From 53e7d6feb949b4df542897ab13a33fe484a45c72 Mon Sep 17 00:00:00 2001 From: Aviad Krawczyk Date: Mon, 21 Aug 2017 23:55:59 +0800 Subject: [PATCH] net-next/hinic: Set qp context Update the nic about the resources of the queue pairs. Signed-off-by: Aviad Krawczyk Signed-off-by: Zhao Chen Signed-off-by: David S. Miller --- drivers/net/ethernet/huawei/hinic/Makefile | 5 +- .../net/ethernet/huawei/hinic/hinic_common.c | 55 +++++ .../net/ethernet/huawei/hinic/hinic_common.h | 4 + .../net/ethernet/huawei/hinic/hinic_hw_cmdq.c | 87 +++++++ .../net/ethernet/huawei/hinic/hinic_hw_cmdq.h | 84 +++++++ .../net/ethernet/huawei/hinic/hinic_hw_dev.c | 4 + .../net/ethernet/huawei/hinic/hinic_hw_io.c | 151 ++++++++++++ .../net/ethernet/huawei/hinic/hinic_hw_io.h | 5 + .../net/ethernet/huawei/hinic/hinic_hw_qp.c | 160 +++++++++++++ .../net/ethernet/huawei/hinic/hinic_hw_qp.h | 11 + .../ethernet/huawei/hinic/hinic_hw_qp_ctxt.h | 214 ++++++++++++++++++ .../net/ethernet/huawei/hinic/hinic_hw_wq.h | 9 + 12 files changed, 787 insertions(+), 2 deletions(-) create mode 100644 drivers/net/ethernet/huawei/hinic/hinic_common.c create mode 100644 drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.c create mode 100644 drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.h create mode 100644 drivers/net/ethernet/huawei/hinic/hinic_hw_qp_ctxt.h diff --git a/drivers/net/ethernet/huawei/hinic/Makefile b/drivers/net/ethernet/huawei/hinic/Makefile index 84815f7c28dc..289ce88bb2d0 100644 --- a/drivers/net/ethernet/huawei/hinic/Makefile +++ b/drivers/net/ethernet/huawei/hinic/Makefile @@ -1,5 +1,6 @@ obj-$(CONFIG_HINIC) += hinic.o hinic-y := hinic_main.o hinic_tx.o hinic_rx.o hinic_port.o hinic_hw_dev.o \ - hinic_hw_io.o hinic_hw_qp.o hinic_hw_wq.o hinic_hw_mgmt.o \ - hinic_hw_api_cmd.o hinic_hw_eqs.o hinic_hw_if.o + hinic_hw_io.o hinic_hw_qp.o hinic_hw_cmdq.o hinic_hw_wq.o \ + hinic_hw_mgmt.o hinic_hw_api_cmd.o hinic_hw_eqs.o hinic_hw_if.o \ + hinic_common.o diff --git a/drivers/net/ethernet/huawei/hinic/hinic_common.c b/drivers/net/ethernet/huawei/hinic/hinic_common.c new file mode 100644 index 000000000000..1915ad63deec --- /dev/null +++ b/drivers/net/ethernet/huawei/hinic/hinic_common.c @@ -0,0 +1,55 @@ +/* + * 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. + * + */ + +#include +#include + +#include "hinic_common.h" + +/** + * hinic_cpu_to_be32 - convert data to big endian 32 bit format + * @data: the data to convert + * @len: length of data to convert + **/ +void hinic_cpu_to_be32(void *data, int len) +{ + u32 *mem = data; + int i; + + len = len / sizeof(u32); + + for (i = 0; i < len; i++) { + *mem = cpu_to_be32(*mem); + mem++; + } +} + +/** + * hinic_be32_to_cpu - convert data from big endian 32 bit format + * @data: the data to convert + * @len: length of data to convert + **/ +void hinic_be32_to_cpu(void *data, int len) +{ + u32 *mem = data; + int i; + + len = len / sizeof(u32); + + for (i = 0; i < len; i++) { + *mem = be32_to_cpu(*mem); + mem++; + } +} diff --git a/drivers/net/ethernet/huawei/hinic/hinic_common.h b/drivers/net/ethernet/huawei/hinic/hinic_common.h index 6a83c157b978..0f2f4ff70c97 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_common.h +++ b/drivers/net/ethernet/huawei/hinic/hinic_common.h @@ -22,4 +22,8 @@ struct hinic_sge { u32 len; }; +void hinic_cpu_to_be32(void *data, int len); + +void hinic_be32_to_cpu(void *data, int len); + #endif diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.c b/drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.c new file mode 100644 index 000000000000..2fd3924f4eaf --- /dev/null +++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.c @@ -0,0 +1,87 @@ +/* + * 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. + * + */ + +#include +#include + +#include "hinic_hw_if.h" +#include "hinic_hw_cmdq.h" + +/** + * hinic_alloc_cmdq_buf - alloc buffer for sending command + * @cmdqs: the cmdqs + * @cmdq_buf: the buffer returned in this struct + * + * Return 0 - Success, negative - Failure + **/ +int hinic_alloc_cmdq_buf(struct hinic_cmdqs *cmdqs, + struct hinic_cmdq_buf *cmdq_buf) +{ + /* should be implemented */ + return -ENOMEM; +} + +/** + * hinic_free_cmdq_buf - free buffer + * @cmdqs: the cmdqs + * @cmdq_buf: the buffer to free that is in this struct + **/ +void hinic_free_cmdq_buf(struct hinic_cmdqs *cmdqs, + struct hinic_cmdq_buf *cmdq_buf) +{ + /* should be implemented */ +} + +/** + * hinic_cmdq_direct_resp - send command with direct data as resp + * @cmdqs: the cmdqs + * @mod: module on the card that will handle the command + * @cmd: the command + * @buf_in: the buffer for the command + * @resp: the response to return + * + * Return 0 - Success, negative - Failure + **/ +int hinic_cmdq_direct_resp(struct hinic_cmdqs *cmdqs, + enum hinic_mod_type mod, u8 cmd, + struct hinic_cmdq_buf *buf_in, u64 *resp) +{ + /* should be implemented */ + return -EINVAL; +} + +/** + * hinic_init_cmdqs - init all cmdqs + * @cmdqs: cmdqs to init + * @hwif: HW interface for accessing cmdqs + * @db_area: doorbell areas for all the cmdqs + * + * Return 0 - Success, negative - Failure + **/ +int hinic_init_cmdqs(struct hinic_cmdqs *cmdqs, struct hinic_hwif *hwif, + void __iomem **db_area) +{ + /* should be implemented */ + return -EINVAL; +} + +/** + * hinic_free_cmdqs - free all cmdqs + * @cmdqs: cmdqs to free + **/ +void hinic_free_cmdqs(struct hinic_cmdqs *cmdqs) +{ + /* should be implemented */ +} 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 +#include +#include +#include + +#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 diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c b/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c index 5ae1c3682be0..f29fea1dc9d2 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c @@ -25,6 +25,7 @@ #include "hinic_hw_if.h" #include "hinic_hw_eqs.h" #include "hinic_hw_mgmt.h" +#include "hinic_hw_qp_ctxt.h" #include "hinic_hw_qp.h" #include "hinic_hw_io.h" #include "hinic_hw_dev.h" @@ -76,6 +77,9 @@ static int get_capability(struct hinic_hwdev *hwdev, /* Each QP has its own (SQ + RQ) interrupts */ nic_cap->num_qps = (num_irqs - (num_aeqs + num_ceqs)) / 2; + if (nic_cap->num_qps > HINIC_Q_CTXT_MAX) + nic_cap->num_qps = HINIC_Q_CTXT_MAX; + /* num_qps must be power of 2 */ nic_cap->num_qps = BIT(fls(nic_cap->num_qps) - 1); diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c index ad12cc77dc5c..bb4b93fe622a 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c @@ -27,6 +27,8 @@ #include "hinic_hw_if.h" #include "hinic_hw_wqe.h" #include "hinic_hw_wq.h" +#include "hinic_hw_cmdq.h" +#include "hinic_hw_qp_ctxt.h" #include "hinic_hw_qp.h" #include "hinic_hw_io.h" @@ -40,6 +42,10 @@ #define DB_IDX(db, db_base) \ (((unsigned long)(db) - (unsigned long)(db_base)) / HINIC_DB_PAGE_SIZE) +enum io_cmd { + IO_CMD_MODIFY_QUEUE_CTXT = 0, +}; + static void init_db_area_idx(struct hinic_free_db_area *free_db_area) { int i; @@ -100,6 +106,109 @@ static void return_db_area(struct hinic_func_to_io *func_to_io, up(&free_db_area->idx_lock); } +static int write_sq_ctxts(struct hinic_func_to_io *func_to_io, u16 base_qpn, + u16 num_sqs) +{ + struct hinic_hwif *hwif = func_to_io->hwif; + struct hinic_sq_ctxt_block *sq_ctxt_block; + struct pci_dev *pdev = hwif->pdev; + struct hinic_cmdq_buf cmdq_buf; + struct hinic_sq_ctxt *sq_ctxt; + struct hinic_qp *qp; + u64 out_param; + int err, i; + + err = hinic_alloc_cmdq_buf(&func_to_io->cmdqs, &cmdq_buf); + if (err) { + dev_err(&pdev->dev, "Failed to allocate cmdq buf\n"); + return err; + } + + sq_ctxt_block = cmdq_buf.buf; + sq_ctxt = sq_ctxt_block->sq_ctxt; + + hinic_qp_prepare_header(&sq_ctxt_block->hdr, HINIC_QP_CTXT_TYPE_SQ, + num_sqs, func_to_io->max_qps); + for (i = 0; i < num_sqs; i++) { + qp = &func_to_io->qps[i]; + + hinic_sq_prepare_ctxt(&sq_ctxt[i], &qp->sq, + base_qpn + qp->q_id); + } + + cmdq_buf.size = HINIC_SQ_CTXT_SIZE(num_sqs); + + err = hinic_cmdq_direct_resp(&func_to_io->cmdqs, HINIC_MOD_L2NIC, + IO_CMD_MODIFY_QUEUE_CTXT, &cmdq_buf, + &out_param); + if ((err) || (out_param != 0)) { + dev_err(&pdev->dev, "Failed to set SQ ctxts\n"); + err = -EFAULT; + } + + hinic_free_cmdq_buf(&func_to_io->cmdqs, &cmdq_buf); + return err; +} + +static int write_rq_ctxts(struct hinic_func_to_io *func_to_io, u16 base_qpn, + u16 num_rqs) +{ + struct hinic_hwif *hwif = func_to_io->hwif; + struct hinic_rq_ctxt_block *rq_ctxt_block; + struct pci_dev *pdev = hwif->pdev; + struct hinic_cmdq_buf cmdq_buf; + struct hinic_rq_ctxt *rq_ctxt; + struct hinic_qp *qp; + u64 out_param; + int err, i; + + err = hinic_alloc_cmdq_buf(&func_to_io->cmdqs, &cmdq_buf); + if (err) { + dev_err(&pdev->dev, "Failed to allocate cmdq buf\n"); + return err; + } + + rq_ctxt_block = cmdq_buf.buf; + rq_ctxt = rq_ctxt_block->rq_ctxt; + + hinic_qp_prepare_header(&rq_ctxt_block->hdr, HINIC_QP_CTXT_TYPE_RQ, + num_rqs, func_to_io->max_qps); + for (i = 0; i < num_rqs; i++) { + qp = &func_to_io->qps[i]; + + hinic_rq_prepare_ctxt(&rq_ctxt[i], &qp->rq, + base_qpn + qp->q_id); + } + + cmdq_buf.size = HINIC_RQ_CTXT_SIZE(num_rqs); + + err = hinic_cmdq_direct_resp(&func_to_io->cmdqs, HINIC_MOD_L2NIC, + IO_CMD_MODIFY_QUEUE_CTXT, &cmdq_buf, + &out_param); + if ((err) || (out_param != 0)) { + dev_err(&pdev->dev, "Failed to set RQ ctxts\n"); + err = -EFAULT; + } + + hinic_free_cmdq_buf(&func_to_io->cmdqs, &cmdq_buf); + return err; +} + +/** + * write_qp_ctxts - write the qp ctxt to HW + * @func_to_io: func to io channel that holds the IO components + * @base_qpn: first qp number + * @num_qps: number of qps to write + * + * Return 0 - Success, negative - Failure + **/ +static int write_qp_ctxts(struct hinic_func_to_io *func_to_io, u16 base_qpn, + u16 num_qps) +{ + return (write_sq_ctxts(func_to_io, base_qpn, num_qps) || + write_rq_ctxts(func_to_io, base_qpn, num_qps)); +} + /** * init_qp - Initialize a Queue Pair * @func_to_io: func to io channel that holds the IO components @@ -265,8 +374,15 @@ int hinic_io_create_qps(struct hinic_func_to_io *func_to_io, } } + err = write_qp_ctxts(func_to_io, base_qpn, num_qps); + if (err) { + dev_err(&pdev->dev, "Failed to init QP ctxts\n"); + goto err_write_qp_ctxts; + } + return 0; +err_write_qp_ctxts: err_init_qp: for (j = 0; j < i; j++) destroy_qp(func_to_io, &func_to_io->qps[j]); @@ -331,6 +447,8 @@ int hinic_io_init(struct hinic_func_to_io *func_to_io, struct msix_entry *ceq_msix_entries) { struct pci_dev *pdev = hwif->pdev; + enum hinic_cmdq_type cmdq, type; + void __iomem *db_area; int err; func_to_io->hwif = hwif; @@ -351,8 +469,34 @@ int hinic_io_init(struct hinic_func_to_io *func_to_io, } init_db_area_idx(&func_to_io->free_db_area); + + for (cmdq = HINIC_CMDQ_SYNC; cmdq < HINIC_MAX_CMDQ_TYPES; cmdq++) { + db_area = get_db_area(func_to_io); + if (IS_ERR(db_area)) { + dev_err(&pdev->dev, "Failed to get cmdq db area\n"); + err = PTR_ERR(db_area); + goto err_db_area; + } + + func_to_io->cmdq_db_area[cmdq] = db_area; + } + + err = hinic_init_cmdqs(&func_to_io->cmdqs, hwif, + func_to_io->cmdq_db_area); + if (err) { + dev_err(&pdev->dev, "Failed to initialize cmdqs\n"); + goto err_init_cmdqs; + } + return 0; +err_init_cmdqs: +err_db_area: + for (type = HINIC_CMDQ_SYNC; type < cmdq; type++) + return_db_area(func_to_io, func_to_io->cmdq_db_area[type]); + + iounmap(func_to_io->db_base); + err_db_ioremap: hinic_wqs_free(&func_to_io->wqs); return err; @@ -364,6 +508,13 @@ int hinic_io_init(struct hinic_func_to_io *func_to_io, **/ void hinic_io_free(struct hinic_func_to_io *func_to_io) { + enum hinic_cmdq_type cmdq; + + hinic_free_cmdqs(&func_to_io->cmdqs); + + for (cmdq = HINIC_CMDQ_SYNC; cmdq < HINIC_MAX_CMDQ_TYPES; cmdq++) + return_db_area(func_to_io, func_to_io->cmdq_db_area[cmdq]); + iounmap(func_to_io->db_base); hinic_wqs_free(&func_to_io->wqs); } diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.h b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.h index 2d85a38a1df6..60d77b343fa7 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.h +++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.h @@ -23,6 +23,7 @@ #include "hinic_hw_if.h" #include "hinic_hw_wq.h" +#include "hinic_hw_cmdq.h" #include "hinic_hw_qp.h" #define HINIC_DB_PAGE_SIZE SZ_4K @@ -60,6 +61,10 @@ struct hinic_func_to_io { dma_addr_t ci_dma_base; struct hinic_free_db_area free_db_area; + + void __iomem *cmdq_db_area[HINIC_MAX_CMDQ_TYPES]; + + struct hinic_cmdqs cmdqs; }; int hinic_io_create_qps(struct hinic_func_to_io *func_to_io, diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.c b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.c index 2b77b592e90d..13e0ff3533a4 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.c @@ -21,13 +21,173 @@ #include #include #include +#include +#include +#include "hinic_common.h" #include "hinic_hw_if.h" #include "hinic_hw_wq.h" +#include "hinic_hw_qp_ctxt.h" #include "hinic_hw_qp.h" #define SQ_DB_OFF SZ_2K +/* The number of cache line to prefetch Until threshold state */ +#define WQ_PREFETCH_MAX 2 +/* The number of cache line to prefetch After threshold state */ +#define WQ_PREFETCH_MIN 1 +/* Threshold state */ +#define WQ_PREFETCH_THRESHOLD 256 + +/* sizes of the SQ/RQ ctxt */ +#define Q_CTXT_SIZE 48 +#define CTXT_RSVD 240 + +#define SQ_CTXT_OFFSET(max_sqs, max_rqs, q_id) \ + (((max_rqs) + (max_sqs)) * CTXT_RSVD + (q_id) * Q_CTXT_SIZE) + +#define RQ_CTXT_OFFSET(max_sqs, max_rqs, q_id) \ + (((max_rqs) + (max_sqs)) * CTXT_RSVD + \ + (max_sqs + (q_id)) * Q_CTXT_SIZE) + +#define SIZE_16BYTES(size) (ALIGN(size, 16) >> 4) + +void hinic_qp_prepare_header(struct hinic_qp_ctxt_header *qp_ctxt_hdr, + enum hinic_qp_ctxt_type ctxt_type, + u16 num_queues, u16 max_queues) +{ + u16 max_sqs = max_queues; + u16 max_rqs = max_queues; + + qp_ctxt_hdr->num_queues = num_queues; + qp_ctxt_hdr->queue_type = ctxt_type; + + if (ctxt_type == HINIC_QP_CTXT_TYPE_SQ) + qp_ctxt_hdr->addr_offset = SQ_CTXT_OFFSET(max_sqs, max_rqs, 0); + else + qp_ctxt_hdr->addr_offset = RQ_CTXT_OFFSET(max_sqs, max_rqs, 0); + + qp_ctxt_hdr->addr_offset = SIZE_16BYTES(qp_ctxt_hdr->addr_offset); + + hinic_cpu_to_be32(qp_ctxt_hdr, sizeof(*qp_ctxt_hdr)); +} + +void hinic_sq_prepare_ctxt(struct hinic_sq_ctxt *sq_ctxt, + struct hinic_sq *sq, u16 global_qid) +{ + u32 wq_page_pfn_hi, wq_page_pfn_lo, wq_block_pfn_hi, wq_block_pfn_lo; + u64 wq_page_addr, wq_page_pfn, wq_block_pfn; + u16 pi_start, ci_start; + struct hinic_wq *wq; + + wq = sq->wq; + ci_start = atomic_read(&wq->cons_idx); + pi_start = atomic_read(&wq->prod_idx); + + /* Read the first page paddr from the WQ page paddr ptrs */ + wq_page_addr = be64_to_cpu(*wq->block_vaddr); + + wq_page_pfn = HINIC_WQ_PAGE_PFN(wq_page_addr); + wq_page_pfn_hi = upper_32_bits(wq_page_pfn); + wq_page_pfn_lo = lower_32_bits(wq_page_pfn); + + wq_block_pfn = HINIC_WQ_BLOCK_PFN(wq->block_paddr); + wq_block_pfn_hi = upper_32_bits(wq_block_pfn); + wq_block_pfn_lo = lower_32_bits(wq_block_pfn); + + sq_ctxt->ceq_attr = HINIC_SQ_CTXT_CEQ_ATTR_SET(global_qid, + GLOBAL_SQ_ID) | + HINIC_SQ_CTXT_CEQ_ATTR_SET(0, EN); + + sq_ctxt->ci_wrapped = HINIC_SQ_CTXT_CI_SET(ci_start, IDX) | + HINIC_SQ_CTXT_CI_SET(1, WRAPPED); + + sq_ctxt->wq_hi_pfn_pi = + HINIC_SQ_CTXT_WQ_PAGE_SET(wq_page_pfn_hi, HI_PFN) | + HINIC_SQ_CTXT_WQ_PAGE_SET(pi_start, PI); + + sq_ctxt->wq_lo_pfn = wq_page_pfn_lo; + + sq_ctxt->pref_cache = + HINIC_SQ_CTXT_PREF_SET(WQ_PREFETCH_MIN, CACHE_MIN) | + HINIC_SQ_CTXT_PREF_SET(WQ_PREFETCH_MAX, CACHE_MAX) | + HINIC_SQ_CTXT_PREF_SET(WQ_PREFETCH_THRESHOLD, CACHE_THRESHOLD); + + sq_ctxt->pref_wrapped = 1; + + sq_ctxt->pref_wq_hi_pfn_ci = + HINIC_SQ_CTXT_PREF_SET(ci_start, CI) | + HINIC_SQ_CTXT_PREF_SET(wq_page_pfn_hi, WQ_HI_PFN); + + sq_ctxt->pref_wq_lo_pfn = wq_page_pfn_lo; + + sq_ctxt->wq_block_hi_pfn = + HINIC_SQ_CTXT_WQ_BLOCK_SET(wq_block_pfn_hi, HI_PFN); + + sq_ctxt->wq_block_lo_pfn = wq_block_pfn_lo; + + hinic_cpu_to_be32(sq_ctxt, sizeof(*sq_ctxt)); +} + +void hinic_rq_prepare_ctxt(struct hinic_rq_ctxt *rq_ctxt, + struct hinic_rq *rq, u16 global_qid) +{ + u32 wq_page_pfn_hi, wq_page_pfn_lo, wq_block_pfn_hi, wq_block_pfn_lo; + u64 wq_page_addr, wq_page_pfn, wq_block_pfn; + u16 pi_start, ci_start; + struct hinic_wq *wq; + + wq = rq->wq; + ci_start = atomic_read(&wq->cons_idx); + pi_start = atomic_read(&wq->prod_idx); + + /* Read the first page paddr from the WQ page paddr ptrs */ + wq_page_addr = be64_to_cpu(*wq->block_vaddr); + + wq_page_pfn = HINIC_WQ_PAGE_PFN(wq_page_addr); + wq_page_pfn_hi = upper_32_bits(wq_page_pfn); + wq_page_pfn_lo = lower_32_bits(wq_page_pfn); + + wq_block_pfn = HINIC_WQ_BLOCK_PFN(wq->block_paddr); + wq_block_pfn_hi = upper_32_bits(wq_block_pfn); + wq_block_pfn_lo = lower_32_bits(wq_block_pfn); + + rq_ctxt->ceq_attr = HINIC_RQ_CTXT_CEQ_ATTR_SET(0, EN) | + HINIC_RQ_CTXT_CEQ_ATTR_SET(1, WRAPPED); + + rq_ctxt->pi_intr_attr = HINIC_RQ_CTXT_PI_SET(pi_start, IDX) | + HINIC_RQ_CTXT_PI_SET(rq->msix_entry, INTR); + + rq_ctxt->wq_hi_pfn_ci = HINIC_RQ_CTXT_WQ_PAGE_SET(wq_page_pfn_hi, + HI_PFN) | + HINIC_RQ_CTXT_WQ_PAGE_SET(ci_start, CI); + + rq_ctxt->wq_lo_pfn = wq_page_pfn_lo; + + rq_ctxt->pref_cache = + HINIC_RQ_CTXT_PREF_SET(WQ_PREFETCH_MIN, CACHE_MIN) | + HINIC_RQ_CTXT_PREF_SET(WQ_PREFETCH_MAX, CACHE_MAX) | + HINIC_RQ_CTXT_PREF_SET(WQ_PREFETCH_THRESHOLD, CACHE_THRESHOLD); + + rq_ctxt->pref_wrapped = 1; + + rq_ctxt->pref_wq_hi_pfn_ci = + HINIC_RQ_CTXT_PREF_SET(wq_page_pfn_hi, WQ_HI_PFN) | + HINIC_RQ_CTXT_PREF_SET(ci_start, CI); + + rq_ctxt->pref_wq_lo_pfn = wq_page_pfn_lo; + + rq_ctxt->pi_paddr_hi = upper_32_bits(rq->pi_dma_addr); + rq_ctxt->pi_paddr_lo = lower_32_bits(rq->pi_dma_addr); + + rq_ctxt->wq_block_hi_pfn = + HINIC_RQ_CTXT_WQ_BLOCK_SET(wq_block_pfn_hi, HI_PFN); + + rq_ctxt->wq_block_lo_pfn = wq_block_pfn_lo; + + hinic_cpu_to_be32(rq_ctxt, sizeof(*rq_ctxt)); +} + /** * alloc_sq_skb_arr - allocate sq array for saved skb * @sq: HW Send Queue diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h index c5ec30dcda96..56d1f8b9ca65 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h +++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h @@ -24,6 +24,7 @@ #include "hinic_hw_if.h" #include "hinic_hw_wqe.h" #include "hinic_hw_wq.h" +#include "hinic_hw_qp_ctxt.h" #define HINIC_SQ_WQEBB_SIZE 64 #define HINIC_RQ_WQEBB_SIZE 32 @@ -78,6 +79,16 @@ struct hinic_qp { u16 q_id; }; +void hinic_qp_prepare_header(struct hinic_qp_ctxt_header *qp_ctxt_hdr, + enum hinic_qp_ctxt_type ctxt_type, + u16 num_queues, u16 max_queues); + +void hinic_sq_prepare_ctxt(struct hinic_sq_ctxt *sq_ctxt, + struct hinic_sq *sq, u16 global_qid); + +void hinic_rq_prepare_ctxt(struct hinic_rq_ctxt *rq_ctxt, + struct hinic_rq *rq, u16 global_qid); + int hinic_init_sq(struct hinic_sq *sq, struct hinic_hwif *hwif, struct hinic_wq *wq, struct msix_entry *entry, void *ci_addr, dma_addr_t ci_dma_addr, void __iomem *db_base); diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_qp_ctxt.h b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp_ctxt.h new file mode 100644 index 000000000000..376abf00762b --- /dev/null +++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp_ctxt.h @@ -0,0 +1,214 @@ +/* + * 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_HW_QP_CTXT_H +#define HINIC_HW_QP_CTXT_H + +#include + +#include "hinic_hw_cmdq.h" + +#define HINIC_SQ_CTXT_CEQ_ATTR_GLOBAL_SQ_ID_SHIFT 13 +#define HINIC_SQ_CTXT_CEQ_ATTR_EN_SHIFT 23 + +#define HINIC_SQ_CTXT_CEQ_ATTR_GLOBAL_SQ_ID_MASK 0x3FF +#define HINIC_SQ_CTXT_CEQ_ATTR_EN_MASK 0x1 + +#define HINIC_SQ_CTXT_CEQ_ATTR_SET(val, member) \ + (((u32)(val) & HINIC_SQ_CTXT_CEQ_ATTR_##member##_MASK) \ + << HINIC_SQ_CTXT_CEQ_ATTR_##member##_SHIFT) + +#define HINIC_SQ_CTXT_CI_IDX_SHIFT 11 +#define HINIC_SQ_CTXT_CI_WRAPPED_SHIFT 23 + +#define HINIC_SQ_CTXT_CI_IDX_MASK 0xFFF +#define HINIC_SQ_CTXT_CI_WRAPPED_MASK 0x1 + +#define HINIC_SQ_CTXT_CI_SET(val, member) \ + (((u32)(val) & HINIC_SQ_CTXT_CI_##member##_MASK) \ + << HINIC_SQ_CTXT_CI_##member##_SHIFT) + +#define HINIC_SQ_CTXT_WQ_PAGE_HI_PFN_SHIFT 0 +#define HINIC_SQ_CTXT_WQ_PAGE_PI_SHIFT 20 + +#define HINIC_SQ_CTXT_WQ_PAGE_HI_PFN_MASK 0xFFFFF +#define HINIC_SQ_CTXT_WQ_PAGE_PI_MASK 0xFFF + +#define HINIC_SQ_CTXT_WQ_PAGE_SET(val, member) \ + (((u32)(val) & HINIC_SQ_CTXT_WQ_PAGE_##member##_MASK) \ + << HINIC_SQ_CTXT_WQ_PAGE_##member##_SHIFT) + +#define HINIC_SQ_CTXT_PREF_CACHE_THRESHOLD_SHIFT 0 +#define HINIC_SQ_CTXT_PREF_CACHE_MAX_SHIFT 14 +#define HINIC_SQ_CTXT_PREF_CACHE_MIN_SHIFT 25 + +#define HINIC_SQ_CTXT_PREF_CACHE_THRESHOLD_MASK 0x3FFF +#define HINIC_SQ_CTXT_PREF_CACHE_MAX_MASK 0x7FF +#define HINIC_SQ_CTXT_PREF_CACHE_MIN_MASK 0x7F + +#define HINIC_SQ_CTXT_PREF_WQ_HI_PFN_SHIFT 0 +#define HINIC_SQ_CTXT_PREF_CI_SHIFT 20 + +#define HINIC_SQ_CTXT_PREF_WQ_HI_PFN_MASK 0xFFFFF +#define HINIC_SQ_CTXT_PREF_CI_MASK 0xFFF + +#define HINIC_SQ_CTXT_PREF_SET(val, member) \ + (((u32)(val) & HINIC_SQ_CTXT_PREF_##member##_MASK) \ + << HINIC_SQ_CTXT_PREF_##member##_SHIFT) + +#define HINIC_SQ_CTXT_WQ_BLOCK_HI_PFN_SHIFT 0 + +#define HINIC_SQ_CTXT_WQ_BLOCK_HI_PFN_MASK 0x7FFFFF + +#define HINIC_SQ_CTXT_WQ_BLOCK_SET(val, member) \ + (((u32)(val) & HINIC_SQ_CTXT_WQ_BLOCK_##member##_MASK) \ + << HINIC_SQ_CTXT_WQ_BLOCK_##member##_SHIFT) + +#define HINIC_RQ_CTXT_CEQ_ATTR_EN_SHIFT 0 +#define HINIC_RQ_CTXT_CEQ_ATTR_WRAPPED_SHIFT 1 + +#define HINIC_RQ_CTXT_CEQ_ATTR_EN_MASK 0x1 +#define HINIC_RQ_CTXT_CEQ_ATTR_WRAPPED_MASK 0x1 + +#define HINIC_RQ_CTXT_CEQ_ATTR_SET(val, member) \ + (((u32)(val) & HINIC_RQ_CTXT_CEQ_ATTR_##member##_MASK) \ + << HINIC_RQ_CTXT_CEQ_ATTR_##member##_SHIFT) + +#define HINIC_RQ_CTXT_PI_IDX_SHIFT 0 +#define HINIC_RQ_CTXT_PI_INTR_SHIFT 22 + +#define HINIC_RQ_CTXT_PI_IDX_MASK 0xFFF +#define HINIC_RQ_CTXT_PI_INTR_MASK 0x3FF + +#define HINIC_RQ_CTXT_PI_SET(val, member) \ + (((u32)(val) & HINIC_RQ_CTXT_PI_##member##_MASK) << \ + HINIC_RQ_CTXT_PI_##member##_SHIFT) + +#define HINIC_RQ_CTXT_WQ_PAGE_HI_PFN_SHIFT 0 +#define HINIC_RQ_CTXT_WQ_PAGE_CI_SHIFT 20 + +#define HINIC_RQ_CTXT_WQ_PAGE_HI_PFN_MASK 0xFFFFF +#define HINIC_RQ_CTXT_WQ_PAGE_CI_MASK 0xFFF + +#define HINIC_RQ_CTXT_WQ_PAGE_SET(val, member) \ + (((u32)(val) & HINIC_RQ_CTXT_WQ_PAGE_##member##_MASK) << \ + HINIC_RQ_CTXT_WQ_PAGE_##member##_SHIFT) + +#define HINIC_RQ_CTXT_PREF_CACHE_THRESHOLD_SHIFT 0 +#define HINIC_RQ_CTXT_PREF_CACHE_MAX_SHIFT 14 +#define HINIC_RQ_CTXT_PREF_CACHE_MIN_SHIFT 25 + +#define HINIC_RQ_CTXT_PREF_CACHE_THRESHOLD_MASK 0x3FFF +#define HINIC_RQ_CTXT_PREF_CACHE_MAX_MASK 0x7FF +#define HINIC_RQ_CTXT_PREF_CACHE_MIN_MASK 0x7F + +#define HINIC_RQ_CTXT_PREF_WQ_HI_PFN_SHIFT 0 +#define HINIC_RQ_CTXT_PREF_CI_SHIFT 20 + +#define HINIC_RQ_CTXT_PREF_WQ_HI_PFN_MASK 0xFFFFF +#define HINIC_RQ_CTXT_PREF_CI_MASK 0xFFF + +#define HINIC_RQ_CTXT_PREF_SET(val, member) \ + (((u32)(val) & HINIC_RQ_CTXT_PREF_##member##_MASK) << \ + HINIC_RQ_CTXT_PREF_##member##_SHIFT) + +#define HINIC_RQ_CTXT_WQ_BLOCK_HI_PFN_SHIFT 0 + +#define HINIC_RQ_CTXT_WQ_BLOCK_HI_PFN_MASK 0x7FFFFF + +#define HINIC_RQ_CTXT_WQ_BLOCK_SET(val, member) \ + (((u32)(val) & HINIC_RQ_CTXT_WQ_BLOCK_##member##_MASK) << \ + HINIC_RQ_CTXT_WQ_BLOCK_##member##_SHIFT) + +#define HINIC_SQ_CTXT_SIZE(num_sqs) (sizeof(struct hinic_qp_ctxt_header) \ + + (num_sqs) * sizeof(struct hinic_sq_ctxt)) + +#define HINIC_RQ_CTXT_SIZE(num_rqs) (sizeof(struct hinic_qp_ctxt_header) \ + + (num_rqs) * sizeof(struct hinic_rq_ctxt)) + +#define HINIC_WQ_PAGE_PFN_SHIFT 12 +#define HINIC_WQ_BLOCK_PFN_SHIFT 9 + +#define HINIC_WQ_PAGE_PFN(page_addr) ((page_addr) >> HINIC_WQ_PAGE_PFN_SHIFT) +#define HINIC_WQ_BLOCK_PFN(page_addr) ((page_addr) >> \ + HINIC_WQ_BLOCK_PFN_SHIFT) + +#define HINIC_Q_CTXT_MAX \ + ((HINIC_CMDQ_BUF_SIZE - sizeof(struct hinic_qp_ctxt_header)) \ + / sizeof(struct hinic_sq_ctxt)) + +enum hinic_qp_ctxt_type { + HINIC_QP_CTXT_TYPE_SQ, + HINIC_QP_CTXT_TYPE_RQ +}; + +struct hinic_qp_ctxt_header { + u16 num_queues; + u16 queue_type; + u32 addr_offset; +}; + +struct hinic_sq_ctxt { + u32 ceq_attr; + + u32 ci_wrapped; + + u32 wq_hi_pfn_pi; + u32 wq_lo_pfn; + + u32 pref_cache; + u32 pref_wrapped; + u32 pref_wq_hi_pfn_ci; + u32 pref_wq_lo_pfn; + + u32 rsvd0; + u32 rsvd1; + + u32 wq_block_hi_pfn; + u32 wq_block_lo_pfn; +}; + +struct hinic_rq_ctxt { + u32 ceq_attr; + + u32 pi_intr_attr; + + u32 wq_hi_pfn_ci; + u32 wq_lo_pfn; + + u32 pref_cache; + u32 pref_wrapped; + + u32 pref_wq_hi_pfn_ci; + u32 pref_wq_lo_pfn; + + u32 pi_paddr_hi; + u32 pi_paddr_lo; + + u32 wq_block_hi_pfn; + u32 wq_block_lo_pfn; +}; + +struct hinic_sq_ctxt_block { + struct hinic_qp_ctxt_header hdr; + struct hinic_sq_ctxt sq_ctxt[HINIC_Q_CTXT_MAX]; +}; + +struct hinic_rq_ctxt_block { + struct hinic_qp_ctxt_header hdr; + struct hinic_rq_ctxt rq_ctxt[HINIC_Q_CTXT_MAX]; +}; + +#endif diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_wq.h b/drivers/net/ethernet/huawei/hinic/hinic_hw_wq.h index 7c114daf13ef..8ce259ace24a 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_hw_wq.h +++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_wq.h @@ -72,6 +72,15 @@ struct hinic_wqs { struct semaphore alloc_blocks_lock; }; +struct hinic_cmdq_pages { + /* The addresses are 64 bit in the HW */ + u64 page_paddr; + u64 *page_vaddr; + void **shadow_page_vaddr; + + struct hinic_hwif *hwif; +}; + int hinic_wqs_alloc(struct hinic_wqs *wqs, int num_wqs, struct hinic_hwif *hwif);