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myri10ge: add support for set_phys_id

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Add myri10ge driver support for the ethtool identify operation.
NOTE: Rather than blinking (which is the normal case), when identify is
used, the yellow LED turns solid.

Signed-off-by: Jon Mason <mason@myri.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jon Mason 2011-06-27 05:05:04 +00:00 committed by David S. Miller
parent 4b47638ab2
commit 5dcd846712
2 changed files with 57 additions and 0 deletions
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55
drivers/net/myri10ge/myri10ge.c
View File

@ -1911,6 +1911,60 @@ static u32 myri10ge_get_msglevel(struct net_device *netdev)
return mgp->msg_enable;
}
/*
* Use a low-level command to change the LED behavior. Rather than
* blinking (which is the normal case), when identify is used, the
* yellow LED turns solid.
*/
static int myri10ge_led(struct myri10ge_priv *mgp, int on)
{
struct mcp_gen_header *hdr;
struct device *dev = &mgp->pdev->dev;
size_t hdr_off, pattern_off, hdr_len;
u32 pattern = 0xfffffffe;
/* find running firmware header */
hdr_off = swab32(readl(mgp->sram + MCP_HEADER_PTR_OFFSET));
if ((hdr_off & 3) || hdr_off + sizeof(*hdr) > mgp->sram_size) {
dev_err(dev, "Running firmware has bad header offset (%d)\n",
(int)hdr_off);
return -EIO;
}
hdr_len = swab32(readl(mgp->sram + hdr_off +
offsetof(struct mcp_gen_header, header_length)));
pattern_off = hdr_off + offsetof(struct mcp_gen_header, led_pattern);
if (pattern_off >= (hdr_len + hdr_off)) {
dev_info(dev, "Firmware does not support LED identification\n");
return -EINVAL;
}
if (!on)
pattern = swab32(readl(mgp->sram + pattern_off + 4));
writel(htonl(pattern), mgp->sram + pattern_off);
return 0;
}
static int
myri10ge_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
{
struct myri10ge_priv *mgp = netdev_priv(netdev);
int rc;
switch (state) {
case ETHTOOL_ID_ACTIVE:
rc = myri10ge_led(mgp, 1);
break;
case ETHTOOL_ID_INACTIVE:
rc = myri10ge_led(mgp, 0);
break;
default:
rc = -EINVAL;
}
return rc;
}
static const struct ethtool_ops myri10ge_ethtool_ops = {
.get_settings = myri10ge_get_settings,
.get_drvinfo = myri10ge_get_drvinfo,
@ -1925,6 +1979,7 @@ static const struct ethtool_ops myri10ge_ethtool_ops = {
.get_ethtool_stats = myri10ge_get_ethtool_stats,
.set_msglevel = myri10ge_set_msglevel,
.get_msglevel = myri10ge_get_msglevel,
.set_phys_id = myri10ge_phys_id,
};
static int myri10ge_allocate_rings(struct myri10ge_slice_state *ss)

2
drivers/net/myri10ge/myri10ge_mcp_gen_header.h
View File

@ -45,6 +45,8 @@ struct mcp_gen_header {
unsigned bss_addr; /* start of bss */
unsigned features;
unsigned ee_hdr_addr;
unsigned led_pattern;
unsigned led_pattern_dflt;
/* 8 */
};