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authorDavid Woodhouse <David.Woodhouse@intel.com>2009-01-27 10:18:51 +1100
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-01-27 10:18:51 +1100
commitb76811af7606b36cb0703f04449c301b9634dcbc (patch)
tree2420dfb34e469b8521c0a70bdbba78b547b61f0c /drivers/atm/solos-pci.c
parent1de9e8e70f5acc441550ca75433563d91b269bbe (diff)
downloadlinux-b76811af7606b36cb0703f04449c301b9634dcbc.tar.bz2
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 <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/atm/solos-pci.c')
-rw-r--r--drivers/atm/solos-pci.c11
1 files 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);