diff options
| author | Eilon Greenstein <eilong@broadcom.com> | 2009-02-12 08:37:19 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-02-15 23:31:42 -0800 |
| commit | 8d5726c404fd41fedb7a49e1fbef62c60754021a (patch) | |
| tree | 2e0228391607ab5f9b8fd0c6a8772c5d54009e7a | |
| parent | 052a38e096dece43e38a19a896ae7ad019415bc1 (diff) | |
bnx2x: Manual setting for MRRS
Allows better debug capabilities if the user wants to force an MRRS value
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/bnx2x.h | 1 | ||||
| -rw-r--r-- | drivers/net/bnx2x_init.h | 7 | ||||
| -rw-r--r-- | drivers/net/bnx2x_main.c | 6 |
3 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/bnx2x.h b/drivers/net/bnx2x.h index 9834a86d8139..891a58ed7591 100644 --- a/drivers/net/bnx2x.h +++ b/drivers/net/bnx2x.h @@ -864,6 +864,7 @@ struct bnx2x { int pm_cap; int pcie_cap; + int mrrs; struct delayed_work sp_task; struct work_struct reset_task; diff --git a/drivers/net/bnx2x_init.h b/drivers/net/bnx2x_init.h index a6c0b3abba29..961db4916f25 100644 --- a/drivers/net/bnx2x_init.h +++ b/drivers/net/bnx2x_init.h @@ -572,7 +572,12 @@ static void bnx2x_init_pxp(struct bnx2x *bp) bp->pcie_cap + PCI_EXP_DEVCTL, &devctl); DP(NETIF_MSG_HW, "read 0x%x from devctl\n", devctl); w_order = ((devctl & PCI_EXP_DEVCTL_PAYLOAD) >> 5); - r_order = ((devctl & PCI_EXP_DEVCTL_READRQ) >> 12); + if (bp->mrrs == -1) + r_order = ((devctl & PCI_EXP_DEVCTL_READRQ) >> 12); + else { + DP(NETIF_MSG_HW, "force read order to %d\n", bp->mrrs); + r_order = bp->mrrs; + } if (r_order > MAX_RD_ORD) { DP(NETIF_MSG_HW, "read order of %d order adjusted to %d\n", diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c index 60a4e94e6840..2e4d64df66f5 100644 --- a/drivers/net/bnx2x_main.c +++ b/drivers/net/bnx2x_main.c @@ -88,6 +88,11 @@ module_param(int_mode, int, 0); MODULE_PARM_DESC(int_mode, " Force interrupt mode (1 INT#x; 2 MSI)"); module_param(poll, int, 0); + +static int mrrs = -1; +module_param(mrrs, int, 0); +MODULE_PARM_DESC(mrrs, " Force Max Read Req Size (0..3) (for debug)"); + module_param(debug, int, 0); MODULE_PARM_DESC(disable_tpa, "disable the TPA (LRO) feature"); MODULE_PARM_DESC(poll, "use polling (for debug)"); @@ -8160,6 +8165,7 @@ static int __devinit bnx2x_init_bp(struct bnx2x *bp) bp->dev->features |= NETIF_F_LRO; } + bp->mrrs = mrrs; bp->tx_ring_size = MAX_TX_AVAIL; bp->rx_ring_size = MAX_RX_AVAIL; |