From: "Tom \"spot\" Callaway" <tcallawa@xxxxxxxxxx>
Date: Sat, 14 Apr 2007 19:54:10 -0500
> This patch is already in my tree. The kernel base is
> patch-2.6.21-rc6-git5.
>
> I'm not netbooting these kernels either. Straight boot from firmware,
> system is serial connected through a screen (which is where the logs are
> coming from).
>
> Additional thoughts? :)
It's never easy :)
Let's see what's in the sense buffer, boot with the following
patch and "esp.esp_bug=2047" on the boot command line.
Thanks!
diff --git a/drivers/scsi/esp.c b/drivers/scsi/esp.c
index b500961..dc25b1e 100644
--- a/drivers/scsi/esp.c
+++ b/drivers/scsi/esp.c
@@ -44,6 +44,7 @@ static u32 esp_debug;
#define ESP_DEBUG_DATASTART 0x00000080
#define ESP_DEBUG_DATADONE 0x00000100
#define ESP_DEBUG_RECONNECT 0x00000200
+#define ESP_DEBUG_SENSE 0x00000400
#define esp_log_intr(f, a...) \
do { if (esp_debug & ESP_DEBUG_INTR) \
@@ -90,6 +91,11 @@ do { if (esp_debug & ESP_DEBUG_RECONNECT) \
printk(f, ## a); \
} while (0)
+#define esp_log_sense(f, a...) \
+do { if (esp_debug & ESP_DEBUG_SENSE) \
+ printk(f, ## a); \
+} while (0)
+
#define esp_read8(REG) \
sbus_readb(esp->regs + (REG))
#define dma_read32(REG) \
@@ -1103,6 +1109,23 @@ static void esp_cmd_is_done(struct esp *esp, struct esp_cmd_entry *ent,
ent->eh_done = NULL;
}
+ if (cmd->cmnd[0] == REQUEST_SENSE) {
+ unsigned char *buf;
+ int i;
+
+ if (cmd->use_sg == 0)
+ buf = cmd->request_buffer;
+ else {
+ struct scatterlist *sg = cmd->request_buffer;
+
+ buf = page_address(sg[0].page) + sg[0].offset;
+ }
+
+ esp_log_sense("ESP: SENSE [ ");
+ for (i = 0; i < 18; i++)
+ esp_log_sense("%02x ", buf[i]);
+ esp_log_sense("]\n");
+ }
cmd->scsi_done(cmd);
list_del(&ent->list);
@@ -3225,6 +3248,7 @@ MODULE_PARM_DESC(esp_debug,
" 0x00000080 Log data start\n"
" 0x00000100 Log data done\n"
" 0x00000200 Log reconnects\n"
+" 0x00000400 Log sense data\n"
);
module_init(esp_init);
-
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