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Subject[PATCH 1/10] cxgb3 - FW versioning
Date
From: Divy Le Ray <divy@chelsio.com>

Clean up FW version checking.
The supported FW version is now 3.1.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
---

drivers/net/cxgb3/cxgb3_main.c | 15 ++++++++-------
drivers/net/cxgb3/firmware_exports.h | 27 +++++++++++++++++++++++++++
drivers/net/cxgb3/t3_hw.c | 17 ++++++++++++-----
3 files changed, 47 insertions(+), 12 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 54c49ac..8044146 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -665,11 +665,8 @@ static int cxgb_up(struct adapter *adap)

if (!(adap->flags & FULL_INIT_DONE)) {
err = t3_check_fw_version(adap);
- if (err) {
- dev_err(&adap->pdev->dev,
- "adapter FW is not compatible with driver\n");
+ if (err)
goto out;
- }

err = init_dummy_netdevs(adap);
if (err)
@@ -1002,10 +999,14 @@ static void get_drvinfo(struct net_devic
strcpy(info->bus_info, pci_name(adapter->pdev));
if (!fw_vers)
strcpy(info->fw_version, "N/A");
- else
+ else {
snprintf(info->fw_version, sizeof(info->fw_version),
- "%s %u.%u", (fw_vers >> 24) ? "T" : "N",
- (fw_vers >> 12) & 0xfff, fw_vers & 0xfff);
+ "%s %u.%u.%u",
+ G_FW_VERSION_TYPE(fw_vers) ? "T" : "N",
+ G_FW_VERSION_MAJOR(fw_vers),
+ G_FW_VERSION_MINOR(fw_vers),
+ G_FW_VERSION_MICRO(fw_vers));
+ }
}

static void get_strings(struct net_device *dev, u32 stringset, u8 * data)
diff --git a/drivers/net/cxgb3/firmware_exports.h b/drivers/net/cxgb3/firmware_exports.h
index 3565f48..eea7d89 100644
--- a/drivers/net/cxgb3/firmware_exports.h
+++ b/drivers/net/cxgb3/firmware_exports.h
@@ -141,4 +141,31 @@
#define FW_WRC_NUM \
(65536 + FW_TUNNEL_NUM + FW_CTRL_NUM + FW_RI_NUM + FW_RX_PKT_NUM)

+/*
+ * FW type and version.
+ */
+#define S_FW_VERSION_TYPE 28
+#define M_FW_VERSION_TYPE 0xF
+#define V_FW_VERSION_TYPE(x) ((x) << S_FW_VERSION_TYPE)
+#define G_FW_VERSION_TYPE(x) \
+ (((x) >> S_FW_VERSION_TYPE) & M_FW_VERSION_TYPE)
+
+#define S_FW_VERSION_MAJOR 16
+#define M_FW_VERSION_MAJOR 0xFFF
+#define V_FW_VERSION_MAJOR(x) ((x) << S_FW_VERSION_MAJOR)
+#define G_FW_VERSION_MAJOR(x) \
+ (((x) >> S_FW_VERSION_MAJOR) & M_FW_VERSION_MAJOR)
+
+#define S_FW_VERSION_MINOR 8
+#define M_FW_VERSION_MINOR 0xFF
+#define V_FW_VERSION_MINOR(x) ((x) << S_FW_VERSION_MINOR)
+#define G_FW_VERSION_MINOR(x) \
+ (((x) >> S_FW_VERSION_MINOR) & M_FW_VERSION_MINOR)
+
+#define S_FW_VERSION_MICRO 0
+#define M_FW_VERSION_MICRO 0xFF
+#define V_FW_VERSION_MICRO(x) ((x) << S_FW_VERSION_MICRO)
+#define G_FW_VERSION_MICRO(x) \
+ (((x) >> S_FW_VERSION_MICRO) & M_FW_VERSION_MICRO)
+
#endif /* _FIRMWARE_EXPORTS_H_ */
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index a4e2e57..4545acb 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -826,6 +826,11 @@ static int t3_write_flash(struct adapter
return 0;
}

+enum fw_version_type {
+ FW_VERSION_N3,
+ FW_VERSION_T3
+};
+
/**
* t3_get_fw_version - read the firmware version
* @adapter: the adapter
@@ -849,19 +854,21 @@ int t3_check_fw_version(struct adapter *
{
int ret;
u32 vers;
+ unsigned int type, major, minor;

ret = t3_get_fw_version(adapter, &vers);
if (ret)
return ret;

- /* Minor 0xfff means the FW is an internal development-only version. */
- if ((vers & 0xfff) == 0xfff)
- return 0;
+ type = G_FW_VERSION_TYPE(vers);
+ major = G_FW_VERSION_MAJOR(vers);
+ minor = G_FW_VERSION_MINOR(vers);

- if (vers == 0x1002009)
+ if (type == FW_VERSION_T3 && major == 3 && minor == 1)
return 0;

- CH_ERR(adapter, "found wrong FW version, driver needs version 2.9\n");
+ CH_ERR(adapter, "found wrong FW version(%u.%u), "
+ "driver needs version 3.1\n", major, minor);
return -EINVAL;
}

-
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