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Commit 8d5726c4 authored by Eilon Greenstein's avatar Eilon Greenstein Committed by David S. Miller
Browse files

bnx2x: Manual setting for MRRS 



Allows better debug capabilities if the user wants to force an MRRS value

Signed-off-by: default avatarEilon Greenstein <eilong@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 052a38e0

drivers/net/bnx2x.h

+1 −0
Original line number Diff line number Diff line
@@ -864,6 +864,7 @@ struct bnx2x { 


	int			pm_cap;

	int			pcie_cap;

	int			mrrs;



	struct delayed_work	sp_task;

	struct work_struct	reset_task;

drivers/net/bnx2x_init.h

+6 −1
Original line number Diff line number Diff line
@@ -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);

	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",

drivers/net/bnx2x_main.c

+6 −0
Original line number Diff line number Diff line
@@ -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;