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Commit a73efd0a authored by Divy Le Ray's avatar Divy Le Ray Committed by David S. Miller
Browse files

iw_cxgb3: handle chip reset notifications 



Freeze activity when notified that the underlying chip
is getting reset on a EEH event or fatal error.

Signed-off-by: default avatarDivy Le Ray <divy@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cb0bc205

drivers/infiniband/hw/cxgb3/cxio_hal.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -701,6 +701,9 @@ static int __cxio_tpt_op(struct cxio_rdev *rdev_p, u32 reset_tpt_entry, 
	u32 stag_idx;

	u32 stag_idx;

	u32 wptr;

	u32 wptr;





	if (rdev_p->flags)

		return -EIO;



	stag_state = stag_state > 0;

	stag_state = stag_state > 0;

	stag_idx = (*stag) >> 8;

	stag_idx = (*stag) >> 8;

drivers/infiniband/hw/cxgb3/cxio_hal.h

+2 −0
Original line number Original line Diff line number Diff line
@@ -108,6 +108,8 @@ struct cxio_rdev { 
	struct gen_pool *pbl_pool;

	struct gen_pool *pbl_pool;

	struct gen_pool *rqt_pool;

	struct gen_pool *rqt_pool;

	struct list_head entry;

	struct list_head entry;

	u32	flags;

#define	CXIO_ERROR_FATAL	1

};

};





static inline int cxio_num_stags(struct cxio_rdev *rdev_p)

static inline int cxio_num_stags(struct cxio_rdev *rdev_p)

drivers/infiniband/hw/cxgb3/iwch.c

+14 −1
Original line number Original line Diff line number Diff line
@@ -51,13 +51,15 @@ cxgb3_cpl_handler_func t3c_handlers[NUM_CPL_CMDS]; 




static void open_rnic_dev(struct t3cdev *);

static void open_rnic_dev(struct t3cdev *);

static void close_rnic_dev(struct t3cdev *);

static void close_rnic_dev(struct t3cdev *);

static void iwch_err_handler(struct t3cdev *, u32, u32);





struct cxgb3_client t3c_client = {

struct cxgb3_client t3c_client = {

	.name = "iw_cxgb3",

	.name = "iw_cxgb3",

	.add = open_rnic_dev,

	.add = open_rnic_dev,

	.remove = close_rnic_dev,

	.remove = close_rnic_dev,

	.handlers = t3c_handlers,

	.handlers = t3c_handlers,

	.redirect = iwch_ep_redirect

	.redirect = iwch_ep_redirect,

	.err_handler = iwch_err_handler

};

};





static LIST_HEAD(dev_list);

static LIST_HEAD(dev_list);
@@ -160,6 +162,17 @@ static void close_rnic_dev(struct t3cdev *tdev) 
	mutex_unlock(&dev_mutex);

	mutex_unlock(&dev_mutex);

}

}





static void iwch_err_handler(struct t3cdev *tdev, u32 status, u32 error)

{

	struct cxio_rdev *rdev = tdev->ulp;



	if (status == OFFLOAD_STATUS_DOWN)

		rdev->flags = CXIO_ERROR_FATAL;



	return;



}



static int __init iwch_init_module(void)

static int __init iwch_init_module(void)

{

{

	int err;

	int err;