[PATCH net-next 4/7] qed: PD,PKEY and CQ verb support

Yuval Mintz
2016-10-01T18:59:58Z

From: Ram Amrani <Ram.Amrani-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org>

Add support for the configurations of the protection domain and
completion queues.

Signed-off-by: Ram Amrani <Ram.Amrani-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org>
Signed-off-by: Yuval Mintz <Yuval.Mintz-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org>
---
drivers/net/ethernet/qlogic/qed/qed_roce.c | 324 +++++++++++++++++++++++++++++
drivers/net/ethernet/qlogic/qed/qed_roce.h | 21 ++
include/linux/qed/qed_roce_if.h | 30 +++
3 files changed, 375 insertions(+)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.c b/drivers/net/ethernet/qlogic/qed/qed_roce.c
index 4c53b85..f955164 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_roce.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_roce.c
@@ -663,6 +663,22 @@ int qed_rdma_add_user(void *rdma_cxt,
return rc;
}

+struct qed_rdma_port *qed_rdma_query_port(void *rdma_cxt)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ struct qed_rdma_port *p_port = p_hwfn->p_rdma_info->port;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA Query port\n");
+
+ /* Link may have changed */
+ p_port->port_state = p_hwfn->mcp_info->link_output.link_up ?
+ QED_RDMA_PORT_UP : QED_RDMA_PORT_DOWN;
+
+ p_port->link_speed = p_hwfn->mcp_info->link_output.speed;
+
+ return p_port;
+}
+
struct qed_rdma_device *qed_rdma_query_device(void *rdma_cxt)
{
struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
@@ -788,6 +804,309 @@ static int qed_rdma_get_int(struct qed_dev *cdev, struct qed_int_info *info)
return 0;
}

+int qed_rdma_alloc_pd(void *rdma_cxt, u16 *pd)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ u32 returned_id;
+ int rc;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Alloc PD\n");
+
+ /* Allocates an unused protection domain */
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+ rc = qed_rdma_bmap_alloc_id(p_hwfn,
+ &p_hwfn->p_rdma_info->pd_map, &returned_id);
+ spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
+
+ *pd = (u16)returned_id;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Alloc PD - done, rc = %d\n", rc);
+ return rc;
+}
+
+void qed_rdma_free_pd(void *rdma_cxt, u16 pd)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "pd = %08x\n", pd);
+
+ /* Returns a previously allocated protection domain for reuse */
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+ qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->pd_map, pd);
+ spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
+}
+
+static enum qed_rdma_toggle_bit
+qed_rdma_toggle_bit_create_resize_cq(struct qed_hwfn *p_hwfn, u16 icid)
+{
+ struct qed_rdma_info *p_info = p_hwfn->p_rdma_info;
+ enum qed_rdma_toggle_bit toggle_bit;
+ u32 bmap_id;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", icid);
+
+ /* the function toggle the bit that is related to a given icid
+ * and returns the new toggle bit's value
+ */
+ bmap_id = icid - qed_cxt_get_proto_cid_start(p_hwfn, p_info->proto);
+
+ spin_lock_bh(&p_info->lock);
+ toggle_bit = !test_and_change_bit(bmap_id,
+ p_info->toggle_bits.bitmap);
+ spin_unlock_bh(&p_info->lock);
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QED_RDMA_TOGGLE_BIT_= %d\n",
+ toggle_bit);
+
+ return toggle_bit;
+}
+
+int qed_rdma_create_cq(void *rdma_cxt,
+ struct qed_rdma_create_cq_in_params *params, u16 *icid)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ struct qed_rdma_info *p_info = p_hwfn->p_rdma_info;
+ struct rdma_create_cq_ramrod_data *p_ramrod;
+ enum qed_rdma_toggle_bit toggle_bit;
+ struct qed_sp_init_data init_data;
+ struct qed_spq_entry *p_ent;
+ u32 returned_id, start_cid;
+ int rc;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "cq_handle = %08x%08x\n",
+ params->cq_handle_hi, params->cq_handle_lo);
+
+ /* Allocate icid */
+ spin_lock_bh(&p_info->lock);
+ rc = qed_rdma_bmap_alloc_id(p_hwfn,
+ &p_info->cq_map, &returned_id);
+ spin_unlock_bh(&p_info->lock);
+
+ if (rc) {
+ DP_NOTICE(p_hwfn, "Can't create CQ, rc = %d\n", rc);
+ return rc;
+ }
+
+ start_cid = qed_cxt_get_proto_cid_start(p_hwfn,
+ p_info->proto);
+ *icid = returned_id + start_cid;
+
+ /* Check if icid requires a page allocation */
+ rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, *icid);
+ if (rc)
+ goto err;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = *icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
+
+ /* Send create CQ ramrod */
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ RDMA_RAMROD_CREATE_CQ,
+ p_info->proto, &init_data);
+ if (rc)
+ goto err;
+
+ p_ramrod = &p_ent->ramrod.rdma_create_cq;
+
+ p_ramrod->cq_handle.hi = cpu_to_le32(params->cq_handle_hi);
+ p_ramrod->cq_handle.lo = cpu_to_le32(params->cq_handle_lo);
+ p_ramrod->dpi = cpu_to_le16(params->dpi);
+ p_ramrod->is_two_level_pbl = params->pbl_two_level;
+ p_ramrod->max_cqes = cpu_to_le32(params->cq_size);
+ DMA_REGPAIR_LE(p_ramrod->pbl_addr, params->pbl_ptr);
+ p_ramrod->pbl_num_pages = cpu_to_le16(params->pbl_num_pages);
+ p_ramrod->cnq_id = (u8)RESC_START(p_hwfn, QED_RDMA_CNQ_RAM) +
+ params->cnq_id;
+ p_ramrod->int_timeout = params->int_timeout;
+
+ /* toggle the bit for every resize or create cq for a given icid */
+ toggle_bit = qed_rdma_toggle_bit_create_resize_cq(p_hwfn, *icid);
+
+ p_ramrod->toggle_bit = toggle_bit;
+
+ rc = qed_spq_post(p_hwfn, p_ent, NULL);
+ if (rc) {
+ /* restore toggle bit */
+ qed_rdma_toggle_bit_create_resize_cq(p_hwfn, *icid);
+ goto err;
+ }
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Created CQ, rc = %d\n", rc);
+ return rc;
+
+err:
+ /* release allocated icid */
+ qed_bmap_release_id(p_hwfn, &p_info->cq_map, returned_id);
+ DP_NOTICE(p_hwfn, "Create CQ failed, rc = %d\n", rc);
+
+ return rc;
+}
+
+int qed_rdma_resize_cq(void *rdma_cxt,
+ struct qed_rdma_resize_cq_in_params *in_params,
+ struct qed_rdma_resize_cq_out_params *out_params)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ struct rdma_resize_cq_output_params *p_ramrod_res;
+ struct rdma_resize_cq_ramrod_data *p_ramrod;
+ enum qed_rdma_toggle_bit toggle_bit;
+ struct qed_sp_init_data init_data;
+ struct qed_spq_entry *p_ent;
+ dma_addr_t ramrod_res_phys;
+ u8 fw_return_code;
+ int rc = -ENOMEM;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", in_params->icid);
+
+ p_ramrod_res =
+ (struct rdma_resize_cq_output_params *)
+ dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(struct rdma_resize_cq_output_params),
+ &ramrod_res_phys, GFP_KERNEL);
+ if (!p_ramrod_res) {
+ DP_NOTICE(p_hwfn,
+ "qed resize cq failed: cannot allocate memory (ramrod)\n");
+ return rc;
+ }
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = in_params->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ RDMA_RAMROD_RESIZE_CQ,
+ p_hwfn->p_rdma_info->proto, &init_data);
+ if (rc)
+ goto err;
+
+ p_ramrod = &p_ent->ramrod.rdma_resize_cq;
+
+ p_ramrod->flags = 0;
+
+ /* toggle the bit for every resize or create cq for a given icid */
+ toggle_bit = qed_rdma_toggle_bit_create_resize_cq(p_hwfn,
+ in_params->icid);
+
+ SET_FIELD(p_ramrod->flags,
+ RDMA_RESIZE_CQ_RAMROD_DATA_TOGGLE_BIT, toggle_bit);
+
+ SET_FIELD(p_ramrod->flags,
+ RDMA_RESIZE_CQ_RAMROD_DATA_IS_TWO_LEVEL_PBL,
+ in_params->pbl_two_level);
+
+ p_ramrod->pbl_log_page_size = in_params->pbl_page_size_log - 12;
+ p_ramrod->pbl_num_pages = cpu_to_le16(in_params->pbl_num_pages);
+ p_ramrod->max_cqes = cpu_to_le32(in_params->cq_size);
+ DMA_REGPAIR_LE(p_ramrod->pbl_addr, in_params->pbl_ptr);
+ DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys);
+
+ rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code);
+ if (rc)
+ goto err;
+
+ if (fw_return_code != RDMA_RETURN_OK) {
+ DP_NOTICE(p_hwfn, "fw_return_code = %d\n", fw_return_code);
+ rc = -EINVAL;
+ goto err;
+ }
+
+ out_params->prod = le32_to_cpu(p_ramrod_res->old_cq_prod);
+ out_params->cons = le32_to_cpu(p_ramrod_res->old_cq_cons);
+
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(struct rdma_resize_cq_output_params),
+ p_ramrod_res, ramrod_res_phys);
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Resized CQ, rc = %d\n", rc);
+
+ return rc;
+
+err: dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(struct rdma_resize_cq_output_params),
+ p_ramrod_res, ramrod_res_phys);
+ DP_NOTICE(p_hwfn, "Resized CQ, Failed - rc = %d\n", rc);
+
+ return rc;
+}
+
+int qed_rdma_destroy_cq(void *rdma_cxt,
+ struct qed_rdma_destroy_cq_in_params *in_params,
+ struct qed_rdma_destroy_cq_out_params *out_params)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ struct rdma_destroy_cq_output_params *p_ramrod_res;
+ struct rdma_destroy_cq_ramrod_data *p_ramrod;
+ struct qed_sp_init_data init_data;
+ struct qed_spq_entry *p_ent;
+ dma_addr_t ramrod_res_phys;
+ int rc = -ENOMEM;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", in_params->icid);
+
+ p_ramrod_res =
+ (struct rdma_destroy_cq_output_params *)
+ dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(struct rdma_destroy_cq_output_params),
+ &ramrod_res_phys, GFP_KERNEL);
+ if (!p_ramrod_res) {
+ DP_NOTICE(p_hwfn,
+ "qed destroy cq failed: cannot allocate memory (ramrod)\n");
+ return rc;
+ }
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = in_params->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
+
+ /* Send destroy CQ ramrod */
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ RDMA_RAMROD_DESTROY_CQ,
+ p_hwfn->p_rdma_info->proto, &init_data);
+ if (rc)
+ goto err;
+
+ p_ramrod = &p_ent->ramrod.rdma_destroy_cq;
+ DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys);
+
+ rc = qed_spq_post(p_hwfn, p_ent, NULL);
+ if (rc)
+ goto err;
+
+ out_params->num_cq_notif = le16_to_cpu(p_ramrod_res->cnq_num);
+
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(struct rdma_destroy_cq_output_params),
+ p_ramrod_res, ramrod_res_phys);
+
+ /* Free icid */
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+
+ qed_bmap_release_id(p_hwfn,
+ &p_hwfn->p_rdma_info->cq_map,
+ (in_params->icid -
+ qed_cxt_get_proto_cid_start(p_hwfn,
+ p_hwfn->
+ p_rdma_info->proto)));
+
+ spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroyed CQ, rc = %d\n", rc);
+ return rc;
+
+err: dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(struct rdma_destroy_cq_output_params),
+ p_ramrod_res, ramrod_res_phys);
+
+ return rc;
+}
+
static void *qed_rdma_get_rdma_ctx(struct qed_dev *cdev)
{
return QED_LEADING_HWFN(cdev);
@@ -871,12 +1190,17 @@ static const struct qed_rdma_ops qed_rdma_ops_pass = {
.rdma_add_user = &qed_rdma_add_user,
.rdma_remove_user = &qed_rdma_remove_user,
.rdma_stop = &qed_rdma_stop,
+ .rdma_query_port = &qed_rdma_query_port,
.rdma_query_device = &qed_rdma_query_device,
.rdma_get_start_sb = &qed_rdma_get_sb_start,
.rdma_get_rdma_int = &qed_rdma_get_int,
.rdma_set_rdma_int = &qed_rdma_set_int,
.rdma_get_min_cnq_msix = &qed_rdma_get_min_cnq_msix,
.rdma_cnq_prod_update = &qed_rdma_cnq_prod_update,
+ .rdma_alloc_pd = &qed_rdma_alloc_pd,
+ .rdma_dealloc_pd = &qed_rdma_free_pd,
+ .rdma_create_cq = &qed_rdma_create_cq,
+ .rdma_destroy_cq = &qed_rdma_destroy_cq,
};

const struct qed_rdma_ops *qed_get_rdma_ops()
diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.h b/drivers/net/ethernet/qlogic/qed/qed_roce.h
index e550481..1fe7370 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_roce.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_roce.h
@@ -94,6 +94,26 @@ struct qed_rdma_info {
enum protocol_type proto;
};

+struct qed_rdma_resize_cq_in_params {
+ u16 icid;
+ u32 cq_size;
+ bool pbl_two_level;
+ u64 pbl_ptr;
+ u16 pbl_num_pages;
+ u8 pbl_page_size_log;
+};
+
+struct qed_rdma_resize_cq_out_params {
+ u32 prod;
+ u32 cons;
+};
+
+struct qed_rdma_resize_cnq_in_params {
+ u32 cnq_id;
+ u32 pbl_page_size_log;
+ u64 pbl_ptr;
+};
+
int
qed_rdma_add_user(void *rdma_cxt,
struct qed_rdma_add_user_out_params *out_params);
@@ -102,6 +122,7 @@ int qed_rdma_alloc_tid(void *rdma_cxt, u32 *tid);
int qed_rdma_deregister_tid(void *rdma_cxt, u32 tid);
void qed_rdma_free_tid(void *rdma_cxt, u32 tid);
struct qed_rdma_device *qed_rdma_query_device(void *rdma_cxt);
+struct qed_rdma_port *qed_rdma_query_port(void *rdma_cxt);
int
qed_rdma_register_tid(void *rdma_cxt,
struct qed_rdma_register_tid_in_params *params);
diff --git a/include/linux/qed/qed_roce_if.h b/include/linux/qed/qed_roce_if.h
index 0f7d527..b559b1c 100644
--- a/include/linux/qed/qed_roce_if.h
+++ b/include/linux/qed/qed_roce_if.h
@@ -263,6 +263,19 @@ struct qed_rdma_register_tid_in_params {
u64 dif_runt_addr;
};

+struct qed_rdma_create_cq_in_params {
+ u32 cq_handle_lo;
+ u32 cq_handle_hi;
+ u32 cq_size;
+ u16 dpi;
+ bool pbl_two_level;
+ u64 pbl_ptr;
+ u16 pbl_num_pages;
+ u8 pbl_page_size_log;
+ u8 cnq_id;
+ u16 int_timeout;
+};
+
struct qed_rdma_create_srq_in_params {
u64 pbl_base_addr;
u64 prod_pair_addr;
@@ -271,6 +284,14 @@ struct qed_rdma_create_srq_in_params {
u16 page_size;
};

+struct qed_rdma_destroy_cq_in_params {
+ u16 icid;
+};
+
+struct qed_rdma_destroy_cq_out_params {
+ u16 num_cq_notif;
+};
+
struct qed_rdma_create_srq_out_params {
u16 srq_id;
};
@@ -332,12 +353,21 @@ struct qed_rdma_ops {
void (*rdma_remove_user)(void *rdma_cxt, u16 dpi);
int (*rdma_stop)(void *rdma_cxt);
struct qed_rdma_device* (*rdma_query_device)(void *rdma_cxt);
+ struct qed_rdma_port* (*rdma_query_port)(void *rdma_cxt);
int (*rdma_get_start_sb)(struct qed_dev *cdev);
int (*rdma_get_min_cnq_msix)(struct qed_dev *cdev);
void (*rdma_cnq_prod_update)(void *rdma_cxt, u8 cnq_index, u16 prod);
int (*rdma_get_rdma_int)(struct qed_dev *cdev,
struct qed_int_info *info);
int (*rdma_set_rdma_int)(struct qed_dev *cdev, u16 cnt);
+ int (*rdma_alloc_pd)(void *rdma_cxt, u16 *pd);
+ void (*rdma_dealloc_pd)(void *rdma_cxt, u16 pd);
+ int (*rdma_create_cq)(void *rdma_cxt,
+ struct qed_rdma_create_cq_in_params *params,
+ u16 *icid);
+ int (*rdma_destroy_cq)(void *rdma_cxt,
+ struct qed_rdma_destroy_cq_in_params *iparams,
+ struct qed_rdma_destroy_cq_out_params *oparams);
};

const struct qed_rdma_ops *qed_get_rdma_ops(void);
--
1.9.3

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