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Date: Wed, 4 Feb 2015 18:19:35 +0530
From: Hariprasad Shenai <hariprasad@...lsio.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, ben@...adent.org.uk, leedom@...lsio.com,
anish@...lsio.com, nirranjan@...lsio.com, kumaras@...lsio.com,
Hariprasad Shenai <hariprasad@...lsio.com>
Subject: [PATCH net-next 2/3] cxgb4: Add support in cxgb4 to get expansion rom version via ethtool
Add support to get option/expansion rom version flashed in the adapter via
ethtool getdrvinfo function.
Signed-off-by: Hariprasad Shenai <hariprasad@...lsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 1 +
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 9 +++++
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 37 +++++++++++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h | 8 +++++
4 files changed, 55 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 55019c9..63231bf 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -1120,6 +1120,7 @@ int t4_fw_upgrade(struct adapter *adap, unsigned int mbox,
unsigned int t4_flash_cfg_addr(struct adapter *adapter);
int t4_get_fw_version(struct adapter *adapter, u32 *vers);
int t4_get_tp_version(struct adapter *adapter, u32 *vers);
+int t4_get_exprom_version(struct adapter *adapter, u32 *vers);
int t4_prep_fw(struct adapter *adap, struct fw_info *fw_info,
const u8 *fw_data, unsigned int fw_size,
struct fw_hdr *card_fw, enum dev_state state, int *reset);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 041742b..16639c7 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -1419,6 +1419,7 @@ static int get_eeprom_len(struct net_device *dev)
static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
struct adapter *adapter = netdev2adap(dev);
+ u32 exprom_vers;
strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
strlcpy(info->version, DRV_VERSION, sizeof(info->version));
@@ -1436,6 +1437,14 @@ static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
FW_HDR_FW_VER_MINOR_G(adapter->params.tp_vers),
FW_HDR_FW_VER_MICRO_G(adapter->params.tp_vers),
FW_HDR_FW_VER_BUILD_G(adapter->params.tp_vers));
+
+ if (!t4_get_exprom_version(adapter, &exprom_vers))
+ snprintf(info->erom_version, sizeof(info->erom_version),
+ "%u.%u.%u.%u",
+ FW_HDR_FW_VER_MAJOR_G(exprom_vers),
+ FW_HDR_FW_VER_MINOR_G(exprom_vers),
+ FW_HDR_FW_VER_MICRO_G(exprom_vers),
+ FW_HDR_FW_VER_BUILD_G(exprom_vers));
}
static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index ea16c62..ae69796 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -948,6 +948,43 @@ int t4_get_tp_version(struct adapter *adapter, u32 *vers)
1, vers, 0);
}
+/**
+ * t4_get_exprom_version - return the Expansion ROM version (if any)
+ * @adapter: the adapter
+ * @vers: where to place the version
+ *
+ * Reads the Expansion ROM header from FLASH and returns the version
+ * number (if present) through the @vers return value pointer. We return
+ * this in the Firmware Version Format since it's convenient. Return
+ * 0 on success, -ENOENT if no Expansion ROM is present.
+ */
+int t4_get_exprom_version(struct adapter *adap, u32 *vers)
+{
+ struct exprom_header {
+ unsigned char hdr_arr[16]; /* must start with 0x55aa */
+ unsigned char hdr_ver[4]; /* Expansion ROM version */
+ } *hdr;
+ u32 exprom_header_buf[DIV_ROUND_UP(sizeof(struct exprom_header),
+ sizeof(u32))];
+ int ret;
+
+ ret = t4_read_flash(adap, FLASH_EXP_ROM_START,
+ ARRAY_SIZE(exprom_header_buf), exprom_header_buf,
+ 0);
+ if (ret)
+ return ret;
+
+ hdr = (struct exprom_header *)exprom_header_buf;
+ if (hdr->hdr_arr[0] != 0x55 || hdr->hdr_arr[1] != 0xaa)
+ return -ENOENT;
+
+ *vers = (FW_HDR_FW_VER_MAJOR_V(hdr->hdr_ver[0]) |
+ FW_HDR_FW_VER_MINOR_V(hdr->hdr_ver[1]) |
+ FW_HDR_FW_VER_MICRO_V(hdr->hdr_ver[2]) |
+ FW_HDR_FW_VER_BUILD_V(hdr->hdr_ver[3]));
+ return 0;
+}
+
/* Is the given firmware API compatible with the one the driver was compiled
* with?
*/
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
index 1e72cda..c009627 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
@@ -3012,21 +3012,29 @@ enum fw_hdr_chip {
#define FW_HDR_FW_VER_MAJOR_S 24
#define FW_HDR_FW_VER_MAJOR_M 0xff
+#define FW_HDR_FW_VER_MAJOR_V(x) \
+ ((x) << FW_HDR_FW_VER_MAJOR_S)
#define FW_HDR_FW_VER_MAJOR_G(x) \
(((x) >> FW_HDR_FW_VER_MAJOR_S) & FW_HDR_FW_VER_MAJOR_M)
#define FW_HDR_FW_VER_MINOR_S 16
#define FW_HDR_FW_VER_MINOR_M 0xff
+#define FW_HDR_FW_VER_MINOR_V(x) \
+ ((x) << FW_HDR_FW_VER_MINOR_S)
#define FW_HDR_FW_VER_MINOR_G(x) \
(((x) >> FW_HDR_FW_VER_MINOR_S) & FW_HDR_FW_VER_MINOR_M)
#define FW_HDR_FW_VER_MICRO_S 8
#define FW_HDR_FW_VER_MICRO_M 0xff
+#define FW_HDR_FW_VER_MICRO_V(x) \
+ ((x) << FW_HDR_FW_VER_MICRO_S)
#define FW_HDR_FW_VER_MICRO_G(x) \
(((x) >> FW_HDR_FW_VER_MICRO_S) & FW_HDR_FW_VER_MICRO_M)
#define FW_HDR_FW_VER_BUILD_S 0
#define FW_HDR_FW_VER_BUILD_M 0xff
+#define FW_HDR_FW_VER_BUILD_V(x) \
+ ((x) << FW_HDR_FW_VER_BUILD_S)
#define FW_HDR_FW_VER_BUILD_G(x) \
(((x) >> FW_HDR_FW_VER_BUILD_S) & FW_HDR_FW_VER_BUILD_M)
--
1.7.1
--
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