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Message-Id: <1309187108-12715-5-git-send-email-mason@myri.com>
Date: Mon, 27 Jun 2011 10:05:04 -0500
From: Jon Mason <mason@...i.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, Andrew Gallatin <gallatin@...i.com>
Subject: [PATCH 5/9] 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@...i.com>
---
drivers/net/myri10ge/myri10ge.c | 55 ++++++++++++++++++++++++
drivers/net/myri10ge/myri10ge_mcp_gen_header.h | 2 +
2 files changed, 57 insertions(+), 0 deletions(-)
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index 71461e5..83cbf2c 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)
diff --git a/drivers/net/myri10ge/myri10ge_mcp_gen_header.h b/drivers/net/myri10ge/myri10ge_mcp_gen_header.h
index 62a1cba..7ec4b86 100644
--- a/drivers/net/myri10ge/myri10ge_mcp_gen_header.h
+++ b/drivers/net/myri10ge/myri10ge_mcp_gen_header.h
@@ -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 */
};
--
1.7.5.4
--
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