[SCSI] cxgbi: get rid of gl_skb in cxgbi_ddp_info
Remove gl_skb from cxgbi_ddp_info as it is only used by cxgb3i. Signed-off-by: Karen Xie <kxie@chelsio.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
kxie@chelsio.com
James Bottomley
parent
c343a01cca
commit
b8ce8b59b8
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@ -1108,10 +1108,11 @@ static int ddp_set_map(struct cxgbi_sock *csk, struct cxgbi_pagepod_hdr *hdr,
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csk, idx, npods, gl);
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for (i = 0; i < npods; i++, idx++, pm_addr += PPOD_SIZE) {
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struct sk_buff *skb = ddp->gl_skb[idx];
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struct sk_buff *skb = alloc_wr(sizeof(struct ulp_mem_io) +
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PPOD_SIZE, 0, GFP_ATOMIC);
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/* hold on to the skb until we clear the ddp mapping */
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skb_get(skb);
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if (!skb)
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return -ENOMEM;
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ulp_mem_io_set_hdr(skb, pm_addr);
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cxgbi_ddp_ppod_set((struct cxgbi_pagepod *)(skb->head +
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@ -1136,56 +1137,20 @@ static void ddp_clear_map(struct cxgbi_hba *chba, unsigned int tag,
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cdev, idx, npods, tag);
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for (i = 0; i < npods; i++, idx++, pm_addr += PPOD_SIZE) {
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struct sk_buff *skb = ddp->gl_skb[idx];
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struct sk_buff *skb = alloc_wr(sizeof(struct ulp_mem_io) +
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PPOD_SIZE, 0, GFP_ATOMIC);
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if (!skb) {
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pr_err("tag 0x%x, 0x%x, %d/%u, skb NULL.\n",
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pr_err("tag 0x%x, 0x%x, %d/%u, skb OOM.\n",
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tag, idx, i, npods);
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continue;
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}
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ddp->gl_skb[idx] = NULL;
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memset(skb->head + sizeof(struct ulp_mem_io), 0, PPOD_SIZE);
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ulp_mem_io_set_hdr(skb, pm_addr);
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skb->priority = CPL_PRIORITY_CONTROL;
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cxgb3_ofld_send(cdev->lldev, skb);
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}
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}
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static void ddp_free_gl_skb(struct cxgbi_ddp_info *ddp, int idx, int cnt)
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{
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int i;
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log_debug(1 << CXGBI_DBG_DDP,
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"ddp 0x%p, idx %d, cnt %d.\n", ddp, idx, cnt);
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for (i = 0; i < cnt; i++, idx++)
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if (ddp->gl_skb[idx]) {
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kfree_skb(ddp->gl_skb[idx]);
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ddp->gl_skb[idx] = NULL;
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}
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}
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static int ddp_alloc_gl_skb(struct cxgbi_ddp_info *ddp, int idx,
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int cnt, gfp_t gfp)
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{
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int i;
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log_debug(1 << CXGBI_DBG_DDP,
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"ddp 0x%p, idx %d, cnt %d.\n", ddp, idx, cnt);
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for (i = 0; i < cnt; i++) {
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struct sk_buff *skb = alloc_wr(sizeof(struct ulp_mem_io) +
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PPOD_SIZE, 0, gfp);
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if (skb)
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ddp->gl_skb[idx + i] = skb;
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else {
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ddp_free_gl_skb(ddp, idx, i);
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return -ENOMEM;
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}
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}
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return 0;
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}
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static int ddp_setup_conn_pgidx(struct cxgbi_sock *csk,
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unsigned int tid, int pg_idx, bool reply)
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{
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@ -1316,8 +1281,6 @@ static int cxgb3i_ddp_init(struct cxgbi_device *cdev)
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}
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tdev->ulp_iscsi = ddp;
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cdev->csk_ddp_free_gl_skb = ddp_free_gl_skb;
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cdev->csk_ddp_alloc_gl_skb = ddp_alloc_gl_skb;
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cdev->csk_ddp_setup_digest = ddp_setup_conn_digest;
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cdev->csk_ddp_setup_pgidx = ddp_setup_conn_pgidx;
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cdev->csk_ddp_set = ddp_set_map;
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@ -1425,8 +1425,6 @@ static int cxgb4i_ddp_init(struct cxgbi_device *cdev)
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cxgbi_ddp_page_size_factor(pgsz_factor);
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cxgb4_iscsi_init(lldi->ports[0], tagmask, pgsz_factor);
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cdev->csk_ddp_free_gl_skb = NULL;
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cdev->csk_ddp_alloc_gl_skb = NULL;
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cdev->csk_ddp_setup_digest = ddp_setup_conn_digest;
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cdev->csk_ddp_setup_pgidx = ddp_setup_conn_pgidx;
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cdev->csk_ddp_set = ddp_set_map;
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@ -1277,12 +1277,6 @@ static int ddp_tag_reserve(struct cxgbi_sock *csk, unsigned int tid,
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return idx;
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}
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if (cdev->csk_ddp_alloc_gl_skb) {
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err = cdev->csk_ddp_alloc_gl_skb(ddp, idx, npods, gfp);
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if (err < 0)
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goto unmark_entries;
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}
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tag = cxgbi_ddp_tag_base(tformat, sw_tag);
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tag |= idx << PPOD_IDX_SHIFT;
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@ -1293,11 +1287,8 @@ static int ddp_tag_reserve(struct cxgbi_sock *csk, unsigned int tid,
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hdr.page_offset = htonl(gl->offset);
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err = cdev->csk_ddp_set(csk, &hdr, idx, npods, gl);
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if (err < 0) {
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if (cdev->csk_ddp_free_gl_skb)
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cdev->csk_ddp_free_gl_skb(ddp, idx, npods);
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if (err < 0)
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goto unmark_entries;
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}
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ddp->idx_last = idx;
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log_debug(1 << CXGBI_DBG_DDP,
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@ -1363,8 +1354,6 @@ static void ddp_destroy(struct kref *kref)
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>> PPOD_PAGES_SHIFT;
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pr_info("cdev 0x%p, ddp %d + %d.\n", cdev, i, npods);
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kfree(gl);
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if (cdev->csk_ddp_free_gl_skb)
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cdev->csk_ddp_free_gl_skb(ddp, i, npods);
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i += npods;
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} else
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i++;
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@ -1407,8 +1396,6 @@ int cxgbi_ddp_init(struct cxgbi_device *cdev,
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return -ENOMEM;
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}
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ddp->gl_map = (struct cxgbi_gather_list **)(ddp + 1);
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ddp->gl_skb = (struct sk_buff **)(((char *)ddp->gl_map) +
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ppmax * sizeof(struct cxgbi_gather_list *));
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cdev->ddp = ddp;
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spin_lock_init(&ddp->map_lock);
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@ -131,7 +131,6 @@ struct cxgbi_ddp_info {
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unsigned int rsvd_tag_mask;
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spinlock_t map_lock;
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struct cxgbi_gather_list **gl_map;
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struct sk_buff **gl_skb;
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};
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#define DDP_PGIDX_MAX 4
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@ -536,8 +535,6 @@ struct cxgbi_device {
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struct cxgbi_ddp_info *ddp;
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void (*dev_ddp_cleanup)(struct cxgbi_device *);
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void (*csk_ddp_free_gl_skb)(struct cxgbi_ddp_info *, int, int);
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int (*csk_ddp_alloc_gl_skb)(struct cxgbi_ddp_info *, int, int, gfp_t);
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int (*csk_ddp_set)(struct cxgbi_sock *, struct cxgbi_pagepod_hdr *,
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unsigned int, unsigned int,
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struct cxgbi_gather_list *);
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