diff options
| author | Jon Mason <mason@myri.com> | 2011-06-27 05:05:04 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-06-29 06:02:05 -0700 |
| commit | 5dcd846712046d68020e9dfddd7ca491dc138f0d (patch) | |
| tree | d0402842baa9dd00e8d37aa02f1abf6e30aa2fbe /drivers/net/myri10ge/myri10ge.c | |
| parent | 4b47638ab25d90faf4e5499aecd8812f247181fd (diff) | |
myri10ge: add support for set_phys_id
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>
Diffstat (limited to 'drivers/net/myri10ge/myri10ge.c')
| -rw-r--r-- | drivers/net/myri10ge/myri10ge.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c index 57bb7f782c3..a0d4c619e85 100644 --- a/drivers/net/myri10ge/myri10ge.c +++ b/drivers/net/myri10ge/myri10ge.c @@ -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) |