X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fs390%2Fnet%2Fqeth_eddp.c;h=38aad8321456e9142d60c293e4e42bfb6965a578;hb=4e76c8a9fa413ccc09d3f7f664183dcce3555d57;hp=f94f1f25eec60a8e57ba9d311a90c47b2df58594;hpb=4b659086703c3cfdabfc916b517590ad55d1ddfa;p=linux-2.6.git diff --git a/drivers/s390/net/qeth_eddp.c b/drivers/s390/net/qeth_eddp.c index f94f1f25e..38aad8321 100644 --- a/drivers/s390/net/qeth_eddp.c +++ b/drivers/s390/net/qeth_eddp.c @@ -1,6 +1,5 @@ /* - * - * linux/drivers/s390/net/qeth_eddp.c ($Revision: 1.13 $) + * linux/drivers/s390/net/qeth_eddp.c * * Enhanced Device Driver Packing (EDDP) support for the qeth driver. * @@ -8,8 +7,6 @@ * * Author(s): Thomas Spatzier * - * $Revision: 1.13 $ $Date: 2005/05/04 20:19:18 $ - * */ #include #include @@ -62,8 +59,7 @@ qeth_eddp_free_context(struct qeth_eddp_context *ctx) for (i = 0; i < ctx->num_pages; ++i) free_page((unsigned long)ctx->pages[i]); kfree(ctx->pages); - if (ctx->elements != NULL) - kfree(ctx->elements); + kfree(ctx->elements); kfree(ctx); } @@ -85,7 +81,7 @@ void qeth_eddp_buf_release_contexts(struct qeth_qdio_out_buffer *buf) { struct qeth_eddp_context_reference *ref; - + QETH_DBF_TEXT(trace, 6, "eddprctx"); while (!list_empty(&buf->ctx_list)){ ref = list_entry(buf->ctx_list.next, @@ -139,7 +135,7 @@ qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue, "buffer!\n"); goto out; } - } + } /* check if the whole next skb fits into current buffer */ if ((QETH_MAX_BUFFER_ELEMENTS(queue->card) - buf->next_element_to_fill) @@ -152,7 +148,7 @@ qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue, * and increment ctx's refcnt */ must_refcnt = 1; continue; - } + } if (must_refcnt){ must_refcnt = 0; if (qeth_eddp_buf_ref_context(buf, ctx)){ @@ -270,7 +266,7 @@ qeth_eddp_copy_data_tcp(char *dst, struct qeth_eddp_data *eddp, int len, int left_in_frag; int copy_len; u8 *src; - + QETH_DBF_TEXT(trace, 5, "eddpcdtc"); if (skb_shinfo(eddp->skb)->nr_frags == 0) { memcpy(dst, eddp->skb->data + eddp->skb_offset, len); @@ -393,9 +389,8 @@ qeth_eddp_create_eddp_data(struct qeth_hdr *qh, u8 *nh, u8 nhl, u8 *th, u8 thl) struct qeth_eddp_data *eddp; QETH_DBF_TEXT(trace, 5, "eddpcrda"); - eddp = kmalloc(sizeof(struct qeth_eddp_data), GFP_ATOMIC); + eddp = kzalloc(sizeof(struct qeth_eddp_data), GFP_ATOMIC); if (eddp){ - memset(eddp, 0, sizeof(struct qeth_eddp_data)); eddp->nhl = nhl; eddp->thl = thl; memcpy(&eddp->qh, qh, sizeof(struct qeth_hdr)); @@ -413,12 +408,19 @@ __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, struct tcphdr *tcph; int data_len; u32 hcsum; - + QETH_DBF_TEXT(trace, 5, "eddpftcp"); eddp->skb_offset = sizeof(struct qeth_hdr) + eddp->nhl + eddp->thl; + if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) { + eddp->skb_offset += sizeof(struct ethhdr); +#ifdef CONFIG_QETH_VLAN + if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) + eddp->skb_offset += VLAN_HLEN; +#endif /* CONFIG_QETH_VLAN */ + } tcph = eddp->skb->h.th; while (eddp->skb_offset < eddp->skb->len) { - data_len = min((int)skb_shinfo(eddp->skb)->tso_size, + data_len = min((int)skb_shinfo(eddp->skb)->gso_size, (int)(eddp->skb->len - eddp->skb_offset)); /* prepare qdio hdr */ if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2){ @@ -463,13 +465,13 @@ __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, eddp->th.tcp.h.seq += data_len; } } - + static inline int qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, struct sk_buff *skb, struct qeth_hdr *qhdr) { struct qeth_eddp_data *eddp = NULL; - + QETH_DBF_TEXT(trace, 5, "eddpficx"); /* create our segmentation headers and copy original headers */ if (skb->protocol == ETH_P_IP) @@ -486,6 +488,7 @@ qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, return -ENOMEM; } if (qhdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2) { + skb->mac.raw = (skb->data) + sizeof(struct qeth_hdr); memcpy(&eddp->mac, eth_hdr(skb), ETH_HLEN); #ifdef CONFIG_QETH_VLAN if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) { @@ -509,23 +512,23 @@ qeth_eddp_calc_num_pages(struct qeth_eddp_context *ctx, struct sk_buff *skb, int hdr_len) { int skbs_per_page; - + QETH_DBF_TEXT(trace, 5, "eddpcanp"); /* can we put multiple skbs in one page? */ - skbs_per_page = PAGE_SIZE / (skb_shinfo(skb)->tso_size + hdr_len); + skbs_per_page = PAGE_SIZE / (skb_shinfo(skb)->gso_size + hdr_len); if (skbs_per_page > 1){ - ctx->num_pages = (skb_shinfo(skb)->tso_segs + 1) / + ctx->num_pages = (skb_shinfo(skb)->gso_segs + 1) / skbs_per_page + 1; ctx->elements_per_skb = 1; } else { /* no -> how many elements per skb? */ - ctx->elements_per_skb = (skb_shinfo(skb)->tso_size + hdr_len + + ctx->elements_per_skb = (skb_shinfo(skb)->gso_size + hdr_len + PAGE_SIZE) >> PAGE_SHIFT; ctx->num_pages = ctx->elements_per_skb * - (skb_shinfo(skb)->tso_segs + 1); + (skb_shinfo(skb)->gso_segs + 1); } ctx->num_elements = ctx->elements_per_skb * - (skb_shinfo(skb)->tso_segs + 1); + (skb_shinfo(skb)->gso_segs + 1); } static inline struct qeth_eddp_context * @@ -538,12 +541,11 @@ qeth_eddp_create_context_generic(struct qeth_card *card, struct sk_buff *skb, QETH_DBF_TEXT(trace, 5, "creddpcg"); /* create the context and allocate pages */ - ctx = kmalloc(sizeof(struct qeth_eddp_context), GFP_ATOMIC); + ctx = kzalloc(sizeof(struct qeth_eddp_context), GFP_ATOMIC); if (ctx == NULL){ QETH_DBF_TEXT(trace, 2, "ceddpcn1"); return NULL; } - memset(ctx, 0, sizeof(struct qeth_eddp_context)); ctx->type = QETH_LARGE_SEND_EDDP; qeth_eddp_calc_num_pages(ctx, skb, hdr_len); if (ctx->elements_per_skb > QETH_MAX_BUFFER_ELEMENTS(card)){ @@ -551,13 +553,12 @@ qeth_eddp_create_context_generic(struct qeth_card *card, struct sk_buff *skb, kfree(ctx); return NULL; } - ctx->pages = kmalloc(ctx->num_pages * sizeof(u8 *), GFP_ATOMIC); + ctx->pages = kcalloc(ctx->num_pages, sizeof(u8 *), GFP_ATOMIC); if (ctx->pages == NULL){ QETH_DBF_TEXT(trace, 2, "ceddpcn2"); kfree(ctx); return NULL; } - memset(ctx->pages, 0, ctx->num_pages * sizeof(u8 *)); for (i = 0; i < ctx->num_pages; ++i){ addr = (u8 *)__get_free_page(GFP_ATOMIC); if (addr == NULL){ @@ -569,15 +570,13 @@ qeth_eddp_create_context_generic(struct qeth_card *card, struct sk_buff *skb, memset(addr, 0, PAGE_SIZE); ctx->pages[i] = addr; } - ctx->elements = kmalloc(ctx->num_elements * + ctx->elements = kcalloc(ctx->num_elements, sizeof(struct qeth_eddp_element), GFP_ATOMIC); if (ctx->elements == NULL){ QETH_DBF_TEXT(trace, 2, "ceddpcn4"); qeth_eddp_free_context(ctx); return NULL; } - memset(ctx->elements, 0, - ctx->num_elements * sizeof(struct qeth_eddp_element)); /* reset num_elements; will be incremented again in fill_buffer to * reflect number of actually used elements */ ctx->num_elements = 0; @@ -589,7 +588,7 @@ qeth_eddp_create_context_tcp(struct qeth_card *card, struct sk_buff *skb, struct qeth_hdr *qhdr) { struct qeth_eddp_context *ctx = NULL; - + QETH_DBF_TEXT(trace, 5, "creddpct"); if (skb->protocol == ETH_P_IP) ctx = qeth_eddp_create_context_generic(card, skb,