system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-07-22 02:37:15 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity
freebsd-src/sys/dev/irdma/irdma_kcompat.c
Bartosz Sobczak 5b5f7d0e77
irdma(4): Upgrade to 1.2.36-k 
Update Intel irdma driver to version 1.2.36-k.

Notable changes:

- Start using ib_sge directly instead of irdma_sge
- Turn off flush completion generator for libirdma
- Minor formatting changes

Signed-off-by: Bartosz Sobczak <bartosz.sobczak@intel.com>
Signed-off-by: Eric Joyner <erj@FreeBSD.org>

Reviewed by:	erj@
MFC after:	3 days
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D43567
2024-02-16 14:01:34 -08:00

1768 lines
48 KiB
C
Raw Blame History

/*-
* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
*
* Copyright (c) 2018 - 2023 Intel 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
* OpenFabrics.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 "irdma_main.h"
#define IRDMA_ROCE_UDP_ENCAP_VALID_PORT_MIN (0xC000)
static u16 kc_rdma_flow_label_to_udp_sport(u32 fl) {
u32 fl_low = fl & 0x03FFF;
u32 fl_high = fl & 0xFC000;
fl_low ^= fl_high >> 14;
return (u16)(fl_low | IRDMA_ROCE_UDP_ENCAP_VALID_PORT_MIN);
}
#define IRDMA_GRH_FLOWLABEL_MASK (0x000FFFFF)
static u32 kc_rdma_calc_flow_label(u32 lqpn, u32 rqpn) {
u64 fl = (u64)lqpn * rqpn;
fl ^= fl >> 20;
fl ^= fl >> 40;
return (u32)(fl & IRDMA_GRH_FLOWLABEL_MASK);
}
u16
kc_rdma_get_udp_sport(u32 fl, u32 lqpn, u32 rqpn)
{
if (!fl)
fl = kc_rdma_calc_flow_label(lqpn, rqpn);
return kc_rdma_flow_label_to_udp_sport(fl);
}
void
irdma_get_dev_fw_str(struct ib_device *dev,
char *str,
size_t str_len)
{
struct irdma_device *iwdev = to_iwdev(dev);
snprintf(str, str_len, "%u.%u",
irdma_fw_major_ver(&iwdev->rf->sc_dev),
irdma_fw_minor_ver(&iwdev->rf->sc_dev));
}
int
irdma_add_gid(struct ib_device *device,
u8 port_num,
unsigned int index,
const union ib_gid *gid,
const struct ib_gid_attr *attr,
void **context)
{
return 0;
}
int
irdma_del_gid(struct ib_device *device,
u8 port_num,
unsigned int index,
void **context)
{
return 0;
}
/**
* irdma_alloc_mr - register stag for fast memory registration
* @pd: ibpd pointer
* @mr_type: memory for stag registrion
* @max_num_sg: man number of pages
* @udata: user data
*/
struct ib_mr *
irdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
u32 max_num_sg, struct ib_udata *udata)
{
struct irdma_device *iwdev = to_iwdev(pd->device);
struct irdma_pble_alloc *palloc;
struct irdma_pbl *iwpbl;
struct irdma_mr *iwmr;
int status;
u32 stag;
int err_code = -ENOMEM;
iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
if (!iwmr)
return ERR_PTR(-ENOMEM);
stag = irdma_create_stag(iwdev);
if (!stag) {
err_code = -ENOMEM;
goto err;
}
iwmr->stag = stag;
iwmr->ibmr.rkey = stag;
iwmr->ibmr.lkey = stag;
iwmr->ibmr.pd = pd;
iwmr->ibmr.device = pd->device;
iwpbl = &iwmr->iwpbl;
iwpbl->iwmr = iwmr;
iwmr->type = IRDMA_MEMREG_TYPE_MEM;
palloc = &iwpbl->pble_alloc;
iwmr->page_cnt = max_num_sg;
/* Assume system PAGE_SIZE as the sg page sizes are unknown. */
iwmr->len = max_num_sg * PAGE_SIZE;
status = irdma_get_pble(iwdev->rf->pble_rsrc, palloc, iwmr->page_cnt,
false);
if (status)
goto err_get_pble;
err_code = irdma_hw_alloc_stag(iwdev, iwmr);
if (err_code)
goto err_alloc_stag;
iwpbl->pbl_allocated = true;
return &iwmr->ibmr;
err_alloc_stag:
irdma_free_pble(iwdev->rf->pble_rsrc, palloc);
err_get_pble:
irdma_free_stag(iwdev, stag);
err:
kfree(iwmr);
return ERR_PTR(err_code);
}
#define IRDMA_ALLOC_UCTX_MIN_REQ_LEN offsetofend(struct irdma_alloc_ucontext_req, rsvd8)
#define IRDMA_ALLOC_UCTX_MIN_RESP_LEN offsetofend(struct irdma_alloc_ucontext_resp, rsvd)
/**
* irdma_alloc_ucontext - Allocate the user context data structure
* @uctx: context
* @udata: user data
*
* This keeps track of all objects associated with a particular
* user-mode client.
*/
int
irdma_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata)
{
struct ib_device *ibdev = uctx->device;
struct irdma_device *iwdev = to_iwdev(ibdev);
struct irdma_alloc_ucontext_req req = {0};
struct irdma_alloc_ucontext_resp uresp = {0};
struct irdma_ucontext *ucontext = to_ucontext(uctx);
struct irdma_uk_attrs *uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs;
if (udata->inlen < IRDMA_ALLOC_UCTX_MIN_REQ_LEN ||
udata->outlen < IRDMA_ALLOC_UCTX_MIN_RESP_LEN)
return -EINVAL;
if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen)))
return -EINVAL;
if (req.userspace_ver < 4 || req.userspace_ver > IRDMA_ABI_VER)
goto ver_error;
ucontext->iwdev = iwdev;
ucontext->abi_ver = req.userspace_ver;
if (req.comp_mask & IRDMA_ALLOC_UCTX_USE_RAW_ATTR)
ucontext->use_raw_attrs = true;
/* GEN_1 support for libi40iw */
if (udata->outlen == IRDMA_ALLOC_UCTX_MIN_RESP_LEN) {
if (uk_attrs->hw_rev != IRDMA_GEN_1)
return -EOPNOTSUPP;
ucontext->legacy_mode = true;
uresp.max_qps = iwdev->rf->max_qp;
uresp.max_pds = iwdev->rf->sc_dev.hw_attrs.max_hw_pds;
uresp.wq_size = iwdev->rf->sc_dev.hw_attrs.max_qp_wr * 2;
uresp.kernel_ver = req.userspace_ver;
if (ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen)))
return -EFAULT;
} else {
u64 bar_off;
uresp.kernel_ver = IRDMA_ABI_VER;
uresp.feature_flags = uk_attrs->feature_flags;
uresp.max_hw_wq_frags = uk_attrs->max_hw_wq_frags;
uresp.max_hw_read_sges = uk_attrs->max_hw_read_sges;
uresp.max_hw_inline = uk_attrs->max_hw_inline;
uresp.max_hw_rq_quanta = uk_attrs->max_hw_rq_quanta;
uresp.max_hw_wq_quanta = uk_attrs->max_hw_wq_quanta;
uresp.max_hw_sq_chunk = uk_attrs->max_hw_sq_chunk;
uresp.max_hw_cq_size = uk_attrs->max_hw_cq_size;
uresp.min_hw_cq_size = uk_attrs->min_hw_cq_size;
uresp.hw_rev = uk_attrs->hw_rev;
uresp.comp_mask |= IRDMA_ALLOC_UCTX_USE_RAW_ATTR;
uresp.min_hw_wq_size = uk_attrs->min_hw_wq_size;
uresp.comp_mask |= IRDMA_ALLOC_UCTX_MIN_HW_WQ_SIZE;
bar_off =
(uintptr_t)iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET];
ucontext->db_mmap_entry =
irdma_user_mmap_entry_insert(ucontext, bar_off,
IRDMA_MMAP_IO_NC,
&uresp.db_mmap_key);
if (!ucontext->db_mmap_entry) {
return -ENOMEM;
}
if (ib_copy_to_udata(udata, &uresp,
min(sizeof(uresp), udata->outlen))) {
rdma_user_mmap_entry_remove(ucontext->db_mmap_entry);
return -EFAULT;
}
}
INIT_LIST_HEAD(&ucontext->cq_reg_mem_list);
spin_lock_init(&ucontext->cq_reg_mem_list_lock);
INIT_LIST_HEAD(&ucontext->qp_reg_mem_list);
spin_lock_init(&ucontext->qp_reg_mem_list_lock);
INIT_LIST_HEAD(&ucontext->vma_list);
mutex_init(&ucontext->vma_list_mutex);
return 0;
ver_error:
irdma_dev_err(&iwdev->ibdev,
"Invalid userspace driver version detected. Detected version %d, should be %d\n",
req.userspace_ver, IRDMA_ABI_VER);
return -EINVAL;
}
/**
* irdma_dealloc_ucontext - deallocate the user context data structure
* @context: user context created during alloc
*/
void
irdma_dealloc_ucontext(struct ib_ucontext *context)
{
struct irdma_ucontext *ucontext = to_ucontext(context);
rdma_user_mmap_entry_remove(ucontext->db_mmap_entry);
return;
}
#define IRDMA_ALLOC_PD_MIN_RESP_LEN offsetofend(struct irdma_alloc_pd_resp, rsvd)
/**
* irdma_alloc_pd - allocate protection domain
* @pd: protection domain
* @udata: user data
*/
int
irdma_alloc_pd(struct ib_pd *pd, struct ib_udata *udata)
{
struct irdma_pd *iwpd = to_iwpd(pd);
struct irdma_device *iwdev = to_iwdev(pd->device);
struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
struct irdma_pci_f *rf = iwdev->rf;
struct irdma_alloc_pd_resp uresp = {0};
struct irdma_sc_pd *sc_pd;
u32 pd_id = 0;
int err;
if (udata && udata->outlen < IRDMA_ALLOC_PD_MIN_RESP_LEN)
return -EINVAL;
err = irdma_alloc_rsrc(rf, rf->allocated_pds, rf->max_pd, &pd_id,
&rf->next_pd);
if (err)
return err;
sc_pd = &iwpd->sc_pd;
if (udata) {
struct irdma_ucontext *ucontext =
rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext);
irdma_sc_pd_init(dev, sc_pd, pd_id, ucontext->abi_ver);
uresp.pd_id = pd_id;
if (ib_copy_to_udata(udata, &uresp,
min(sizeof(uresp), udata->outlen))) {
err = -EFAULT;
goto error;
}
} else {
irdma_sc_pd_init(dev, sc_pd, pd_id, IRDMA_ABI_VER);
}
spin_lock_init(&iwpd->udqp_list_lock);
INIT_LIST_HEAD(&iwpd->udqp_list);
return 0;
error:
irdma_free_rsrc(rf, rf->allocated_pds, pd_id);
return err;
}
void
irdma_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
{
struct irdma_pd *iwpd = to_iwpd(ibpd);
struct irdma_device *iwdev = to_iwdev(ibpd->device);
irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_pds, iwpd->sc_pd.pd_id);
}
/**
* irdma_find_qp_update_qs - update QS handle for UD QPs
* @rf: RDMA PCI function
* @pd: protection domain object
* @user_pri: selected user priority
*/
static void
irdma_find_qp_update_qs(struct irdma_pci_f *rf,
struct irdma_pd *pd, u8 user_pri)
{
struct irdma_qp *iwqp;
struct list_head *tmp_node, *list_node;
struct irdma_udqs_work *work;
unsigned long flags;
bool qs_change;
spin_lock_irqsave(&pd->udqp_list_lock, flags);
list_for_each_safe(list_node, tmp_node, &pd->udqp_list) {
qs_change = true;
iwqp = list_entry(list_node, struct irdma_qp, ud_list_elem);
irdma_qp_add_ref(&iwqp->ibqp);
/* check if qs_handle needs to be changed */
if (iwqp->sc_qp.qs_handle == iwqp->sc_qp.vsi->qos[user_pri].qs_handle) {
if (iwqp->ctx_info.user_pri == user_pri) {
/* qs_handle and user_pri don't change */
irdma_qp_rem_ref(&iwqp->ibqp);
continue;
}
qs_change = false;
}
/* perform qp qos change */
work = kzalloc(sizeof(*work), GFP_ATOMIC);
if (!work) {
irdma_qp_rem_ref(&iwqp->ibqp);
spin_unlock_irqrestore(&pd->udqp_list_lock, flags);
return;
}
work->iwqp = iwqp;
work->user_prio = user_pri;
work->qs_change = qs_change;
INIT_WORK(&work->work, irdma_udqp_qs_worker);
if (qs_change)
irdma_cqp_qp_suspend_resume(&iwqp->sc_qp, IRDMA_OP_SUSPEND);
queue_work(rf->iwdev->cleanup_wq, &work->work);
}
spin_unlock_irqrestore(&pd->udqp_list_lock, flags);
}
static void
irdma_fill_ah_info(struct vnet *vnet, struct irdma_ah_info *ah_info,
const struct ib_gid_attr *sgid_attr,
union irdma_sockaddr *sgid_addr,
union irdma_sockaddr *dgid_addr,
u8 *dmac, u8 net_type)
{
if (net_type == RDMA_NETWORK_IPV4) {
ah_info->ipv4_valid = true;
ah_info->dest_ip_addr[0] =
ntohl(dgid_addr->saddr_in.sin_addr.s_addr);
ah_info->src_ip_addr[0] =
ntohl(sgid_addr->saddr_in.sin_addr.s_addr);
CURVNET_SET_QUIET(vnet);
ah_info->do_lpbk = irdma_ipv4_is_lpb(ah_info->src_ip_addr[0],
ah_info->dest_ip_addr[0]);
CURVNET_RESTORE();
if (ipv4_is_multicast(dgid_addr->saddr_in.sin_addr.s_addr)) {
irdma_mcast_mac_v4(ah_info->dest_ip_addr, dmac);
}
} else {
irdma_copy_ip_ntohl(ah_info->dest_ip_addr,
dgid_addr->saddr_in6.sin6_addr.__u6_addr.__u6_addr32);
irdma_copy_ip_ntohl(ah_info->src_ip_addr,
sgid_addr->saddr_in6.sin6_addr.__u6_addr.__u6_addr32);
ah_info->do_lpbk = irdma_ipv6_is_lpb(ah_info->src_ip_addr,
ah_info->dest_ip_addr);
if (rdma_is_multicast_addr(&dgid_addr->saddr_in6.sin6_addr)) {
irdma_mcast_mac_v6(ah_info->dest_ip_addr, dmac);
}
}
}
static inline u8 irdma_roce_get_vlan_prio(if_t ndev, u8 prio)
{
return prio;
}
static int
irdma_create_ah_vlan_tag(struct irdma_device *iwdev,
struct irdma_pd *pd,
struct irdma_ah_info *ah_info,
const struct ib_gid_attr *sgid_attr,
u8 *dmac)
{
u16 vlan_prio;
if (sgid_attr->ndev && is_vlan_dev(sgid_attr->ndev))
ah_info->vlan_tag = vlan_dev_vlan_id(sgid_attr->ndev);
else
ah_info->vlan_tag = VLAN_N_VID;
ah_info->dst_arpindex = irdma_add_arp(iwdev->rf, ah_info->dest_ip_addr, dmac);
if (ah_info->dst_arpindex == -1)
return -EINVAL;
if (ah_info->vlan_tag >= VLAN_N_VID && iwdev->dcb_vlan_mode)
ah_info->vlan_tag = 0;
if (ah_info->vlan_tag < VLAN_N_VID) {
ah_info->insert_vlan_tag = true;
vlan_prio = (u16)irdma_roce_get_vlan_prio(sgid_attr->ndev,
rt_tos2priority(ah_info->tc_tos));
ah_info->vlan_tag |= vlan_prio << VLAN_PRIO_SHIFT;
irdma_find_qp_update_qs(iwdev->rf, pd, vlan_prio);
}
if (iwdev->roce_dcqcn_en) {
ah_info->tc_tos &= ~ECN_CODE_PT_MASK;
ah_info->tc_tos |= ECN_CODE_PT_VAL;
}
return 0;
}
static int
irdma_create_ah_wait(struct irdma_pci_f *rf,
struct irdma_sc_ah *sc_ah, bool sleep)
{
int ret;
if (!sleep) {
int cnt = rf->sc_dev.hw_attrs.max_cqp_compl_wait_time_ms *
CQP_TIMEOUT_THRESHOLD;
struct irdma_cqp_request *cqp_request =
sc_ah->ah_info.cqp_request;
do {
irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq);
mdelay(1);
} while (!READ_ONCE(cqp_request->request_done) && --cnt);
if (cnt && !cqp_request->compl_info.op_ret_val) {
irdma_put_cqp_request(&rf->cqp, cqp_request);
sc_ah->ah_info.ah_valid = true;
} else {
ret = !cnt ? -ETIMEDOUT : -EINVAL;
irdma_dev_err(&rf->iwdev->ibdev, "CQP create AH error ret = %d opt_ret_val = %d",
ret, cqp_request->compl_info.op_ret_val);
irdma_put_cqp_request(&rf->cqp, cqp_request);
if (!cnt && !rf->reset) {
rf->reset = true;
rf->gen_ops.request_reset(rf);
}
return ret;
}
}
return 0;
}
#define IRDMA_CREATE_AH_MIN_RESP_LEN offsetofend(struct irdma_create_ah_resp, rsvd)
/**
* irdma_create_ah - create address handle
* @ib_ah: ptr to AH
* @attr: address handle attributes
* @flags: AH flags to wait
* @udata: user data
*
* returns 0 on success, error otherwise
*/
int
irdma_create_ah(struct ib_ah *ib_ah,
struct ib_ah_attr *attr, u32 flags,
struct ib_udata *udata)
{
struct irdma_pd *pd = to_iwpd(ib_ah->pd);
struct irdma_ah *ah = container_of(ib_ah, struct irdma_ah, ibah);
struct irdma_device *iwdev = to_iwdev(ib_ah->pd->device);
union ib_gid sgid;
struct ib_gid_attr sgid_attr;
struct irdma_pci_f *rf = iwdev->rf;
struct irdma_sc_ah *sc_ah;
u32 ah_id = 0;
struct irdma_ah_info *ah_info;
struct irdma_create_ah_resp uresp = {};
union irdma_sockaddr sgid_addr, dgid_addr;
int err;
u8 dmac[ETHER_ADDR_LEN];
bool sleep = (flags & RDMA_CREATE_AH_SLEEPABLE) != 0;
if (udata && udata->outlen < IRDMA_CREATE_AH_MIN_RESP_LEN)
return -EINVAL;
err = irdma_alloc_rsrc(rf, rf->allocated_ahs,
rf->max_ah, &ah_id, &rf->next_ah);
if (err)
return err;
ah->pd = pd;
sc_ah = &ah->sc_ah;
sc_ah->ah_info.ah_idx = ah_id;
sc_ah->ah_info.vsi = &iwdev->vsi;
irdma_sc_init_ah(&rf->sc_dev, sc_ah);
ah->sgid_index = attr->grh.sgid_index;
memcpy(&ah->dgid, &attr->grh.dgid, sizeof(ah->dgid));
rcu_read_lock();
err = ib_get_cached_gid(&iwdev->ibdev, attr->port_num,
attr->grh.sgid_index, &sgid, &sgid_attr);
rcu_read_unlock();
if (err) {
irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS,
"GID lookup at idx=%d with port=%d failed\n",
attr->grh.sgid_index, attr->port_num);
err = -EINVAL;
goto err_gid_l2;
}
rdma_gid2ip((struct sockaddr *)&sgid_addr, &sgid);
rdma_gid2ip((struct sockaddr *)&dgid_addr, &attr->grh.dgid);
ah->av.attrs = *attr;
ah->av.net_type = ib_gid_to_network_type(sgid_attr.gid_type, &sgid);
if (sgid_attr.ndev)
dev_put(sgid_attr.ndev);
ah_info = &sc_ah->ah_info;
ah_info->ah_idx = ah_id;
ah_info->pd_idx = pd->sc_pd.pd_id;
ether_addr_copy(ah_info->mac_addr, if_getlladdr(iwdev->netdev));
if (attr->ah_flags & IB_AH_GRH) {
ah_info->flow_label = attr->grh.flow_label;
ah_info->hop_ttl = attr->grh.hop_limit;
ah_info->tc_tos = attr->grh.traffic_class;
}
ether_addr_copy(dmac, attr->dmac);
irdma_fill_ah_info(if_getvnet(iwdev->netdev), ah_info, &sgid_attr, &sgid_addr, &dgid_addr,
dmac, ah->av.net_type);
err = irdma_create_ah_vlan_tag(iwdev, pd, ah_info, &sgid_attr, dmac);
if (err)
goto err_gid_l2;
err = irdma_ah_cqp_op(iwdev->rf, sc_ah, IRDMA_OP_AH_CREATE,
sleep, NULL, sc_ah);
if (err) {
irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_DEV, "CQP-OP Create AH fail");
goto err_gid_l2;
}
err = irdma_create_ah_wait(rf, sc_ah, sleep);
if (err)
goto err_gid_l2;
if (udata) {
uresp.ah_id = ah->sc_ah.ah_info.ah_idx;
err = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen));
if (err) {
irdma_ah_cqp_op(iwdev->rf, &ah->sc_ah,
IRDMA_OP_AH_DESTROY, false, NULL, ah);
goto err_gid_l2;
}
}
return 0;
err_gid_l2:
irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs, ah_id);
return err;
}
void
irdma_ether_copy(u8 *dmac, struct ib_ah_attr *attr)
{
ether_addr_copy(dmac, attr->dmac);
}
int
irdma_create_ah_stub(struct ib_ah *ib_ah,
struct ib_ah_attr *attr, u32 flags,
struct ib_udata *udata)
{
return -ENOSYS;
}
void
irdma_destroy_ah_stub(struct ib_ah *ibah, u32 flags)
{
return;
}
/**
* irdma_free_qp_rsrc - free up memory resources for qp
* @iwqp: qp ptr (user or kernel)
*/
void
irdma_free_qp_rsrc(struct irdma_qp *iwqp)
{
struct irdma_device *iwdev = iwqp->iwdev;
struct irdma_pci_f *rf = iwdev->rf;
u32 qp_num = iwqp->ibqp.qp_num;
irdma_ieq_cleanup_qp(iwdev->vsi.ieq, &iwqp->sc_qp);
irdma_dealloc_push_page(rf, iwqp);
if (iwqp->sc_qp.vsi) {
irdma_qp_rem_qos(&iwqp->sc_qp);
iwqp->sc_qp.dev->ws_remove(iwqp->sc_qp.vsi,
iwqp->sc_qp.user_pri);
}
if (qp_num > 2)
irdma_free_rsrc(rf, rf->allocated_qps, qp_num);
irdma_free_dma_mem(rf->sc_dev.hw, &iwqp->q2_ctx_mem);
irdma_free_dma_mem(rf->sc_dev.hw, &iwqp->kqp.dma_mem);
kfree(iwqp->kqp.sig_trk_mem);
iwqp->kqp.sig_trk_mem = NULL;
kfree(iwqp->kqp.sq_wrid_mem);
kfree(iwqp->kqp.rq_wrid_mem);
kfree(iwqp->sg_list);
kfree(iwqp);
}
/**
* irdma_create_qp - create qp
* @ibpd: ptr of pd
* @init_attr: attributes for qp
* @udata: user data for create qp
*/
struct ib_qp *
irdma_create_qp(struct ib_pd *ibpd,
struct ib_qp_init_attr *init_attr,
struct ib_udata *udata)
{
#define IRDMA_CREATE_QP_MIN_REQ_LEN offsetofend(struct irdma_create_qp_req, user_compl_ctx)
#define IRDMA_CREATE_QP_MIN_RESP_LEN offsetofend(struct irdma_create_qp_resp, rsvd)
struct irdma_pd *iwpd = to_iwpd(ibpd);
struct irdma_device *iwdev = to_iwdev(ibpd->device);
struct irdma_pci_f *rf = iwdev->rf;
struct irdma_qp *iwqp;
struct irdma_create_qp_resp uresp = {0};
u32 qp_num = 0;
int ret;
int err_code;
struct irdma_sc_qp *qp;
struct irdma_sc_dev *dev = &rf->sc_dev;
struct irdma_uk_attrs *uk_attrs = &dev->hw_attrs.uk_attrs;
struct irdma_qp_init_info init_info = {{0}};
struct irdma_qp_host_ctx_info *ctx_info;
unsigned long flags;
err_code = irdma_validate_qp_attrs(init_attr, iwdev);
if (err_code)
return ERR_PTR(err_code);
if (udata && (udata->inlen < IRDMA_CREATE_QP_MIN_REQ_LEN ||
udata->outlen < IRDMA_CREATE_QP_MIN_RESP_LEN))
return ERR_PTR(-EINVAL);
init_info.vsi = &iwdev->vsi;
init_info.qp_uk_init_info.uk_attrs = uk_attrs;
init_info.qp_uk_init_info.sq_size = init_attr->cap.max_send_wr;
init_info.qp_uk_init_info.rq_size = init_attr->cap.max_recv_wr;
init_info.qp_uk_init_info.max_sq_frag_cnt = init_attr->cap.max_send_sge;
init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr->cap.max_recv_sge;
init_info.qp_uk_init_info.max_inline_data = init_attr->cap.max_inline_data;
iwqp = kzalloc(sizeof(*iwqp), GFP_KERNEL);
if (!iwqp)
return ERR_PTR(-ENOMEM);
iwqp->sg_list = kcalloc(uk_attrs->max_hw_wq_frags, sizeof(*iwqp->sg_list),
GFP_KERNEL);
if (!iwqp->sg_list) {
kfree(iwqp);
return ERR_PTR(-ENOMEM);
}
qp = &iwqp->sc_qp;
qp->qp_uk.back_qp = iwqp;
qp->qp_uk.lock = &iwqp->lock;
qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX;
iwqp->iwdev = iwdev;
iwqp->q2_ctx_mem.size = IRDMA_Q2_BUF_SIZE + IRDMA_QP_CTX_SIZE;
iwqp->q2_ctx_mem.va = irdma_allocate_dma_mem(dev->hw, &iwqp->q2_ctx_mem,
iwqp->q2_ctx_mem.size,
256);
if (!iwqp->q2_ctx_mem.va) {
kfree(iwqp->sg_list);
kfree(iwqp);
return ERR_PTR(-ENOMEM);
}
init_info.q2 = iwqp->q2_ctx_mem.va;
init_info.q2_pa = iwqp->q2_ctx_mem.pa;
init_info.host_ctx = (__le64 *) (init_info.q2 + IRDMA_Q2_BUF_SIZE);
init_info.host_ctx_pa = init_info.q2_pa + IRDMA_Q2_BUF_SIZE;
if (init_attr->qp_type == IB_QPT_GSI)
qp_num = 1;
else
err_code = irdma_alloc_rsrc(rf, rf->allocated_qps, rf->max_qp,
&qp_num, &rf->next_qp);
if (err_code)
goto error;
iwqp->iwpd = iwpd;
iwqp->ibqp.qp_num = qp_num;
qp = &iwqp->sc_qp;
iwqp->iwscq = to_iwcq(init_attr->send_cq);
iwqp->iwrcq = to_iwcq(init_attr->recv_cq);
iwqp->host_ctx.va = init_info.host_ctx;
iwqp->host_ctx.pa = init_info.host_ctx_pa;
iwqp->host_ctx.size = IRDMA_QP_CTX_SIZE;
init_info.pd = &iwpd->sc_pd;
init_info.qp_uk_init_info.qp_id = iwqp->ibqp.qp_num;
if (!rdma_protocol_roce(&iwdev->ibdev, 1))
init_info.qp_uk_init_info.first_sq_wq = 1;
iwqp->ctx_info.qp_compl_ctx = (uintptr_t)qp;
init_waitqueue_head(&iwqp->waitq);
init_waitqueue_head(&iwqp->mod_qp_waitq);
spin_lock_init(&iwqp->dwork_flush_lock);
if (udata) {
init_info.qp_uk_init_info.abi_ver = iwpd->sc_pd.abi_ver;
err_code = irdma_setup_umode_qp(udata, iwdev, iwqp, &init_info, init_attr);
} else {
INIT_DELAYED_WORK(&iwqp->dwork_flush, irdma_flush_worker);
init_info.qp_uk_init_info.abi_ver = IRDMA_ABI_VER;
err_code = irdma_setup_kmode_qp(iwdev, iwqp, &init_info, init_attr);
}
if (err_code) {
irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "setup qp failed\n");
goto error;
}
if (rdma_protocol_roce(&iwdev->ibdev, 1)) {
if (init_attr->qp_type == IB_QPT_RC) {
init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_ROCE_RC;
init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM |
IRDMA_WRITE_WITH_IMM |
IRDMA_ROCE;
} else {
init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_ROCE_UD;
init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM |
IRDMA_ROCE;
}
} else {
init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_IWARP;
init_info.qp_uk_init_info.qp_caps = IRDMA_WRITE_WITH_IMM;
}
ret = irdma_sc_qp_init(qp, &init_info);
if (ret) {
err_code = -EPROTO;
irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "qp_init fail\n");
goto error;
}
ctx_info = &iwqp->ctx_info;
ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;
ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;
if (rdma_protocol_roce(&iwdev->ibdev, 1))
irdma_roce_fill_and_set_qpctx_info(iwqp, ctx_info);
else
irdma_iw_fill_and_set_qpctx_info(iwqp, ctx_info);
err_code = irdma_cqp_create_qp_cmd(iwqp);
if (err_code)
goto error;
atomic_set(&iwqp->refcnt, 1);
spin_lock_init(&iwqp->lock);
spin_lock_init(&iwqp->sc_qp.pfpdu.lock);
iwqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) ? 1 : 0;
rf->qp_table[qp_num] = iwqp;
if (rdma_protocol_roce(&iwdev->ibdev, 1)) {
if (dev->ws_add(&iwdev->vsi, 0)) {
irdma_cqp_qp_destroy_cmd(&rf->sc_dev, &iwqp->sc_qp);
err_code = -EINVAL;
goto error;
}
irdma_qp_add_qos(&iwqp->sc_qp);
spin_lock_irqsave(&iwpd->udqp_list_lock, flags);
if (iwqp->sc_qp.qp_uk.qp_type == IRDMA_QP_TYPE_ROCE_UD)
list_add_tail(&iwqp->ud_list_elem, &iwpd->udqp_list);
spin_unlock_irqrestore(&iwpd->udqp_list_lock, flags);
}
if (udata) {
/* GEN_1 legacy support with libi40iw does not have expanded uresp struct */
if (udata->outlen == IRDMA_CREATE_QP_MIN_RESP_LEN) {
uresp.lsmm = 1;
uresp.push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX_GEN_1;
} else {
if (rdma_protocol_iwarp(&iwdev->ibdev, 1)) {
uresp.lsmm = 1;
if (qp->qp_uk.start_wqe_idx) {
uresp.comp_mask |= IRDMA_CREATE_QP_USE_START_WQE_IDX;
uresp.start_wqe_idx = qp->qp_uk.start_wqe_idx;
}
}
}
uresp.actual_sq_size = init_info.qp_uk_init_info.sq_size;
uresp.actual_rq_size = init_info.qp_uk_init_info.rq_size;
uresp.qp_id = qp_num;
uresp.qp_caps = qp->qp_uk.qp_caps;
err_code = ib_copy_to_udata(udata, &uresp,
min(sizeof(uresp), udata->outlen));
if (err_code) {
irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "copy_to_udata failed\n");
irdma_destroy_qp(&iwqp->ibqp, udata);
return ERR_PTR(err_code);
}
}
init_completion(&iwqp->free_qp);
return &iwqp->ibqp;
error:
irdma_free_qp_rsrc(iwqp);
return ERR_PTR(err_code);
}
/**
* irdma_destroy_qp - destroy qp
* @ibqp: qp's ib pointer also to get to device's qp address
* @udata: user data
*/
int
irdma_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata)
{
struct irdma_qp *iwqp = to_iwqp(ibqp);
struct irdma_device *iwdev = iwqp->iwdev;
unsigned long flags;
if (iwqp->sc_qp.qp_uk.destroy_pending)
goto free_rsrc;
iwqp->sc_qp.qp_uk.destroy_pending = true;
spin_lock_irqsave(&iwqp->iwpd->udqp_list_lock, flags);
if (iwqp->sc_qp.qp_uk.qp_type == IRDMA_QP_TYPE_ROCE_UD)
list_del(&iwqp->ud_list_elem);
spin_unlock_irqrestore(&iwqp->iwpd->udqp_list_lock, flags);
if (iwqp->iwarp_state >= IRDMA_QP_STATE_IDLE)
irdma_modify_qp_to_err(&iwqp->sc_qp);
if (!iwqp->user_mode) {
if (iwqp->iwscq) {
irdma_clean_cqes(iwqp, iwqp->iwscq);
if (iwqp->iwrcq != iwqp->iwscq)
irdma_clean_cqes(iwqp, iwqp->iwrcq);
}
}
irdma_qp_rem_ref(&iwqp->ibqp);
wait_for_completion(&iwqp->free_qp);
irdma_free_lsmm_rsrc(iwqp);
if (!iwdev->rf->reset && irdma_cqp_qp_destroy_cmd(&iwdev->rf->sc_dev, &iwqp->sc_qp))
return (iwdev->rf->rdma_ver <= IRDMA_GEN_2 && !iwqp->user_mode) ? 0 : -ENOTRECOVERABLE;
free_rsrc:
irdma_remove_push_mmap_entries(iwqp);
irdma_free_qp_rsrc(iwqp);
return 0;
}
/**
* irdma_create_cq - create cq
* @ibcq: CQ allocated
* @attr: attributes for cq
* @udata: user data
*/
int
irdma_create_cq(struct ib_cq *ibcq,
const struct ib_cq_init_attr *attr,
struct ib_udata *udata)
{
#define IRDMA_CREATE_CQ_MIN_REQ_LEN offsetofend(struct irdma_create_cq_req, user_cq_buf)
#define IRDMA_CREATE_CQ_MIN_RESP_LEN offsetofend(struct irdma_create_cq_resp, cq_size)
struct ib_device *ibdev = ibcq->device;
struct irdma_device *iwdev = to_iwdev(ibdev);
struct irdma_pci_f *rf = iwdev->rf;
struct irdma_cq *iwcq = to_iwcq(ibcq);
u32 cq_num = 0;
struct irdma_sc_cq *cq;
struct irdma_sc_dev *dev = &rf->sc_dev;
struct irdma_cq_init_info info = {0};
int status;
struct irdma_cqp_request *cqp_request;
struct cqp_cmds_info *cqp_info;
struct irdma_cq_uk_init_info *ukinfo = &info.cq_uk_init_info;
unsigned long flags;
int err_code;
int entries = attr->cqe;
bool cqe_64byte_ena;
err_code = cq_validate_flags(attr->flags, dev->hw_attrs.uk_attrs.hw_rev);
if (err_code)
return err_code;
if (udata && (udata->inlen < IRDMA_CREATE_CQ_MIN_REQ_LEN ||
udata->outlen < IRDMA_CREATE_CQ_MIN_RESP_LEN))
return -EINVAL;
err_code = irdma_alloc_rsrc(rf, rf->allocated_cqs, rf->max_cq, &cq_num,
&rf->next_cq);
if (err_code)
return err_code;
cq = &iwcq->sc_cq;
cq->back_cq = iwcq;
atomic_set(&iwcq->refcnt, 1);
spin_lock_init(&iwcq->lock);
INIT_LIST_HEAD(&iwcq->resize_list);
INIT_LIST_HEAD(&iwcq->cmpl_generated);
info.dev = dev;
ukinfo->cq_size = max(entries, 4);
ukinfo->cq_id = cq_num;
cqe_64byte_ena = (dev->hw_attrs.uk_attrs.feature_flags & IRDMA_FEATURE_64_BYTE_CQE) ? true : false;
ukinfo->avoid_mem_cflct = cqe_64byte_ena;
iwcq->ibcq.cqe = info.cq_uk_init_info.cq_size;
atomic_set(&iwcq->armed, 0);
if (attr->comp_vector < rf->ceqs_count)
info.ceq_id = attr->comp_vector;
info.ceq_id_valid = true;
info.ceqe_mask = 1;
info.type = IRDMA_CQ_TYPE_IWARP;
info.vsi = &iwdev->vsi;
if (udata) {
struct irdma_ucontext *ucontext;
struct irdma_create_cq_req req = {0};
struct irdma_cq_mr *cqmr;
struct irdma_pbl *iwpbl;
struct irdma_pbl *iwpbl_shadow;
struct irdma_cq_mr *cqmr_shadow;
iwcq->user_mode = true;
ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext);
if (ib_copy_from_udata(&req, udata,
min(sizeof(req), udata->inlen))) {
err_code = -EFAULT;
goto cq_free_rsrc;
}
spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
iwpbl = irdma_get_pbl((unsigned long)req.user_cq_buf,
&ucontext->cq_reg_mem_list);
spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
if (!iwpbl) {
err_code = -EPROTO;
goto cq_free_rsrc;
}
iwcq->iwpbl = iwpbl;
iwcq->cq_mem_size = 0;
cqmr = &iwpbl->cq_mr;
if (rf->sc_dev.hw_attrs.uk_attrs.feature_flags &
IRDMA_FEATURE_CQ_RESIZE && !ucontext->legacy_mode) {
spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
iwpbl_shadow = irdma_get_pbl((unsigned long)req.user_shadow_area,
&ucontext->cq_reg_mem_list);
spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
if (!iwpbl_shadow) {
err_code = -EPROTO;
goto cq_free_rsrc;
}
iwcq->iwpbl_shadow = iwpbl_shadow;
cqmr_shadow = &iwpbl_shadow->cq_mr;
info.shadow_area_pa = cqmr_shadow->cq_pbl.addr;
cqmr->split = true;
} else {
info.shadow_area_pa = cqmr->shadow;
}
if (iwpbl->pbl_allocated) {
info.virtual_map = true;
info.pbl_chunk_size = 1;
info.first_pm_pbl_idx = cqmr->cq_pbl.idx;
} else {
info.cq_base_pa = cqmr->cq_pbl.addr;
}
} else {
/* Kmode allocations */
int rsize;
if (entries < 1 || entries > rf->max_cqe) {
err_code = -EINVAL;
goto cq_free_rsrc;
}
entries++;
if (!cqe_64byte_ena && dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)
entries *= 2;
ukinfo->cq_size = entries;
if (cqe_64byte_ena)
rsize = info.cq_uk_init_info.cq_size * sizeof(struct irdma_extended_cqe);
else
rsize = info.cq_uk_init_info.cq_size * sizeof(struct irdma_cqe);
iwcq->kmem.size = round_up(rsize, IRDMA_HW_PAGE_SIZE);
iwcq->kmem.va = irdma_allocate_dma_mem(dev->hw, &iwcq->kmem,
iwcq->kmem.size, IRDMA_HW_PAGE_SIZE);
if (!iwcq->kmem.va) {
err_code = -ENOMEM;
goto cq_free_rsrc;
}
iwcq->kmem_shadow.size = IRDMA_SHADOW_AREA_SIZE << 3;
iwcq->kmem_shadow.va = irdma_allocate_dma_mem(dev->hw,
&iwcq->kmem_shadow,
iwcq->kmem_shadow.size,
64);
if (!iwcq->kmem_shadow.va) {
err_code = -ENOMEM;
goto cq_kmem_free;
}
info.shadow_area_pa = iwcq->kmem_shadow.pa;
ukinfo->shadow_area = iwcq->kmem_shadow.va;
ukinfo->cq_base = iwcq->kmem.va;
info.cq_base_pa = iwcq->kmem.pa;
}
info.shadow_read_threshold = min(info.cq_uk_init_info.cq_size / 2,
(u32)IRDMA_MAX_CQ_READ_THRESH);
if (irdma_sc_cq_init(cq, &info)) {
irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "init cq fail\n");
err_code = -EPROTO;
goto cq_kmem_free;
}
cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
if (!cqp_request) {
err_code = -ENOMEM;
goto cq_kmem_free;
}
cqp_info = &cqp_request->info;
cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE;
cqp_info->post_sq = 1;
cqp_info->in.u.cq_create.cq = cq;
cqp_info->in.u.cq_create.check_overflow = true;
cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request;
status = irdma_handle_cqp_op(rf, cqp_request);
irdma_put_cqp_request(&rf->cqp, cqp_request);
if (status) {
err_code = -ENOMEM;
goto cq_kmem_free;
}
if (udata) {
struct irdma_create_cq_resp resp = {0};
resp.cq_id = info.cq_uk_init_info.cq_id;
resp.cq_size = info.cq_uk_init_info.cq_size;
if (ib_copy_to_udata(udata, &resp,
min(sizeof(resp), udata->outlen))) {
irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "copy to user data\n");
err_code = -EPROTO;
goto cq_destroy;
}
}
rf->cq_table[cq_num] = iwcq;
init_completion(&iwcq->free_cq);
return 0;
cq_destroy:
irdma_cq_wq_destroy(rf, cq);
cq_kmem_free:
if (!iwcq->user_mode) {
irdma_free_dma_mem(dev->hw, &iwcq->kmem);
irdma_free_dma_mem(dev->hw, &iwcq->kmem_shadow);
}
cq_free_rsrc:
irdma_free_rsrc(rf, rf->allocated_cqs, cq_num);
return err_code;
}
/**
* irdma_copy_user_pgaddrs - copy user page address to pble's os locally
* @iwmr: iwmr for IB's user page addresses
* @pbl: ple pointer to save 1 level or 0 level pble
* @level: indicated level 0, 1 or 2
*/
void
irdma_copy_user_pgaddrs(struct irdma_mr *iwmr, u64 *pbl,
enum irdma_pble_level level)
{
struct ib_umem *region = iwmr->region;
struct irdma_pbl *iwpbl = &iwmr->iwpbl;
int chunk_pages, entry, i;
struct scatterlist *sg;
u64 pg_addr = 0;
struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
struct irdma_pble_info *pinfo;
u32 idx = 0;
u32 pbl_cnt = 0;
pinfo = (level == PBLE_LEVEL_1) ? NULL : palloc->level2.leaf;
for_each_sg(region->sg_head.sgl, sg, region->nmap, entry) {
chunk_pages = DIV_ROUND_UP(sg_dma_len(sg), iwmr->page_size);
if (iwmr->type == IRDMA_MEMREG_TYPE_QP && !iwpbl->qp_mr.sq_page)
iwpbl->qp_mr.sq_page = sg_page(sg);
for (i = 0; i < chunk_pages; i++) {
pg_addr = sg_dma_address(sg) + (i * iwmr->page_size);
if ((entry + i) == 0)
*pbl = pg_addr & iwmr->page_msk;
else if (!(pg_addr & ~iwmr->page_msk))
*pbl = pg_addr;
else
continue;
if (++pbl_cnt == palloc->total_cnt)
break;
pbl = irdma_next_pbl_addr(pbl, &pinfo, &idx);
}
}
}
/**
* irdma_destroy_ah - Destroy address handle
* @ibah: pointer to address handle
* @ah_flags: destroy flags
*/
void
irdma_destroy_ah(struct ib_ah *ibah, u32 ah_flags)
{
struct irdma_device *iwdev = to_iwdev(ibah->device);
struct irdma_ah *ah = to_iwah(ibah);
irdma_ah_cqp_op(iwdev->rf, &ah->sc_ah, IRDMA_OP_AH_DESTROY,
false, NULL, ah);
irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs,
ah->sc_ah.ah_info.ah_idx);
}
int
irdma_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata)
{
struct irdma_mr *iwmr = to_iwmr(ib_mr);
struct irdma_device *iwdev = to_iwdev(ib_mr->device);
struct irdma_pbl *iwpbl = &iwmr->iwpbl;
int ret;
if (iwmr->type != IRDMA_MEMREG_TYPE_MEM) {
if (iwmr->region) {
struct irdma_ucontext *ucontext;
ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext);
irdma_del_memlist(iwmr, ucontext);
}
goto done;
}
ret = irdma_hwdereg_mr(ib_mr);
if (ret)
return ret;
irdma_free_stag(iwdev, iwmr->stag);
done:
if (iwpbl->pbl_allocated)
irdma_free_pble(iwdev->rf->pble_rsrc, &iwpbl->pble_alloc);
if (iwmr->region)
ib_umem_release(iwmr->region);
kfree(iwmr);
return 0;
}
/*
* irdma_rereg_user_mr - Re-Register a user memory region @ibmr: ib mem to access iwarp mr pointer @flags: bit mask to
* indicate which of the attr's of MR modified @start: virtual start address @len: length of mr @virt: virtual address
* @new access flags: bit mask of access flags @new_pd: ptr of pd @udata: user data
*/
int
irdma_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start, u64 len,
u64 virt, int new_access, struct ib_pd *new_pd,
struct ib_udata *udata)
{
struct irdma_device *iwdev = to_iwdev(ib_mr->device);
struct irdma_mr *iwmr = to_iwmr(ib_mr);
struct irdma_pbl *iwpbl = &iwmr->iwpbl;
int ret;
if (len > iwdev->rf->sc_dev.hw_attrs.max_mr_size)
return -EINVAL;
if (flags & ~(IB_MR_REREG_TRANS | IB_MR_REREG_PD | IB_MR_REREG_ACCESS))
return -EOPNOTSUPP;
ret = irdma_hwdereg_mr(ib_mr);
if (ret)
return ret;
if (flags & IB_MR_REREG_ACCESS)
iwmr->access = new_access;
if (flags & IB_MR_REREG_PD) {
iwmr->ibmr.pd = new_pd;
iwmr->ibmr.device = new_pd->device;
}
if (flags & IB_MR_REREG_TRANS) {
if (iwpbl->pbl_allocated) {
irdma_free_pble(iwdev->rf->pble_rsrc,
&iwpbl->pble_alloc);
iwpbl->pbl_allocated = false;
}
if (iwmr->region) {
ib_umem_release(iwmr->region);
iwmr->region = NULL;
}
ib_mr = irdma_rereg_mr_trans(iwmr, start, len, virt, udata);
if (IS_ERR(ib_mr))
return PTR_ERR(ib_mr);
} else {
ret = irdma_hwreg_mr(iwdev, iwmr, iwmr->access);
if (ret)
return ret;
}
return 0;
}
int
kc_irdma_set_roce_cm_info(struct irdma_qp *iwqp, struct ib_qp_attr *attr,
u16 *vlan_id)
{
int ret;
union ib_gid sgid;
struct ib_gid_attr sgid_attr;
struct irdma_av *av = &iwqp->roce_ah.av;
ret = ib_get_cached_gid(iwqp->ibqp.device, attr->ah_attr.port_num,
attr->ah_attr.grh.sgid_index, &sgid,
&sgid_attr);
if (ret)
return ret;
if (sgid_attr.ndev) {
*vlan_id = rdma_vlan_dev_vlan_id(sgid_attr.ndev);
ether_addr_copy(iwqp->ctx_info.roce_info->mac_addr, if_getlladdr(sgid_attr.ndev));
}
av->net_type = ib_gid_to_network_type(sgid_attr.gid_type, &sgid);
rdma_gid2ip((struct sockaddr *)&av->sgid_addr, &sgid);
dev_put(sgid_attr.ndev);
iwqp->sc_qp.user_pri = iwqp->ctx_info.user_pri;
return 0;
}
/**
* irdma_destroy_cq - destroy cq
* @ib_cq: cq pointer
* @udata: user data
*/
void
irdma_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata)
{
struct irdma_device *iwdev = to_iwdev(ib_cq->device);
struct irdma_cq *iwcq = to_iwcq(ib_cq);
struct irdma_sc_cq *cq = &iwcq->sc_cq;
struct irdma_sc_dev *dev = cq->dev;
struct irdma_sc_ceq *ceq = dev->ceq[cq->ceq_id];
struct irdma_ceq *iwceq = container_of(ceq, struct irdma_ceq, sc_ceq);
unsigned long flags;
spin_lock_irqsave(&iwcq->lock, flags);
if (!list_empty(&iwcq->cmpl_generated))
irdma_remove_cmpls_list(iwcq);
if (!list_empty(&iwcq->resize_list))
irdma_process_resize_list(iwcq, iwdev, NULL);
spin_unlock_irqrestore(&iwcq->lock, flags);
irdma_cq_rem_ref(ib_cq);
wait_for_completion(&iwcq->free_cq);
irdma_cq_wq_destroy(iwdev->rf, cq);
spin_lock_irqsave(&iwceq->ce_lock, flags);
irdma_sc_cleanup_ceqes(cq, ceq);
spin_unlock_irqrestore(&iwceq->ce_lock, flags);
irdma_cq_free_rsrc(iwdev->rf, iwcq);
}
/**
* kc_set_loc_seq_num_mss - Set local seq number and mss
* @cm_node: cm node info
*/
void
kc_set_loc_seq_num_mss(struct irdma_cm_node *cm_node)
{
struct timespec ts;
getnanotime(&ts);
cm_node->tcp_cntxt.loc_seq_num = ts.tv_nsec;
if (cm_node->iwdev->vsi.mtu > 1500 &&
2 * cm_node->iwdev->vsi.mtu > cm_node->iwdev->rcv_wnd)
cm_node->tcp_cntxt.mss = (cm_node->ipv4) ?
(1500 - IRDMA_MTU_TO_MSS_IPV4) :
(1500 - IRDMA_MTU_TO_MSS_IPV6);
else
cm_node->tcp_cntxt.mss = (cm_node->ipv4) ?
(cm_node->iwdev->vsi.mtu - IRDMA_MTU_TO_MSS_IPV4) :
(cm_node->iwdev->vsi.mtu - IRDMA_MTU_TO_MSS_IPV6);
}
/**
* irdma_disassociate_ucontext - Disassociate user context
* @context: ib user context
*/
void
irdma_disassociate_ucontext(struct ib_ucontext *context)
{
}
struct ib_device *
ib_device_get_by_netdev(if_t netdev, int driver_id)
{
struct irdma_device *iwdev;
struct irdma_handler *hdl;
unsigned long flags;
spin_lock_irqsave(&irdma_handler_lock, flags);
list_for_each_entry(hdl, &irdma_handlers, list) {
iwdev = hdl->iwdev;
if (netdev == iwdev->netdev) {
spin_unlock_irqrestore(&irdma_handler_lock,
flags);
return &iwdev->ibdev;
}
}
spin_unlock_irqrestore(&irdma_handler_lock, flags);
return NULL;
}
void
ib_unregister_device_put(struct ib_device *device)
{
ib_unregister_device(device);
}
/**
* irdma_query_gid_roce - Query port GID for Roce
* @ibdev: device pointer from stack
* @port: port number
* @index: Entry index
* @gid: Global ID
*/
int
irdma_query_gid_roce(struct ib_device *ibdev, u8 port, int index,
union ib_gid *gid)
{
int ret;
ret = ib_get_cached_gid(ibdev, port, index, gid, NULL);
if (ret == -EAGAIN) {
memcpy(gid, &zgid, sizeof(*gid));
return 0;
}
return ret;
}
/**
* irdma_modify_port - modify port attributes
* @ibdev: device pointer from stack
* @port: port number for query
* @mask: Property mask
* @props: returning device attributes
*/
int
irdma_modify_port(struct ib_device *ibdev, u8 port, int mask,
struct ib_port_modify *props)
{
if (port > 1)
return -EINVAL;
return 0;
}
/**
* irdma_query_pkey - Query partition key
* @ibdev: device pointer from stack
* @port: port number
* @index: index of pkey
* @pkey: pointer to store the pkey
*/
int
irdma_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
u16 *pkey)
{
if (index >= IRDMA_PKEY_TBL_SZ)
return -EINVAL;
*pkey = IRDMA_DEFAULT_PKEY;
return 0;
}
int
irdma_roce_port_immutable(struct ib_device *ibdev, u8 port_num,
struct ib_port_immutable *immutable)
{
struct ib_port_attr attr;
int err;
immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;
err = ib_query_port(ibdev, port_num, &attr);
if (err)
return err;
immutable->max_mad_size = IB_MGMT_MAD_SIZE;
immutable->pkey_tbl_len = attr.pkey_tbl_len;
immutable->gid_tbl_len = attr.gid_tbl_len;
return 0;
}
int
irdma_iw_port_immutable(struct ib_device *ibdev, u8 port_num,
struct ib_port_immutable *immutable)
{
struct ib_port_attr attr;
int err;
immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
err = ib_query_port(ibdev, port_num, &attr);
if (err)
return err;
immutable->gid_tbl_len = 1;
return 0;
}
/**
* irdma_query_port - get port attributes
* @ibdev: device pointer from stack
* @port: port number for query
* @props: returning device attributes
*/
int
irdma_query_port(struct ib_device *ibdev, u8 port,
struct ib_port_attr *props)
{
struct irdma_device *iwdev = to_iwdev(ibdev);
if_t netdev = iwdev->netdev;
/* no need to zero out pros here. done by caller */
props->max_mtu = IB_MTU_4096;
props->active_mtu = ib_mtu_int_to_enum(if_getmtu(netdev));
props->lid = 1;
props->lmc = 0;
props->sm_lid = 0;
props->sm_sl = 0;
if ((if_getlinkstate(netdev) == LINK_STATE_UP) &&
(if_getdrvflags(netdev) & IFF_DRV_RUNNING)) {
props->state = IB_PORT_ACTIVE;
props->phys_state = IB_PORT_PHYS_STATE_LINK_UP;
} else {
props->state = IB_PORT_DOWN;
props->phys_state = IB_PORT_PHYS_STATE_DISABLED;
}
ib_get_eth_speed(ibdev, port, &props->active_speed, &props->active_width);
if (rdma_protocol_roce(ibdev, 1)) {
props->gid_tbl_len = 32;
props->port_cap_flags |= IB_PORT_IP_BASED_GIDS;
props->pkey_tbl_len = IRDMA_PKEY_TBL_SZ;
} else {
props->gid_tbl_len = 1;
}
props->qkey_viol_cntr = 0;
props->port_cap_flags |= IB_PORT_CM_SUP | IB_PORT_REINIT_SUP;
props->max_msg_sz = iwdev->rf->sc_dev.hw_attrs.max_hw_outbound_msg_size;
return 0;
}
static const char *const irdma_hw_stat_names[] = {
/* gen1 - 32-bit */
[IRDMA_HW_STAT_INDEX_IP4RXDISCARD] = "ip4InDiscards",
[IRDMA_HW_STAT_INDEX_IP4RXTRUNC] = "ip4InTruncatedPkts",
[IRDMA_HW_STAT_INDEX_IP4TXNOROUTE] = "ip4OutNoRoutes",
[IRDMA_HW_STAT_INDEX_IP6RXDISCARD] = "ip6InDiscards",
[IRDMA_HW_STAT_INDEX_IP6RXTRUNC] = "ip6InTruncatedPkts",
[IRDMA_HW_STAT_INDEX_IP6TXNOROUTE] = "ip6OutNoRoutes",
[IRDMA_HW_STAT_INDEX_RXVLANERR] = "rxVlanErrors",
/* gen1 - 64-bit */
[IRDMA_HW_STAT_INDEX_IP4RXOCTS] = "ip4InOctets",
[IRDMA_HW_STAT_INDEX_IP4RXPKTS] = "ip4InPkts",
[IRDMA_HW_STAT_INDEX_IP4RXFRAGS] = "ip4InReasmRqd",
[IRDMA_HW_STAT_INDEX_IP4RXMCPKTS] = "ip4InMcastPkts",
[IRDMA_HW_STAT_INDEX_IP4TXOCTS] = "ip4OutOctets",
[IRDMA_HW_STAT_INDEX_IP4TXPKTS] = "ip4OutPkts",
[IRDMA_HW_STAT_INDEX_IP4TXFRAGS] = "ip4OutSegRqd",
[IRDMA_HW_STAT_INDEX_IP4TXMCPKTS] = "ip4OutMcastPkts",
[IRDMA_HW_STAT_INDEX_IP6RXOCTS] = "ip6InOctets",
[IRDMA_HW_STAT_INDEX_IP6RXPKTS] = "ip6InPkts",
[IRDMA_HW_STAT_INDEX_IP6RXFRAGS] = "ip6InReasmRqd",
[IRDMA_HW_STAT_INDEX_IP6RXMCPKTS] = "ip6InMcastPkts",
[IRDMA_HW_STAT_INDEX_IP6TXOCTS] = "ip6OutOctets",
[IRDMA_HW_STAT_INDEX_IP6TXPKTS] = "ip6OutPkts",
[IRDMA_HW_STAT_INDEX_IP6TXFRAGS] = "ip6OutSegRqd",
[IRDMA_HW_STAT_INDEX_IP6TXMCPKTS] = "ip6OutMcastPkts",
[IRDMA_HW_STAT_INDEX_RDMARXRDS] = "InRdmaReads",
[IRDMA_HW_STAT_INDEX_RDMARXSNDS] = "InRdmaSends",
[IRDMA_HW_STAT_INDEX_RDMARXWRS] = "InRdmaWrites",
[IRDMA_HW_STAT_INDEX_RDMATXRDS] = "OutRdmaReads",
[IRDMA_HW_STAT_INDEX_RDMATXSNDS] = "OutRdmaSends",
[IRDMA_HW_STAT_INDEX_RDMATXWRS] = "OutRdmaWrites",
[IRDMA_HW_STAT_INDEX_RDMAVBND] = "RdmaBnd",
[IRDMA_HW_STAT_INDEX_RDMAVINV] = "RdmaInv",
/* gen2 - 32-bit */
[IRDMA_HW_STAT_INDEX_RXRPCNPHANDLED] = "cnpHandled",
[IRDMA_HW_STAT_INDEX_RXRPCNPIGNORED] = "cnpIgnored",
[IRDMA_HW_STAT_INDEX_TXNPCNPSENT] = "cnpSent",
/* gen2 - 64-bit */
[IRDMA_HW_STAT_INDEX_IP4RXMCOCTS] = "ip4InMcastOctets",
[IRDMA_HW_STAT_INDEX_IP4TXMCOCTS] = "ip4OutMcastOctets",
[IRDMA_HW_STAT_INDEX_IP6RXMCOCTS] = "ip6InMcastOctets",
[IRDMA_HW_STAT_INDEX_IP6TXMCOCTS] = "ip6OutMcastOctets",
[IRDMA_HW_STAT_INDEX_UDPRXPKTS] = "RxUDP",
[IRDMA_HW_STAT_INDEX_UDPTXPKTS] = "TxUDP",
[IRDMA_HW_STAT_INDEX_RXNPECNMARKEDPKTS] = "RxECNMrkd",
[IRDMA_HW_STAT_INDEX_TCPRTXSEG] = "RetransSegs",
[IRDMA_HW_STAT_INDEX_TCPRXOPTERR] = "InOptErrors",
[IRDMA_HW_STAT_INDEX_TCPRXPROTOERR] = "InProtoErrors",
[IRDMA_HW_STAT_INDEX_TCPRXSEGS] = "InSegs",
[IRDMA_HW_STAT_INDEX_TCPTXSEG] = "OutSegs",
};
/**
* irdma_alloc_hw_stats - Allocate a hw stats structure
* @ibdev: device pointer from stack
* @port_num: port number
*/
struct rdma_hw_stats *
irdma_alloc_hw_stats(struct ib_device *ibdev,
u8 port_num)
{
struct irdma_device *iwdev = to_iwdev(ibdev);
struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
int num_counters = dev->hw_attrs.max_stat_idx;
unsigned long lifespan = RDMA_HW_STATS_DEFAULT_LIFESPAN;
return rdma_alloc_hw_stats_struct(irdma_hw_stat_names, num_counters,
lifespan);
}
/**
* irdma_get_hw_stats - Populates the rdma_hw_stats structure
* @ibdev: device pointer from stack
* @stats: stats pointer from stack
* @port_num: port number
* @index: which hw counter the stack is requesting we update
*/
int
irdma_get_hw_stats(struct ib_device *ibdev,
struct rdma_hw_stats *stats, u8 port_num,
int index)
{
struct irdma_device *iwdev = to_iwdev(ibdev);
struct irdma_dev_hw_stats *hw_stats = &iwdev->vsi.pestat->hw_stats;
if (iwdev->rf->rdma_ver >= IRDMA_GEN_2)
irdma_cqp_gather_stats_cmd(&iwdev->rf->sc_dev, iwdev->vsi.pestat, true);
memcpy(&stats->value[0], hw_stats, sizeof(u64)* stats->num_counters);
return stats->num_counters;
}
/**
* irdma_query_gid - Query port GID
* @ibdev: device pointer from stack
* @port: port number
* @index: Entry index
* @gid: Global ID
*/
int
irdma_query_gid(struct ib_device *ibdev, u8 port, int index,
union ib_gid *gid)
{
struct irdma_device *iwdev = to_iwdev(ibdev);
memset(gid->raw, 0, sizeof(gid->raw));
ether_addr_copy(gid->raw, if_getlladdr(iwdev->netdev));
return 0;
}
enum rdma_link_layer
irdma_get_link_layer(struct ib_device *ibdev,
u8 port_num)
{
return IB_LINK_LAYER_ETHERNET;
}
inline enum ib_mtu
ib_mtu_int_to_enum(int mtu)
{
if (mtu >= 4096)
return IB_MTU_4096;
else if (mtu >= 2048)
return IB_MTU_2048;
else if (mtu >= 1024)
return IB_MTU_1024;
else if (mtu >= 512)
return IB_MTU_512;
else
return IB_MTU_256;
}
inline void
kc_set_roce_uverbs_cmd_mask(struct irdma_device *iwdev)
{
iwdev->ibdev.uverbs_cmd_mask |=
BIT_ULL(IB_USER_VERBS_CMD_ATTACH_MCAST) |
BIT_ULL(IB_USER_VERBS_CMD_CREATE_AH) |
BIT_ULL(IB_USER_VERBS_CMD_DESTROY_AH) |
BIT_ULL(IB_USER_VERBS_CMD_DETACH_MCAST);
}
inline void
kc_set_rdma_uverbs_cmd_mask(struct irdma_device *iwdev)
{
iwdev->ibdev.uverbs_cmd_mask =
BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT) |
BIT_ULL(IB_USER_VERBS_CMD_QUERY_DEVICE) |
BIT_ULL(IB_USER_VERBS_CMD_QUERY_PORT) |
BIT_ULL(IB_USER_VERBS_CMD_ALLOC_PD) |
BIT_ULL(IB_USER_VERBS_CMD_DEALLOC_PD) |
BIT_ULL(IB_USER_VERBS_CMD_REG_MR) |
BIT_ULL(IB_USER_VERBS_CMD_REREG_MR) |
BIT_ULL(IB_USER_VERBS_CMD_DEREG_MR) |
BIT_ULL(IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
BIT_ULL(IB_USER_VERBS_CMD_CREATE_CQ) |
BIT_ULL(IB_USER_VERBS_CMD_RESIZE_CQ) |
BIT_ULL(IB_USER_VERBS_CMD_DESTROY_CQ) |
BIT_ULL(IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
BIT_ULL(IB_USER_VERBS_CMD_CREATE_QP) |
BIT_ULL(IB_USER_VERBS_CMD_MODIFY_QP) |
BIT_ULL(IB_USER_VERBS_CMD_QUERY_QP) |
BIT_ULL(IB_USER_VERBS_CMD_POLL_CQ) |
BIT_ULL(IB_USER_VERBS_CMD_DESTROY_QP) |
BIT_ULL(IB_USER_VERBS_CMD_POST_RECV) |
BIT_ULL(IB_USER_VERBS_CMD_POST_SEND);
iwdev->ibdev.uverbs_ex_cmd_mask =
BIT_ULL(IB_USER_VERBS_EX_CMD_MODIFY_QP) |
BIT_ULL(IB_USER_VERBS_EX_CMD_QUERY_DEVICE);
if (iwdev->rf->rdma_ver >= IRDMA_GEN_2)
iwdev->ibdev.uverbs_ex_cmd_mask |= BIT_ULL(IB_USER_VERBS_EX_CMD_CREATE_CQ);
}
int
ib_get_eth_speed(struct ib_device *ibdev, u32 port_num, u8 *speed, u8 *width)
{
if_t netdev = ibdev->get_netdev(ibdev, port_num);
u32 netdev_speed;
if (!netdev)
return -ENODEV;
netdev_speed = if_getbaudrate(netdev);
dev_put(netdev);
if (netdev_speed <= SPEED_1000) {
*width = IB_WIDTH_1X;
*speed = IB_SPEED_SDR;
} else if (netdev_speed <= SPEED_10000) {
*width = IB_WIDTH_1X;
*speed = IB_SPEED_FDR10;
} else if (netdev_speed <= SPEED_20000) {
*width = IB_WIDTH_4X;
*speed = IB_SPEED_DDR;
} else if (netdev_speed <= SPEED_25000) {
*width = IB_WIDTH_1X;
*speed = IB_SPEED_EDR;
} else if (netdev_speed <= SPEED_40000) {
*width = IB_WIDTH_4X;
*speed = IB_SPEED_FDR10;
} else {
*width = IB_WIDTH_4X;
*speed = IB_SPEED_EDR;
}
return 0;
}
u64
irdma_mac_to_u64(const u8 *eth_add)
{
int idx;
u64 u64_eth_add;
for (idx = 0, u64_eth_add = 0; idx < ETHER_ADDR_LEN; idx++)
u64_eth_add = u64_eth_add << 8 | eth_add[idx];
return u64_eth_add;
}
Reference in a new issue View git blame Copy permalink