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tulip: implement wake-on-lan support
Based on a patch from http://simon.baatz.info/wol-support-for-an983b/ Tested to resume from suspend by magic packet. Signed-off-by: Steven Walter <stevenrwalter@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Steven Walter
David S. Miller
parent
7a1d7f01b5
commit
db6f30078d
@ -20,6 +20,7 @@
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <linux/netdevice.h>
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#include <linux/ethtool.h>
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#include <linux/timer.h>
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#include <linux/delay.h>
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#include <linux/pci.h>
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@ -51,22 +52,23 @@ struct tulip_chip_table {
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enum tbl_flag {
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HAS_MII = 0x0001,
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HAS_MEDIA_TABLE = 0x0002,
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CSR12_IN_SROM = 0x0004,
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ALWAYS_CHECK_MII = 0x0008,
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HAS_ACPI = 0x0010,
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MC_HASH_ONLY = 0x0020, /* Hash-only multicast filter. */
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HAS_PNICNWAY = 0x0080,
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HAS_NWAY = 0x0040, /* Uses internal NWay xcvr. */
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HAS_INTR_MITIGATION = 0x0100,
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IS_ASIX = 0x0200,
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HAS_8023X = 0x0400,
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COMET_MAC_ADDR = 0x0800,
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HAS_PCI_MWI = 0x1000,
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HAS_PHY_IRQ = 0x2000,
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HAS_SWAPPED_SEEPROM = 0x4000,
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NEEDS_FAKE_MEDIA_TABLE = 0x8000,
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HAS_MII = 0x00001,
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HAS_MEDIA_TABLE = 0x00002,
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CSR12_IN_SROM = 0x00004,
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ALWAYS_CHECK_MII = 0x00008,
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HAS_ACPI = 0x00010,
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MC_HASH_ONLY = 0x00020, /* Hash-only multicast filter. */
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HAS_PNICNWAY = 0x00080,
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HAS_NWAY = 0x00040, /* Uses internal NWay xcvr. */
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HAS_INTR_MITIGATION = 0x00100,
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IS_ASIX = 0x00200,
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HAS_8023X = 0x00400,
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COMET_MAC_ADDR = 0x00800,
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HAS_PCI_MWI = 0x01000,
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HAS_PHY_IRQ = 0x02000,
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HAS_SWAPPED_SEEPROM = 0x04000,
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NEEDS_FAKE_MEDIA_TABLE = 0x08000,
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COMET_PM = 0x10000,
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};
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@ -120,6 +122,11 @@ enum tulip_offsets {
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CSR13 = 0x68,
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CSR14 = 0x70,
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CSR15 = 0x78,
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CSR18 = 0x88,
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CSR19 = 0x8c,
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CSR20 = 0x90,
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CSR27 = 0xAC,
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CSR28 = 0xB0,
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};
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/* register offset and bits for CFDD PCI config reg */
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@ -289,6 +296,30 @@ enum t21143_csr6_bits {
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csr6_mask_100bt = (csr6_scr | csr6_pcs | csr6_hbd),
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};
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enum tulip_comet_csr13_bits {
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/* The LINKOFFE and LINKONE work in conjunction with LSCE, i.e. they
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* determine which link status transition wakes up if LSCE is
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* enabled */
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comet_csr13_linkoffe = (1 << 17),
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comet_csr13_linkone = (1 << 16),
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comet_csr13_wfre = (1 << 10),
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comet_csr13_mpre = (1 << 9),
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comet_csr13_lsce = (1 << 8),
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comet_csr13_wfr = (1 << 2),
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comet_csr13_mpr = (1 << 1),
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comet_csr13_lsc = (1 << 0),
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};
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enum tulip_comet_csr18_bits {
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comet_csr18_pmes_sticky = (1 << 24),
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comet_csr18_pm_mode = (1 << 19),
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comet_csr18_apm_mode = (1 << 18),
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comet_csr18_d3a = (1 << 7)
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};
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enum tulip_comet_csr20_bits {
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comet_csr20_pmes = (1 << 15),
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};
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/* Keep the ring sizes a power of two for efficiency.
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Making the Tx ring too large decreases the effectiveness of channel
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@ -411,6 +442,7 @@ struct tulip_private {
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unsigned int csr6; /* Current CSR6 control settings. */
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unsigned char eeprom[EEPROM_SIZE]; /* Serial EEPROM contents. */
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void (*link_change) (struct net_device * dev, int csr5);
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struct ethtool_wolinfo wolinfo; /* WOL settings */
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u16 sym_advertise, mii_advertise; /* NWay capabilities advertised. */
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u16 lpar; /* 21143 Link partner ability. */
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u16 advertising[4];
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@ -30,7 +30,6 @@
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#include <linux/etherdevice.h>
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#include <linux/delay.h>
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#include <linux/mii.h>
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#include <linux/ethtool.h>
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#include <linux/crc32.h>
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#include <asm/unaligned.h>
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#include <asm/uaccess.h>
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@ -272,6 +271,7 @@ static void tulip_down(struct net_device *dev);
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static struct net_device_stats *tulip_get_stats(struct net_device *dev);
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static int private_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
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static void set_rx_mode(struct net_device *dev);
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static void tulip_set_wolopts(struct pci_dev *pdev, u32 wolopts);
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#ifdef CONFIG_NET_POLL_CONTROLLER
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static void poll_tulip(struct net_device *dev);
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#endif
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@ -309,6 +309,11 @@ static void tulip_up(struct net_device *dev)
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/* Wake the chip from sleep/snooze mode. */
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tulip_set_power_state (tp, 0, 0);
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/* Disable all WOL events */
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pci_enable_wake(tp->pdev, PCI_D3hot, 0);
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pci_enable_wake(tp->pdev, PCI_D3cold, 0);
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tulip_set_wolopts(tp->pdev, 0);
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/* On some chip revs we must set the MII/SYM port before the reset!? */
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if (tp->mii_cnt || (tp->mtable && tp->mtable->has_mii))
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iowrite32(0x00040000, ioaddr + CSR6);
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@ -345,8 +350,8 @@ static void tulip_up(struct net_device *dev)
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} else if (tp->flags & COMET_MAC_ADDR) {
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iowrite32(addr_low, ioaddr + 0xA4);
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iowrite32(addr_high, ioaddr + 0xA8);
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iowrite32(0, ioaddr + 0xAC);
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iowrite32(0, ioaddr + 0xB0);
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iowrite32(0, ioaddr + CSR27);
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iowrite32(0, ioaddr + CSR28);
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}
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} else {
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/* This is set_rx_mode(), but without starting the transmitter. */
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@ -876,8 +881,35 @@ static void tulip_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *in
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strcpy(info->bus_info, pci_name(np->pdev));
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}
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static int tulip_ethtool_set_wol(struct net_device *dev,
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struct ethtool_wolinfo *wolinfo)
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{
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struct tulip_private *tp = netdev_priv(dev);
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if (wolinfo->wolopts & (~tp->wolinfo.supported))
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return -EOPNOTSUPP;
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tp->wolinfo.wolopts = wolinfo->wolopts;
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device_set_wakeup_enable(&tp->pdev->dev, tp->wolinfo.wolopts);
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return 0;
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}
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static void tulip_ethtool_get_wol(struct net_device *dev,
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struct ethtool_wolinfo *wolinfo)
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{
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struct tulip_private *tp = netdev_priv(dev);
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wolinfo->supported = tp->wolinfo.supported;
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wolinfo->wolopts = tp->wolinfo.wolopts;
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return;
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}
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static const struct ethtool_ops ops = {
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.get_drvinfo = tulip_get_drvinfo
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.get_drvinfo = tulip_get_drvinfo,
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.set_wol = tulip_ethtool_set_wol,
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.get_wol = tulip_ethtool_get_wol,
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};
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/* Provide ioctl() calls to examine the MII xcvr state. */
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@ -1093,8 +1125,8 @@ static void set_rx_mode(struct net_device *dev)
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iowrite32(3, ioaddr + CSR13);
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iowrite32(mc_filter[1], ioaddr + CSR14);
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} else if (tp->flags & COMET_MAC_ADDR) {
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iowrite32(mc_filter[0], ioaddr + 0xAC);
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iowrite32(mc_filter[1], ioaddr + 0xB0);
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iowrite32(mc_filter[0], ioaddr + CSR27);
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iowrite32(mc_filter[1], ioaddr + CSR28);
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}
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tp->mc_filter[0] = mc_filter[0];
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tp->mc_filter[1] = mc_filter[1];
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@ -1434,6 +1466,19 @@ static int __devinit tulip_init_one (struct pci_dev *pdev,
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tp->chip_id = chip_idx;
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tp->flags = tulip_tbl[chip_idx].flags;
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tp->wolinfo.supported = 0;
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tp->wolinfo.wolopts = 0;
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/* COMET: Enable power management only for AN983B */
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if (chip_idx == COMET ) {
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u32 sig;
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pci_read_config_dword (pdev, 0x80, &sig);
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if (sig == 0x09811317) {
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tp->flags |= COMET_PM;
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tp->wolinfo.supported = WAKE_PHY | WAKE_MAGIC;
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printk(KERN_INFO "tulip_init_one: Enabled WOL support for AN983B\n");
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}
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}
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tp->pdev = pdev;
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tp->base_addr = ioaddr;
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tp->revision = pdev->revision;
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@ -1766,11 +1811,43 @@ err_out_free_netdev:
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}
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/* set the registers according to the given wolopts */
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static void tulip_set_wolopts (struct pci_dev *pdev, u32 wolopts)
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{
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struct net_device *dev = pci_get_drvdata(pdev);
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struct tulip_private *tp = netdev_priv(dev);
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void __iomem *ioaddr = tp->base_addr;
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if (tp->flags & COMET_PM) {
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unsigned int tmp;
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tmp = ioread32(ioaddr + CSR18);
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tmp &= ~(comet_csr18_pmes_sticky | comet_csr18_apm_mode | comet_csr18_d3a);
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tmp |= comet_csr18_pm_mode;
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iowrite32(tmp, ioaddr + CSR18);
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/* Set the Wake-up Control/Status Register to the given WOL options*/
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tmp = ioread32(ioaddr + CSR13);
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tmp &= ~(comet_csr13_linkoffe | comet_csr13_linkone | comet_csr13_wfre | comet_csr13_lsce | comet_csr13_mpre);
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if (wolopts & WAKE_MAGIC)
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tmp |= comet_csr13_mpre;
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if (wolopts & WAKE_PHY)
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tmp |= comet_csr13_linkoffe | comet_csr13_linkone | comet_csr13_lsce;
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/* Clear the event flags */
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tmp |= comet_csr13_wfr | comet_csr13_mpr | comet_csr13_lsc;
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iowrite32(tmp, ioaddr + CSR13);
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}
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}
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#ifdef CONFIG_PM
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static int tulip_suspend (struct pci_dev *pdev, pm_message_t state)
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{
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pci_power_t pstate;
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struct net_device *dev = pci_get_drvdata(pdev);
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struct tulip_private *tp = netdev_priv(dev);
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if (!dev)
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return -EINVAL;
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@ -1786,7 +1863,16 @@ static int tulip_suspend (struct pci_dev *pdev, pm_message_t state)
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save_state:
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pci_save_state(pdev);
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pci_disable_device(pdev);
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pci_set_power_state(pdev, pci_choose_state(pdev, state));
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pstate = pci_choose_state(pdev, state);
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if (state.event == PM_EVENT_SUSPEND && pstate != PCI_D0) {
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int rc;
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tulip_set_wolopts(pdev, tp->wolinfo.wolopts);
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rc = pci_enable_wake(pdev, pstate, tp->wolinfo.wolopts);
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if (rc)
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printk("tulip: pci_enable_wake failed (%d)\n", rc);
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}
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pci_set_power_state(pdev, pstate);
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return 0;
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}
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@ -1795,7 +1881,10 @@ save_state:
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static int tulip_resume(struct pci_dev *pdev)
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{
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struct net_device *dev = pci_get_drvdata(pdev);
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struct tulip_private *tp = netdev_priv(dev);
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void __iomem *ioaddr = tp->base_addr;
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int retval;
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unsigned int tmp;
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if (!dev)
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return -EINVAL;
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@ -1816,6 +1905,18 @@ static int tulip_resume(struct pci_dev *pdev)
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return retval;
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}
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if (tp->flags & COMET_PM) {
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pci_enable_wake(pdev, PCI_D3hot, 0);
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pci_enable_wake(pdev, PCI_D3cold, 0);
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/* Clear the PMES flag */
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tmp = ioread32(ioaddr + CSR20);
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tmp |= comet_csr20_pmes;
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iowrite32(tmp, ioaddr + CSR20);
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/* Disable all wake-up events */
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tulip_set_wolopts(pdev, 0);
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}
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netif_device_attach(dev);
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if (netif_running(dev))
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