Create the resources for queue pair operations: doorbell area,
consumer index address and producer index address.

Signed-off-by: Aviad Krawczyk <aviad.krawc...@huawei.com>
Signed-off-by: Zhao Chen <zhaoch...@huawei.com>
---
 drivers/net/ethernet/huawei/hinic/Makefile      |   4 +-
 drivers/net/ethernet/huawei/hinic/hinic_hw_if.h |   1 +
 drivers/net/ethernet/huawei/hinic/hinic_hw_io.c | 164 ++++++++++++++-
 drivers/net/ethernet/huawei/hinic/hinic_hw_io.h |  27 +++
 drivers/net/ethernet/huawei/hinic/hinic_hw_qp.c | 266 ++++++++++++++++++++++++
 drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h |  50 ++++-
 6 files changed, 507 insertions(+), 5 deletions(-)
 create mode 100644 drivers/net/ethernet/huawei/hinic/hinic_hw_qp.c

diff --git a/drivers/net/ethernet/huawei/hinic/Makefile 
b/drivers/net/ethernet/huawei/hinic/Makefile
index 0575a34..84815f7 100644
--- a/drivers/net/ethernet/huawei/hinic/Makefile
+++ b/drivers/net/ethernet/huawei/hinic/Makefile
@@ -1,5 +1,5 @@
 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_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_wq.o hinic_hw_mgmt.o \
+          hinic_hw_api_cmd.o hinic_hw_eqs.o hinic_hw_if.o
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_if.h 
b/drivers/net/ethernet/huawei/hinic/hinic_hw_if.h
index 2280698..8f59195 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_if.h
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_if.h
@@ -137,6 +137,7 @@
 #define HINIC_IS_PPF(hwif)              (HINIC_FUNC_TYPE(hwif) == HINIC_PPF)
 
 #define HINIC_PCI_CFG_REGS_BAR          0
+#define HINIC_PCI_DB_BAR                4
 
 #define HINIC_PCIE_ST_DISABLE           0
 #define HINIC_PCIE_AT_DISABLE           0
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c 
b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c
index 1bf944e..ad12cc7 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c
@@ -13,11 +13,16 @@
  *
  */
 
+#include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/device.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
+#include <linux/semaphore.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/err.h>
 
 #include "hinic_hw_if.h"
 #include "hinic_hw_wqe.h"
@@ -25,6 +30,76 @@
 #include "hinic_hw_qp.h"
 #include "hinic_hw_io.h"
 
+#define CI_Q_ADDR_SIZE                  sizeof(u32)
+
+#define CI_ADDR(base_addr, q_id)        ((base_addr) + \
+                                        (q_id) * CI_Q_ADDR_SIZE)
+
+#define CI_TABLE_SIZE(num_qps)          ((num_qps) * CI_Q_ADDR_SIZE)
+
+#define DB_IDX(db, db_base)             \
+       (((unsigned long)(db) - (unsigned long)(db_base)) / HINIC_DB_PAGE_SIZE)
+
+static void init_db_area_idx(struct hinic_free_db_area *free_db_area)
+{
+       int i;
+
+       for (i = 0; i < HINIC_DB_MAX_AREAS; i++)
+               free_db_area->db_idx[i] = i;
+
+       free_db_area->alloc_pos = 0;
+       free_db_area->return_pos = HINIC_DB_MAX_AREAS;
+
+       free_db_area->num_free = HINIC_DB_MAX_AREAS;
+
+       sema_init(&free_db_area->idx_lock, 1);
+}
+
+static void __iomem *get_db_area(struct hinic_func_to_io *func_to_io)
+{
+       struct hinic_free_db_area *free_db_area = &func_to_io->free_db_area;
+       int pos, idx;
+
+       down(&free_db_area->idx_lock);
+
+       free_db_area->num_free--;
+
+       if (free_db_area->num_free < 0) {
+               free_db_area->num_free++;
+               up(&free_db_area->idx_lock);
+               return ERR_PTR(-ENOMEM);
+       }
+
+       pos = free_db_area->alloc_pos++;
+       pos &= HINIC_DB_MAX_AREAS - 1;
+
+       idx = free_db_area->db_idx[pos];
+
+       free_db_area->db_idx[pos] = -1;
+
+       up(&free_db_area->idx_lock);
+
+       return func_to_io->db_base + idx * HINIC_DB_PAGE_SIZE;
+}
+
+static void return_db_area(struct hinic_func_to_io *func_to_io,
+                          void __iomem *db_base)
+{
+       struct hinic_free_db_area *free_db_area = &func_to_io->free_db_area;
+       int pos, idx = DB_IDX(db_base, func_to_io->db_base);
+
+       down(&free_db_area->idx_lock);
+
+       pos = free_db_area->return_pos++;
+       pos &= HINIC_DB_MAX_AREAS - 1;
+
+       free_db_area->db_idx[pos] = idx;
+
+       free_db_area->num_free++;
+
+       up(&free_db_area->idx_lock);
+}
+
 /**
  * init_qp - Initialize a Queue Pair
  * @func_to_io: func to io channel that holds the IO components
@@ -42,6 +117,7 @@ static int init_qp(struct hinic_func_to_io *func_to_io,
 {
        struct hinic_hwif *hwif = func_to_io->hwif;
        struct pci_dev *pdev = hwif->pdev;
+       void __iomem *db_base;
        int err;
 
        qp->q_id = q_id;
@@ -62,8 +138,42 @@ static int init_qp(struct hinic_func_to_io *func_to_io,
                goto err_rq_alloc;
        }
 
+       db_base = get_db_area(func_to_io);
+       if (IS_ERR(db_base)) {
+               dev_err(&pdev->dev, "Failed to get DB area for SQ\n");
+               err = PTR_ERR(db_base);
+               goto err_get_db;
+       }
+
+       func_to_io->sq_db[q_id] = db_base;
+
+       err = hinic_init_sq(&qp->sq, hwif, &func_to_io->sq_wq[q_id],
+                           sq_msix_entry,
+                           CI_ADDR(func_to_io->ci_addr_base, q_id),
+                           CI_ADDR(func_to_io->ci_dma_base, q_id), db_base);
+       if (err) {
+               dev_err(&pdev->dev, "Failed to init SQ\n");
+               goto err_sq_init;
+       }
+
+       err = hinic_init_rq(&qp->rq, hwif, &func_to_io->rq_wq[q_id],
+                           rq_msix_entry);
+       if (err) {
+               dev_err(&pdev->dev, "Failed to init RQ\n");
+               goto err_rq_init;
+       }
+
        return 0;
 
+err_rq_init:
+       hinic_clean_sq(&qp->sq);
+
+err_sq_init:
+       return_db_area(func_to_io, db_base);
+
+err_get_db:
+       hinic_wq_free(&func_to_io->wqs, &func_to_io->rq_wq[q_id]);
+
 err_rq_alloc:
        hinic_wq_free(&func_to_io->wqs, &func_to_io->sq_wq[q_id]);
        return err;
@@ -79,6 +189,11 @@ static void destroy_qp(struct hinic_func_to_io *func_to_io,
 {
        int q_id = qp->q_id;
 
+       hinic_clean_rq(&qp->rq);
+       hinic_clean_sq(&qp->sq);
+
+       return_db_area(func_to_io, func_to_io->sq_db[q_id]);
+
        hinic_wq_free(&func_to_io->wqs, &func_to_io->rq_wq[q_id]);
        hinic_wq_free(&func_to_io->wqs, &func_to_io->sq_wq[q_id]);
 }
@@ -100,7 +215,8 @@ int hinic_io_create_qps(struct hinic_func_to_io *func_to_io,
 {
        struct hinic_hwif *hwif = func_to_io->hwif;
        struct pci_dev *pdev = hwif->pdev;
-       size_t qps_size, wq_size;
+       size_t qps_size, wq_size, db_size;
+       void *ci_addr_base;
        int i, j, err;
 
        qps_size = num_qps * sizeof(*func_to_io->qps);
@@ -122,6 +238,24 @@ int hinic_io_create_qps(struct hinic_func_to_io 
*func_to_io,
                goto err_rq_wq;
        }
 
+       db_size = num_qps * sizeof(*func_to_io->sq_db);
+       func_to_io->sq_db = devm_kzalloc(&pdev->dev, db_size, GFP_KERNEL);
+       if (!func_to_io->sq_db) {
+               err = -ENOMEM;
+               goto err_sq_db;
+       }
+
+       ci_addr_base = dma_zalloc_coherent(&pdev->dev, CI_TABLE_SIZE(num_qps),
+                                          &func_to_io->ci_dma_base,
+                                          GFP_KERNEL);
+       if (!ci_addr_base) {
+               dev_err(&pdev->dev, "Failed to allocate CI area\n");
+               err = -ENOMEM;
+               goto err_ci_base;
+       }
+
+       func_to_io->ci_addr_base = ci_addr_base;
+
        for (i = 0; i < num_qps; i++) {
                err = init_qp(func_to_io, &func_to_io->qps[i], i,
                              &sq_msix_entries[i], &rq_msix_entries[i]);
@@ -137,6 +271,13 @@ int hinic_io_create_qps(struct hinic_func_to_io 
*func_to_io,
        for (j = 0; j < i; j++)
                destroy_qp(func_to_io, &func_to_io->qps[j]);
 
+       dma_free_coherent(&pdev->dev, CI_TABLE_SIZE(num_qps),
+                         func_to_io->ci_addr_base, func_to_io->ci_dma_base);
+
+err_ci_base:
+       devm_kfree(&pdev->dev, func_to_io->sq_db);
+
+err_sq_db:
        devm_kfree(&pdev->dev, func_to_io->rq_wq);
 
 err_rq_wq:
@@ -156,11 +297,19 @@ void hinic_io_destroy_qps(struct hinic_func_to_io 
*func_to_io, int num_qps)
 {
        struct hinic_hwif *hwif = func_to_io->hwif;
        struct pci_dev *pdev = hwif->pdev;
+       size_t ci_table_size;
        int i;
 
+       ci_table_size = CI_TABLE_SIZE(num_qps);
+
        for (i = 0; i < num_qps; i++)
                destroy_qp(func_to_io, &func_to_io->qps[i]);
 
+       dma_free_coherent(&pdev->dev, ci_table_size, func_to_io->ci_addr_base,
+                         func_to_io->ci_dma_base);
+
+       devm_kfree(&pdev->dev, func_to_io->sq_db);
+
        devm_kfree(&pdev->dev, func_to_io->rq_wq);
        devm_kfree(&pdev->dev, func_to_io->sq_wq);
 
@@ -194,7 +343,19 @@ int hinic_io_init(struct hinic_func_to_io *func_to_io,
                return err;
        }
 
+       func_to_io->db_base = pci_ioremap_bar(pdev, HINIC_PCI_DB_BAR);
+       if (!func_to_io->db_base) {
+               dev_err(&pdev->dev, "Failed to remap IO DB area\n");
+               err = -ENOMEM;
+               goto err_db_ioremap;
+       }
+
+       init_db_area_idx(&func_to_io->free_db_area);
        return 0;
+
+err_db_ioremap:
+       hinic_wqs_free(&func_to_io->wqs);
+       return err;
 }
 
 /**
@@ -203,5 +364,6 @@ int hinic_io_init(struct hinic_func_to_io *func_to_io,
  **/
 void hinic_io_free(struct hinic_func_to_io *func_to_io)
 {
+       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 6cacb8e..2d85a38 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.h
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.h
@@ -18,11 +18,30 @@
 
 #include <linux/types.h>
 #include <linux/pci.h>
+#include <linux/semaphore.h>
+#include <linux/sizes.h>
 
 #include "hinic_hw_if.h"
 #include "hinic_hw_wq.h"
 #include "hinic_hw_qp.h"
 
+#define HINIC_DB_PAGE_SIZE      SZ_4K
+#define HINIC_DB_SIZE           SZ_4M
+
+#define HINIC_DB_MAX_AREAS      (HINIC_DB_SIZE / HINIC_DB_PAGE_SIZE)
+
+struct hinic_free_db_area {
+       int             db_idx[HINIC_DB_MAX_AREAS];
+
+       int             alloc_pos;
+       int             return_pos;
+
+       int             num_free;
+
+       /* Lock for getting db area */
+       struct semaphore        idx_lock;
+};
+
 struct hinic_func_to_io {
        struct hinic_hwif       *hwif;
 
@@ -33,6 +52,14 @@ struct hinic_func_to_io {
 
        struct hinic_qp         *qps;
        u16                     max_qps;
+
+       void __iomem            **sq_db;
+       void __iomem            *db_base;
+
+       void                    *ci_addr_base;
+       dma_addr_t              ci_dma_base;
+
+       struct hinic_free_db_area       free_db_area;
 };
 
 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
new file mode 100644
index 0000000..2b77b59
--- /dev/null
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.c
@@ -0,0 +1,266 @@
+/*
+ * 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 <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/vmalloc.h>
+#include <linux/errno.h>
+#include <linux/sizes.h>
+
+#include "hinic_hw_if.h"
+#include "hinic_hw_wq.h"
+#include "hinic_hw_qp.h"
+
+#define SQ_DB_OFF               SZ_2K
+
+/**
+ * alloc_sq_skb_arr - allocate sq array for saved skb
+ * @sq: HW Send Queue
+ *
+ * Return 0 - Success, negative - Failure
+ **/
+static int alloc_sq_skb_arr(struct hinic_sq *sq)
+{
+       struct hinic_wq *wq = sq->wq;
+       size_t skb_arr_size;
+
+       skb_arr_size = wq->q_depth * sizeof(*sq->saved_skb);
+       sq->saved_skb = vzalloc(skb_arr_size);
+       if (!sq->saved_skb)
+               return -ENOMEM;
+
+       return 0;
+}
+
+/**
+ * free_sq_skb_arr - free sq array for saved skb
+ * @sq: HW Send Queue
+ **/
+static void free_sq_skb_arr(struct hinic_sq *sq)
+{
+       vfree(sq->saved_skb);
+}
+
+/**
+ * alloc_rq_skb_arr - allocate rq array for saved skb
+ * @rq: HW Receive Queue
+ *
+ * Return 0 - Success, negative - Failure
+ **/
+static int alloc_rq_skb_arr(struct hinic_rq *rq)
+{
+       struct hinic_wq *wq = rq->wq;
+       size_t skb_arr_size;
+
+       skb_arr_size = wq->q_depth * sizeof(*rq->saved_skb);
+       rq->saved_skb = vzalloc(skb_arr_size);
+       if (!rq->saved_skb)
+               return -ENOMEM;
+
+       return 0;
+}
+
+/**
+ * free_rq_skb_arr - free rq array for saved skb
+ * @rq: HW Receive Queue
+ **/
+static void free_rq_skb_arr(struct hinic_rq *rq)
+{
+       vfree(rq->saved_skb);
+}
+
+/**
+ * hinic_init_sq - Initialize HW Send Queue
+ * @sq: HW Send Queue
+ * @hwif: HW Interface for accessing HW
+ * @wq: Work Queue for the data of the SQ
+ * @entry: msix entry for sq
+ * @ci_addr: address for reading the current HW consumer index
+ * @ci_dma_addr: dma address for reading the current HW consumer index
+ * @db_base: doorbell base address
+ *
+ * Return 0 - Success, negative - Failure
+ **/
+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)
+{
+       sq->hwif = hwif;
+
+       sq->wq = wq;
+
+       sq->irq = entry->vector;
+       sq->msix_entry = entry->entry;
+
+       sq->hw_ci_addr = ci_addr;
+       sq->hw_ci_dma_addr = ci_dma_addr;
+
+       sq->db_base = db_base + SQ_DB_OFF;
+
+       return alloc_sq_skb_arr(sq);
+}
+
+/**
+ * hinic_clean_sq - Clean HW Send Queue's Resources
+ * @sq: Send Queue
+ **/
+void hinic_clean_sq(struct hinic_sq *sq)
+{
+       free_sq_skb_arr(sq);
+}
+
+/**
+ * alloc_rq_cqe - allocate rq completion queue elements
+ * @rq: HW Receive Queue
+ *
+ * Return 0 - Success, negative - Failure
+ **/
+static int alloc_rq_cqe(struct hinic_rq *rq)
+{
+       struct hinic_hwif *hwif = rq->hwif;
+       struct pci_dev *pdev = hwif->pdev;
+       size_t cqe_dma_size, cqe_size;
+       struct hinic_wq *wq = rq->wq;
+       int j, i;
+
+       cqe_size = wq->q_depth * sizeof(*rq->cqe);
+       rq->cqe = vzalloc(cqe_size);
+       if (!rq->cqe)
+               return -ENOMEM;
+
+       cqe_dma_size = wq->q_depth * sizeof(*rq->cqe_dma);
+       rq->cqe_dma = vzalloc(cqe_dma_size);
+       if (!rq->cqe_dma)
+               goto err_cqe_dma_arr_alloc;
+
+       for (i = 0; i < wq->q_depth; i++) {
+               rq->cqe[i] = dma_zalloc_coherent(&pdev->dev,
+                                                sizeof(*rq->cqe[i]),
+                                                &rq->cqe_dma[i], GFP_KERNEL);
+               if (!rq->cqe[i])
+                       goto err_cqe_alloc;
+       }
+
+       return 0;
+
+err_cqe_alloc:
+       for (j = 0; j < i; j++)
+               dma_free_coherent(&pdev->dev, sizeof(*rq->cqe[j]), rq->cqe[j],
+                                 rq->cqe_dma[j]);
+
+       vfree(rq->cqe_dma);
+
+err_cqe_dma_arr_alloc:
+       vfree(rq->cqe);
+       return -ENOMEM;
+}
+
+/**
+ * free_rq_cqe - free rq completion queue elements
+ * @rq: HW Receive Queue
+ **/
+static void free_rq_cqe(struct hinic_rq *rq)
+{
+       struct hinic_hwif *hwif = rq->hwif;
+       struct pci_dev *pdev = hwif->pdev;
+       struct hinic_wq *wq = rq->wq;
+       int i;
+
+       for (i = 0; i < wq->q_depth; i++)
+               dma_free_coherent(&pdev->dev, sizeof(*rq->cqe[i]), rq->cqe[i],
+                                 rq->cqe_dma[i]);
+
+       vfree(rq->cqe_dma);
+       vfree(rq->cqe);
+}
+
+/**
+ * hinic_init_rq - Initialize HW Receive Queue
+ * @rq: HW Receive Queue
+ * @hwif: HW Interface for accessing HW
+ * @wq: Work Queue for the data of the RQ
+ * @entry: msix entry for rq
+ *
+ * Return 0 - Success, negative - Failure
+ **/
+int hinic_init_rq(struct hinic_rq *rq, struct hinic_hwif *hwif,
+                 struct hinic_wq *wq, struct msix_entry *entry)
+{
+       struct pci_dev *pdev = hwif->pdev;
+       size_t pi_size;
+       int err;
+
+       rq->hwif = hwif;
+
+       rq->wq = wq;
+
+       rq->irq = entry->vector;
+       rq->msix_entry = entry->entry;
+
+       rq->buf_sz = HINIC_RX_BUF_SZ;
+
+       err = alloc_rq_skb_arr(rq);
+       if (err) {
+               dev_err(&pdev->dev, "Failed to allocate rq priv data\n");
+               return err;
+       }
+
+       err = alloc_rq_cqe(rq);
+       if (err) {
+               dev_err(&pdev->dev, "Failed to allocate rq cqe\n");
+               goto err_alloc_rq_cqe;
+       }
+
+       /* HW requirements: Must be at least 32 bit */
+       pi_size = ALIGN(sizeof(*rq->pi_virt_addr), sizeof(u32));
+       rq->pi_virt_addr = dma_zalloc_coherent(&pdev->dev, pi_size,
+                                              &rq->pi_dma_addr, GFP_KERNEL);
+       if (!rq->pi_virt_addr) {
+               dev_err(&pdev->dev, "Failed to allocate PI address\n");
+               err = -ENOMEM;
+               goto err_pi_virt;
+       }
+
+       return 0;
+
+err_pi_virt:
+       free_rq_cqe(rq);
+
+err_alloc_rq_cqe:
+       free_rq_skb_arr(rq);
+       return err;
+}
+
+/**
+ * hinic_clean_rq - Clean HW Receive Queue's Resources
+ * @rq: HW Receive Queue
+ **/
+void hinic_clean_rq(struct hinic_rq *rq)
+{
+       struct hinic_hwif *hwif = rq->hwif;
+       struct pci_dev *pdev = hwif->pdev;
+       size_t pi_size;
+
+       pi_size = ALIGN(sizeof(*rq->pi_virt_addr), sizeof(u32));
+       dma_free_coherent(&pdev->dev, pi_size, rq->pi_virt_addr,
+                         rq->pi_dma_addr);
+
+       free_rq_cqe(rq);
+       free_rq_skb_arr(rq);
+}
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h 
b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h
index 4031728..c5ec30d 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h
@@ -18,6 +18,12 @@
 
 #include <linux/types.h>
 #include <linux/sizes.h>
+#include <linux/pci.h>
+#include <linux/skbuff.h>
+
+#include "hinic_hw_if.h"
+#include "hinic_hw_wqe.h"
+#include "hinic_hw_wq.h"
 
 #define HINIC_SQ_WQEBB_SIZE                     64
 #define HINIC_RQ_WQEBB_SIZE                     32
@@ -28,12 +34,41 @@
 #define HINIC_SQ_DEPTH                          SZ_4K
 #define HINIC_RQ_DEPTH                          SZ_4K
 
+#define HINIC_RX_BUF_SZ                         2048
+
 struct hinic_sq {
-       /* should be implemented */
+       struct hinic_hwif       *hwif;
+
+       struct hinic_wq         *wq;
+
+       u32                     irq;
+       u16                     msix_entry;
+
+       void                    *hw_ci_addr;
+       dma_addr_t              hw_ci_dma_addr;
+
+       void __iomem            *db_base;
+
+       struct sk_buff          **saved_skb;
 };
 
 struct hinic_rq {
-       /* should be implemented */
+       struct hinic_hwif       *hwif;
+
+       struct hinic_wq         *wq;
+
+       u32                     irq;
+       u16                     msix_entry;
+
+       size_t                  buf_sz;
+
+       struct sk_buff          **saved_skb;
+
+       struct hinic_rq_cqe     **cqe;
+       dma_addr_t              *cqe_dma;
+
+       u16                     *pi_virt_addr;
+       dma_addr_t              pi_dma_addr;
 };
 
 struct hinic_qp {
@@ -43,4 +78,15 @@ struct hinic_qp {
        u16     q_id;
 };
 
+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);
+
+void hinic_clean_sq(struct hinic_sq *sq);
+
+int hinic_init_rq(struct hinic_rq *rq, struct hinic_hwif *hwif,
+                 struct hinic_wq *wq, struct msix_entry *entry);
+
+void hinic_clean_rq(struct hinic_rq *rq);
+
 #endif
-- 
1.9.1

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