[SCSI] qla2xxx: T10 DIF support added.

Signed-off-by: Duane Grigsby <duane.grigsby@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 58 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 89bfc119010b..2afc8a362f2c 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -1663,4 +1663,62 @@ qla2x00_dump_buffer(uint8_t * b, uint32_t size)
                 printk("\n");
 }
 
+void
+qla2x00_dump_buffer_zipped(uint8_t *b, uint32_t size)
+{
+        uint32_t cnt;
+        uint8_t c;
+        uint8_t  last16[16], cur16[16];
+        uint32_t lc = 0, num_same16 = 0, j;
+
+        printk(KERN_DEBUG " 0   1   2   3   4   5   6   7   8   9  "
+            "Ah  Bh  Ch  Dh  Eh  Fh\n");
+        printk(KERN_DEBUG "----------------------------------------"
+            "----------------------\n");
+
+        for (cnt = 0; cnt < size;) {
+                c = *b++;
 
+                cur16[lc++] = c;
+
+                cnt++;
+                if (cnt % 16)
+                        continue;
+
+                /* We have 16 now */
+                lc = 0;
+                if (num_same16 == 0) {
+                        memcpy(last16, cur16, 16);
+                        num_same16++;
+                        continue;
+                }
+                if (memcmp(cur16, last16, 16) == 0) {
+                        num_same16++;
+                        continue;
+                }
+                for (j = 0; j < 16; j++)
+                        printk(KERN_DEBUG "%02x  ", (uint32_t)last16[j]);
+                printk(KERN_DEBUG "\n");
+
+                if (num_same16 > 1)
+                        printk(KERN_DEBUG "> prev pattern repeats (%u)"
+                            "more times\n", num_same16-1);
+                memcpy(last16, cur16, 16);
+                num_same16 = 1;
+        }
+
+        if (num_same16) {
+                for (j = 0; j < 16; j++)
+                        printk(KERN_DEBUG "%02x  ", (uint32_t)last16[j]);
+                printk(KERN_DEBUG "\n");
+
+                if (num_same16 > 1)
+                        printk(KERN_DEBUG "> prev pattern repeats (%u)"
+                            "more times\n", num_same16-1);
+        }
+        if (lc) {
+                for (j = 0; j < lc; j++)
+                        printk(KERN_DEBUG "%02x  ", (uint32_t)cur16[j]);
+                printk(KERN_DEBUG "\n");
+        }
+}