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Commit 42ca087f authored by Edward Cree's avatar Edward Cree Committed by David S. Miller
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sfc: add module parameter to enable MCDI logging on new functions 



As many issues are encountered at probe time, where MCDI logging can't be
 enabled through the sysfs node, this change adds a module parameter
 'mcdi_logging_default', which defaults to false.  When set to true, newly-
 probed functions will have MCDI logging enabled.  The setting can
 subsequently be changed as normal through the sysfs node.

Signed-off-by: default avatarEdward Cree <ecree@solarflare.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e7fef9b4

drivers/net/ethernet/sfc/mcdi.c

+9 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
 */



#include <linux/delay.h>

#include <linux/moduleparam.h>

#include <asm/cmpxchg.h>

#include "net_driver.h"

#include "nic.h"
@@ -54,6 +55,13 @@ static int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating, 
static bool efx_mcdi_poll_once(struct efx_nic *efx);

static void efx_mcdi_abandon(struct efx_nic *efx);



#ifdef CONFIG_SFC_MCDI_LOGGING

static bool mcdi_logging_default;

module_param(mcdi_logging_default, bool, 0644);

MODULE_PARM_DESC(mcdi_logging_default,

		 "Enable MCDI logging on newly-probed functions");

#endif



int efx_mcdi_init(struct efx_nic *efx)

{

	struct efx_mcdi_iface *mcdi;
@@ -71,6 +79,7 @@ int efx_mcdi_init(struct efx_nic *efx) 
	mcdi->logging_buffer = (char *)__get_free_page(GFP_KERNEL);

	if (!mcdi->logging_buffer)

		goto fail1;

	mcdi->logging_enabled = mcdi_logging_default;

#endif

	init_waitqueue_head(&mcdi->wq);

	spin_lock_init(&mcdi->iface_lock);