3c59x: Change locking to avoid use of disable_irq() (Closes: #586967)
svn path=/dists/sid/linux-2.6/; revision=15905
This commit is contained in:
parent
6e434da666
commit
b0319ba2f3
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@ -32,6 +32,7 @@ linux-2.6 (2.6.32-16) UNRELEASED; urgency=low
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* radeon: Fix MacBook Pro connector quirk (Closes: #585943)
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* r8169: Fix MDIO timing (Closes: #583139)
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* Move NEWS to linux-latest-2.6 (Closes: #586401)
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* 3c59x: Change locking to avoid use of disable_irq() (Closes: #586967)
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[ Aurelien Jarno ]
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* [sh4] fix sh_tmu clocksource following recent nohz changes.
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704
debian/patches/bugfix/all/3c59x-Specify-window-for-access-to-windowed-regs.patch
vendored
Normal file
704
debian/patches/bugfix/all/3c59x-Specify-window-for-access-to-windowed-regs.patch
vendored
Normal file
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@ -0,0 +1,704 @@
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From 9d21ef35e8ad9b51362533134518932a3a7b5f0e Mon Sep 17 00:00:00 2001
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From: Ben Hutchings <ben@decadent.org.uk>
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Date: Sun, 20 Jun 2010 21:09:01 +0100
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Subject: [PATCH 1/2] 3c59x: Specify window explicitly for access to windowed registers
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Currently much of the code assumes that a specific window has been
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selected, while a few functions save and restore the window. This
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makes it impossible to introduce fine-grained locking.
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Make those assumptions explicit by introducing wrapper functions
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to set the window and read/write a register. Use these everywhere
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except vortex_interrupt(), vortex_start_xmit() and vortex_rx().
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These set the window just once, or not at all in the case of
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vortex_rx() as it should always be called from vortex_interrupt().
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Cache the current window in struct vortex_private to avoid
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unnecessary hardware writes.
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Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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---
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drivers/net/3c59x.c | 289 +++++++++++++++++++++++++--------------------------
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1 files changed, 140 insertions(+), 149 deletions(-)
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diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
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index 975e25b..95f6919 100644
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--- a/drivers/net/3c59x.c
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+++ b/drivers/net/3c59x.c
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@@ -435,7 +435,6 @@ MODULE_DEVICE_TABLE(pci, vortex_pci_tbl);
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First the windows. There are eight register windows, with the command
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and status registers available in each.
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*/
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-#define EL3WINDOW(win_num) iowrite16(SelectWindow + (win_num), ioaddr + EL3_CMD)
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#define EL3_CMD 0x0e
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#define EL3_STATUS 0x0e
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@@ -647,8 +646,35 @@ struct vortex_private {
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u16 io_size; /* Size of PCI region (for release_region) */
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spinlock_t lock; /* Serialise access to device & its vortex_private */
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struct mii_if_info mii; /* MII lib hooks/info */
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+ int window; /* Register window */
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};
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+static void window_set(struct vortex_private *vp, int window)
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+{
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+ if (window != vp->window) {
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+ iowrite16(SelectWindow + window, vp->ioaddr + EL3_CMD);
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+ vp->window = window;
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+ }
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+}
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+
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+#define DEFINE_WINDOW_IO(size) \
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+static u ## size \
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+window_read ## size(struct vortex_private *vp, int window, int addr) \
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+{ \
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+ window_set(vp, window); \
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+ return ioread ## size(vp->ioaddr + addr); \
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+} \
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+static void \
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+window_write ## size(struct vortex_private *vp, u ## size value, \
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+ int window, int addr) \
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+{ \
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+ window_set(vp, window); \
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+ iowrite ## size(value, vp->ioaddr + addr); \
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+}
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+DEFINE_WINDOW_IO(8)
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+DEFINE_WINDOW_IO(16)
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+DEFINE_WINDOW_IO(32)
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+
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#ifdef CONFIG_PCI
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#define DEVICE_PCI(dev) (((dev)->bus == &pci_bus_type) ? to_pci_dev((dev)) : NULL)
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#else
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@@ -711,7 +737,7 @@ static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq,
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static int vortex_up(struct net_device *dev);
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static void vortex_down(struct net_device *dev, int final);
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static int vortex_open(struct net_device *dev);
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-static void mdio_sync(void __iomem *ioaddr, int bits);
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+static void mdio_sync(struct vortex_private *vp, int bits);
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static int mdio_read(struct net_device *dev, int phy_id, int location);
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static void mdio_write(struct net_device *vp, int phy_id, int location, int value);
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static void vortex_timer(unsigned long arg);
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@@ -1119,6 +1145,7 @@ static int __devinit vortex_probe1(struct device *gendev,
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vp->has_nway = (vci->drv_flags & HAS_NWAY) ? 1 : 0;
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vp->io_size = vci->io_size;
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vp->card_idx = card_idx;
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+ vp->window = -1;
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/* module list only for Compaq device */
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if (gendev == NULL) {
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@@ -1205,7 +1232,6 @@ static int __devinit vortex_probe1(struct device *gendev,
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vp->mii.force_media = vp->full_duplex;
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vp->options = option;
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/* Read the station address from the EEPROM. */
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- EL3WINDOW(0);
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{
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int base;
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@@ -1218,14 +1244,15 @@ static int __devinit vortex_probe1(struct device *gendev,
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for (i = 0; i < 0x40; i++) {
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int timer;
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- iowrite16(base + i, ioaddr + Wn0EepromCmd);
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+ window_write16(vp, base + i, 0, Wn0EepromCmd);
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/* Pause for at least 162 us. for the read to take place. */
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for (timer = 10; timer >= 0; timer--) {
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udelay(162);
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- if ((ioread16(ioaddr + Wn0EepromCmd) & 0x8000) == 0)
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+ if ((window_read16(vp, 0, Wn0EepromCmd) &
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+ 0x8000) == 0)
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break;
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}
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- eeprom[i] = ioread16(ioaddr + Wn0EepromData);
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+ eeprom[i] = window_read16(vp, 0, Wn0EepromData);
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}
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}
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for (i = 0; i < 0x18; i++)
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@@ -1250,9 +1277,8 @@ static int __devinit vortex_probe1(struct device *gendev,
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pr_err("*** EEPROM MAC address is invalid.\n");
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goto free_ring; /* With every pack */
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}
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- EL3WINDOW(2);
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for (i = 0; i < 6; i++)
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- iowrite8(dev->dev_addr[i], ioaddr + i);
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+ window_write8(vp, dev->dev_addr[i], 2, i);
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if (print_info)
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pr_cont(", IRQ %d\n", dev->irq);
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@@ -1261,8 +1287,7 @@ static int __devinit vortex_probe1(struct device *gendev,
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pr_warning(" *** Warning: IRQ %d is unlikely to work! ***\n",
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dev->irq);
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- EL3WINDOW(4);
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- step = (ioread8(ioaddr + Wn4_NetDiag) & 0x1e) >> 1;
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+ step = (window_read8(vp, 4, Wn4_NetDiag) & 0x1e) >> 1;
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if (print_info) {
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pr_info(" product code %02x%02x rev %02x.%d date %02d-%02d-%02d\n",
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eeprom[6]&0xff, eeprom[6]>>8, eeprom[0x14],
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@@ -1285,17 +1310,15 @@ static int __devinit vortex_probe1(struct device *gendev,
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(unsigned long long)pci_resource_start(pdev, 2),
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vp->cb_fn_base);
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}
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- EL3WINDOW(2);
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- n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
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+ n = window_read16(vp, 2, Wn2_ResetOptions) & ~0x4010;
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if (vp->drv_flags & INVERT_LED_PWR)
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n |= 0x10;
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if (vp->drv_flags & INVERT_MII_PWR)
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n |= 0x4000;
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- iowrite16(n, ioaddr + Wn2_ResetOptions);
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+ window_write16(vp, n, 2, Wn2_ResetOptions);
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if (vp->drv_flags & WNO_XCVR_PWR) {
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- EL3WINDOW(0);
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- iowrite16(0x0800, ioaddr);
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+ window_write16(vp, 0x0800, 0, 0);
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}
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}
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@@ -1313,14 +1336,13 @@ static int __devinit vortex_probe1(struct device *gendev,
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{
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static const char * const ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
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unsigned int config;
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- EL3WINDOW(3);
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- vp->available_media = ioread16(ioaddr + Wn3_Options);
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+ vp->available_media = window_read16(vp, 3, Wn3_Options);
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if ((vp->available_media & 0xff) == 0) /* Broken 3c916 */
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vp->available_media = 0x40;
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- config = ioread32(ioaddr + Wn3_Config);
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+ config = window_read32(vp, 3, Wn3_Config);
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if (print_info) {
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pr_debug(" Internal config register is %4.4x, transceivers %#x.\n",
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- config, ioread16(ioaddr + Wn3_Options));
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+ config, window_read16(vp, 3, Wn3_Options));
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pr_info(" %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n",
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8 << RAM_SIZE(config),
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RAM_WIDTH(config) ? "word" : "byte",
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@@ -1346,7 +1368,6 @@ static int __devinit vortex_probe1(struct device *gendev,
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if ((vp->available_media & 0x40) || (vci->drv_flags & HAS_NWAY) ||
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dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
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int phy, phy_idx = 0;
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- EL3WINDOW(4);
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mii_preamble_required++;
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if (vp->drv_flags & EXTRA_PREAMBLE)
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mii_preamble_required++;
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@@ -1478,18 +1499,17 @@ static void
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vortex_set_duplex(struct net_device *dev)
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{
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struct vortex_private *vp = netdev_priv(dev);
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- void __iomem *ioaddr = vp->ioaddr;
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pr_info("%s: setting %s-duplex.\n",
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dev->name, (vp->full_duplex) ? "full" : "half");
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- EL3WINDOW(3);
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/* Set the full-duplex bit. */
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- iowrite16(((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) |
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- (vp->large_frames ? 0x40 : 0) |
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- ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ?
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- 0x100 : 0),
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- ioaddr + Wn3_MAC_Ctrl);
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+ window_write16(vp,
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+ ((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) |
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+ (vp->large_frames ? 0x40 : 0) |
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+ ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ?
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+ 0x100 : 0),
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+ 3, Wn3_MAC_Ctrl);
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}
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static void vortex_check_media(struct net_device *dev, unsigned int init)
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@@ -1529,8 +1549,7 @@ vortex_up(struct net_device *dev)
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}
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/* Before initializing select the active media port. */
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- EL3WINDOW(3);
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- config = ioread32(ioaddr + Wn3_Config);
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+ config = window_read32(vp, 3, Wn3_Config);
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if (vp->media_override != 7) {
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pr_info("%s: Media override to transceiver %d (%s).\n",
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@@ -1577,10 +1596,9 @@ vortex_up(struct net_device *dev)
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config = BFINS(config, dev->if_port, 20, 4);
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if (vortex_debug > 6)
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pr_debug("vortex_up(): writing 0x%x to InternalConfig\n", config);
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- iowrite32(config, ioaddr + Wn3_Config);
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+ window_write32(vp, config, 3, Wn3_Config);
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if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
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- EL3WINDOW(4);
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mii_reg1 = mdio_read(dev, vp->phys[0], MII_BMSR);
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mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA);
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vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0);
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@@ -1601,51 +1619,46 @@ vortex_up(struct net_device *dev)
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iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
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if (vortex_debug > 1) {
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- EL3WINDOW(4);
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pr_debug("%s: vortex_up() irq %d media status %4.4x.\n",
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- dev->name, dev->irq, ioread16(ioaddr + Wn4_Media));
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+ dev->name, dev->irq, window_read16(vp, 4, Wn4_Media));
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}
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/* Set the station address and mask in window 2 each time opened. */
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- EL3WINDOW(2);
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for (i = 0; i < 6; i++)
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- iowrite8(dev->dev_addr[i], ioaddr + i);
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+ window_write8(vp, dev->dev_addr[i], 2, i);
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for (; i < 12; i+=2)
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- iowrite16(0, ioaddr + i);
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+ window_write16(vp, 0, 2, i);
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if (vp->cb_fn_base) {
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- unsigned short n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
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+ unsigned short n = window_read16(vp, 2, Wn2_ResetOptions) & ~0x4010;
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if (vp->drv_flags & INVERT_LED_PWR)
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n |= 0x10;
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if (vp->drv_flags & INVERT_MII_PWR)
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n |= 0x4000;
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- iowrite16(n, ioaddr + Wn2_ResetOptions);
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+ window_write16(vp, n, 2, Wn2_ResetOptions);
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}
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if (dev->if_port == XCVR_10base2)
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/* Start the thinnet transceiver. We should really wait 50ms...*/
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iowrite16(StartCoax, ioaddr + EL3_CMD);
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if (dev->if_port != XCVR_NWAY) {
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- EL3WINDOW(4);
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- iowrite16((ioread16(ioaddr + Wn4_Media) & ~(Media_10TP|Media_SQE)) |
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- media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
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+ window_write16(vp,
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+ (window_read16(vp, 4, Wn4_Media) &
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+ ~(Media_10TP|Media_SQE)) |
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+ media_tbl[dev->if_port].media_bits,
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+ 4, Wn4_Media);
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}
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/* Switch to the stats window, and clear all stats by reading. */
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iowrite16(StatsDisable, ioaddr + EL3_CMD);
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- EL3WINDOW(6);
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for (i = 0; i < 10; i++)
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- ioread8(ioaddr + i);
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- ioread16(ioaddr + 10);
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- ioread16(ioaddr + 12);
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+ window_read8(vp, 6, i);
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+ window_read16(vp, 6, 10);
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+ window_read16(vp, 6, 12);
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/* New: On the Vortex we must also clear the BadSSD counter. */
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- EL3WINDOW(4);
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- ioread8(ioaddr + 12);
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+ window_read8(vp, 4, 12);
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/* ..and on the Boomerang we enable the extra statistics bits. */
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- iowrite16(0x0040, ioaddr + Wn4_NetDiag);
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-
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- /* Switch to register set 7 for normal use. */
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- EL3WINDOW(7);
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+ window_write16(vp, 0x0040, 4, Wn4_NetDiag);
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if (vp->full_bus_master_rx) { /* Boomerang bus master. */
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vp->cur_rx = vp->dirty_rx = 0;
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@@ -1763,7 +1776,7 @@ vortex_timer(unsigned long data)
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void __iomem *ioaddr = vp->ioaddr;
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int next_tick = 60*HZ;
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int ok = 0;
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- int media_status, old_window;
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+ int media_status;
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if (vortex_debug > 2) {
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pr_debug("%s: Media selection timer tick happened, %s.\n",
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@@ -1772,9 +1785,7 @@ vortex_timer(unsigned long data)
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}
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disable_irq_lockdep(dev->irq);
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- old_window = ioread16(ioaddr + EL3_CMD) >> 13;
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- EL3WINDOW(4);
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- media_status = ioread16(ioaddr + Wn4_Media);
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+ media_status = window_read16(vp, 4, Wn4_Media);
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switch (dev->if_port) {
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case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx:
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if (media_status & Media_LnkBeat) {
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@@ -1830,13 +1841,14 @@ vortex_timer(unsigned long data)
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dev->name, media_tbl[dev->if_port].name);
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next_tick = media_tbl[dev->if_port].wait;
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}
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- iowrite16((media_status & ~(Media_10TP|Media_SQE)) |
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- media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
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+ window_write16(vp,
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+ (media_status & ~(Media_10TP|Media_SQE)) |
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+ media_tbl[dev->if_port].media_bits,
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+ 4, Wn4_Media);
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- EL3WINDOW(3);
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- config = ioread32(ioaddr + Wn3_Config);
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+ config = window_read32(vp, 3, Wn3_Config);
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config = BFINS(config, dev->if_port, 20, 4);
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- iowrite32(config, ioaddr + Wn3_Config);
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+ window_write32(vp, config, 3, Wn3_Config);
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iowrite16(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax,
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ioaddr + EL3_CMD);
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@@ -1850,7 +1862,6 @@ leave_media_alone:
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pr_debug("%s: Media selection timer finished, %s.\n",
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dev->name, media_tbl[dev->if_port].name);
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- EL3WINDOW(old_window);
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enable_irq_lockdep(dev->irq);
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mod_timer(&vp->timer, RUN_AT(next_tick));
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if (vp->deferred)
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@@ -1866,12 +1877,11 @@ static void vortex_tx_timeout(struct net_device *dev)
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pr_err("%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
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dev->name, ioread8(ioaddr + TxStatus),
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ioread16(ioaddr + EL3_STATUS));
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- EL3WINDOW(4);
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pr_err(" diagnostics: net %04x media %04x dma %08x fifo %04x\n",
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- ioread16(ioaddr + Wn4_NetDiag),
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- ioread16(ioaddr + Wn4_Media),
|
||||
+ window_read16(vp, 4, Wn4_NetDiag),
|
||||
+ window_read16(vp, 4, Wn4_Media),
|
||||
ioread32(ioaddr + PktStatus),
|
||||
- ioread16(ioaddr + Wn4_FIFODiag));
|
||||
+ window_read16(vp, 4, Wn4_FIFODiag));
|
||||
/* Slight code bloat to be user friendly. */
|
||||
if ((ioread8(ioaddr + TxStatus) & 0x88) == 0x88)
|
||||
pr_err("%s: Transmitter encountered 16 collisions --"
|
||||
@@ -1918,9 +1928,6 @@ static void vortex_tx_timeout(struct net_device *dev)
|
||||
/* Issue Tx Enable */
|
||||
iowrite16(TxEnable, ioaddr + EL3_CMD);
|
||||
dev->trans_start = jiffies;
|
||||
-
|
||||
- /* Switch to register set 7 for normal use. */
|
||||
- EL3WINDOW(7);
|
||||
}
|
||||
|
||||
/*
|
||||
@@ -1981,10 +1988,10 @@ vortex_error(struct net_device *dev, int status)
|
||||
ioread16(ioaddr + EL3_STATUS) & StatsFull) {
|
||||
pr_warning("%s: Updating statistics failed, disabling "
|
||||
"stats as an interrupt source.\n", dev->name);
|
||||
- EL3WINDOW(5);
|
||||
- iowrite16(SetIntrEnb | (ioread16(ioaddr + 10) & ~StatsFull), ioaddr + EL3_CMD);
|
||||
+ iowrite16(SetIntrEnb |
|
||||
+ (window_read16(vp, 5, 10) & ~StatsFull),
|
||||
+ ioaddr + EL3_CMD);
|
||||
vp->intr_enable &= ~StatsFull;
|
||||
- EL3WINDOW(7);
|
||||
DoneDidThat++;
|
||||
}
|
||||
}
|
||||
@@ -1994,8 +2001,7 @@ vortex_error(struct net_device *dev, int status)
|
||||
}
|
||||
if (status & HostError) {
|
||||
u16 fifo_diag;
|
||||
- EL3WINDOW(4);
|
||||
- fifo_diag = ioread16(ioaddr + Wn4_FIFODiag);
|
||||
+ fifo_diag = window_read16(vp, 4, Wn4_FIFODiag);
|
||||
pr_err("%s: Host error, FIFO diagnostic register %4.4x.\n",
|
||||
dev->name, fifo_diag);
|
||||
/* Adapter failure requires Tx/Rx reset and reinit. */
|
||||
@@ -2044,8 +2050,10 @@ vortex_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
||||
if (vp->bus_master) {
|
||||
/* Set the bus-master controller to transfer the packet. */
|
||||
int len = (skb->len + 3) & ~3;
|
||||
- iowrite32(vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len, PCI_DMA_TODEVICE),
|
||||
- ioaddr + Wn7_MasterAddr);
|
||||
+ vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len,
|
||||
+ PCI_DMA_TODEVICE);
|
||||
+ window_set(vp, 7);
|
||||
+ iowrite32(vp->tx_skb_dma, ioaddr + Wn7_MasterAddr);
|
||||
iowrite16(len, ioaddr + Wn7_MasterLen);
|
||||
vp->tx_skb = skb;
|
||||
iowrite16(StartDMADown, ioaddr + EL3_CMD);
|
||||
@@ -2220,6 +2228,8 @@ vortex_interrupt(int irq, void *dev_id)
|
||||
pr_debug("%s: interrupt, status %4.4x, latency %d ticks.\n",
|
||||
dev->name, status, ioread8(ioaddr + Timer));
|
||||
|
||||
+ window_set(vp, 7);
|
||||
+
|
||||
do {
|
||||
if (vortex_debug > 5)
|
||||
pr_debug("%s: In interrupt loop, status %4.4x.\n",
|
||||
@@ -2764,55 +2774,46 @@ static struct net_device_stats *vortex_get_stats(struct net_device *dev)
|
||||
static void update_stats(void __iomem *ioaddr, struct net_device *dev)
|
||||
{
|
||||
struct vortex_private *vp = netdev_priv(dev);
|
||||
- int old_window = ioread16(ioaddr + EL3_CMD);
|
||||
|
||||
- if (old_window == 0xffff) /* Chip suspended or ejected. */
|
||||
- return;
|
||||
/* Unlike the 3c5x9 we need not turn off stats updates while reading. */
|
||||
/* Switch to the stats window, and read everything. */
|
||||
- EL3WINDOW(6);
|
||||
- dev->stats.tx_carrier_errors += ioread8(ioaddr + 0);
|
||||
- dev->stats.tx_heartbeat_errors += ioread8(ioaddr + 1);
|
||||
- dev->stats.tx_window_errors += ioread8(ioaddr + 4);
|
||||
- dev->stats.rx_fifo_errors += ioread8(ioaddr + 5);
|
||||
- dev->stats.tx_packets += ioread8(ioaddr + 6);
|
||||
- dev->stats.tx_packets += (ioread8(ioaddr + 9)&0x30) << 4;
|
||||
- /* Rx packets */ ioread8(ioaddr + 7); /* Must read to clear */
|
||||
+ dev->stats.tx_carrier_errors += window_read8(vp, 6, 0);
|
||||
+ dev->stats.tx_heartbeat_errors += window_read8(vp, 6, 1);
|
||||
+ dev->stats.tx_window_errors += window_read8(vp, 6, 4);
|
||||
+ dev->stats.rx_fifo_errors += window_read8(vp, 6, 5);
|
||||
+ dev->stats.tx_packets += window_read8(vp, 6, 6);
|
||||
+ dev->stats.tx_packets += (window_read8(vp, 6, 9) &
|
||||
+ 0x30) << 4;
|
||||
+ /* Rx packets */ window_read8(vp, 6, 7); /* Must read to clear */
|
||||
/* Don't bother with register 9, an extension of registers 6&7.
|
||||
If we do use the 6&7 values the atomic update assumption above
|
||||
is invalid. */
|
||||
- dev->stats.rx_bytes += ioread16(ioaddr + 10);
|
||||
- dev->stats.tx_bytes += ioread16(ioaddr + 12);
|
||||
+ dev->stats.rx_bytes += window_read16(vp, 6, 10);
|
||||
+ dev->stats.tx_bytes += window_read16(vp, 6, 12);
|
||||
/* Extra stats for get_ethtool_stats() */
|
||||
- vp->xstats.tx_multiple_collisions += ioread8(ioaddr + 2);
|
||||
- vp->xstats.tx_single_collisions += ioread8(ioaddr + 3);
|
||||
- vp->xstats.tx_deferred += ioread8(ioaddr + 8);
|
||||
- EL3WINDOW(4);
|
||||
- vp->xstats.rx_bad_ssd += ioread8(ioaddr + 12);
|
||||
+ vp->xstats.tx_multiple_collisions += window_read8(vp, 6, 2);
|
||||
+ vp->xstats.tx_single_collisions += window_read8(vp, 6, 3);
|
||||
+ vp->xstats.tx_deferred += window_read8(vp, 6, 8);
|
||||
+ vp->xstats.rx_bad_ssd += window_read8(vp, 4, 12);
|
||||
|
||||
dev->stats.collisions = vp->xstats.tx_multiple_collisions
|
||||
+ vp->xstats.tx_single_collisions
|
||||
+ vp->xstats.tx_max_collisions;
|
||||
|
||||
{
|
||||
- u8 up = ioread8(ioaddr + 13);
|
||||
+ u8 up = window_read8(vp, 4, 13);
|
||||
dev->stats.rx_bytes += (up & 0x0f) << 16;
|
||||
dev->stats.tx_bytes += (up & 0xf0) << 12;
|
||||
}
|
||||
-
|
||||
- EL3WINDOW(old_window >> 13);
|
||||
- return;
|
||||
}
|
||||
|
||||
static int vortex_nway_reset(struct net_device *dev)
|
||||
{
|
||||
struct vortex_private *vp = netdev_priv(dev);
|
||||
- void __iomem *ioaddr = vp->ioaddr;
|
||||
unsigned long flags;
|
||||
int rc;
|
||||
|
||||
spin_lock_irqsave(&vp->lock, flags);
|
||||
- EL3WINDOW(4);
|
||||
rc = mii_nway_restart(&vp->mii);
|
||||
spin_unlock_irqrestore(&vp->lock, flags);
|
||||
return rc;
|
||||
@@ -2821,12 +2822,10 @@ static int vortex_nway_reset(struct net_device *dev)
|
||||
static int vortex_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
||||
{
|
||||
struct vortex_private *vp = netdev_priv(dev);
|
||||
- void __iomem *ioaddr = vp->ioaddr;
|
||||
unsigned long flags;
|
||||
int rc;
|
||||
|
||||
spin_lock_irqsave(&vp->lock, flags);
|
||||
- EL3WINDOW(4);
|
||||
rc = mii_ethtool_gset(&vp->mii, cmd);
|
||||
spin_unlock_irqrestore(&vp->lock, flags);
|
||||
return rc;
|
||||
@@ -2835,12 +2834,10 @@ static int vortex_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
||||
static int vortex_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
||||
{
|
||||
struct vortex_private *vp = netdev_priv(dev);
|
||||
- void __iomem *ioaddr = vp->ioaddr;
|
||||
unsigned long flags;
|
||||
int rc;
|
||||
|
||||
spin_lock_irqsave(&vp->lock, flags);
|
||||
- EL3WINDOW(4);
|
||||
rc = mii_ethtool_sset(&vp->mii, cmd);
|
||||
spin_unlock_irqrestore(&vp->lock, flags);
|
||||
return rc;
|
||||
@@ -2935,7 +2932,6 @@ static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
|
||||
{
|
||||
int err;
|
||||
struct vortex_private *vp = netdev_priv(dev);
|
||||
- void __iomem *ioaddr = vp->ioaddr;
|
||||
unsigned long flags;
|
||||
pci_power_t state = 0;
|
||||
|
||||
@@ -2947,7 +2943,6 @@ static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
|
||||
if(state != 0)
|
||||
pci_set_power_state(VORTEX_PCI(vp), PCI_D0);
|
||||
spin_lock_irqsave(&vp->lock, flags);
|
||||
- EL3WINDOW(4);
|
||||
err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL);
|
||||
spin_unlock_irqrestore(&vp->lock, flags);
|
||||
if(state != 0)
|
||||
@@ -2990,8 +2985,6 @@ static void set_rx_mode(struct net_device *dev)
|
||||
static void set_8021q_mode(struct net_device *dev, int enable)
|
||||
{
|
||||
struct vortex_private *vp = netdev_priv(dev);
|
||||
- void __iomem *ioaddr = vp->ioaddr;
|
||||
- int old_window = ioread16(ioaddr + EL3_CMD);
|
||||
int mac_ctrl;
|
||||
|
||||
if ((vp->drv_flags&IS_CYCLONE) || (vp->drv_flags&IS_TORNADO)) {
|
||||
@@ -3002,28 +2995,23 @@ static void set_8021q_mode(struct net_device *dev, int enable)
|
||||
if (enable)
|
||||
max_pkt_size += 4; /* 802.1Q VLAN tag */
|
||||
|
||||
- EL3WINDOW(3);
|
||||
- iowrite16(max_pkt_size, ioaddr+Wn3_MaxPktSize);
|
||||
+ window_write16(vp, max_pkt_size, 3, Wn3_MaxPktSize);
|
||||
|
||||
/* set VlanEtherType to let the hardware checksumming
|
||||
treat tagged frames correctly */
|
||||
- EL3WINDOW(7);
|
||||
- iowrite16(VLAN_ETHER_TYPE, ioaddr+Wn7_VlanEtherType);
|
||||
+ window_write16(vp, VLAN_ETHER_TYPE, 7, Wn7_VlanEtherType);
|
||||
} else {
|
||||
/* on older cards we have to enable large frames */
|
||||
|
||||
vp->large_frames = dev->mtu > 1500 || enable;
|
||||
|
||||
- EL3WINDOW(3);
|
||||
- mac_ctrl = ioread16(ioaddr+Wn3_MAC_Ctrl);
|
||||
+ mac_ctrl = window_read16(vp, 3, Wn3_MAC_Ctrl);
|
||||
if (vp->large_frames)
|
||||
mac_ctrl |= 0x40;
|
||||
else
|
||||
mac_ctrl &= ~0x40;
|
||||
- iowrite16(mac_ctrl, ioaddr+Wn3_MAC_Ctrl);
|
||||
+ window_write16(vp, mac_ctrl, 3, Wn3_MAC_Ctrl);
|
||||
}
|
||||
-
|
||||
- EL3WINDOW(old_window);
|
||||
}
|
||||
#else
|
||||
|
||||
@@ -3042,7 +3030,10 @@ static void set_8021q_mode(struct net_device *dev, int enable)
|
||||
/* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
|
||||
met by back-to-back PCI I/O cycles, but we insert a delay to avoid
|
||||
"overclocking" issues. */
|
||||
-#define mdio_delay() ioread32(mdio_addr)
|
||||
+static void mdio_delay(struct vortex_private *vp)
|
||||
+{
|
||||
+ window_read32(vp, 4, Wn4_PhysicalMgmt);
|
||||
+}
|
||||
|
||||
#define MDIO_SHIFT_CLK 0x01
|
||||
#define MDIO_DIR_WRITE 0x04
|
||||
@@ -3053,16 +3044,15 @@ static void set_8021q_mode(struct net_device *dev, int enable)
|
||||
|
||||
/* Generate the preamble required for initial synchronization and
|
||||
a few older transceivers. */
|
||||
-static void mdio_sync(void __iomem *ioaddr, int bits)
|
||||
+static void mdio_sync(struct vortex_private *vp, int bits)
|
||||
{
|
||||
- void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
|
||||
-
|
||||
/* Establish sync by sending at least 32 logic ones. */
|
||||
while (-- bits >= 0) {
|
||||
- iowrite16(MDIO_DATA_WRITE1, mdio_addr);
|
||||
- mdio_delay();
|
||||
- iowrite16(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
|
||||
- mdio_delay();
|
||||
+ window_write16(vp, MDIO_DATA_WRITE1, 4, Wn4_PhysicalMgmt);
|
||||
+ mdio_delay(vp);
|
||||
+ window_write16(vp, MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK,
|
||||
+ 4, Wn4_PhysicalMgmt);
|
||||
+ mdio_delay(vp);
|
||||
}
|
||||
}
|
||||
|
||||
@@ -3070,29 +3060,31 @@ static int mdio_read(struct net_device *dev, int phy_id, int location)
|
||||
{
|
||||
int i;
|
||||
struct vortex_private *vp = netdev_priv(dev);
|
||||
- void __iomem *ioaddr = vp->ioaddr;
|
||||
int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
|
||||
unsigned int retval = 0;
|
||||
- void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
|
||||
|
||||
if (mii_preamble_required)
|
||||
- mdio_sync(ioaddr, 32);
|
||||
+ mdio_sync(vp, 32);
|
||||
|
||||
/* Shift the read command bits out. */
|
||||
for (i = 14; i >= 0; i--) {
|
||||
int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
|
||||
- iowrite16(dataval, mdio_addr);
|
||||
- mdio_delay();
|
||||
- iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
|
||||
- mdio_delay();
|
||||
+ window_write16(vp, dataval, 4, Wn4_PhysicalMgmt);
|
||||
+ mdio_delay(vp);
|
||||
+ window_write16(vp, dataval | MDIO_SHIFT_CLK,
|
||||
+ 4, Wn4_PhysicalMgmt);
|
||||
+ mdio_delay(vp);
|
||||
}
|
||||
/* Read the two transition, 16 data, and wire-idle bits. */
|
||||
for (i = 19; i > 0; i--) {
|
||||
- iowrite16(MDIO_ENB_IN, mdio_addr);
|
||||
- mdio_delay();
|
||||
- retval = (retval << 1) | ((ioread16(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
|
||||
- iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
|
||||
- mdio_delay();
|
||||
+ window_write16(vp, MDIO_ENB_IN, 4, Wn4_PhysicalMgmt);
|
||||
+ mdio_delay(vp);
|
||||
+ retval = (retval << 1) |
|
||||
+ ((window_read16(vp, 4, Wn4_PhysicalMgmt) &
|
||||
+ MDIO_DATA_READ) ? 1 : 0);
|
||||
+ window_write16(vp, MDIO_ENB_IN | MDIO_SHIFT_CLK,
|
||||
+ 4, Wn4_PhysicalMgmt);
|
||||
+ mdio_delay(vp);
|
||||
}
|
||||
return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff;
|
||||
}
|
||||
@@ -3100,28 +3092,28 @@ static int mdio_read(struct net_device *dev, int phy_id, int location)
|
||||
static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
|
||||
{
|
||||
struct vortex_private *vp = netdev_priv(dev);
|
||||
- void __iomem *ioaddr = vp->ioaddr;
|
||||
int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
|
||||
- void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
|
||||
int i;
|
||||
|
||||
if (mii_preamble_required)
|
||||
- mdio_sync(ioaddr, 32);
|
||||
+ mdio_sync(vp, 32);
|
||||
|
||||
/* Shift the command bits out. */
|
||||
for (i = 31; i >= 0; i--) {
|
||||
int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
|
||||
- iowrite16(dataval, mdio_addr);
|
||||
- mdio_delay();
|
||||
- iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
|
||||
- mdio_delay();
|
||||
+ window_write16(vp, dataval, 4, Wn4_PhysicalMgmt);
|
||||
+ mdio_delay(vp);
|
||||
+ window_write16(vp, dataval | MDIO_SHIFT_CLK,
|
||||
+ 4, Wn4_PhysicalMgmt);
|
||||
+ mdio_delay(vp);
|
||||
}
|
||||
/* Leave the interface idle. */
|
||||
for (i = 1; i >= 0; i--) {
|
||||
- iowrite16(MDIO_ENB_IN, mdio_addr);
|
||||
- mdio_delay();
|
||||
- iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
|
||||
- mdio_delay();
|
||||
+ window_write16(vp, MDIO_ENB_IN, 4, Wn4_PhysicalMgmt);
|
||||
+ mdio_delay(vp);
|
||||
+ window_write16(vp, MDIO_ENB_IN | MDIO_SHIFT_CLK,
|
||||
+ 4, Wn4_PhysicalMgmt);
|
||||
+ mdio_delay(vp);
|
||||
}
|
||||
return;
|
||||
}
|
||||
@@ -3137,8 +3129,7 @@ static void acpi_set_WOL(struct net_device *dev)
|
||||
|
||||
if (vp->enable_wol) {
|
||||
/* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */
|
||||
- EL3WINDOW(7);
|
||||
- iowrite16(2, ioaddr + 0x0c);
|
||||
+ window_write16(vp, 2, 7, 0x0c);
|
||||
/* The RxFilter must accept the WOL frames. */
|
||||
iowrite16(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
|
||||
iowrite16(RxEnable, ioaddr + EL3_CMD);
|
||||
--
|
||||
1.7.1
|
||||
|
217
debian/patches/bugfix/all/3c59x-Use-fine-grained-locks-for-MII-and-windowed-regs.patch
vendored
Normal file
217
debian/patches/bugfix/all/3c59x-Use-fine-grained-locks-for-MII-and-windowed-regs.patch
vendored
Normal file
|
@ -0,0 +1,217 @@
|
|||
From 5c77a7c0a0becd2ae306ee3ad813b4a3e766fcbc Mon Sep 17 00:00:00 2001
|
||||
From: Ben Hutchings <ben@decadent.org.uk>
|
||||
Date: Sun, 20 Jun 2010 21:29:04 +0100
|
||||
Subject: [PATCH 2/2] 3c59x: Use fine-grained locks for MII and windowed register access
|
||||
|
||||
This means that IRQs will only be deferred for relatively short
|
||||
periods of time.
|
||||
|
||||
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
|
||||
---
|
||||
drivers/net/3c59x.c | 67 +++++++++++++++++++++++++++++---------------------
|
||||
1 files changed, 39 insertions(+), 28 deletions(-)
|
||||
|
||||
diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
|
||||
index 95f6919..c1b09bd 100644
|
||||
--- a/drivers/net/3c59x.c
|
||||
+++ b/drivers/net/3c59x.c
|
||||
@@ -644,9 +644,15 @@ struct vortex_private {
|
||||
u16 deferred; /* Resend these interrupts when we
|
||||
* bale from the ISR */
|
||||
u16 io_size; /* Size of PCI region (for release_region) */
|
||||
- spinlock_t lock; /* Serialise access to device & its vortex_private */
|
||||
- struct mii_if_info mii; /* MII lib hooks/info */
|
||||
- int window; /* Register window */
|
||||
+
|
||||
+ /* Serialises access to hardware other than MII and variables below.
|
||||
+ * The lock hierarchy is rtnl_lock > lock > mii_lock > window_lock. */
|
||||
+ spinlock_t lock;
|
||||
+
|
||||
+ spinlock_t mii_lock; /* Serialises access to MII */
|
||||
+ struct mii_if_info mii; /* MII lib hooks/info */
|
||||
+ spinlock_t window_lock; /* Serialises access to windowed regs */
|
||||
+ int window; /* Register window */
|
||||
};
|
||||
|
||||
static void window_set(struct vortex_private *vp, int window)
|
||||
@@ -661,15 +667,23 @@ static void window_set(struct vortex_private *vp, int window)
|
||||
static u ## size \
|
||||
window_read ## size(struct vortex_private *vp, int window, int addr) \
|
||||
{ \
|
||||
+ unsigned long flags; \
|
||||
+ u ## size ret; \
|
||||
+ spin_lock_irqsave(&vp->window_lock, flags); \
|
||||
window_set(vp, window); \
|
||||
- return ioread ## size(vp->ioaddr + addr); \
|
||||
+ ret = ioread ## size(vp->ioaddr + addr); \
|
||||
+ spin_unlock_irqrestore(&vp->window_lock, flags); \
|
||||
+ return ret; \
|
||||
} \
|
||||
static void \
|
||||
window_write ## size(struct vortex_private *vp, u ## size value, \
|
||||
int window, int addr) \
|
||||
{ \
|
||||
+ unsigned long flags; \
|
||||
+ spin_lock_irqsave(&vp->window_lock, flags); \
|
||||
window_set(vp, window); \
|
||||
iowrite ## size(value, vp->ioaddr + addr); \
|
||||
+ spin_unlock_irqrestore(&vp->window_lock, flags); \
|
||||
}
|
||||
DEFINE_WINDOW_IO(8)
|
||||
DEFINE_WINDOW_IO(16)
|
||||
@@ -1784,7 +1798,6 @@ vortex_timer(unsigned long data)
|
||||
pr_debug("dev->watchdog_timeo=%d\n", dev->watchdog_timeo);
|
||||
}
|
||||
|
||||
- disable_irq_lockdep(dev->irq);
|
||||
media_status = window_read16(vp, 4, Wn4_Media);
|
||||
switch (dev->if_port) {
|
||||
case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx:
|
||||
@@ -1805,10 +1818,7 @@ vortex_timer(unsigned long data)
|
||||
case XCVR_MII: case XCVR_NWAY:
|
||||
{
|
||||
ok = 1;
|
||||
- /* Interrupts are already disabled */
|
||||
- spin_lock(&vp->lock);
|
||||
vortex_check_media(dev, 0);
|
||||
- spin_unlock(&vp->lock);
|
||||
}
|
||||
break;
|
||||
default: /* Other media types handled by Tx timeouts. */
|
||||
@@ -1827,6 +1837,8 @@ vortex_timer(unsigned long data)
|
||||
if (!ok) {
|
||||
unsigned int config;
|
||||
|
||||
+ spin_lock_irq(&vp->lock);
|
||||
+
|
||||
do {
|
||||
dev->if_port = media_tbl[dev->if_port].next;
|
||||
} while ( ! (vp->available_media & media_tbl[dev->if_port].mask));
|
||||
@@ -1855,6 +1867,8 @@ vortex_timer(unsigned long data)
|
||||
if (vortex_debug > 1)
|
||||
pr_debug("wrote 0x%08x to Wn3_Config\n", config);
|
||||
/* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */
|
||||
+
|
||||
+ spin_unlock_irq(&vp->lock);
|
||||
}
|
||||
|
||||
leave_media_alone:
|
||||
@@ -1862,7 +1876,6 @@ leave_media_alone:
|
||||
pr_debug("%s: Media selection timer finished, %s.\n",
|
||||
dev->name, media_tbl[dev->if_port].name);
|
||||
|
||||
- enable_irq_lockdep(dev->irq);
|
||||
mod_timer(&vp->timer, RUN_AT(next_tick));
|
||||
if (vp->deferred)
|
||||
iowrite16(FakeIntr, ioaddr + EL3_CMD);
|
||||
@@ -2052,9 +2065,11 @@ vortex_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
||||
int len = (skb->len + 3) & ~3;
|
||||
vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len,
|
||||
PCI_DMA_TODEVICE);
|
||||
+ spin_lock_irq(&vp->window_lock);
|
||||
window_set(vp, 7);
|
||||
iowrite32(vp->tx_skb_dma, ioaddr + Wn7_MasterAddr);
|
||||
iowrite16(len, ioaddr + Wn7_MasterLen);
|
||||
+ spin_unlock_irq(&vp->window_lock);
|
||||
vp->tx_skb = skb;
|
||||
iowrite16(StartDMADown, ioaddr + EL3_CMD);
|
||||
/* netif_wake_queue() will be called at the DMADone interrupt. */
|
||||
@@ -2228,6 +2243,7 @@ vortex_interrupt(int irq, void *dev_id)
|
||||
pr_debug("%s: interrupt, status %4.4x, latency %d ticks.\n",
|
||||
dev->name, status, ioread8(ioaddr + Timer));
|
||||
|
||||
+ spin_lock(&vp->window_lock);
|
||||
window_set(vp, 7);
|
||||
|
||||
do {
|
||||
@@ -2288,6 +2304,8 @@ vortex_interrupt(int irq, void *dev_id)
|
||||
iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
|
||||
} while ((status = ioread16(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete));
|
||||
|
||||
+ spin_unlock(&vp->window_lock);
|
||||
+
|
||||
if (vortex_debug > 4)
|
||||
pr_debug("%s: exiting interrupt, status %4.4x.\n",
|
||||
dev->name, status);
|
||||
@@ -2810,37 +2828,22 @@ static void update_stats(void __iomem *ioaddr, struct net_device *dev)
|
||||
static int vortex_nway_reset(struct net_device *dev)
|
||||
{
|
||||
struct vortex_private *vp = netdev_priv(dev);
|
||||
- unsigned long flags;
|
||||
- int rc;
|
||||
|
||||
- spin_lock_irqsave(&vp->lock, flags);
|
||||
- rc = mii_nway_restart(&vp->mii);
|
||||
- spin_unlock_irqrestore(&vp->lock, flags);
|
||||
- return rc;
|
||||
+ return mii_nway_restart(&vp->mii);
|
||||
}
|
||||
|
||||
static int vortex_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
||||
{
|
||||
struct vortex_private *vp = netdev_priv(dev);
|
||||
- unsigned long flags;
|
||||
- int rc;
|
||||
|
||||
- spin_lock_irqsave(&vp->lock, flags);
|
||||
- rc = mii_ethtool_gset(&vp->mii, cmd);
|
||||
- spin_unlock_irqrestore(&vp->lock, flags);
|
||||
- return rc;
|
||||
+ return mii_ethtool_gset(&vp->mii, cmd);
|
||||
}
|
||||
|
||||
static int vortex_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
||||
{
|
||||
struct vortex_private *vp = netdev_priv(dev);
|
||||
- unsigned long flags;
|
||||
- int rc;
|
||||
|
||||
- spin_lock_irqsave(&vp->lock, flags);
|
||||
- rc = mii_ethtool_sset(&vp->mii, cmd);
|
||||
- spin_unlock_irqrestore(&vp->lock, flags);
|
||||
- return rc;
|
||||
+ return mii_ethtool_sset(&vp->mii, cmd);
|
||||
}
|
||||
|
||||
static u32 vortex_get_msglevel(struct net_device *dev)
|
||||
@@ -3063,6 +3066,8 @@ static int mdio_read(struct net_device *dev, int phy_id, int location)
|
||||
int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
|
||||
unsigned int retval = 0;
|
||||
|
||||
+ spin_lock_bh(&vp->mii_lock);
|
||||
+
|
||||
if (mii_preamble_required)
|
||||
mdio_sync(vp, 32);
|
||||
|
||||
@@ -3086,6 +3091,9 @@ static int mdio_read(struct net_device *dev, int phy_id, int location)
|
||||
4, Wn4_PhysicalMgmt);
|
||||
mdio_delay(vp);
|
||||
}
|
||||
+
|
||||
+ spin_unlock_bh(&vp->mii_lock);
|
||||
+
|
||||
return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff;
|
||||
}
|
||||
|
||||
@@ -3095,6 +3103,8 @@ static void mdio_write(struct net_device *dev, int phy_id, int location, int val
|
||||
int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
|
||||
int i;
|
||||
|
||||
+ spin_lock_bh(&vp->mii_lock);
|
||||
+
|
||||
if (mii_preamble_required)
|
||||
mdio_sync(vp, 32);
|
||||
|
||||
@@ -3115,7 +3125,8 @@ static void mdio_write(struct net_device *dev, int phy_id, int location, int val
|
||||
4, Wn4_PhysicalMgmt);
|
||||
mdio_delay(vp);
|
||||
}
|
||||
- return;
|
||||
+
|
||||
+ spin_unlock_bh(&vp->mii_lock);
|
||||
}
|
||||
|
||||
/* ACPI: Advanced Configuration and Power Interface. */
|
||||
--
|
||||
1.7.1
|
||||
|
|
@ -157,3 +157,5 @@
|
|||
+ bugfix/arm/mv_cesa-make-copy-back-optional.patch
|
||||
+ bugfix/arm/mv_cesa-process-data-previous-requests.patch
|
||||
+ bugfix/arm/mv_cesa-sha1-async-drivers.patch
|
||||
+ bugfix/all/3c59x-Specify-window-for-access-to-windowed-regs.patch
|
||||
+ bugfix/all/3c59x-Use-fine-grained-locks-for-MII-and-windowed-regs.patch
|
||||
|
|
Loading…
Reference in New Issue