From b76811af7606b36cb0703f04449c301b9634dcbc Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Tue, 27 Jan 2009 10:18:51 +1100 Subject: [PATCH] solos: Fix length header in FPGA transfers The length field shouldn't ever include the size of the header itself. This fixes the problem that some people were seeing with 1500-byte packets. Signed-off-by: David Woodhouse --- drivers/atm/solos-pci.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c index 72fc0f799a64..f0309546c356 100644 --- a/drivers/atm/solos-pci.c +++ b/drivers/atm/solos-pci.c @@ -356,7 +356,7 @@ static int popen(struct atm_vcc *vcc) } header = (void *)skb_put(skb, sizeof(*header)); - header->size = cpu_to_le16(sizeof(*header)); + header->size = cpu_to_le16(0); header->vpi = cpu_to_le16(vcc->vpi); header->vci = cpu_to_le16(vcc->vci); header->type = cpu_to_le16(PKT_POPEN); @@ -389,7 +389,7 @@ static void pclose(struct atm_vcc *vcc) } header = (void *)skb_put(skb, sizeof(*header)); - header->size = cpu_to_le16(sizeof(*header)); + header->size = cpu_to_le16(0); header->vpi = cpu_to_le16(vcc->vpi); header->vci = cpu_to_le16(vcc->vci); header->type = cpu_to_le16(PKT_PCLOSE); @@ -507,6 +507,7 @@ static int psend(struct atm_vcc *vcc, struct sk_buff *skb) struct solos_card *card = vcc->dev->dev_data; struct sk_buff *skb2 = NULL; struct pkt_hdr *header; + int pktlen; //dev_dbg(&card->dev->dev, "psend called.\n"); //dev_dbg(&card->dev->dev, "dev,vpi,vci = %d,%d,%d\n",SOLOS_CHAN(vcc->dev),vcc->vpi,vcc->vci); @@ -524,7 +525,8 @@ static int psend(struct atm_vcc *vcc, struct sk_buff *skb) return 0; } - if (skb->len > (BUF_SIZE - sizeof(*header))) { + pktlen = skb->len; + if (pktlen > (BUF_SIZE - sizeof(*header))) { dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n"); solos_pop(vcc, skb); return 0; @@ -546,7 +548,8 @@ static int psend(struct atm_vcc *vcc, struct sk_buff *skb) header = (void *)skb_push(skb, sizeof(*header)); - header->size = cpu_to_le16(skb->len); + /* This does _not_ include the size of the header */ + header->size = cpu_to_le16(pktlen); header->vpi = cpu_to_le16(vcc->vpi); header->vci = cpu_to_le16(vcc->vci); header->type = cpu_to_le16(PKT_DATA);