X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fnet%2Fmlx4%2Ffw.c;h=81fc546a1c44011a4c47bbcbd7ccc6f899dbbe48;hb=0e6e74162164d908edf7889ac66dca09e7505745;hp=c427173136639565989104a9fdb997749a0b4d1e;hpb=a9deecba19b8f384d97f82c75379da48bccb2588;p=linux-2.6

diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c
index c427173136..81fc546a1c 100644
--- a/drivers/net/mlx4/fw.c
+++ b/drivers/net/mlx4/fw.c
@@ -37,6 +37,10 @@
 #include "fw.h"
 #include "icm.h"
 
+enum {
+	MLX4_COMMAND_INTERFACE_REV	= 2,
+};
+
 extern void __buggy_use_of_MLX4_GET(void);
 extern void __buggy_use_of_MLX4_PUT(void);
 
@@ -90,7 +94,7 @@ static void dump_dev_cap_flags(struct mlx4_dev *dev, u32 flags)
 	int i;
 
 	mlx4_dbg(dev, "DEV_CAP flags:\n");
-	for (i = 0; i < 32; ++i)
+	for (i = 0; i < ARRAY_SIZE(fname); ++i)
 		if (fname[i] && (flags & (1 << i)))
 			mlx4_dbg(dev, "    %s\n", fname[i]);
 }
@@ -452,10 +456,12 @@ int mlx4_QUERY_FW(struct mlx4_dev *dev)
 	u32 *outbox;
 	int err = 0;
 	u64 fw_ver;
+	u16 cmd_if_rev;
 	u8 lg;
 
 #define QUERY_FW_OUT_SIZE             0x100
 #define QUERY_FW_VER_OFFSET            0x00
+#define QUERY_FW_CMD_IF_REV_OFFSET     0x0a
 #define QUERY_FW_MAX_CMD_OFFSET        0x0f
 #define QUERY_FW_ERR_START_OFFSET      0x30
 #define QUERY_FW_ERR_SIZE_OFFSET       0x38
@@ -477,21 +483,36 @@ int mlx4_QUERY_FW(struct mlx4_dev *dev)
 
 	MLX4_GET(fw_ver, outbox, QUERY_FW_VER_OFFSET);
 	/*
-	 * FW subminor version is at more signifant bits than minor
+	 * FW subminor version is at more significant bits than minor
 	 * version, so swap here.
 	 */
 	dev->caps.fw_ver = (fw_ver & 0xffff00000000ull) |
 		((fw_ver & 0xffff0000ull) >> 16) |
 		((fw_ver & 0x0000ffffull) << 16);
 
+	MLX4_GET(cmd_if_rev, outbox, QUERY_FW_CMD_IF_REV_OFFSET);
+	if (cmd_if_rev != MLX4_COMMAND_INTERFACE_REV) {
+		mlx4_err(dev, "Installed FW has unsupported "
+			 "command interface revision %d.\n",
+			 cmd_if_rev);
+		mlx4_err(dev, "(Installed FW version is %d.%d.%03d)\n",
+			 (int) (dev->caps.fw_ver >> 32),
+			 (int) (dev->caps.fw_ver >> 16) & 0xffff,
+			 (int) dev->caps.fw_ver & 0xffff);
+		mlx4_err(dev, "This driver version supports only revision %d.\n",
+			 MLX4_COMMAND_INTERFACE_REV);
+		err = -ENODEV;
+		goto out;
+	}
+
 	MLX4_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
 	cmd->max_cmds = 1 << lg;
 
-	mlx4_dbg(dev, "FW version %d.%d.%03d, max commands %d\n",
+	mlx4_dbg(dev, "FW version %d.%d.%03d (cmd intf rev %d), max commands %d\n",
 		 (int) (dev->caps.fw_ver >> 32),
 		 (int) (dev->caps.fw_ver >> 16) & 0xffff,
 		 (int) dev->caps.fw_ver & 0xffff,
-		 cmd->max_cmds);
+		 cmd_if_rev, cmd->max_cmds);
 
 	MLX4_GET(fw->catas_offset, outbox, QUERY_FW_ERR_START_OFFSET);
 	MLX4_GET(fw->catas_size,   outbox, QUERY_FW_ERR_SIZE_OFFSET);