Commit c5a8c0f3 authored by Hariprasad Shenai's avatar Hariprasad Shenai Committed by David S. Miller
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cxgb4: Force cxgb4 driver as MASTER in kdump kernel 



When is_kdump_kernel() is true, Forcing cxgb4 driver as Master so we can
reinitialize the Firmware/Chip. Also reduce memory usage by disabling
offload.

Signed-off-by: default avatarHariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 88da48f4

drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c

+8 −1
Original line number Diff line number Diff line
@@ -64,6 +64,7 @@ 
#include <net/bonding.h>

#include <net/addrconf.h>

#include <asm/uaccess.h>

#include <linux/crash_dump.h>



#include "cxgb4.h"

#include "t4_regs.h"
@@ -3735,7 +3736,8 @@ static int adap_init0(struct adapter *adap) 
		return ret;



	/* Contact FW, advertising Master capability */

	ret = t4_fw_hello(adap, adap->mbox, adap->mbox, MASTER_MAY, &state);

	ret = t4_fw_hello(adap, adap->mbox, adap->mbox,

			  is_kdump_kernel() ? MASTER_MUST : MASTER_MAY, &state);

	if (ret < 0) {

		dev_err(adap->pdev_dev, "could not connect to FW, error %d\n",

			ret);
@@ -4366,6 +4368,11 @@ static void cfg_queues(struct adapter *adap) 
	if (q10g > netif_get_num_default_rss_queues())

		q10g = netif_get_num_default_rss_queues();



	/* Reduce memory usage in kdump environment, disable all offload.

	 */

	if (is_kdump_kernel())

		adap->params.offload = 0;



	for_each_port(adap, i) {

		struct port_info *pi = adap2pinfo(adap, i);

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