From 1af6f60368b3f5be6a89350ccd23e218120fd3d1 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Mon, 24 Nov 2014 15:37:22 +0100
Subject: [PATCH] esp_scsi: debug event and command
Add new debug definitions for event and command logging.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/scsi/esp_scsi.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c
index d85f2392c6ae6..800ff3ea501d6 100644
--- a/drivers/scsi/esp_scsi.c
+++ b/drivers/scsi/esp_scsi.c
@@ -49,6 +49,8 @@ static u32 esp_debug;
#define ESP_DEBUG_DATADONE 0x00000100
#define ESP_DEBUG_RECONNECT 0x00000200
#define ESP_DEBUG_AUTOSENSE 0x00000400
+#define ESP_DEBUG_EVENT 0x00000800
+#define ESP_DEBUG_COMMAND 0x00001000
#define esp_log_intr(f, a...) \
do { if (esp_debug & ESP_DEBUG_INTR) \
@@ -100,6 +102,16 @@ do { if (esp_debug & ESP_DEBUG_AUTOSENSE) \
shost_printk(KERN_DEBUG, esp->host, f, ## a); \
} while (0)
+#define esp_log_event(f, a...) \
+do { if (esp_debug & ESP_DEBUG_EVENT) \
+ shost_printk(KERN_DEBUG, esp->host, f, ## a); \
+} while (0)
+
+#define esp_log_command(f, a...) \
+do { if (esp_debug & ESP_DEBUG_COMMAND) \
+ shost_printk(KERN_DEBUG, esp->host, f, ## a); \
+} while (0)
+
#define esp_read8(REG) esp->ops->esp_read8(esp, REG)
#define esp_write8(VAL,REG) esp->ops->esp_write8(esp, VAL, REG)
@@ -126,6 +138,7 @@ void scsi_esp_cmd(struct esp *esp, u8 val)
esp->esp_event_cur = (idx + 1) & (ESP_EVENT_LOG_SZ - 1);
+ esp_log_command("cmd[%02x]\n", val);
esp_write8(val, ESP_CMD);
}
EXPORT_SYMBOL(scsi_esp_cmd);
@@ -1638,6 +1651,8 @@ static int esp_process_event(struct esp *esp)
again:
write = 0;
+ esp_log_event("process event %d phase %x\n",
+ esp->event, esp->sreg & ESP_STAT_PMASK);
switch (esp->event) {
case ESP_EVENT_CHECK_PHASE:
switch (esp->sreg & ESP_STAT_PMASK) {
--
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