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xen-netback: Rename map ops
Rename identifiers to state explicitly that they refer to map ops. Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com> Reviewed-by: Paul Durrant <paul.durrant@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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acdd32be6d
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9074ce2493
1 changed files with 24 additions and 22 deletions
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@ -820,13 +820,13 @@ struct xenvif_tx_cb {
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#define XENVIF_TX_CB(skb) ((struct xenvif_tx_cb *)(skb)->cb)
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static inline void xenvif_tx_create_gop(struct xenvif *vif,
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u16 pending_idx,
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struct xen_netif_tx_request *txp,
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struct gnttab_map_grant_ref *gop)
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static inline void xenvif_tx_create_map_op(struct xenvif *vif,
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u16 pending_idx,
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struct xen_netif_tx_request *txp,
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struct gnttab_map_grant_ref *mop)
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{
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vif->pages_to_map[gop-vif->tx_map_ops] = vif->mmap_pages[pending_idx];
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gnttab_set_map_op(gop, idx_to_kaddr(vif, pending_idx),
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vif->pages_to_map[mop-vif->tx_map_ops] = vif->mmap_pages[pending_idx];
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gnttab_set_map_op(mop, idx_to_kaddr(vif, pending_idx),
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GNTMAP_host_map | GNTMAP_readonly,
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txp->gref, vif->domid);
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@ -880,7 +880,7 @@ static struct gnttab_map_grant_ref *xenvif_get_requests(struct xenvif *vif,
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shinfo->nr_frags++, txp++, gop++) {
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index = pending_index(vif->pending_cons++);
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pending_idx = vif->pending_ring[index];
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xenvif_tx_create_gop(vif, pending_idx, txp, gop);
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xenvif_tx_create_map_op(vif, pending_idx, txp, gop);
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frag_set_pending_idx(&frags[shinfo->nr_frags], pending_idx);
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}
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@ -900,7 +900,7 @@ static struct gnttab_map_grant_ref *xenvif_get_requests(struct xenvif *vif,
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shinfo->nr_frags++, txp++, gop++) {
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index = pending_index(vif->pending_cons++);
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pending_idx = vif->pending_ring[index];
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xenvif_tx_create_gop(vif, pending_idx, txp, gop);
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xenvif_tx_create_map_op(vif, pending_idx, txp, gop);
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frag_set_pending_idx(&frags[shinfo->nr_frags],
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pending_idx);
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}
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@ -940,9 +940,9 @@ static inline void xenvif_grant_handle_reset(struct xenvif *vif,
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static int xenvif_tx_check_gop(struct xenvif *vif,
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struct sk_buff *skb,
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struct gnttab_map_grant_ref **gopp)
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struct gnttab_map_grant_ref **gopp_map)
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{
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struct gnttab_map_grant_ref *gop = *gopp;
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struct gnttab_map_grant_ref *gop_map = *gopp_map;
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u16 pending_idx = XENVIF_TX_CB(skb)->pending_idx;
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struct skb_shared_info *shinfo = skb_shinfo(skb);
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struct pending_tx_info *tx_info;
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@ -951,11 +951,11 @@ static int xenvif_tx_check_gop(struct xenvif *vif,
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struct sk_buff *first_skb = NULL;
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/* Check status of header. */
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err = gop->status;
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err = gop_map->status;
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if (unlikely(err))
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xenvif_idx_release(vif, pending_idx, XEN_NETIF_RSP_ERROR);
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else
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xenvif_grant_handle_set(vif, pending_idx , gop->handle);
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xenvif_grant_handle_set(vif, pending_idx , gop_map->handle);
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/* Skip first skb fragment if it is on same page as header fragment. */
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start = (frag_get_pending_idx(&shinfo->frags[0]) == pending_idx);
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@ -968,10 +968,12 @@ static int xenvif_tx_check_gop(struct xenvif *vif,
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tx_info = &vif->pending_tx_info[pending_idx];
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/* Check error status: if okay then remember grant handle. */
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newerr = (++gop)->status;
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newerr = (++gop_map)->status;
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if (likely(!newerr)) {
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xenvif_grant_handle_set(vif, pending_idx , gop->handle);
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xenvif_grant_handle_set(vif,
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pending_idx,
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gop_map->handle);
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/* Had a previous error? Invalidate this fragment. */
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if (unlikely(err))
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xenvif_idx_unmap(vif, pending_idx);
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@ -1023,7 +1025,7 @@ static int xenvif_tx_check_gop(struct xenvif *vif,
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}
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}
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*gopp = gop + 1;
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*gopp_map = gop_map + 1;
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return err;
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}
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@ -1292,7 +1294,7 @@ static unsigned xenvif_tx_build_gops(struct xenvif *vif, int budget)
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}
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}
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xenvif_tx_create_gop(vif, pending_idx, &txreq, gop);
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xenvif_tx_create_map_op(vif, pending_idx, &txreq, gop);
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gop++;
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@ -1399,7 +1401,7 @@ static int xenvif_handle_frag_list(struct xenvif *vif, struct sk_buff *skb)
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static int xenvif_tx_submit(struct xenvif *vif)
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{
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struct gnttab_map_grant_ref *gop = vif->tx_map_ops;
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struct gnttab_map_grant_ref *gop_map = vif->tx_map_ops;
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struct sk_buff *skb;
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int work_done = 0;
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@ -1412,7 +1414,7 @@ static int xenvif_tx_submit(struct xenvif *vif)
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txp = &vif->pending_tx_info[pending_idx].req;
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/* Check the remap error code. */
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if (unlikely(xenvif_tx_check_gop(vif, skb, &gop))) {
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if (unlikely(xenvif_tx_check_gop(vif, skb, &gop_map))) {
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netdev_dbg(vif->dev, "netback grant failed.\n");
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skb_shinfo(skb)->nr_frags = 0;
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kfree_skb(skb);
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@ -1611,21 +1613,21 @@ static inline void xenvif_tx_dealloc_action(struct xenvif *vif)
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/* Called after netfront has transmitted */
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int xenvif_tx_action(struct xenvif *vif, int budget)
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{
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unsigned nr_gops;
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unsigned nr_mops;
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int work_done, ret;
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if (unlikely(!tx_work_todo(vif)))
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return 0;
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nr_gops = xenvif_tx_build_gops(vif, budget);
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nr_mops = xenvif_tx_build_gops(vif, budget);
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if (nr_gops == 0)
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if (nr_mops == 0)
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return 0;
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ret = gnttab_map_refs(vif->tx_map_ops,
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NULL,
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vif->pages_to_map,
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nr_gops);
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nr_mops);
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BUG_ON(ret);
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work_done = xenvif_tx_submit(vif);
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