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authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 21:15:09 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 21:15:09 +0300
commit3051bf36c25d5153051704291782f8d44e744d36 (patch)
tree72dfc8a1d12675c6f2981d13102df954b678f11b /drivers/net/ethernet/amd/pcnet32.c
parent1e74a2eb1f5cc7f2f2b5aa9c9eeecbcf352220a3 (diff)
parent005c3490e9db23738d91e02788606c0fe4734723 (diff)
downloadlinux-3051bf36c25d5153051704291782f8d44e744d36.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "Highlights: 1) Support TX_RING in AF_PACKET TPACKET_V3 mode, from Sowmini Varadhan. 2) Simplify classifier state on sk_buff in order to shrink it a bit. From Willem de Bruijn. 3) Introduce SIPHASH and it's usage for secure sequence numbers and syncookies. From Jason A. Donenfeld. 4) Reduce CPU usage for ICMP replies we are going to limit or suppress, from Jesper Dangaard Brouer. 5) Introduce Shared Memory Communications socket layer, from Ursula Braun. 6) Add RACK loss detection and allow it to actually trigger fast recovery instead of just assisting after other algorithms have triggered it. From Yuchung Cheng. 7) Add xmit_more and BQL support to mvneta driver, from Simon Guinot. 8) skb_cow_data avoidance in esp4 and esp6, from Steffen Klassert. 9) Export MPLS packet stats via netlink, from Robert Shearman. 10) Significantly improve inet port bind conflict handling, especially when an application is restarted and changes it's setting of reuseport. From Josef Bacik. 11) Implement TX batching in vhost_net, from Jason Wang. 12) Extend the dummy device so that VF (virtual function) features, such as configuration, can be more easily tested. From Phil Sutter. 13) Avoid two atomic ops per page on x86 in bnx2x driver, from Eric Dumazet. 14) Add new bpf MAP, implementing a longest prefix match trie. From Daniel Mack. 15) Packet sample offloading support in mlxsw driver, from Yotam Gigi. 16) Add new aquantia driver, from David VomLehn. 17) Add bpf tracepoints, from Daniel Borkmann. 18) Add support for port mirroring to b53 and bcm_sf2 drivers, from Florian Fainelli. 19) Remove custom busy polling in many drivers, it is done in the core networking since 4.5 times. From Eric Dumazet. 20) Support XDP adjust_head in virtio_net, from John Fastabend. 21) Fix several major holes in neighbour entry confirmation, from Julian Anastasov. 22) Add XDP support to bnxt_en driver, from Michael Chan. 23) VXLAN offloads for enic driver, from Govindarajulu Varadarajan. 24) Add IPVTAP driver (IP-VLAN based tap driver) from Sainath Grandhi. 25) Support GRO in IPSEC protocols, from Steffen Klassert" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1764 commits) Revert "ath10k: Search SMBIOS for OEM board file extension" net: socket: fix recvmmsg not returning error from sock_error bnxt_en: use eth_hw_addr_random() bpf: fix unlocking of jited image when module ronx not set arch: add ARCH_HAS_SET_MEMORY config net: napi_watchdog() can use napi_schedule_irqoff() tcp: Revert "tcp: tcp_probe: use spin_lock_bh()" net/hsr: use eth_hw_addr_random() net: mvpp2: enable building on 64-bit platforms net: mvpp2: switch to build_skb() in the RX path net: mvpp2: simplify MVPP2_PRS_RI_* definitions net: mvpp2: fix indentation of MVPP2_EXT_GLOBAL_CTRL_DEFAULT net: mvpp2: remove unused register definitions net: mvpp2: simplify mvpp2_bm_bufs_add() net: mvpp2: drop useless fields in mvpp2_bm_pool and related code net: mvpp2: remove unused 'tx_skb' field of 'struct mvpp2_tx_queue' net: mvpp2: release reference to txq_cpu[] entry after unmapping net: mvpp2: handle too large value in mvpp2_rx_time_coal_set() net: mvpp2: handle too large value handling in mvpp2_rx_pkts_coal_set() net: mvpp2: remove useless arguments in mvpp2_rx_{pkts, time}_coal_set ...
Diffstat (limited to 'drivers/net/ethernet/amd/pcnet32.c')
-rw-r--r--drivers/net/ethernet/amd/pcnet32.c195
1 files changed, 131 insertions, 64 deletions
diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index 41e58cca8fee..86369d7c9a0f 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -291,7 +291,10 @@ struct pcnet32_private {
int options;
unsigned int shared_irq:1, /* shared irq possible */
dxsuflo:1, /* disable transmit stop on uflo */
- mii:1; /* mii port available */
+ mii:1, /* mii port available */
+ autoneg:1, /* autoneg enabled */
+ port_tp:1, /* port set to TP */
+ fdx:1; /* full duplex enabled */
struct net_device *next;
struct mii_if_info mii_if;
struct timer_list watchdog_timer;
@@ -677,6 +680,52 @@ static void pcnet32_poll_controller(struct net_device *dev)
}
#endif
+/*
+ * lp->lock must be held.
+ */
+static int pcnet32_suspend(struct net_device *dev, unsigned long *flags,
+ int can_sleep)
+{
+ int csr5;
+ struct pcnet32_private *lp = netdev_priv(dev);
+ const struct pcnet32_access *a = lp->a;
+ ulong ioaddr = dev->base_addr;
+ int ticks;
+
+ /* really old chips have to be stopped. */
+ if (lp->chip_version < PCNET32_79C970A)
+ return 0;
+
+ /* set SUSPEND (SPND) - CSR5 bit 0 */
+ csr5 = a->read_csr(ioaddr, CSR5);
+ a->write_csr(ioaddr, CSR5, csr5 | CSR5_SUSPEND);
+
+ /* poll waiting for bit to be set */
+ ticks = 0;
+ while (!(a->read_csr(ioaddr, CSR5) & CSR5_SUSPEND)) {
+ spin_unlock_irqrestore(&lp->lock, *flags);
+ if (can_sleep)
+ msleep(1);
+ else
+ mdelay(1);
+ spin_lock_irqsave(&lp->lock, *flags);
+ ticks++;
+ if (ticks > 200) {
+ netif_printk(lp, hw, KERN_DEBUG, dev,
+ "Error getting into suspend!\n");
+ return 0;
+ }
+ }
+ return 1;
+}
+
+static void pcnet32_clr_suspend(struct pcnet32_private *lp, ulong ioaddr)
+{
+ int csr5 = lp->a->read_csr(ioaddr, CSR5);
+ /* clear SUSPEND (SPND) - CSR5 bit 0 */
+ lp->a->write_csr(ioaddr, CSR5, csr5 & ~CSR5_SUSPEND);
+}
+
static int pcnet32_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *cmd)
{
@@ -684,12 +733,29 @@ static int pcnet32_get_link_ksettings(struct net_device *dev,
unsigned long flags;
int r = -EOPNOTSUPP;
+ spin_lock_irqsave(&lp->lock, flags);
if (lp->mii) {
- spin_lock_irqsave(&lp->lock, flags);
mii_ethtool_get_link_ksettings(&lp->mii_if, cmd);
- spin_unlock_irqrestore(&lp->lock, flags);
+ r = 0;
+ } else if (lp->chip_version == PCNET32_79C970A) {
+ if (lp->autoneg) {
+ cmd->base.autoneg = AUTONEG_ENABLE;
+ if (lp->a->read_bcr(dev->base_addr, 4) == 0xc0)
+ cmd->base.port = PORT_AUI;
+ else
+ cmd->base.port = PORT_TP;
+ } else {
+ cmd->base.autoneg = AUTONEG_DISABLE;
+ cmd->base.port = lp->port_tp ? PORT_TP : PORT_AUI;
+ }
+ cmd->base.duplex = lp->fdx ? DUPLEX_FULL : DUPLEX_HALF;
+ cmd->base.speed = SPEED_10;
+ ethtool_convert_legacy_u32_to_link_mode(
+ cmd->link_modes.supported,
+ SUPPORTED_TP | SUPPORTED_AUI);
r = 0;
}
+ spin_unlock_irqrestore(&lp->lock, flags);
return r;
}
@@ -697,14 +763,46 @@ static int pcnet32_set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *cmd)
{
struct pcnet32_private *lp = netdev_priv(dev);
+ ulong ioaddr = dev->base_addr;
unsigned long flags;
int r = -EOPNOTSUPP;
+ int suspended, bcr2, bcr9, csr15;
+ spin_lock_irqsave(&lp->lock, flags);
if (lp->mii) {
- spin_lock_irqsave(&lp->lock, flags);
r = mii_ethtool_set_link_ksettings(&lp->mii_if, cmd);
- spin_unlock_irqrestore(&lp->lock, flags);
+ } else if (lp->chip_version == PCNET32_79C970A) {
+ suspended = pcnet32_suspend(dev, &flags, 0);
+ if (!suspended)
+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP);
+
+ lp->autoneg = cmd->base.autoneg == AUTONEG_ENABLE;
+ bcr2 = lp->a->read_bcr(ioaddr, 2);
+ if (cmd->base.autoneg == AUTONEG_ENABLE) {
+ lp->a->write_bcr(ioaddr, 2, bcr2 | 0x0002);
+ } else {
+ lp->a->write_bcr(ioaddr, 2, bcr2 & ~0x0002);
+
+ lp->port_tp = cmd->base.port == PORT_TP;
+ csr15 = lp->a->read_csr(ioaddr, CSR15) & ~0x0180;
+ if (cmd->base.port == PORT_TP)
+ csr15 |= 0x0080;
+ lp->a->write_csr(ioaddr, CSR15, csr15);
+ lp->init_block->mode = cpu_to_le16(csr15);
+
+ lp->fdx = cmd->base.duplex == DUPLEX_FULL;
+ bcr9 = lp->a->read_bcr(ioaddr, 9) & ~0x0003;
+ if (cmd->base.duplex == DUPLEX_FULL)
+ bcr9 |= 0x0003;
+ lp->a->write_bcr(ioaddr, 9, bcr9);
+ }
+ if (suspended)
+ pcnet32_clr_suspend(lp, ioaddr);
+ else if (netif_running(dev))
+ pcnet32_restart(dev, CSR0_NORMAL);
+ r = 0;
}
+ spin_unlock_irqrestore(&lp->lock, flags);
return r;
}
@@ -732,7 +830,14 @@ static u32 pcnet32_get_link(struct net_device *dev)
spin_lock_irqsave(&lp->lock, flags);
if (lp->mii) {
r = mii_link_ok(&lp->mii_if);
- } else if (lp->chip_version >= PCNET32_79C970A) {
+ } else if (lp->chip_version == PCNET32_79C970A) {
+ ulong ioaddr = dev->base_addr; /* card base I/O address */
+ /* only read link if port is set to TP */
+ if (!lp->autoneg && lp->port_tp)
+ r = (lp->a->read_bcr(ioaddr, 4) != 0xc0);
+ else /* link always up for AUI port or port auto select */
+ r = 1;
+ } else if (lp->chip_version > PCNET32_79C970A) {
ulong ioaddr = dev->base_addr; /* card base I/O address */
r = (lp->a->read_bcr(ioaddr, 4) != 0xc0);
} else { /* can not detect link on really old chips */
@@ -1070,45 +1175,6 @@ static int pcnet32_set_phys_id(struct net_device *dev,
}
/*
- * lp->lock must be held.
- */
-static int pcnet32_suspend(struct net_device *dev, unsigned long *flags,
- int can_sleep)
-{
- int csr5;
- struct pcnet32_private *lp = netdev_priv(dev);
- const struct pcnet32_access *a = lp->a;
- ulong ioaddr = dev->base_addr;
- int ticks;
-
- /* really old chips have to be stopped. */
- if (lp->chip_version < PCNET32_79C970A)
- return 0;
-
- /* set SUSPEND (SPND) - CSR5 bit 0 */
- csr5 = a->read_csr(ioaddr, CSR5);
- a->write_csr(ioaddr, CSR5, csr5 | CSR5_SUSPEND);
-
- /* poll waiting for bit to be set */
- ticks = 0;
- while (!(a->read_csr(ioaddr, CSR5) & CSR5_SUSPEND)) {
- spin_unlock_irqrestore(&lp->lock, *flags);
- if (can_sleep)
- msleep(1);
- else
- mdelay(1);
- spin_lock_irqsave(&lp->lock, *flags);
- ticks++;
- if (ticks > 200) {
- netif_printk(lp, hw, KERN_DEBUG, dev,
- "Error getting into suspend!\n");
- return 0;
- }
- }
- return 1;
-}
-
-/*
* process one receive descriptor entry
*/
@@ -1350,13 +1416,8 @@ static int pcnet32_poll(struct napi_struct *napi, int budget)
pcnet32_restart(dev, CSR0_START);
netif_wake_queue(dev);
}
- spin_unlock_irqrestore(&lp->lock, flags);
-
- if (work_done < budget) {
- spin_lock_irqsave(&lp->lock, flags);
-
- __napi_complete(napi);
+ if (work_done < budget && napi_complete_done(napi, work_done)) {
/* clear interrupt masks */
val = lp->a->read_csr(ioaddr, CSR3);
val &= 0x00ff;
@@ -1364,9 +1425,9 @@ static int pcnet32_poll(struct napi_struct *napi, int budget)
/* Set interrupt enable. */
lp->a->write_csr(ioaddr, CSR0, CSR0_INTEN);
-
- spin_unlock_irqrestore(&lp->lock, flags);
}
+
+ spin_unlock_irqrestore(&lp->lock, flags);
return work_done;
}
@@ -1430,13 +1491,8 @@ static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs,
}
}
- if (!(csr0 & CSR0_STOP)) { /* If not stopped */
- int csr5;
-
- /* clear SUSPEND (SPND) - CSR5 bit 0 */
- csr5 = a->read_csr(ioaddr, CSR5);
- a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND));
- }
+ if (!(csr0 & CSR0_STOP)) /* If not stopped */
+ pcnet32_clr_suspend(lp, ioaddr);
spin_unlock_irqrestore(&lp->lock, flags);
}
@@ -1817,6 +1873,9 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
lp->options = PCNET32_PORT_ASEL;
else
lp->options = options_mapping[options[cards_found]];
+ /* force default port to TP on 79C970A so link detection can work */
+ if (lp->chip_version == PCNET32_79C970A)
+ lp->options = PCNET32_PORT_10BT;
lp->mii_if.dev = dev;
lp->mii_if.mdio_read = mdio_read;
lp->mii_if.mdio_write = mdio_write;
@@ -2068,6 +2127,10 @@ static int pcnet32_open(struct net_device *dev)
(u32) (lp->rx_ring_dma_addr),
(u32) (lp->init_dma_addr));
+ lp->autoneg = !!(lp->options & PCNET32_PORT_ASEL);
+ lp->port_tp = !!(lp->options & PCNET32_PORT_10BT);
+ lp->fdx = !!(lp->options & PCNET32_PORT_FD);
+
/* set/reset autoselect bit */
val = lp->a->read_bcr(ioaddr, 2) & ~2;
if (lp->options & PCNET32_PORT_ASEL)
@@ -2680,10 +2743,7 @@ static void pcnet32_set_multicast_list(struct net_device *dev)
}
if (suspended) {
- int csr5;
- /* clear SUSPEND (SPND) - CSR5 bit 0 */
- csr5 = lp->a->read_csr(ioaddr, CSR5);
- lp->a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND));
+ pcnet32_clr_suspend(lp, ioaddr);
} else {
lp->a->write_csr(ioaddr, CSR0, CSR0_STOP);
pcnet32_restart(dev, CSR0_NORMAL);
@@ -2794,6 +2854,13 @@ static void pcnet32_check_media(struct net_device *dev, int verbose)
if (lp->mii) {
curr_link = mii_link_ok(&lp->mii_if);
+ } else if (lp->chip_version == PCNET32_79C970A) {
+ ulong ioaddr = dev->base_addr; /* card base I/O address */
+ /* only read link if port is set to TP */
+ if (!lp->autoneg && lp->port_tp)
+ curr_link = (lp->a->read_bcr(ioaddr, 4) != 0xc0);
+ else /* link always up for AUI port or port auto select */
+ curr_link = 1;
} else {
ulong ioaddr = dev->base_addr; /* card base I/O address */
curr_link = (lp->a->read_bcr(ioaddr, 4) != 0xc0);