ibmveth: add support for TSO6
This patch adds support for a new method of signalling the firmware
that TSO packets are being sent. The new method removes the need to
alter the ip and tcp checksums and allows TSO6 support.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/ibm/ibmveth.h b/drivers/net/ethernet/ibm/ibmveth.h
index 41dedb1..4eade67 100644
--- a/drivers/net/ethernet/ibm/ibmveth.h
+++ b/drivers/net/ethernet/ibm/ibmveth.h
@@ -40,6 +40,8 @@
#define IbmVethMcastRemoveFilter 0x2UL
#define IbmVethMcastClearFilterTable 0x3UL
+#define IBMVETH_ILLAN_LRG_SR_ENABLED 0x0000000000010000UL
+#define IBMVETH_ILLAN_LRG_SND_SUPPORT 0x0000000000008000UL
#define IBMVETH_ILLAN_PADDED_PKT_CSUM 0x0000000000002000UL
#define IBMVETH_ILLAN_TRUNK_PRI_MASK 0x0000000000000F00UL
#define IBMVETH_ILLAN_IPV6_TCP_CSUM 0x0000000000000004UL
@@ -59,13 +61,20 @@
static inline long h_send_logical_lan(unsigned long unit_address,
unsigned long desc1, unsigned long desc2, unsigned long desc3,
unsigned long desc4, unsigned long desc5, unsigned long desc6,
- unsigned long corellator_in, unsigned long *corellator_out)
+ unsigned long corellator_in, unsigned long *corellator_out,
+ unsigned long mss, unsigned long large_send_support)
{
long rc;
unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
- rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1,
- desc2, desc3, desc4, desc5, desc6, corellator_in);
+ if (large_send_support)
+ rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address,
+ desc1, desc2, desc3, desc4, desc5, desc6,
+ corellator_in, mss);
+ else
+ rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address,
+ desc1, desc2, desc3, desc4, desc5, desc6,
+ corellator_in);
*corellator_out = retbuf[0];
@@ -147,11 +156,13 @@
struct ibmveth_rx_q rx_queue;
int pool_config;
int rx_csum;
+ int large_send;
void *bounce_buffer;
dma_addr_t bounce_buffer_dma;
u64 fw_ipv6_csum_support;
u64 fw_ipv4_csum_support;
+ u64 fw_large_send_support;
/* adapter specific stats */
u64 replenish_task_cycles;
u64 replenish_no_mem;
@@ -182,6 +193,7 @@
#endif
#define IBMVETH_BUF_VALID 0x80000000
#define IBMVETH_BUF_TOGGLE 0x40000000
+#define IBMVETH_BUF_LRG_SND 0x04000000
#define IBMVETH_BUF_NO_CSUM 0x02000000
#define IBMVETH_BUF_CSUM_GOOD 0x01000000
#define IBMVETH_BUF_LEN_MASK 0x00FFFFFF