diff options
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) |