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84d767a3c0
This patch introduces a member and the related accessors which can be used to store descriptor specific additional information. This member can store, for instance, an ID to differentiate a skb TX buffer type from a xdpf TX buffer type. Signed-off-by: Julien Panis <jpanis@baylibre.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
36 lines
1.3 KiB
C
36 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* TI K3 CPPI5 descriptors pool
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*
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* Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com
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*/
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#ifndef K3_CPPI_DESC_POOL_H_
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#define K3_CPPI_DESC_POOL_H_
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#include <linux/device.h>
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#include <linux/types.h>
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struct k3_cppi_desc_pool;
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void k3_cppi_desc_pool_destroy(struct k3_cppi_desc_pool *pool);
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struct k3_cppi_desc_pool *
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k3_cppi_desc_pool_create_name(struct device *dev, size_t size,
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size_t desc_size,
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const char *name);
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#define k3_cppi_desc_pool_create(dev, size, desc_size) \
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k3_cppi_desc_pool_create_name(dev, size, desc_size, NULL)
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dma_addr_t
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k3_cppi_desc_pool_virt2dma(struct k3_cppi_desc_pool *pool, void *addr);
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void *
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k3_cppi_desc_pool_dma2virt(struct k3_cppi_desc_pool *pool, dma_addr_t dma);
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void *k3_cppi_desc_pool_alloc(struct k3_cppi_desc_pool *pool);
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void k3_cppi_desc_pool_free(struct k3_cppi_desc_pool *pool, void *addr);
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size_t k3_cppi_desc_pool_avail(struct k3_cppi_desc_pool *pool);
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size_t k3_cppi_desc_pool_desc_size(const struct k3_cppi_desc_pool *pool);
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void *k3_cppi_desc_pool_cpuaddr(const struct k3_cppi_desc_pool *pool);
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void k3_cppi_desc_pool_desc_info_set(struct k3_cppi_desc_pool *pool,
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int desc_idx, void *info);
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void *k3_cppi_desc_pool_desc_info(const struct k3_cppi_desc_pool *pool,
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int desc_idx);
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#endif /* K3_CPPI_DESC_POOL_H_ */
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