lkml.org 
[lkml]   [2002]   [Sep]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectPATCH: sundance #2
Thanks to Donald for his comments.  This patch addresses the first of 
his two emails.

This patch is _cumulative_ with the last one I sent (sundance 1.04), so
do not discard that one.

Again additional testing is appreciated. Keep the feedback coming,
there will be more sundance bugfixes (patch #3, #4, etc.)

Jeff


diff -Nru a/drivers/net/sundance.c b/drivers/net/sundance.c
--- a/drivers/net/sundance.c Thu Sep 19 13:05:53 2002
+++ b/drivers/net/sundance.c Thu Sep 19 13:05:53 2002
@@ -18,26 +18,34 @@
http://www.scyld.com/network/sundance.html


- Version 1.01a (jgarzik):
+ Version LK1.01a (jgarzik):
- Replace some MII-related magic numbers with constants

- Version 1.02 (D-Link):
+ Version LK1.02 (D-Link):
- Add new board to PCI ID list
- Fix multicast bug

- Version 1.03 (D-Link):
+ Version LK1.03 (D-Link):
- New Rx scheme, reduce Rx congestion
- Option to disable flow control

- Version 1.04 (D-Link):
+ Version LK1.04 (D-Link):
- Tx timeout recovery
- More support for ethtool.

+ Version LK1.04a (jgarzik):
+ - Remove unused/constant members from struct pci_id_info
+ (which then allows removal of 'drv_flags' from private struct)
+ - If no phy is found, fail to load that board
+ - Always start phy id scan at id 1 to avoid problems (Donald Becker)
+ - Autodetect where mii_preable_required is needed,
+ default to not needed. (Donald Becker)
+
*/

#define DRV_NAME "sundance"
-#define DRV_VERSION "1.04"
-#define DRV_RELDATE "19-Aug-2002"
+#define DRV_VERSION "1.01+LK1.04a"
+#define DRV_RELDATE "19-Sep-2002"


/* The user-configurable values.
@@ -72,6 +80,12 @@
*/
#define MAX_UNITS 8
static char *media[MAX_UNITS];
+
+/* Set iff a MII transceiver on any interface requires mdio preamble.
+ This only set with older tranceivers, so the extra
+ code size of a per-interface flag is not worthwhile. */
+static int mii_preamble_required = 0;
+
/* Operational parameters that are set at compile time. */

/* Keep the ring sizes a power of two for compile efficiency.
@@ -145,11 +159,14 @@
MODULE_PARM(rx_copybreak, "i");
MODULE_PARM(media, "1-" __MODULE_STRING(MAX_UNITS) "s");
MODULE_PARM(flowctrl, "i");
+MODULE_PARM(mii_preamble_required, "i");
MODULE_PARM_DESC(max_interrupt_work, "Sundance Alta maximum events handled per interrupt");
MODULE_PARM_DESC(mtu, "Sundance Alta MTU (all boards)");
MODULE_PARM_DESC(debug, "Sundance Alta debug level (0-5)");
MODULE_PARM_DESC(rx_copybreak, "Sundance Alta copy breakpoint for copy-only-tiny-frames");
MODULE_PARM_DESC(flowctrl, "Sundance Alta flow control [0|1]");
+MODULE_PARM_DESC(mii_preamble_required, "Set to send a preamble before MII management transactions");
+
/*
Theory of Operation

@@ -225,20 +242,6 @@
*/


-enum pci_id_flags_bits {
- /* Set PCI command register bits before calling probe1(). */
- PCI_USES_IO=1, PCI_USES_MEM=2, PCI_USES_MASTER=4,
- /* Read and map the single following PCI BAR. */
- PCI_ADDR0=0<<4, PCI_ADDR1=1<<4, PCI_ADDR2=2<<4, PCI_ADDR3=3<<4,
- PCI_ADDR_64BITS=0x100, PCI_NO_ACPI_WAKE=0x200, PCI_NO_MIN_LATENCY=0x400,
-};
-enum chip_capability_flags {CanHaveMII=1, };
-#ifdef USE_IO_OPS
-#define PCI_IOTYPE (PCI_USES_MASTER | PCI_USES_IO | PCI_ADDR0)
-#else
-#define PCI_IOTYPE (PCI_USES_MASTER | PCI_USES_MEM | PCI_ADDR1)
-#endif
-
static struct pci_device_id sundance_pci_tbl[] __devinitdata = {
{0x1186, 0x1002, 0x1186, 0x1002, 0, 0, 0},
{0x1186, 0x1002, 0x1186, 0x1003, 0, 0, 1},
@@ -250,31 +253,20 @@
};
MODULE_DEVICE_TABLE(pci, sundance_pci_tbl);

+enum {
+ netdev_io_size = 128
+};
+
struct pci_id_info {
const char *name;
- struct match_info {
- int pci, pci_mask, subsystem, subsystem_mask;
- int revision, revision_mask; /* Only 8 bits. */
- } id;
- enum pci_id_flags_bits pci_flags;
- int io_size; /* Needed for I/O region check or ioremap(). */
- int drv_flags; /* Driver use, intended as capability flags. */
};
static struct pci_id_info pci_id_tbl[] = {
- {"D-Link DFE-550TX FAST Ethernet Adapter", {0x10021186, 0xffffffff,},
- PCI_IOTYPE, 128, CanHaveMII},
- {"D-Link DFE-550FX 100Mbps Fiber-optics Adapter",
- {0x10031186, 0xffffffff,},
- PCI_IOTYPE, 128, CanHaveMII},
- {"D-Link DFE-580TX 4 port Server Adapter", {0x10121186, 0xffffffff,},
- PCI_IOTYPE, 128, CanHaveMII},
- {"D-Link DFE-530TXS FAST Ethernet Adapter", {0x10021186, 0xffffffff,},
- PCI_IOTYPE, 128, CanHaveMII},
- {"D-Link DL10050-based FAST Ethernet Adapter",
- {0x10021186, 0xffffffff,},
- PCI_IOTYPE, 128, CanHaveMII},
- {"Sundance Technology Alta", {0x020113F0, 0xffffffff,},
- PCI_IOTYPE, 128, CanHaveMII},
+ {"D-Link DFE-550TX FAST Ethernet Adapter"},
+ {"D-Link DFE-550FX 100Mbps Fiber-optics Adapter"},
+ {"D-Link DFE-580TX 4 port Server Adapter"},
+ {"D-Link DFE-530TXS FAST Ethernet Adapter"},
+ {"D-Link DL10050-based FAST Ethernet Adapter"},
+ {"Sundance Technology Alta"},
{0,}, /* 0 terminated list. */
};

@@ -430,7 +422,7 @@
/* Frequently used values: keep some adjacent for cache effect. */
spinlock_t lock;
spinlock_t rx_lock; /* Group with Tx control cache line. */
- int chip_id, drv_flags;
+ int chip_id;
unsigned int cur_rx, dirty_rx; /* Producer/consumer ring indices */
unsigned int rx_buf_sz; /* Based on MTU+slack. */
struct netdev_desc *last_tx; /* Last Tx descriptor used. */
@@ -447,7 +439,6 @@
spinlock_t mcastlock; /* SMP lock multicast updates. */
u16 mcast_filter[4];
/* MII transceiver section. */
- int mii_cnt; /* MII device addresses. */
u16 advertising; /* NWay media advertisement */
unsigned char phys[MII_CNT]; /* MII device addresses, only first one used. */
struct pci_dev *pci_dev;
@@ -521,7 +512,7 @@
ioaddr = pci_resource_start(pdev, 0);
#else
ioaddr = pci_resource_start(pdev, 1);
- ioaddr = (long) ioremap (ioaddr, pci_id_tbl[chip_idx].io_size);
+ ioaddr = (long) ioremap (ioaddr, netdev_io_size);
if (!ioaddr)
goto err_out_res;
#endif
@@ -535,7 +526,6 @@

np = dev->priv;
np->chip_id = chip_idx;
- np->drv_flags = pci_id_tbl[chip_idx].drv_flags;
np->pci_dev = pdev;
spin_lock_init(&np->lock);
tasklet_init(&np->rx_tasklet, rx_poll, (unsigned long)dev);
@@ -579,21 +569,28 @@
if (1) {
int phy, phy_idx = 0;
np->phys[0] = 1; /* Default setting */
- for (phy = 0; phy < 32 && phy_idx < MII_CNT; phy++) {
- int mii_status = mdio_read(dev, phy, 1);
+ mii_preamble_required++;
+ for (phy = 1; phy < 32 && phy_idx < MII_CNT; phy++) {
+ int mii_status = mdio_read(dev, phy, MII_BMSR);
if (mii_status != 0xffff && mii_status != 0x0000) {
np->phys[phy_idx++] = phy;
- np->advertising = mdio_read(dev, phy, 4);
+ np->advertising = mdio_read(dev, phy, MII_ADVERTISE);
+ if ((mii_status & 0x0040) == 0)
+ mii_preamble_required++;
printk(KERN_INFO "%s: MII PHY found at address %d, status "
"0x%4.4x advertising %4.4x.\n",
dev->name, phy, mii_status, np->advertising);
}
}
- np->mii_cnt = phy_idx;
- if (phy_idx == 0)
- printk(KERN_INFO "%s: No MII transceiver found!, ASIC status %x\n",
+ mii_preamble_required--;
+
+ if (phy_idx == 0) {
+ printk(KERN_INFO "%s: No MII transceiver found, aborting. ASIC status %x\n",
dev->name, readl(ioaddr + ASICCtrl));
+ goto err_out_unmap_rx;
+ }
}
+
/* Parse override configuration */
np->an_enable = 1;
if (card_idx < MAX_UNITS) {
@@ -700,11 +697,6 @@
The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
met by back-to-back 33Mhz PCI cycles. */
#define mdio_delay() readb(mdio_addr)
-
-/* Set iff a MII transceiver on any interface requires mdio preamble.
- This only set with older tranceivers, so the extra
- code size of a per-interface flag is not worthwhile. */
-static const char mii_preamble_required = 1;

enum mii_reg_bits {
MDIO_ShiftClk=0x0001, MDIO_Data=0x0002, MDIO_EnbOutput=0x0004,
\
 
 \ /
  Last update: 2005-03-22 13:29    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site