry, tentry); len = tabort; } @@ -3053,14 +2994,13 @@ static void cas_mac_reset(struct cas *cp) /* Must be invoked under cp->lock. */ static void cas_init_mac(struct cas *cp) { - unsigned char *e = &cp->dev->dev_addr[0]; + const unsigned char *e = &cp->dev->dev_addr[0]; int i; cas_mac_reset(cp); /* setup core arbitration weight register */ writel(CAWR_RR_DIS, cp->regs + REG_CAWR); - /* XXX Use pci_dma_burst_advice() */ #if !defined(CONFIG_SPARC64) && !defined(CONFIG_ALPHA) /* set the infinite burst register for chips that don't have * pci issues. @@ -3354,7 +3294,7 @@ use_random_mac_addr: #if defined(CONFIG_SPARC) addr = of_get_property(cp->of_node, "local-mac-address", NULL); if (addr != NULL) { - memcpy(dev_addr, addr, 6); + memcpy(dev_addr, addr, ETH_ALEN); goto done; } #endif @@ -3406,6 +3346,7 @@ static void cas_check_pci_invariants(struct cas *cp) static int cas_check_invariants(struct cas *cp) { struct pci_dev *pdev = cp->pdev; + u8 addr[ETH_ALEN]; u32 cfg; int i; @@ -3434,8 +3375,8 @@ static int cas_check_invariants(struct cas *cp) /* finish phy determination. MDIO1 takes precedence over MDIO0 if * they're both connected. */ - cp->phy_type = cas_get_vpd_info(cp, cp->dev->dev_addr, - PCI_SLOT(pdev->devfn)); + cp->phy_type = cas_get_vpd_info(cp, addr, PCI_SLOT(pdev->devfn)); + eth_hw_addr_set(cp->dev, addr); if (cp->phy_type & CAS_PHY_SERDES) { cp->cas_flags |= CAS_FLAG_1000MB_CAP; return 0; /* no more checking needed */ @@ -3534,9 +3475,6 @@ enable_rx_done: if (N_RX_DESC_RINGS > 1) writel(RX_DESC_RINGN_SIZE(1) - 4, cp->regs + REG_PLUS_RX_KICK1); - - for (i = 1; i < N_RX_COMP_RINGS; i++) - writel(0, cp->regs + REG_PLUS_RX_COMPN_TAIL(i)); } } @@ -3821,7 +3759,7 @@ static void cas_reset(struct cas *cp, int blkflag) /* program header parser */ if ((cp->cas_flags & CAS_FLAG_TARGET_ABORT) || - (CAS_HP_ALT_FIRMWARE == cas_prog_null)) { + (&CAS_HP_ALT_FIRMWARE[0] == &cas_prog_null[0])) { cas_load_firmware(cp, CAS_HP_FIRMWARE); } else { cas_load_firmware(cp, CAS_HP_ALT_FIRMWARE); @@ -3841,7 +3779,7 @@ static void cas_shutdown(struct cas *cp) /* Make us not-running to avoid timers respawning */ cp->hw_running = 0; - del_timer_sync(&cp->link_timer); + timer_delete_sync(&cp->link_timer); /* Stop the reset task */ #if 0 @@ -3866,10 +3804,7 @@ static int cas_change_mtu(struct net_device *dev, int new_mtu) { struct cas *cp = netdev_priv(dev); - if (new_mtu < CAS_MIN_MTU || new_mtu > CAS_MAX_MTU) - return -EINVAL; - - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (!netif_running(dev) || !netif_device_present(dev)) return 0; @@ -3919,8 +3854,8 @@ static void cas_clean_txd(struct cas *cp, int ring) daddr = le64_to_cpu(txd[ent].buffer); dlen = CAS_VAL(TX_DESC_BUFLEN, le64_to_cpu(txd[ent].control)); - pci_unmap_page(cp->pdev, daddr, dlen, - PCI_DMA_TODEVICE); + dma_unmap_page(&cp->pdev->dev, daddr, dlen, + DMA_TO_DEVICE); if (frag != skb_shinfo(skb)->nr_frags) { i++; @@ -4084,16 +4019,16 @@ done: #endif } -static void cas_link_timer(unsigned long data) +static void cas_link_timer(struct timer_list *t) { - struct cas *cp = (struct cas *) data; + struct cas *cp = timer_container_of(cp, t, link_timer); int mask, pending = 0, reset = 0; unsigned long flags; if (link_transition_timeout != 0 && cp->link_transition_jiffies_valid && - ((jiffies - cp->link_transition_jiffies) > - (link_transition_timeout))) { + time_is_before_jiffies(cp->link_transition_jiffies + + link_transition_timeout)) { /* One-second counter so link-down workaround doesn't * cause resets to occur so fast as to fool the switch * into thinking the link is down. @@ -4218,9 +4153,8 @@ static void cas_tx_tiny_free(struct cas *cp) if (!cp->tx_tiny_bufs[i]) continue; - pci_free_consistent(pdev, TX_TINY_BUF_BLOCK, - cp->tx_tiny_bufs[i], - cp->tx_tiny_dvma[i]); + dma_free_coherent(&pdev->dev, TX_TINY_BUF_BLOCK, + cp->tx_tiny_bufs[i], cp->tx_tiny_dvma[i]); cp->tx_tiny_bufs[i] = NULL; } } @@ -4232,8 +4166,8 @@ static int cas_tx_tiny_alloc(struct cas *cp) for (i = 0; i < N_TX_RINGS; i++) { cp->tx_tiny_bufs[i] = - pci_alloc_consistent(pdev, TX_TINY_BUF_BLOCK, - &cp->tx_tiny_dvma[i]); + dma_alloc_coherent(&pdev->dev, TX_TINY_BUF_BLOCK, + &cp->tx_tiny_dvma[i], GFP_KERNEL); if (!cp->tx_tiny_bufs[i]) { cas_tx_tiny_free(cp); return -1; @@ -4529,27 +4463,26 @@ static void cas_set_multicast(struct net_device *dev) static void cas_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { struct cas *cp = netdev_priv(dev); - strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver)); - strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version)); - strlcpy(info->bus_info, pci_name(cp->pdev), sizeof(info->bus_info)); - info->regdump_len = cp->casreg_len < CAS_MAX_REGS ? - cp->casreg_len : CAS_MAX_REGS; - info->n_stats = CAS_NUM_STAT_KEYS; + strscpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver)); + strscpy(info->version, DRV_MODULE_VERSION, sizeof(info->version)); + strscpy(info->bus_info, pci_name(cp->pdev), sizeof(info->bus_info)); } -static int cas_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +static int cas_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) { struct cas *cp = netdev_priv(dev); u16 bmcr; int full_duplex, speed, pause; unsigned long flags; enum link_state linkstate = link_up; + u32 supported, advertising; - cmd->advertising = 0; - cmd->supported = SUPPORTED_Autoneg; + advertising = 0; + supported = SUPPORTED_Autoneg; if (cp->cas_flags & CAS_FLAG_1000MB_CAP) { - cmd->supported |= SUPPORTED_1000baseT_Full; - cmd->advertising |= ADVERTISED_1000baseT_Full; + supported |= SUPPORTED_1000baseT_Full; + advertising |= ADVERTISED_1000baseT_Full; } /* Record PHY settings if HW is on. */ @@ -4557,17 +4490,15 @@ static int cas_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) bmcr = 0; linkstate = cp->lstate; if (CAS_PHY_MII(cp->phy_type)) { - cmd->port = PORT_MII; - cmd->transceiver = (cp->cas_flags & CAS_FLAG_SATURN) ? - XCVR_INTERNAL : XCVR_EXTERNAL; - cmd->phy_address = cp->phy_addr; - cmd->advertising |= ADVERTISED_TP | ADVERTISED_MII | + cmd->base.port = PORT_MII; + cmd->base.phy_address = cp->phy_addr; + advertising |= ADVERTISED_TP | ADVERTISED_MII | ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full; - cmd->supported |= + supported |= (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | @@ -4583,11 +4514,10 @@ static int cas_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) } } else { - cmd->port = PORT_FIBRE; - cmd->transceiver = XCVR_INTERNAL; - cmd->phy_address = 0; - cmd->supported |= SUPPORTED_FIBRE; - cmd->advertising |= ADVERTISED_FIBRE; + cmd->base.port = PORT_FIBRE; + cmd->base.phy_address = 0; + supported |= SUPPORTED_FIBRE; + advertising |= ADVERTISED_FIBRE; if (cp->hw_running) { /* pcs uses the same bits as mii */ @@ -4599,21 +4529,20 @@ static int cas_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) spin_unlock_irqrestore(&cp->lock, flags); if (bmcr & BMCR_ANENABLE) { - cmd->advertising |= ADVERTISED_Autoneg; - cmd->autoneg = AUTONEG_ENABLE; - ethtool_cmd_speed_set(cmd, ((speed == 10) ? + advertising |= ADVERTISED_Autoneg; + cmd->base.autoneg = AUTONEG_ENABLE; + cmd->base.speed = ((speed == 10) ? SPEED_10 : ((speed == 1000) ? - SPEED_1000 : SPEED_100))); - cmd->duplex = full_duplex ? DUPLEX_FULL : DUPLEX_HALF; + SPEED_1000 : SPEED_100)); + cmd->base.duplex = full_duplex ? DUPLEX_FULL : DUPLEX_HALF; } else { - cmd->autoneg = AUTONEG_DISABLE; - ethtool_cmd_speed_set(cmd, ((bmcr & CAS_BMCR_SPEED1000) ? + cmd->base.autoneg = AUTONEG_DISABLE; + cmd->base.speed = ((bmcr & CAS_BMCR_SPEED1000) ? SPEED_1000 : ((bmcr & BMCR_SPEED100) ? - SPEED_100 : SPEED_10))); - cmd->duplex = - (bmcr & BMCR_FULLDPLX) ? + SPEED_100 : SPEED_10)); + cmd->base.duplex = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF; } if (linkstate != link_up) { @@ -4628,39 +4557,46 @@ static int cas_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) * settings that we configured. */ if (cp->link_cntl & BMCR_ANENABLE) { - ethtool_cmd_speed_set(cmd, 0); - cmd->duplex = 0xff; + cmd->base.speed = 0; + cmd->base.duplex = 0xff; } else { - ethtool_cmd_speed_set(cmd, SPEED_10); + cmd->base.speed = SPEED_10; if (cp->link_cntl & BMCR_SPEED100) { - ethtool_cmd_speed_set(cmd, SPEED_100); + cmd->base.speed = SPEED_100; } else if (cp->link_cntl & CAS_BMCR_SPEED1000) { - ethtool_cmd_speed_set(cmd, SPEED_1000); + cmd->base.speed = SPEED_1000; } - cmd->duplex = (cp->link_cntl & BMCR_FULLDPLX)? + cmd->base.duplex = (cp->link_cntl & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF; } } + + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, + supported); + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, + advertising); + return 0; } -static int cas_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +static int cas_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *cmd) { struct cas *cp = netdev_priv(dev); unsigned long flags; - u32 speed = ethtool_cmd_speed(cmd); + u32 speed = cmd->base.speed; /* Verify the settings we care about. */ - if (cmd->autoneg != AUTONEG_ENABLE && - cmd->autoneg != AUTONEG_DISABLE) + if (cmd->base.autoneg != AUTONEG_ENABLE && + cmd->base.autoneg != AUTONEG_DISABLE) return -EINVAL; - if (cmd->autoneg == AUTONEG_DISABLE && + if (cmd->base.autoneg == AUTONEG_DISABLE && ((speed != SPEED_1000 && speed != SPEED_100 && speed != SPEED_10) || - (cmd->duplex != DUPLEX_HALF && - cmd->duplex != DUPLEX_FULL))) + (cmd->base.duplex != DUPLEX_HALF && + cmd->base.duplex != DUPLEX_FULL))) return -EINVAL; /* Apply settings and restart link process. */ @@ -4707,7 +4643,7 @@ static void cas_set_msglevel(struct net_device *dev, u32 value) static int cas_get_regs_len(struct net_device *dev) { struct cas *cp = netdev_priv(dev); - return cp->casreg_len < CAS_MAX_REGS ? cp->casreg_len: CAS_MAX_REGS; + return min_t(int, cp->casreg_len, CAS_MAX_REGS); } static void cas_get_regs(struct net_device *dev, struct ethtool_regs *regs, @@ -4762,8 +4698,6 @@ static void cas_get_ethtool_stats(struct net_device *dev, static const struct ethtool_ops cas_ethtool_ops = { .get_drvinfo = cas_get_drvinfo, - .get_settings = cas_get_settings, - .set_settings = cas_set_settings, .nway_reset = cas_nway_reset, .get_link = cas_get_link, .get_msglevel = cas_get_msglevel, @@ -4773,6 +4707,8 @@ static const struct ethtool_ops cas_ethtool_ops = { .get_sset_count = cas_get_sset_count, .get_strings = cas_get_strings, .get_ethtool_stats = cas_get_ethtool_stats, + .get_link_ksettings = cas_get_link_ksettings, + .set_link_ksettings = cas_set_link_ksettings, }; static int cas_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) @@ -4789,7 +4725,7 @@ static int cas_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) switch (cmd) { case SIOCGMIIPHY: /* Get address of MII PHY in use. */ data->phy_id = cp->phy_addr; - /* Fallthrough... */ + fallthrough; case SIOCGMIIREG: /* Read MII PHY register. */ spin_lock_irqsave(&cp->lock, flags); @@ -4905,7 +4841,7 @@ static const struct net_device_ops cas_netdev_ops = { .ndo_start_xmit = cas_start_xmit, .ndo_get_stats = cas_get_stats, .ndo_set_rx_mode = cas_set_multicast, - .ndo_do_ioctl = cas_ioctl, + .ndo_eth_ioctl = cas_ioctl, .ndo_tx_timeout = cas_tx_timeout, .ndo_change_mtu = cas_change_mtu, .ndo_set_mac_address = eth_mac_addr, @@ -4921,8 +4857,8 @@ static int cas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) unsigned long casreg_len; struct net_device *dev; struct cas *cp; - int i, err, pci_using_dac; u16 pci_cmd; + int i, err; u8 orig_cacheline_size = 0, cas_cacheline_size = 0; if (cas_version_printed++ == 0) @@ -4964,7 +4900,7 @@ static int cas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) pci_cmd |= PCI_COMMAND_PARITY; pci_write_config_word(pdev, PCI_COMMAND, pci_cmd); if (pci_try_set_mwi(pdev)) - pr_warning("Could not enable MWI for %s\n", pci_name(pdev)); + pr_warn("Could not enable MWI for %s\n", pci_name(pdev)); cas_program_bridge(pdev); @@ -4986,31 +4922,17 @@ static int cas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) cas_cacheline_size)) { dev_err(&pdev->dev, "Could not set PCI cache " "line size\n"); - goto err_write_cacheline; + goto err_out_free_res; } } #endif /* Configure DMA attributes. */ - if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { - pci_using_dac = 1; - err = pci_set_consistent_dma_mask(pdev, - DMA_BIT_MASK(64)); - if (err < 0) { - dev_err(&pdev->dev, "Unable to obtain 64-bit DMA " - "for consistent allocations\n"); - goto err_out_free_res; - } - - } else { - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); - if (err) { - dev_err(&pdev->dev, "No usable DMA configuration, " - "aborting\n"); - goto err_out_free_res; - } - pci_using_dac = 0; + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + if (err) { + dev_err(&pdev->dev, "No usable DMA configuration, aborting\n"); + goto err_out_free_res; } casreg_len = pci_resource_len(pdev, 0); @@ -5042,9 +4964,7 @@ static int cas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) spin_lock_init(&cp->stat_lock[N_TX_RINGS]); mutex_init(&cp->pm_mutex); - init_timer(&cp->link_timer); - cp->link_timer.function = cas_link_timer; - cp->link_timer.data = (unsigned long) cp; + timer_setup(&cp->link_timer, cas_link_timer, 0); #if 1 /* Just in case the implementation of atomic operations @@ -5084,9 +5004,9 @@ static int cas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (cp->cas_flags & CAS_FLAG_SATURN) cas_saturn_firmware_init(cp); - cp->init_block = (struct cas_init_block *) - pci_alloc_consistent(pdev, sizeof(struct cas_init_block), - &cp->block_dvma); + cp->init_block = + dma_alloc_coherent(&pdev->dev, sizeof(struct cas_init_block), + &cp->block_dvma, GFP_KERNEL); if (!cp->init_block) { dev_err(&pdev->dev, "Cannot allocate init block, aborting\n"); goto err_out_iounmap; @@ -5109,7 +5029,7 @@ static int cas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) dev->watchdog_timeo = CAS_TX_TIMEOUT; #ifdef USE_NAPI - netif_napi_add(dev, &cp->napi, cas_poll, 64); + netif_napi_add(dev, &cp->napi, cas_poll); #endif dev->irq = pdev->irq; dev->dma = 0; @@ -5118,8 +5038,11 @@ static int cas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if ((cp->cas_flags & CAS_FLAG_NO_HW_CSUM) == 0) dev->features |= NETIF_F_HW_CSUM | NETIF_F_SG; - if (pci_using_dac) - dev->features |= NETIF_F_HIGHDMA; + dev->features |= NETIF_F_HIGHDMA; + + /* MTU range: 60 - varies or 9000 */ + dev->min_mtu = CAS_MIN_MTU; + dev->max_mtu = CAS_MAX_MTU; if (register_netdev(dev)) { dev_err(&pdev->dev, "Cannot register net device, aborting\n"); @@ -5142,8 +5065,8 @@ static int cas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) return 0; err_out_free_consistent: - pci_free_consistent(pdev, sizeof(struct cas_init_block), - cp->init_block, cp->block_dvma); + dma_free_coherent(&pdev->dev, sizeof(struct cas_init_block), + cp->init_block, cp->block_dvma); err_out_iounmap: mutex_lock(&cp->pm_mutex); @@ -5151,13 +5074,14 @@ err_out_iounmap: cas_shutdown(cp); mutex_unlock(&cp->pm_mutex); + vfree(cp->fw_data); + pci_iounmap(pdev, cp->regs); err_out_free_res: pci_release_regions(pdev); -err_write_cacheline: /* Try to restore it in case the error occurred after we * set it. */ @@ -5168,7 +5092,6 @@ err_out_free_netdev: err_out_disable_pdev: pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); return -ENODEV; } @@ -5182,8 +5105,7 @@ static void cas_remove_one(struct pci_dev *pdev) cp = netdev_priv(dev); unregister_netdev(dev); - if (cp->fw_data) - vfree(cp->fw_data); + vfree(cp->fw_data); mutex_lock(&cp->pm_mutex); cancel_work_sync(&cp->reset_task); @@ -5200,19 +5122,17 @@ static void cas_remove_one(struct pci_dev *pdev) cp->orig_cacheline_size); } #endif - pci_free_consistent(pdev, sizeof(struct cas_init_block), - cp->init_block, cp->block_dvma); + dma_free_coherent(&pdev->dev, sizeof(struct cas_init_block), + cp->init_block, cp->block_dvma); pci_iounmap(pdev, cp->regs); free_netdev(dev); pci_release_regions(pdev); pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); } -#ifdef CONFIG_PM -static int cas_suspend(struct pci_dev *pdev, pm_message_t state) +static int __maybe_unused cas_suspend(struct device *dev_d) { - struct net_device *dev = pci_get_drvdata(pdev); + struct net_device *dev = dev_get_drvdata(dev_d); struct cas *cp = netdev_priv(dev); unsigned long flags; @@ -5241,9 +5161,9 @@ static int cas_suspend(struct pci_dev *pdev, pm_message_t state) return 0; } -static int cas_resume(struct pci_dev *pdev) +static int __maybe_unused cas_resume(struct device *dev_d) { - struct net_device *dev = pci_get_drvdata(pdev); + struct net_device *dev = dev_get_drvdata(dev_d); struct cas *cp = netdev_priv(dev); netdev_info(dev, "resuming\n"); @@ -5264,17 +5184,15 @@ static int cas_resume(struct pci_dev *pdev) mutex_unlock(&cp->pm_mutex); return 0; } -#endif /* CONFIG_PM */ + +static SIMPLE_DEV_PM_OPS(cas_pm_ops, cas_suspend, cas_resume); static struct pci_driver cas_driver = { .name = DRV_MODULE_NAME, .id_table = cas_pci_tbl, .probe = cas_init_one, .remove = cas_remove_one, -#ifdef CONFIG_PM - .suspend = cas_suspend, - .resume = cas_resume -#endif + .driver.pm = &cas_pm_ops, }; static int __init cas_init(void) |