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authorEd L. Cashin <ecashin@coraid.com>2006-09-20 14:36:49 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-10-18 12:53:50 -0700
commit19bf26353c50bc2be375109ec73f2f0bbd616ed1 (patch)
tree5bcdf714d67d573885d2f42a7c0a79586de77c25 /drivers/block/aoe/aoe.h
parente407a7f6cd143b3ab4eb3d7e1cf882e96b710eb5 (diff)
downloadblackbird-op-linux-19bf26353c50bc2be375109ec73f2f0bbd616ed1.tar.gz
blackbird-op-linux-19bf26353c50bc2be375109ec73f2f0bbd616ed1.zip
aoe: jumbo frame support 1 of 2
Add support for jumbo ethernet frames. (This patch depends on patch 7 to follow.) Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/block/aoe/aoe.h')
-rw-r--r--drivers/block/aoe/aoe.h11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index fa2d804b2665..1cec19986c40 100644
--- a/drivers/block/aoe/aoe.h
+++ b/drivers/block/aoe/aoe.h
@@ -65,7 +65,7 @@ struct aoe_atahdr {
struct aoe_cfghdr {
__be16 bufcnt;
__be16 fwver;
- unsigned char res;
+ unsigned char scnt;
unsigned char aoeccmd;
unsigned char cslen[2];
};
@@ -78,12 +78,13 @@ enum {
DEVFL_GDALLOC = (1<<4), /* need to alloc gendisk */
DEVFL_PAUSE = (1<<5),
DEVFL_NEWSIZE = (1<<6), /* need to update dev size in block layer */
+ DEVFL_MAXBCNT = (1<<7), /* d->maxbcnt is not changeable */
BUFFL_FAIL = 1,
};
enum {
- MAXATADATA = 1024,
+ DEFAULTBCNT = 2 * 512, /* 2 sectors */
NPERSHELF = 16, /* number of slots per shelf address */
FREETAG = -1,
MIN_BUFS = 8,
@@ -107,6 +108,8 @@ struct frame {
ulong waited;
struct buf *buf;
char *bufaddr;
+ ulong bcnt;
+ sector_t lba;
struct sk_buff *skb;
};
@@ -120,6 +123,7 @@ struct aoedev {
ulong nopen; /* (bd_openers isn't available without sleeping) */
ulong rttavg; /* round trip average of requests/responses */
u16 fw_ver; /* version of blade's firmware */
+ u16 maxbcnt;
struct work_struct work;/* disk create work struct */
struct gendisk *gd;
request_queue_t blkq;
@@ -134,7 +138,8 @@ struct aoedev {
struct list_head bufq; /* queue of bios to work on */
struct buf *inprocess; /* the one we're currently working on */
ulong lasttag; /* last tag sent */
- ulong nframes; /* number of frames below */
+ ushort lostjumbo;
+ ushort nframes; /* number of frames below */
struct frame *frames;
};
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