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igb: use packet buffer sizes from RXPBS register

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This patch changes the configuration for 82576 so that it uses the actual
value of the 82576 rx packet buffer size instead of just assuming the
value.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2009-10-27 23:46:38 +00:00 committed by David S. Miller
parent 317f66bdad
commit d249be5474
3 changed files with 6 additions and 1 deletions
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2
drivers/net/igb/e1000_82575.h
View File

@ -228,6 +228,8 @@ struct e1000_adv_tx_context_desc {
#define ALL_QUEUES 0xFFFF
/* RX packet buffer size defines */
#define E1000_RXPBS_SIZE_MASK_82576 0x0000007F
void igb_vmdq_set_loopback_pf(struct e1000_hw *, bool);
void igb_vmdq_set_replication_pf(struct e1000_hw *, bool);

2
drivers/net/igb/e1000_regs.h
View File

@ -102,7 +102,9 @@
#define E1000_ETQF(_n) (0x05CB0 + (4 * (_n))) /* EType Queue Fltr */
#define E1000_RQDPC(_n) (0x0C030 + ((_n) * 0x40))
/* Split and Replication RX Control - RW */
#define E1000_RXPBS 0x02404 /* Rx Packet Buffer Size - RW */
/*
* Convenience macros
*

3
drivers/net/igb/igb_main.c
View File

@ -1215,7 +1215,8 @@ void igb_reset(struct igb_adapter *adapter)
*/
switch (mac->type) {
case e1000_82576:
pba = E1000_PBA_64K;
pba = rd32(E1000_RXPBS);
pba &= E1000_RXPBS_SIZE_MASK_82576;
break;
case e1000_82575:
default: