diff options
author | Aviad Krawczyk <aviad.krawczyk@huawei.com> | 2017-08-21 23:55:59 +0800 |
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committer | David S. Miller <davem@davemloft.net> | 2017-08-22 10:48:53 -0700 |
commit | 53e7d6feb949b4df542897ab13a33fe484a45c72 (patch) | |
tree | faf1c86a8d97d28734160b3117c0ee3c677c02ee /drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.h | |
parent | f91090f7da3a215e3cf8f678ab71ad65d1d627a1 (diff) |
net-next/hinic: Set qp context
Update the nic about the resources of the queue pairs.
Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.h')
-rw-r--r-- | drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.h b/drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.h new file mode 100644 index 000000000000..c9e97cad9b29 --- /dev/null +++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.h @@ -0,0 +1,84 @@ +/* + * Huawei HiNIC PCI Express Linux driver + * Copyright(c) 2017 Huawei Technologies Co., Ltd + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + */ + +#ifndef HINIC_CMDQ_H +#define HINIC_CMDQ_H + +#include <linux/types.h> +#include <linux/spinlock.h> +#include <linux/completion.h> +#include <linux/pci.h> + +#include "hinic_hw_if.h" +#include "hinic_hw_wq.h" + +#define HINIC_CMDQ_BUF_SIZE 2048 + +enum hinic_cmdq_type { + HINIC_CMDQ_SYNC, + + HINIC_MAX_CMDQ_TYPES, +}; + +struct hinic_cmdq_buf { + void *buf; + dma_addr_t dma_addr; + size_t size; +}; + +struct hinic_cmdq { + struct hinic_wq *wq; + + enum hinic_cmdq_type cmdq_type; + int wrapped; + + /* Lock for keeping the doorbell order */ + spinlock_t cmdq_lock; + + struct completion **done; + int **errcode; + + /* doorbell area */ + void __iomem *db_base; +}; + +struct hinic_cmdqs { + struct hinic_hwif *hwif; + + struct pci_pool *cmdq_buf_pool; + + struct hinic_wq *saved_wqs; + + struct hinic_cmdq_pages cmdq_pages; + + struct hinic_cmdq cmdq[HINIC_MAX_CMDQ_TYPES]; +}; + +int hinic_alloc_cmdq_buf(struct hinic_cmdqs *cmdqs, + struct hinic_cmdq_buf *cmdq_buf); + +void hinic_free_cmdq_buf(struct hinic_cmdqs *cmdqs, + struct hinic_cmdq_buf *cmdq_buf); + +int hinic_cmdq_direct_resp(struct hinic_cmdqs *cmdqs, + enum hinic_mod_type mod, u8 cmd, + struct hinic_cmdq_buf *buf_in, u64 *out_param); + +int hinic_init_cmdqs(struct hinic_cmdqs *cmdqs, struct hinic_hwif *hwif, + void __iomem **db_area); + +void hinic_free_cmdqs(struct hinic_cmdqs *cmdqs); + +#endif |