diff options
| author | Ian Campbell <Ian.Campbell@citrix.com> | 2011-10-19 23:01:48 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-10-21 02:52:53 -0400 |
| commit | 6a39a16a5ac07a156de91cfb9422bde574e59fa6 (patch) | |
| tree | cccf1f292391f9af858837fab03a40632f3144fc | |
| parent | a0006a86cb19543f126bb2ee3d37baef82080763 (diff) | |
| download | linux-6a39a16a5ac07a156de91cfb9422bde574e59fa6.tar.bz2 | |
cxgbi: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Mike Christie <michaelc@cs.wisc.edu>
Cc: James Bottomley <James.Bottomley@suse.de>
Cc: Karen Xie <kxie@chelsio.com>
Cc: linux-scsi@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/scsi/cxgbi/libcxgbi.c | 28 | ||||
| -rw-r--r-- | drivers/scsi/cxgbi/libcxgbi.h | 2 |
2 files changed, 16 insertions, 14 deletions
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c index be69da38ccaa..1c1329bc77c7 100644 --- a/drivers/scsi/cxgbi/libcxgbi.c +++ b/drivers/scsi/cxgbi/libcxgbi.c @@ -1787,7 +1787,7 @@ static int sgl_seek_offset(struct scatterlist *sgl, unsigned int sgcnt, } static int sgl_read_to_frags(struct scatterlist *sg, unsigned int sgoffset, - unsigned int dlen, skb_frag_t *frags, + unsigned int dlen, struct page_frag *frags, int frag_max) { unsigned int datalen = dlen; @@ -1814,8 +1814,8 @@ static int sgl_read_to_frags(struct scatterlist *sg, unsigned int sgoffset, copy = min(datalen, sglen); if (i && page == frags[i - 1].page && sgoffset + sg->offset == - frags[i - 1].page_offset + skb_frag_size(&frags[i - 1])) { - skb_frag_size_add(&frags[i - 1], copy); + frags[i - 1].offset + frags[i - 1].size) { + frags[i - 1].size += copy; } else { if (i >= frag_max) { pr_warn("too many pages %u, dlen %u.\n", @@ -1824,8 +1824,8 @@ static int sgl_read_to_frags(struct scatterlist *sg, unsigned int sgoffset, } frags[i].page = page; - frags[i].page_offset = sg->offset + sgoffset; - skb_frag_size_set(&frags[i], copy); + frags[i].offset = sg->offset + sgoffset; + frags[i].size = copy; i++; } datalen -= copy; @@ -1944,15 +1944,15 @@ int cxgbi_conn_init_pdu(struct iscsi_task *task, unsigned int offset, if (tdata->nr_frags > MAX_SKB_FRAGS || (padlen && tdata->nr_frags == MAX_SKB_FRAGS)) { char *dst = skb->data + task->hdr_len; - skb_frag_t *frag = tdata->frags; + struct page_frag *frag = tdata->frags; /* data fits in the skb's headroom */ for (i = 0; i < tdata->nr_frags; i++, frag++) { char *src = kmap_atomic(frag->page, KM_SOFTIRQ0); - memcpy(dst, src+frag->page_offset, skb_frag_size(frag)); - dst += skb_frag_size(frag); + memcpy(dst, src+frag->offset, frag->size); + dst += frag->size; kunmap_atomic(src, KM_SOFTIRQ0); } if (padlen) { @@ -1962,11 +1962,13 @@ int cxgbi_conn_init_pdu(struct iscsi_task *task, unsigned int offset, skb_put(skb, count + padlen); } else { /* data fit into frag_list */ - for (i = 0; i < tdata->nr_frags; i++) - get_page(tdata->frags[i].page); - - memcpy(skb_shinfo(skb)->frags, tdata->frags, - sizeof(skb_frag_t) * tdata->nr_frags); + for (i = 0; i < tdata->nr_frags; i++) { + __skb_fill_page_desc(skb, i, + tdata->frags[i].page, + tdata->frags[i].offset, + tdata->frags[i].size); + skb_frag_ref(skb, i); + } skb_shinfo(skb)->nr_frags = tdata->nr_frags; skb->len += count; skb->data_len += count; diff --git a/drivers/scsi/cxgbi/libcxgbi.h b/drivers/scsi/cxgbi/libcxgbi.h index 9267844519c9..3a25b1187c10 100644 --- a/drivers/scsi/cxgbi/libcxgbi.h +++ b/drivers/scsi/cxgbi/libcxgbi.h @@ -574,7 +574,7 @@ struct cxgbi_endpoint { #define MAX_PDU_FRAGS ((ULP2_MAX_PDU_PAYLOAD + 512 - 1) / 512) struct cxgbi_task_data { unsigned short nr_frags; - skb_frag_t frags[MAX_PDU_FRAGS]; + struct page_frag frags[MAX_PDU_FRAGS]; struct sk_buff *skb; unsigned int offset; unsigned int count; |