https://github.com/torvalds/linux
Revision 5e911e2c06bd8c17df29147a5e2d4b17fafda024 authored by Moshe Shemesh on 07 April 2020, 14:38:28 UTC, committed by Saeed Mahameed on 23 May 2020, 00:28:54 UTC
On sq closure when we free its descriptors, we should also update netdev
txq on completions which would not arrive. Otherwise if we reopen sqs
and attach them back, for example on fw fatal recovery flow, we may get
tx timeout.

Fixes: 29429f3300a3 ("net/mlx5e: Timeout if SQ doesn't flush during close")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
1 parent 9ca4153
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Tip revision: 5e911e2c06bd8c17df29147a5e2d4b17fafda024 authored by Moshe Shemesh on 07 April 2020, 14:38:28 UTC
net/mlx5e: Update netdev txq on completions during closure
Tip revision: 5e911e2
cma.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __MM_CMA_H__
#define __MM_CMA_H__

struct cma {
	unsigned long   base_pfn;
	unsigned long   count;
	unsigned long   *bitmap;
	unsigned int order_per_bit; /* Order of pages represented by one bit */
	struct mutex    lock;
#ifdef CONFIG_CMA_DEBUGFS
	struct hlist_head mem_head;
	spinlock_t mem_head_lock;
#endif
	const char *name;
};

extern struct cma cma_areas[MAX_CMA_AREAS];
extern unsigned cma_area_count;

static inline unsigned long cma_bitmap_maxno(struct cma *cma)
{
	return cma->count >> cma->order_per_bit;
}

#endif
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