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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-05 12:31:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-05 12:31:59 -0700
commit5518b69b76680a4f2df96b1deca260059db0c2de (patch)
treef33cd1519c8efb4590500f2f9617400be233238c /drivers/net/ethernet/qlogic/qed/qed_rdma.c
parent8ad06e56dcbc1984ef0ff8f6e3c19982c5809f73 (diff)
parent0e72582270c07850b92cac351c8b97d4f9c123b9 (diff)
downloadop-kernel-dev-5518b69b76680a4f2df96b1deca260059db0c2de.zip
op-kernel-dev-5518b69b76680a4f2df96b1deca260059db0c2de.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "Reasonably busy this cycle, but perhaps not as busy as in the 4.12 merge window: 1) Several optimizations for UDP processing under high load from Paolo Abeni. 2) Support pacing internally in TCP when using the sch_fq packet scheduler for this is not practical. From Eric Dumazet. 3) Support mutliple filter chains per qdisc, from Jiri Pirko. 4) Move to 1ms TCP timestamp clock, from Eric Dumazet. 5) Add batch dequeueing to vhost_net, from Jason Wang. 6) Flesh out more completely SCTP checksum offload support, from Davide Caratti. 7) More plumbing of extended netlink ACKs, from David Ahern, Pablo Neira Ayuso, and Matthias Schiffer. 8) Add devlink support to nfp driver, from Simon Horman. 9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa Prabhu. 10) Add stack depth tracking to BPF verifier and use this information in the various eBPF JITs. From Alexei Starovoitov. 11) Support XDP on qed device VFs, from Yuval Mintz. 12) Introduce BPF PROG ID for better introspection of installed BPF programs. From Martin KaFai Lau. 13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann. 14) For loads, allow narrower accesses in bpf verifier checking, from Yonghong Song. 15) Support MIPS in the BPF selftests and samples infrastructure, the MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David Daney. 16) Support kernel based TLS, from Dave Watson and others. 17) Remove completely DST garbage collection, from Wei Wang. 18) Allow installing TCP MD5 rules using prefixes, from Ivan Delalande. 19) Add XDP support to Intel i40e driver, from Björn Töpel 20) Add support for TC flower offload in nfp driver, from Simon Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub Kicinski, and Bert van Leeuwen. 21) IPSEC offloading support in mlx5, from Ilan Tayari. 22) Add HW PTP support to macb driver, from Rafal Ozieblo. 23) Networking refcount_t conversions, From Elena Reshetova. 24) Add sock_ops support to BPF, from Lawrence Brako. This is useful for tuning the TCP sockopt settings of a group of applications, currently via CGROUPs" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits) net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap cxgb4: Support for get_ts_info ethtool method cxgb4: Add PTP Hardware Clock (PHC) support cxgb4: time stamping interface for PTP nfp: default to chained metadata prepend format nfp: remove legacy MAC address lookup nfp: improve order of interfaces in breakout mode net: macb: remove extraneous return when MACB_EXT_DESC is defined bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case bpf: fix return in load_bpf_file mpls: fix rtm policy in mpls_getroute net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t net, ax25: convert ax25_route.refcount from atomic_t to refcount_t net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t ...
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_rdma.c')
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_rdma.c1787
1 files changed, 1787 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_rdma.c b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
new file mode 100644
index 0000000..6fb9951
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
@@ -0,0 +1,1787 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015-2017 QLogic Corporation
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and /or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
+#include "qed.h"
+#include "qed_cxt.h"
+#include "qed_hsi.h"
+#include "qed_hw.h"
+#include "qed_init_ops.h"
+#include "qed_int.h"
+#include "qed_ll2.h"
+#include "qed_mcp.h"
+#include "qed_reg_addr.h"
+#include <linux/qed/qed_rdma_if.h>
+#include "qed_rdma.h"
+#include "qed_roce.h"
+#include "qed_sp.h"
+
+
+int qed_rdma_bmap_alloc(struct qed_hwfn *p_hwfn,
+ struct qed_bmap *bmap, u32 max_count, char *name)
+{
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "max_count = %08x\n", max_count);
+
+ bmap->max_count = max_count;
+
+ bmap->bitmap = kcalloc(BITS_TO_LONGS(max_count), sizeof(long),
+ GFP_KERNEL);
+ if (!bmap->bitmap)
+ return -ENOMEM;
+
+ snprintf(bmap->name, QED_RDMA_MAX_BMAP_NAME, "%s", name);
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "0\n");
+ return 0;
+}
+
+int qed_rdma_bmap_alloc_id(struct qed_hwfn *p_hwfn,
+ struct qed_bmap *bmap, u32 *id_num)
+{
+ *id_num = find_first_zero_bit(bmap->bitmap, bmap->max_count);
+ if (*id_num >= bmap->max_count)
+ return -EINVAL;
+
+ __set_bit(*id_num, bmap->bitmap);
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "%s bitmap: allocated id %d\n",
+ bmap->name, *id_num);
+
+ return 0;
+}
+
+void qed_bmap_set_id(struct qed_hwfn *p_hwfn,
+ struct qed_bmap *bmap, u32 id_num)
+{
+ if (id_num >= bmap->max_count)
+ return;
+
+ __set_bit(id_num, bmap->bitmap);
+}
+
+void qed_bmap_release_id(struct qed_hwfn *p_hwfn,
+ struct qed_bmap *bmap, u32 id_num)
+{
+ bool b_acquired;
+
+ if (id_num >= bmap->max_count)
+ return;
+
+ b_acquired = test_and_clear_bit(id_num, bmap->bitmap);
+ if (!b_acquired) {
+ DP_NOTICE(p_hwfn, "%s bitmap: id %d already released\n",
+ bmap->name, id_num);
+ return;
+ }
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "%s bitmap: released id %d\n",
+ bmap->name, id_num);
+}
+
+int qed_bmap_test_id(struct qed_hwfn *p_hwfn,
+ struct qed_bmap *bmap, u32 id_num)
+{
+ if (id_num >= bmap->max_count)
+ return -1;
+
+ return test_bit(id_num, bmap->bitmap);
+}
+
+static bool qed_bmap_is_empty(struct qed_bmap *bmap)
+{
+ return bmap->max_count == find_first_bit(bmap->bitmap, bmap->max_count);
+}
+
+u32 qed_rdma_get_sb_id(void *p_hwfn, u32 rel_sb_id)
+{
+ /* First sb id for RoCE is after all the l2 sb */
+ return FEAT_NUM((struct qed_hwfn *)p_hwfn, QED_PF_L2_QUE) + rel_sb_id;
+}
+
+static int qed_rdma_alloc(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_rdma_start_in_params *params)
+{
+ struct qed_rdma_info *p_rdma_info;
+ u32 num_cons, num_tasks;
+ int rc = -ENOMEM;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocating RDMA\n");
+
+ /* Allocate a struct with current pf rdma info */
+ p_rdma_info = kzalloc(sizeof(*p_rdma_info), GFP_KERNEL);
+ if (!p_rdma_info)
+ return rc;
+
+ p_hwfn->p_rdma_info = p_rdma_info;
+ p_rdma_info->proto = PROTOCOLID_ROCE;
+
+ num_cons = qed_cxt_get_proto_cid_count(p_hwfn, p_rdma_info->proto,
+ NULL);
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ p_rdma_info->num_qps = num_cons;
+ else
+ p_rdma_info->num_qps = num_cons / 2; /* 2 cids per qp */
+
+ num_tasks = qed_cxt_get_proto_tid_count(p_hwfn, PROTOCOLID_ROCE);
+
+ /* Each MR uses a single task */
+ p_rdma_info->num_mrs = num_tasks;
+
+ /* Queue zone lines are shared between RoCE and L2 in such a way that
+ * they can be used by each without obstructing the other.
+ */
+ p_rdma_info->queue_zone_base = (u16)RESC_START(p_hwfn, QED_L2_QUEUE);
+ p_rdma_info->max_queue_zones = (u16)RESC_NUM(p_hwfn, QED_L2_QUEUE);
+
+ /* Allocate a struct with device params and fill it */
+ p_rdma_info->dev = kzalloc(sizeof(*p_rdma_info->dev), GFP_KERNEL);
+ if (!p_rdma_info->dev)
+ goto free_rdma_info;
+
+ /* Allocate a struct with port params and fill it */
+ p_rdma_info->port = kzalloc(sizeof(*p_rdma_info->port), GFP_KERNEL);
+ if (!p_rdma_info->port)
+ goto free_rdma_dev;
+
+ /* Allocate bit map for pd's */
+ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->pd_map, RDMA_MAX_PDS,
+ "PD");
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "Failed to allocate pd_map, rc = %d\n",
+ rc);
+ goto free_rdma_port;
+ }
+
+ /* Allocate DPI bitmap */
+ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->dpi_map,
+ p_hwfn->dpi_count, "DPI");
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "Failed to allocate DPI bitmap, rc = %d\n", rc);
+ goto free_pd_map;
+ }
+
+ /* Allocate bitmap for cq's. The maximum number of CQs is bounded to
+ * twice the number of QPs.
+ */
+ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->cq_map,
+ p_rdma_info->num_qps * 2, "CQ");
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "Failed to allocate cq bitmap, rc = %d\n", rc);
+ goto free_dpi_map;
+ }
+
+ /* Allocate bitmap for toggle bit for cq icids
+ * We toggle the bit every time we create or resize cq for a given icid.
+ * The maximum number of CQs is bounded to twice the number of QPs.
+ */
+ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->toggle_bits,
+ p_rdma_info->num_qps * 2, "Toggle");
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "Failed to allocate toogle bits, rc = %d\n", rc);
+ goto free_cq_map;
+ }
+
+ /* Allocate bitmap for itids */
+ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->tid_map,
+ p_rdma_info->num_mrs, "MR");
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "Failed to allocate itids bitmaps, rc = %d\n", rc);
+ goto free_toggle_map;
+ }
+
+ /* Allocate bitmap for cids used for qps. */
+ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->cid_map, num_cons,
+ "CID");
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "Failed to allocate cid bitmap, rc = %d\n", rc);
+ goto free_tid_map;
+ }
+
+ /* Allocate bitmap for cids used for responders/requesters. */
+ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->real_cid_map, num_cons,
+ "REAL_CID");
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "Failed to allocate real cid bitmap, rc = %d\n", rc);
+ goto free_cid_map;
+ }
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ rc = qed_iwarp_alloc(p_hwfn);
+
+ if (rc)
+ goto free_cid_map;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocation successful\n");
+ return 0;
+
+free_cid_map:
+ kfree(p_rdma_info->cid_map.bitmap);
+free_tid_map:
+ kfree(p_rdma_info->tid_map.bitmap);
+free_toggle_map:
+ kfree(p_rdma_info->toggle_bits.bitmap);
+free_cq_map:
+ kfree(p_rdma_info->cq_map.bitmap);
+free_dpi_map:
+ kfree(p_rdma_info->dpi_map.bitmap);
+free_pd_map:
+ kfree(p_rdma_info->pd_map.bitmap);
+free_rdma_port:
+ kfree(p_rdma_info->port);
+free_rdma_dev:
+ kfree(p_rdma_info->dev);
+free_rdma_info:
+ kfree(p_rdma_info);
+
+ return rc;
+}
+
+void qed_rdma_bmap_free(struct qed_hwfn *p_hwfn,
+ struct qed_bmap *bmap, bool check)
+{
+ int weight = bitmap_weight(bmap->bitmap, bmap->max_count);
+ int last_line = bmap->max_count / (64 * 8);
+ int last_item = last_line * 8 +
+ DIV_ROUND_UP(bmap->max_count % (64 * 8), 64);
+ u64 *pmap = (u64 *)bmap->bitmap;
+ int line, item, offset;
+ u8 str_last_line[200] = { 0 };
+
+ if (!weight || !check)
+ goto end;
+
+ DP_NOTICE(p_hwfn,
+ "%s bitmap not free - size=%d, weight=%d, 512 bits per line\n",
+ bmap->name, bmap->max_count, weight);
+
+ /* print aligned non-zero lines, if any */
+ for (item = 0, line = 0; line < last_line; line++, item += 8)
+ if (bitmap_weight((unsigned long *)&pmap[item], 64 * 8))
+ DP_NOTICE(p_hwfn,
+ "line 0x%04x: 0x%016llx 0x%016llx 0x%016llx 0x%016llx 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
+ line,
+ pmap[item],
+ pmap[item + 1],
+ pmap[item + 2],
+ pmap[item + 3],
+ pmap[item + 4],
+ pmap[item + 5],
+ pmap[item + 6], pmap[item + 7]);
+
+ /* print last unaligned non-zero line, if any */
+ if ((bmap->max_count % (64 * 8)) &&
+ (bitmap_weight((unsigned long *)&pmap[item],
+ bmap->max_count - item * 64))) {
+ offset = sprintf(str_last_line, "line 0x%04x: ", line);
+ for (; item < last_item; item++)
+ offset += sprintf(str_last_line + offset,
+ "0x%016llx ", pmap[item]);
+ DP_NOTICE(p_hwfn, "%s\n", str_last_line);
+ }
+
+end:
+ kfree(bmap->bitmap);
+ bmap->bitmap = NULL;
+}
+
+static void qed_rdma_resc_free(struct qed_hwfn *p_hwfn)
+{
+ struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ qed_iwarp_resc_free(p_hwfn);
+
+ qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->cid_map, 1);
+ qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->pd_map, 1);
+ qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->dpi_map, 1);
+ qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->cq_map, 1);
+ qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->toggle_bits, 0);
+ qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->tid_map, 1);
+
+ kfree(p_rdma_info->port);
+ kfree(p_rdma_info->dev);
+
+ kfree(p_rdma_info);
+}
+
+static void qed_rdma_free(struct qed_hwfn *p_hwfn)
+{
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Freeing RDMA\n");
+
+ qed_rdma_resc_free(p_hwfn);
+}
+
+static void qed_rdma_get_guid(struct qed_hwfn *p_hwfn, u8 *guid)
+{
+ guid[0] = p_hwfn->hw_info.hw_mac_addr[0] ^ 2;
+ guid[1] = p_hwfn->hw_info.hw_mac_addr[1];
+ guid[2] = p_hwfn->hw_info.hw_mac_addr[2];
+ guid[3] = 0xff;
+ guid[4] = 0xfe;
+ guid[5] = p_hwfn->hw_info.hw_mac_addr[3];
+ guid[6] = p_hwfn->hw_info.hw_mac_addr[4];
+ guid[7] = p_hwfn->hw_info.hw_mac_addr[5];
+}
+
+static void qed_rdma_init_events(struct qed_hwfn *p_hwfn,
+ struct qed_rdma_start_in_params *params)
+{
+ struct qed_rdma_events *events;
+
+ events = &p_hwfn->p_rdma_info->events;
+
+ events->unaffiliated_event = params->events->unaffiliated_event;
+ events->affiliated_event = params->events->affiliated_event;
+ events->context = params->events->context;
+}
+
+static void qed_rdma_init_devinfo(struct qed_hwfn *p_hwfn,
+ struct qed_rdma_start_in_params *params)
+{
+ struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev;
+ struct qed_dev *cdev = p_hwfn->cdev;
+ u32 pci_status_control;
+ u32 num_qps;
+
+ /* Vendor specific information */
+ dev->vendor_id = cdev->vendor_id;
+ dev->vendor_part_id = cdev->device_id;
+ dev->hw_ver = 0;
+ dev->fw_ver = (FW_MAJOR_VERSION << 24) | (FW_MINOR_VERSION << 16) |
+ (FW_REVISION_VERSION << 8) | (FW_ENGINEERING_VERSION);
+
+ qed_rdma_get_guid(p_hwfn, (u8 *)&dev->sys_image_guid);
+ dev->node_guid = dev->sys_image_guid;
+
+ dev->max_sge = min_t(u32, RDMA_MAX_SGE_PER_SQ_WQE,
+ RDMA_MAX_SGE_PER_RQ_WQE);
+
+ if (cdev->rdma_max_sge)
+ dev->max_sge = min_t(u32, cdev->rdma_max_sge, dev->max_sge);
+
+ dev->max_inline = ROCE_REQ_MAX_INLINE_DATA_SIZE;
+
+ dev->max_inline = (cdev->rdma_max_inline) ?
+ min_t(u32, cdev->rdma_max_inline, dev->max_inline) :
+ dev->max_inline;
+
+ dev->max_wqe = QED_RDMA_MAX_WQE;
+ dev->max_cnq = (u8)FEAT_NUM(p_hwfn, QED_RDMA_CNQ);
+
+ /* The number of QPs may be higher than QED_ROCE_MAX_QPS, because
+ * it is up-aligned to 16 and then to ILT page size within qed cxt.
+ * This is OK in terms of ILT but we don't want to configure the FW
+ * above its abilities
+ */
+ num_qps = ROCE_MAX_QPS;
+ num_qps = min_t(u64, num_qps, p_hwfn->p_rdma_info->num_qps);
+ dev->max_qp = num_qps;
+
+ /* CQs uses the same icids that QPs use hence they are limited by the
+ * number of icids. There are two icids per QP.
+ */
+ dev->max_cq = num_qps * 2;
+
+ /* The number of mrs is smaller by 1 since the first is reserved */
+ dev->max_mr = p_hwfn->p_rdma_info->num_mrs - 1;
+ dev->max_mr_size = QED_RDMA_MAX_MR_SIZE;
+
+ /* The maximum CQE capacity per CQ supported.
+ * max number of cqes will be in two layer pbl,
+ * 8 is the pointer size in bytes
+ * 32 is the size of cq element in bytes
+ */
+ if (params->cq_mode == QED_RDMA_CQ_MODE_32_BITS)
+ dev->max_cqe = QED_RDMA_MAX_CQE_32_BIT;
+ else
+ dev->max_cqe = QED_RDMA_MAX_CQE_16_BIT;
+
+ dev->max_mw = 0;
+ dev->max_fmr = QED_RDMA_MAX_FMR;
+ dev->max_mr_mw_fmr_pbl = (PAGE_SIZE / 8) * (PAGE_SIZE / 8);
+ dev->max_mr_mw_fmr_size = dev->max_mr_mw_fmr_pbl * PAGE_SIZE;
+ dev->max_pkey = QED_RDMA_MAX_P_KEY;
+
+ dev->max_qp_resp_rd_atomic_resc = RDMA_RING_PAGE_SIZE /
+ (RDMA_RESP_RD_ATOMIC_ELM_SIZE * 2);
+ dev->max_qp_req_rd_atomic_resc = RDMA_RING_PAGE_SIZE /
+ RDMA_REQ_RD_ATOMIC_ELM_SIZE;
+ dev->max_dev_resp_rd_atomic_resc = dev->max_qp_resp_rd_atomic_resc *
+ p_hwfn->p_rdma_info->num_qps;
+ dev->page_size_caps = QED_RDMA_PAGE_SIZE_CAPS;
+ dev->dev_ack_delay = QED_RDMA_ACK_DELAY;
+ dev->max_pd = RDMA_MAX_PDS;
+ dev->max_ah = p_hwfn->p_rdma_info->num_qps;
+ dev->max_stats_queues = (u8)RESC_NUM(p_hwfn, QED_RDMA_STATS_QUEUE);
+
+ /* Set capablities */
+ dev->dev_caps = 0;
+ SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_RNR_NAK, 1);
+ SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_PORT_ACTIVE_EVENT, 1);
+ SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_PORT_CHANGE_EVENT, 1);
+ SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_RESIZE_CQ, 1);
+ SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_BASE_MEMORY_EXT, 1);
+ SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_BASE_QUEUE_EXT, 1);
+ SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ZBVA, 1);
+ SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_LOCAL_INV_FENCE, 1);
+
+ /* Check atomic operations support in PCI configuration space. */
+ pci_read_config_dword(cdev->pdev,
+ cdev->pdev->pcie_cap + PCI_EXP_DEVCTL2,
+ &pci_status_control);
+
+ if (pci_status_control & PCI_EXP_DEVCTL2_LTR_EN)
+ SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ATOMIC_OP, 1);
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ qed_iwarp_init_devinfo(p_hwfn);
+}
+
+static void qed_rdma_init_port(struct qed_hwfn *p_hwfn)
+{
+ struct qed_rdma_port *port = p_hwfn->p_rdma_info->port;
+ struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev;
+
+ port->port_state = p_hwfn->mcp_info->link_output.link_up ?
+ QED_RDMA_PORT_UP : QED_RDMA_PORT_DOWN;
+
+ port->max_msg_size = min_t(u64,
+ (dev->max_mr_mw_fmr_size *
+ p_hwfn->cdev->rdma_max_sge),
+ BIT(31));
+
+ port->pkey_bad_counter = 0;
+}
+
+static int qed_rdma_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
+{
+ int rc = 0;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Initializing HW\n");
+ p_hwfn->b_rdma_enabled_in_prs = false;
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ qed_iwarp_init_hw(p_hwfn, p_ptt);
+ else
+ rc = qed_roce_init_hw(p_hwfn, p_ptt);
+
+ return rc;
+}
+
+static int qed_rdma_start_fw(struct qed_hwfn *p_hwfn,
+ struct qed_rdma_start_in_params *params,
+ struct qed_ptt *p_ptt)
+{
+ struct rdma_init_func_ramrod_data *p_ramrod;
+ struct qed_rdma_cnq_params *p_cnq_pbl_list;
+ struct rdma_init_func_hdr *p_params_header;
+ struct rdma_cnq_params *p_cnq_params;
+ struct qed_sp_init_data init_data;
+ struct qed_spq_entry *p_ent;
+ u32 cnq_id, sb_id;
+ u16 igu_sb_id;
+ int rc;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Starting FW\n");
+
+ /* Save the number of cnqs for the function close ramrod */
+ p_hwfn->p_rdma_info->num_cnqs = params->desired_cnq;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ 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_FUNC_INIT,
+ p_hwfn->p_rdma_info->proto, &init_data);
+ if (rc)
+ return rc;
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ p_ramrod = &p_ent->ramrod.iwarp_init_func.rdma;
+ else
+ p_ramrod = &p_ent->ramrod.roce_init_func.rdma;
+
+ p_params_header = &p_ramrod->params_header;
+ p_params_header->cnq_start_offset = (u8)RESC_START(p_hwfn,
+ QED_RDMA_CNQ_RAM);
+ p_params_header->num_cnqs = params->desired_cnq;
+
+ if (params->cq_mode == QED_RDMA_CQ_MODE_16_BITS)
+ p_params_header->cq_ring_mode = 1;
+ else
+ p_params_header->cq_ring_mode = 0;
+
+ for (cnq_id = 0; cnq_id < params->desired_cnq; cnq_id++) {
+ sb_id = qed_rdma_get_sb_id(p_hwfn, cnq_id);
+ igu_sb_id = qed_get_igu_sb_id(p_hwfn, sb_id);
+ p_ramrod->cnq_params[cnq_id].sb_num = cpu_to_le16(igu_sb_id);
+ p_cnq_params = &p_ramrod->cnq_params[cnq_id];
+ p_cnq_pbl_list = &params->cnq_pbl_list[cnq_id];
+
+ p_cnq_params->sb_index = p_hwfn->pf_params.rdma_pf_params.gl_pi;
+ p_cnq_params->num_pbl_pages = p_cnq_pbl_list->num_pbl_pages;
+
+ DMA_REGPAIR_LE(p_cnq_params->pbl_base_addr,
+ p_cnq_pbl_list->pbl_ptr);
+
+ /* we assume here that cnq_id and qz_offset are the same */
+ p_cnq_params->queue_zone_num =
+ cpu_to_le16(p_hwfn->p_rdma_info->queue_zone_base +
+ cnq_id);
+ }
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int qed_rdma_alloc_tid(void *rdma_cxt, u32 *itid)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ int rc;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocate TID\n");
+
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+ rc = qed_rdma_bmap_alloc_id(p_hwfn,
+ &p_hwfn->p_rdma_info->tid_map, itid);
+ spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
+ if (rc)
+ goto out;
+
+ rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_TASK, *itid);
+out:
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocate TID - done, rc = %d\n", rc);
+ return rc;
+}
+
+static int qed_rdma_reserve_lkey(struct qed_hwfn *p_hwfn)
+{
+ struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev;
+
+ /* The first DPI is reserved for the Kernel */
+ __set_bit(0, p_hwfn->p_rdma_info->dpi_map.bitmap);
+
+ /* Tid 0 will be used as the key for "reserved MR".
+ * The driver should allocate memory for it so it can be loaded but no
+ * ramrod should be passed on it.
+ */
+ qed_rdma_alloc_tid(p_hwfn, &dev->reserved_lkey);
+ if (dev->reserved_lkey != RDMA_RESERVED_LKEY) {
+ DP_NOTICE(p_hwfn,
+ "Reserved lkey should be equal to RDMA_RESERVED_LKEY\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int qed_rdma_setup(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_rdma_start_in_params *params)
+{
+ int rc;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA setup\n");
+
+ spin_lock_init(&p_hwfn->p_rdma_info->lock);
+
+ qed_rdma_init_devinfo(p_hwfn, params);
+ qed_rdma_init_port(p_hwfn);
+ qed_rdma_init_events(p_hwfn, params);
+
+ rc = qed_rdma_reserve_lkey(p_hwfn);
+ if (rc)
+ return rc;
+
+ rc = qed_rdma_init_hw(p_hwfn, p_ptt);
+ if (rc)
+ return rc;
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
+ rc = qed_iwarp_setup(p_hwfn, p_ptt, params);
+ if (rc)
+ return rc;
+ } else {
+ rc = qed_roce_setup(p_hwfn);
+ if (rc)
+ return rc;
+ }
+
+ return qed_rdma_start_fw(p_hwfn, params, p_ptt);
+}
+
+int qed_rdma_stop(void *rdma_cxt)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ struct rdma_close_func_ramrod_data *p_ramrod;
+ struct qed_sp_init_data init_data;
+ struct qed_spq_entry *p_ent;
+ struct qed_ptt *p_ptt;
+ u32 ll2_ethertype_en;
+ int rc = -EBUSY;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA stop\n");
+
+ p_ptt = qed_ptt_acquire(p_hwfn);
+ if (!p_ptt) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to acquire PTT\n");
+ return rc;
+ }
+
+ /* Disable RoCE search */
+ qed_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 0);
+ p_hwfn->b_rdma_enabled_in_prs = false;
+
+ qed_wr(p_hwfn, p_ptt, PRS_REG_ROCE_DEST_QP_MAX_PF, 0);
+
+ ll2_ethertype_en = qed_rd(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN);
+
+ qed_wr(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN,
+ (ll2_ethertype_en & 0xFFFE));
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
+ rc = qed_iwarp_stop(p_hwfn, p_ptt);
+ if (rc) {
+ qed_ptt_release(p_hwfn, p_ptt);
+ return rc;
+ }
+ } else {
+ qed_roce_stop(p_hwfn);
+ }
+
+ qed_ptt_release(p_hwfn, p_ptt);
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
+
+ /* Stop RoCE */
+ rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_FUNC_CLOSE,
+ p_hwfn->p_rdma_info->proto, &init_data);
+ if (rc)
+ goto out;
+
+ p_ramrod = &p_ent->ramrod.rdma_close_func;
+
+ p_ramrod->num_cnqs = p_hwfn->p_rdma_info->num_cnqs;
+ p_ramrod->cnq_start_offset = (u8)RESC_START(p_hwfn, QED_RDMA_CNQ_RAM);
+
+ rc = qed_spq_post(p_hwfn, p_ent, NULL);
+
+out:
+ qed_rdma_free(p_hwfn);
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA stop done, rc = %d\n", rc);
+ return rc;
+}
+
+static int qed_rdma_add_user(void *rdma_cxt,
+ struct qed_rdma_add_user_out_params *out_params)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ u32 dpi_start_offset;
+ u32 returned_id = 0;
+ int rc;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Adding User\n");
+
+ /* Allocate DPI */
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+ rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->dpi_map,
+ &returned_id);
+ spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
+
+ out_params->dpi = (u16)returned_id;
+
+ /* Calculate the corresponding DPI address */
+ dpi_start_offset = p_hwfn->dpi_start_offset;
+
+ out_params->dpi_addr = (u64)((u8 __iomem *)p_hwfn->doorbells +
+ dpi_start_offset +
+ ((out_params->dpi) * p_hwfn->dpi_size));
+
+ out_params->dpi_phys_addr = p_hwfn->cdev->db_phys_addr +
+ dpi_start_offset +
+ ((out_params->dpi) * p_hwfn->dpi_size);
+
+ out_params->dpi_size = p_hwfn->dpi_size;
+ out_params->wid_count = p_hwfn->wid_count;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Adding user - done, rc = %d\n", rc);
+ return rc;
+}
+
+static 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;
+
+ p_port->max_msg_size = RDMA_MAX_DATA_SIZE_IN_WQE;
+
+ return p_port;
+}
+
+static struct qed_rdma_device *qed_rdma_query_device(void *rdma_cxt)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Query device\n");
+
+ /* Return struct with device parameters */
+ return p_hwfn->p_rdma_info->dev;
+}
+
+static void qed_rdma_free_tid(void *rdma_cxt, u32 itid)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", itid);
+
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+ qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->tid_map, itid);
+ spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
+}
+
+static void qed_rdma_cnq_prod_update(void *rdma_cxt, u8 qz_offset, u16 prod)
+{
+ struct qed_hwfn *p_hwfn;
+ u16 qz_num;
+ u32 addr;
+
+ p_hwfn = (struct qed_hwfn *)rdma_cxt;
+
+ if (qz_offset > p_hwfn->p_rdma_info->max_queue_zones) {
+ DP_NOTICE(p_hwfn,
+ "queue zone offset %d is too large (max is %d)\n",
+ qz_offset, p_hwfn->p_rdma_info->max_queue_zones);
+ return;
+ }
+
+ qz_num = p_hwfn->p_rdma_info->queue_zone_base + qz_offset;
+ addr = GTT_BAR0_MAP_REG_USDM_RAM +
+ USTORM_COMMON_QUEUE_CONS_OFFSET(qz_num);
+
+ REG_WR16(p_hwfn, addr, prod);
+
+ /* keep prod updates ordered */
+ wmb();
+}
+
+static int qed_fill_rdma_dev_info(struct qed_dev *cdev,
+ struct qed_dev_rdma_info *info)
+{
+ struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
+
+ memset(info, 0, sizeof(*info));
+
+ info->rdma_type = QED_IS_ROCE_PERSONALITY(p_hwfn) ?
+ QED_RDMA_TYPE_ROCE : QED_RDMA_TYPE_IWARP;
+
+ info->user_dpm_enabled = (p_hwfn->db_bar_no_edpm == 0);
+
+ qed_fill_dev_info(cdev, &info->common);
+
+ return 0;
+}
+
+static int qed_rdma_get_sb_start(struct qed_dev *cdev)
+{
+ int feat_num;
+
+ if (cdev->num_hwfns > 1)
+ feat_num = FEAT_NUM(QED_LEADING_HWFN(cdev), QED_PF_L2_QUE);
+ else
+ feat_num = FEAT_NUM(QED_LEADING_HWFN(cdev), QED_PF_L2_QUE) *
+ cdev->num_hwfns;
+
+ return feat_num;
+}
+
+static int qed_rdma_get_min_cnq_msix(struct qed_dev *cdev)
+{
+ int n_cnq = FEAT_NUM(QED_LEADING_HWFN(cdev), QED_RDMA_CNQ);
+ int n_msix = cdev->int_params.rdma_msix_cnt;
+
+ return min_t(int, n_cnq, n_msix);
+}
+
+static int qed_rdma_set_int(struct qed_dev *cdev, u16 cnt)
+{
+ int limit = 0;
+
+ /* Mark the fastpath as free/used */
+ cdev->int_params.fp_initialized = cnt ? true : false;
+
+ if (cdev->int_params.out.int_mode != QED_INT_MODE_MSIX) {
+ DP_ERR(cdev,
+ "qed roce supports only MSI-X interrupts (detected %d).\n",
+ cdev->int_params.out.int_mode);
+ return -EINVAL;
+ } else if (cdev->int_params.fp_msix_cnt) {
+ limit = cdev->int_params.rdma_msix_cnt;
+ }
+
+ if (!limit)
+ return -ENOMEM;
+
+ return min_t(int, cnt, limit);
+}
+
+static int qed_rdma_get_int(struct qed_dev *cdev, struct qed_int_info *info)
+{
+ memset(info, 0, sizeof(*info));
+
+ if (!cdev->int_params.fp_initialized) {
+ DP_INFO(cdev,
+ "Protocol driver requested interrupt information, but its support is not yet configured\n");
+ return -EINVAL;
+ }
+
+ if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
+ int msix_base = cdev->int_params.rdma_msix_base;
+
+ info->msix_cnt = cdev->int_params.rdma_msix_cnt;
+ info->msix = &cdev->int_params.msix_table[msix_base];
+
+ DP_VERBOSE(cdev, QED_MSG_RDMA, "msix_cnt = %d msix_base=%d\n",
+ info->msix_cnt, msix_base);
+ }
+
+ return 0;
+}
+
+static 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;
+}
+
+static 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;
+}
+
+static 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 */
+ spin_lock_bh(&p_info->lock);
+ qed_bmap_release_id(p_hwfn, &p_info->cq_map, returned_id);
+ spin_unlock_bh(&p_info->lock);
+ DP_NOTICE(p_hwfn, "Create CQ failed, rc = %d\n", rc);
+
+ return rc;
+}
+
+static 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;
+ enum protocol_type proto;
+ 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;
+ proto = p_hwfn->p_rdma_info->proto;
+ /* Send destroy CQ ramrod */
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ RDMA_RAMROD_DESTROY_CQ,
+ 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, 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;
+}
+
+void qed_rdma_set_fw_mac(u16 *p_fw_mac, u8 *p_qed_mac)
+{
+ p_fw_mac[0] = cpu_to_le16((p_qed_mac[0] << 8) + p_qed_mac[1]);
+ p_fw_mac[1] = cpu_to_le16((p_qed_mac[2] << 8) + p_qed_mac[3]);
+ p_fw_mac[2] = cpu_to_le16((p_qed_mac[4] << 8) + p_qed_mac[5]);
+}
+
+static int qed_rdma_query_qp(void *rdma_cxt,
+ struct qed_rdma_qp *qp,
+ struct qed_rdma_query_qp_out_params *out_params)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ int rc = 0;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
+
+ /* The following fields are filled in from qp and not FW as they can't
+ * be modified by FW
+ */
+ out_params->mtu = qp->mtu;
+ out_params->dest_qp = qp->dest_qp;
+ out_params->incoming_atomic_en = qp->incoming_atomic_en;
+ out_params->e2e_flow_control_en = qp->e2e_flow_control_en;
+ out_params->incoming_rdma_read_en = qp->incoming_rdma_read_en;
+ out_params->incoming_rdma_write_en = qp->incoming_rdma_write_en;
+ out_params->dgid = qp->dgid;
+ out_params->flow_label = qp->flow_label;
+ out_params->hop_limit_ttl = qp->hop_limit_ttl;
+ out_params->traffic_class_tos = qp->traffic_class_tos;
+ out_params->timeout = qp->ack_timeout;
+ out_params->rnr_retry = qp->rnr_retry_cnt;
+ out_params->retry_cnt = qp->retry_cnt;
+ out_params->min_rnr_nak_timer = qp->min_rnr_nak_timer;
+ out_params->pkey_index = 0;
+ out_params->max_rd_atomic = qp->max_rd_atomic_req;
+ out_params->max_dest_rd_atomic = qp->max_rd_atomic_resp;
+ out_params->sqd_async = qp->sqd_async;
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ qed_iwarp_query_qp(qp, out_params);
+ else
+ rc = qed_roce_query_qp(p_hwfn, qp, out_params);
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Query QP, rc = %d\n", rc);
+ return rc;
+}
+
+static int qed_rdma_destroy_qp(void *rdma_cxt, struct qed_rdma_qp *qp)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ int rc = 0;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ rc = qed_iwarp_destroy_qp(p_hwfn, qp);
+ else
+ rc = qed_roce_destroy_qp(p_hwfn, qp);
+
+ /* free qp params struct */
+ kfree(qp);
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP destroyed\n");
+ return rc;
+}
+
+static struct qed_rdma_qp *
+qed_rdma_create_qp(void *rdma_cxt,
+ struct qed_rdma_create_qp_in_params *in_params,
+ struct qed_rdma_create_qp_out_params *out_params)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ struct qed_rdma_qp *qp;
+ u8 max_stats_queues;
+ int rc;
+
+ if (!rdma_cxt || !in_params || !out_params || !p_hwfn->p_rdma_info) {
+ DP_ERR(p_hwfn->cdev,
+ "qed roce create qp failed due to NULL entry (rdma_cxt=%p, in=%p, out=%p, roce_info=?\n",
+ rdma_cxt, in_params, out_params);
+ return NULL;
+ }
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "qed rdma create qp called with qp_handle = %08x%08x\n",
+ in_params->qp_handle_hi, in_params->qp_handle_lo);
+
+ /* Some sanity checks... */
+ max_stats_queues = p_hwfn->p_rdma_info->dev->max_stats_queues;
+ if (in_params->stats_queue >= max_stats_queues) {
+ DP_ERR(p_hwfn->cdev,
+ "qed rdma create qp failed due to invalid statistics queue %d. maximum is %d\n",
+ in_params->stats_queue, max_stats_queues);
+ return NULL;
+ }
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
+ if (in_params->sq_num_pages * sizeof(struct regpair) >
+ IWARP_SHARED_QUEUE_PAGE_SQ_PBL_MAX_SIZE) {
+ DP_NOTICE(p_hwfn->cdev,
+ "Sq num pages: %d exceeds maximum\n",
+ in_params->sq_num_pages);
+ return NULL;
+ }
+ if (in_params->rq_num_pages * sizeof(struct regpair) >
+ IWARP_SHARED_QUEUE_PAGE_RQ_PBL_MAX_SIZE) {
+ DP_NOTICE(p_hwfn->cdev,
+ "Rq num pages: %d exceeds maximum\n",
+ in_params->rq_num_pages);
+ return NULL;
+ }
+ }
+
+ qp = kzalloc(sizeof(*qp), GFP_KERNEL);
+ if (!qp)
+ return NULL;
+
+ qp->cur_state = QED_ROCE_QP_STATE_RESET;
+ qp->qp_handle.hi = cpu_to_le32(in_params->qp_handle_hi);
+ qp->qp_handle.lo = cpu_to_le32(in_params->qp_handle_lo);
+ qp->qp_handle_async.hi = cpu_to_le32(in_params->qp_handle_async_hi);
+ qp->qp_handle_async.lo = cpu_to_le32(in_params->qp_handle_async_lo);
+ qp->use_srq = in_params->use_srq;
+ qp->signal_all = in_params->signal_all;
+ qp->fmr_and_reserved_lkey = in_params->fmr_and_reserved_lkey;
+ qp->pd = in_params->pd;
+ qp->dpi = in_params->dpi;
+ qp->sq_cq_id = in_params->sq_cq_id;
+ qp->sq_num_pages = in_params->sq_num_pages;
+ qp->sq_pbl_ptr = in_params->sq_pbl_ptr;
+ qp->rq_cq_id = in_params->rq_cq_id;
+ qp->rq_num_pages = in_params->rq_num_pages;
+ qp->rq_pbl_ptr = in_params->rq_pbl_ptr;
+ qp->srq_id = in_params->srq_id;
+ qp->req_offloaded = false;
+ qp->resp_offloaded = false;
+ qp->e2e_flow_control_en = qp->use_srq ? false : true;
+ qp->stats_queue = in_params->stats_queue;
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
+ rc = qed_iwarp_create_qp(p_hwfn, qp, out_params);
+ qp->qpid = qp->icid;
+ } else {
+ rc = qed_roce_alloc_cid(p_hwfn, &qp->icid);
+ qp->qpid = ((0xFF << 16) | qp->icid);
+ }
+
+ if (rc) {
+ kfree(qp);
+ return NULL;
+ }
+
+ out_params->icid = qp->icid;
+ out_params->qp_id = qp->qpid;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Create QP, rc = %d\n", rc);
+ return qp;
+}
+
+static int qed_rdma_modify_qp(void *rdma_cxt,
+ struct qed_rdma_qp *qp,
+ struct qed_rdma_modify_qp_in_params *params)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ enum qed_roce_qp_state prev_state;
+ int rc = 0;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x params->new_state=%d\n",
+ qp->icid, params->new_state);
+
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
+ return rc;
+ }
+
+ if (GET_FIELD(params->modify_flags,
+ QED_RDMA_MODIFY_QP_VALID_RDMA_OPS_EN)) {
+ qp->incoming_rdma_read_en = params->incoming_rdma_read_en;
+ qp->incoming_rdma_write_en = params->incoming_rdma_write_en;
+ qp->incoming_atomic_en = params->incoming_atomic_en;
+ }
+
+ /* Update QP structure with the updated values */
+ if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_ROCE_MODE))
+ qp->roce_mode = params->roce_mode;
+ if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY))
+ qp->pkey = params->pkey;
+ if (GET_FIELD(params->modify_flags,
+ QED_ROCE_MODIFY_QP_VALID_E2E_FLOW_CONTROL_EN))
+ qp->e2e_flow_control_en = params->e2e_flow_control_en;
+ if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_DEST_QP))
+ qp->dest_qp = params->dest_qp;
+ if (GET_FIELD(params->modify_flags,
+ QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR)) {
+ /* Indicates that the following parameters have changed:
+ * Traffic class, flow label, hop limit, source GID,
+ * destination GID, loopback indicator
+ */
+ qp->traffic_class_tos = params->traffic_class_tos;
+ qp->flow_label = params->flow_label;
+ qp->hop_limit_ttl = params->hop_limit_ttl;
+
+ qp->sgid = params->sgid;
+ qp->dgid = params->dgid;
+ qp->udp_src_port = 0;
+ qp->vlan_id = params->vlan_id;
+ qp->mtu = params->mtu;
+ qp->lb_indication = params->lb_indication;
+ memcpy((u8 *)&qp->remote_mac_addr[0],
+ (u8 *)&params->remote_mac_addr[0], ETH_ALEN);
+ if (params->use_local_mac) {
+ memcpy((u8 *)&qp->local_mac_addr[0],
+ (u8 *)&params->local_mac_addr[0], ETH_ALEN);
+ } else {
+ memcpy((u8 *)&qp->local_mac_addr[0],
+ (u8 *)&p_hwfn->hw_info.hw_mac_addr, ETH_ALEN);
+ }
+ }
+ if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_RQ_PSN))
+ qp->rq_psn = params->rq_psn;
+ if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_SQ_PSN))
+ qp->sq_psn = params->sq_psn;
+ if (GET_FIELD(params->modify_flags,
+ QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_REQ))
+ qp->max_rd_atomic_req = params->max_rd_atomic_req;
+ if (GET_FIELD(params->modify_flags,
+ QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_RESP))
+ qp->max_rd_atomic_resp = params->max_rd_atomic_resp;
+ if (GET_FIELD(params->modify_flags,
+ QED_ROCE_MODIFY_QP_VALID_ACK_TIMEOUT))
+ qp->ack_timeout = params->ack_timeout;
+ if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_RETRY_CNT))
+ qp->retry_cnt = params->retry_cnt;
+ if (GET_FIELD(params->modify_flags,
+ QED_ROCE_MODIFY_QP_VALID_RNR_RETRY_CNT))
+ qp->rnr_retry_cnt = params->rnr_retry_cnt;
+ if (GET_FIELD(params->modify_flags,
+ QED_ROCE_MODIFY_QP_VALID_MIN_RNR_NAK_TIMER))
+ qp->min_rnr_nak_timer = params->min_rnr_nak_timer;
+
+ qp->sqd_async = params->sqd_async;
+
+ prev_state = qp->cur_state;
+ if (GET_FIELD(params->modify_flags,
+ QED_RDMA_MODIFY_QP_VALID_NEW_STATE)) {
+ qp->cur_state = params->new_state;
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "qp->cur_state=%d\n",
+ qp->cur_state);
+ }
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
+ enum qed_iwarp_qp_state new_state =
+ qed_roce2iwarp_state(qp->cur_state);
+
+ rc = qed_iwarp_modify_qp(p_hwfn, qp, new_state, 0);
+ } else {
+ rc = qed_roce_modify_qp(p_hwfn, qp, prev_state, params);
+ }
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify QP, rc = %d\n", rc);
+ return rc;
+}
+
+static int
+qed_rdma_register_tid(void *rdma_cxt,
+ struct qed_rdma_register_tid_in_params *params)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ struct rdma_register_tid_ramrod_data *p_ramrod;
+ struct qed_sp_init_data init_data;
+ struct qed_spq_entry *p_ent;
+ enum rdma_tid_type tid_type;
+ u8 fw_return_code;
+ int rc;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", params->itid);
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ 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_REGISTER_MR,
+ p_hwfn->p_rdma_info->proto, &init_data);
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
+ return rc;
+ }
+
+ if (p_hwfn->p_rdma_info->last_tid < params->itid)
+ p_hwfn->p_rdma_info->last_tid = params->itid;
+
+ p_ramrod = &p_ent->ramrod.rdma_register_tid;
+
+ p_ramrod->flags = 0;
+ SET_FIELD(p_ramrod->flags,
+ RDMA_REGISTER_TID_RAMROD_DATA_TWO_LEVEL_PBL,
+ params->pbl_two_level);
+
+ SET_FIELD(p_ramrod->flags,
+ RDMA_REGISTER_TID_RAMROD_DATA_ZERO_BASED, params->zbva);
+
+ SET_FIELD(p_ramrod->flags,
+ RDMA_REGISTER_TID_RAMROD_DATA_PHY_MR, params->phy_mr);
+
+ /* Don't initialize D/C field, as it may override other bits. */
+ if (!(params->tid_type == QED_RDMA_TID_FMR) && !(params->dma_mr))
+ SET_FIELD(p_ramrod->flags,
+ RDMA_REGISTER_TID_RAMROD_DATA_PAGE_SIZE_LOG,
+ params->page_size_log - 12);
+
+ SET_FIELD(p_ramrod->flags,
+ RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_READ,
+ params->remote_read);
+
+ SET_FIELD(p_ramrod->flags,
+ RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_WRITE,
+ params->remote_write);
+
+ SET_FIELD(p_ramrod->flags,
+ RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_ATOMIC,
+ params->remote_atomic);
+
+ SET_FIELD(p_ramrod->flags,
+ RDMA_REGISTER_TID_RAMROD_DATA_LOCAL_WRITE,
+ params->local_write);
+
+ SET_FIELD(p_ramrod->flags,
+ RDMA_REGISTER_TID_RAMROD_DATA_LOCAL_READ, params->local_read);
+
+ SET_FIELD(p_ramrod->flags,
+ RDMA_REGISTER_TID_RAMROD_DATA_ENABLE_MW_BIND,
+ params->mw_bind);
+
+ SET_FIELD(p_ramrod->flags1,
+ RDMA_REGISTER_TID_RAMROD_DATA_PBL_PAGE_SIZE_LOG,
+ params->pbl_page_size_log - 12);
+
+ SET_FIELD(p_ramrod->flags2,
+ RDMA_REGISTER_TID_RAMROD_DATA_DMA_MR, params->dma_mr);
+
+ switch (params->tid_type) {
+ case QED_RDMA_TID_REGISTERED_MR:
+ tid_type = RDMA_TID_REGISTERED_MR;
+ break;
+ case QED_RDMA_TID_FMR:
+ tid_type = RDMA_TID_FMR;
+ break;
+ case QED_RDMA_TID_MW_TYPE1:
+ tid_type = RDMA_TID_MW_TYPE1;
+ break;
+ case QED_RDMA_TID_MW_TYPE2A:
+ tid_type = RDMA_TID_MW_TYPE2A;
+ break;
+ default:
+ rc = -EINVAL;
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
+ return rc;
+ }
+ SET_FIELD(p_ramrod->flags1,
+ RDMA_REGISTER_TID_RAMROD_DATA_TID_TYPE, tid_type);
+
+ p_ramrod->itid = cpu_to_le32(params->itid);
+ p_ramrod->key = params->key;
+ p_ramrod->pd = cpu_to_le16(params->pd);
+ p_ramrod->length_hi = (u8)(params->length >> 32);
+ p_ramrod->length_lo = DMA_LO_LE(params->length);
+ if (params->zbva) {
+ /* Lower 32 bits of the registered MR address.
+ * In case of zero based MR, will hold FBO
+ */
+ p_ramrod->va.hi = 0;
+ p_ramrod->va.lo = cpu_to_le32(params->fbo);
+ } else {
+ DMA_REGPAIR_LE(p_ramrod->va, params->vaddr);
+ }
+ DMA_REGPAIR_LE(p_ramrod->pbl_base, params->pbl_ptr);
+
+ /* DIF */
+ if (params->dif_enabled) {
+ SET_FIELD(p_ramrod->flags2,
+ RDMA_REGISTER_TID_RAMROD_DATA_DIF_ON_HOST_FLG, 1);
+ DMA_REGPAIR_LE(p_ramrod->dif_error_addr,
+ params->dif_error_addr);
+ DMA_REGPAIR_LE(p_ramrod->dif_runt_addr, params->dif_runt_addr);
+ }
+
+ rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code);
+ if (rc)
+ return rc;
+
+ if (fw_return_code != RDMA_RETURN_OK) {
+ DP_NOTICE(p_hwfn, "fw_return_code = %d\n", fw_return_code);
+ return -EINVAL;
+ }
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Register TID, rc = %d\n", rc);
+ return rc;
+}
+
+static int qed_rdma_deregister_tid(void *rdma_cxt, u32 itid)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ struct rdma_deregister_tid_ramrod_data *p_ramrod;
+ struct qed_sp_init_data init_data;
+ struct qed_spq_entry *p_ent;
+ struct qed_ptt *p_ptt;
+ u8 fw_return_code;
+ int rc;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", itid);
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ 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_DEREGISTER_MR,
+ p_hwfn->p_rdma_info->proto, &init_data);
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
+ return rc;
+ }
+
+ p_ramrod = &p_ent->ramrod.rdma_deregister_tid;
+ p_ramrod->itid = cpu_to_le32(itid);
+
+ rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code);
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
+ return rc;
+ }
+
+ if (fw_return_code == RDMA_RETURN_DEREGISTER_MR_BAD_STATE_ERR) {
+ DP_NOTICE(p_hwfn, "fw_return_code = %d\n", fw_return_code);
+ return -EINVAL;
+ } else if (fw_return_code == RDMA_RETURN_NIG_DRAIN_REQ) {
+ /* Bit indicating that the TID is in use and a nig drain is
+ * required before sending the ramrod again
+ */
+ p_ptt = qed_ptt_acquire(p_hwfn);
+ if (!p_ptt) {
+ rc = -EBUSY;
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "Failed to acquire PTT\n");
+ return rc;
+ }
+
+ rc = qed_mcp_drain(p_hwfn, p_ptt);
+ if (rc) {
+ qed_ptt_release(p_hwfn, p_ptt);
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "Drain failed\n");
+ return rc;
+ }
+
+ qed_ptt_release(p_hwfn, p_ptt);
+
+ /* Resend the ramrod */
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ RDMA_RAMROD_DEREGISTER_MR,
+ p_hwfn->p_rdma_info->proto,
+ &init_data);
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "Failed to init sp-element\n");
+ return rc;
+ }
+
+ rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code);
+ if (rc) {
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "Ramrod failed\n");
+ return rc;
+ }
+
+ if (fw_return_code != RDMA_RETURN_OK) {
+ DP_NOTICE(p_hwfn, "fw_return_code = %d\n",
+ fw_return_code);
+ return rc;
+ }
+ }
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "De-registered TID, rc = %d\n", rc);
+ return rc;
+}
+
+static void *qed_rdma_get_rdma_ctx(struct qed_dev *cdev)
+{
+ return QED_LEADING_HWFN(cdev);
+}
+
+bool qed_rdma_allocated_qps(struct qed_hwfn *p_hwfn)
+{
+ bool result;
+
+ /* if rdma info has not been allocated, naturally there are no qps */
+ if (!p_hwfn->p_rdma_info)
+ return false;
+
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+ if (!p_hwfn->p_rdma_info->cid_map.bitmap)
+ result = false;
+ else
+ result = !qed_bmap_is_empty(&p_hwfn->p_rdma_info->cid_map);
+ spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
+ return result;
+}
+
+void qed_rdma_dpm_conf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
+{
+ u32 val;
+
+ val = (p_hwfn->dcbx_no_edpm || p_hwfn->db_bar_no_edpm) ? 0 : 1;
+
+ qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_DPM_ENABLE, val);
+ DP_VERBOSE(p_hwfn, (QED_MSG_DCB | QED_MSG_RDMA),
+ "Changing DPM_EN state to %d (DCBX=%d, DB_BAR=%d)\n",
+ val, p_hwfn->dcbx_no_edpm, p_hwfn->db_bar_no_edpm);
+}
+
+
+void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
+{
+ p_hwfn->db_bar_no_edpm = true;
+
+ qed_rdma_dpm_conf(p_hwfn, p_ptt);
+}
+
+static int qed_rdma_start(void *rdma_cxt,
+ struct qed_rdma_start_in_params *params)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+ struct qed_ptt *p_ptt;
+ int rc = -EBUSY;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "desired_cnq = %08x\n", params->desired_cnq);
+
+ p_ptt = qed_ptt_acquire(p_hwfn);
+ if (!p_ptt)
+ goto err;
+
+ rc = qed_rdma_alloc(p_hwfn, p_ptt, params);
+ if (rc)
+ goto err1;
+
+ rc = qed_rdma_setup(p_hwfn, p_ptt, params);
+ if (rc)
+ goto err2;
+
+ qed_ptt_release(p_hwfn, p_ptt);
+
+ return rc;
+
+err2:
+ qed_rdma_free(p_hwfn);
+err1:
+ qed_ptt_release(p_hwfn, p_ptt);
+err:
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA start - error, rc = %d\n", rc);
+ return rc;
+}
+
+static int qed_rdma_init(struct qed_dev *cdev,
+ struct qed_rdma_start_in_params *params)
+{
+ return qed_rdma_start(QED_LEADING_HWFN(cdev), params);
+}
+
+static void qed_rdma_remove_user(void *rdma_cxt, u16 dpi)
+{
+ struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "dpi = %08x\n", dpi);
+
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+ qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->dpi_map, dpi);
+ spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
+}
+
+static int qed_roce_ll2_set_mac_filter(struct qed_dev *cdev,
+ u8 *old_mac_address,
+ u8 *new_mac_address)
+{
+ struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_ptt *p_ptt;
+ int rc = 0;
+
+ p_ptt = qed_ptt_acquire(p_hwfn);
+ if (!p_ptt) {
+ DP_ERR(cdev,
+ "qed roce ll2 mac filter set: failed to acquire PTT\n");
+ return -EINVAL;
+ }
+
+ if (old_mac_address)
+ qed_llh_remove_mac_filter(p_hwfn, p_ptt, old_mac_address);
+ if (new_mac_address)
+ rc = qed_llh_add_mac_filter(p_hwfn, p_ptt, new_mac_address);
+
+ qed_ptt_release(p_hwfn, p_ptt);
+
+ if (rc)
+ DP_ERR(cdev,
+ "qed roce ll2 mac filter set: failed to add MAC filter\n");
+
+ return rc;
+}
+
+static const struct qed_rdma_ops qed_rdma_ops_pass = {
+ .common = &qed_common_ops_pass,
+ .fill_dev_info = &qed_fill_rdma_dev_info,
+ .rdma_get_rdma_ctx = &qed_rdma_get_rdma_ctx,
+ .rdma_init = &qed_rdma_init,
+ .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,
+ .rdma_create_qp = &qed_rdma_create_qp,
+ .rdma_modify_qp = &qed_rdma_modify_qp,
+ .rdma_query_qp = &qed_rdma_query_qp,
+ .rdma_destroy_qp = &qed_rdma_destroy_qp,
+ .rdma_alloc_tid = &qed_rdma_alloc_tid,
+ .rdma_free_tid = &qed_rdma_free_tid,
+ .rdma_register_tid = &qed_rdma_register_tid,
+ .rdma_deregister_tid = &qed_rdma_deregister_tid,
+ .ll2_acquire_connection = &qed_ll2_acquire_connection,
+ .ll2_establish_connection = &qed_ll2_establish_connection,
+ .ll2_terminate_connection = &qed_ll2_terminate_connection,
+ .ll2_release_connection = &qed_ll2_release_connection,
+ .ll2_post_rx_buffer = &qed_ll2_post_rx_buffer,
+ .ll2_prepare_tx_packet = &qed_ll2_prepare_tx_packet,
+ .ll2_set_fragment_of_tx_packet = &qed_ll2_set_fragment_of_tx_packet,
+ .ll2_set_mac_filter = &qed_roce_ll2_set_mac_filter,
+ .ll2_get_stats = &qed_ll2_get_stats,
+ .iwarp_connect = &qed_iwarp_connect,
+ .iwarp_create_listen = &qed_iwarp_create_listen,
+ .iwarp_destroy_listen = &qed_iwarp_destroy_listen,
+ .iwarp_accept = &qed_iwarp_accept,
+ .iwarp_reject = &qed_iwarp_reject,
+ .iwarp_send_rtr = &qed_iwarp_send_rtr,
+};
+
+const struct qed_rdma_ops *qed_get_rdma_ops(void)
+{
+ return &qed_rdma_ops_pass;
+}
+EXPORT_SYMBOL(qed_get_rdma_ops);
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