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linux/drivers/infiniband/hw/i40iw/i40iw_hw.c
Shiraz Saleem aaf5e003b1 i40iw: Reorganize acquire/release of locks in i40iw_manage_apbvt 
Commit f43c00c04b ("i40iw: Extend port reuse support for listeners")
introduces a sparse warning:

include/linux/spinlock.h:365:9: sparse: context imbalance in
'i40iw_manage_apbvt' - unexpected unlock

Fix this by reorganizing the acquire/release of locks in
i40iw_manage_apbvt and add a new function i40iw_cqp_manage_abvpt_cmd
to perform the CQP command. Also, use __clear_bit and __test_and_set_bit
as we do not need atomic versions.

Fixes: f43c00c04b ("i40iw: Extend port reuse support for listeners")
Suggested-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-18 11:09:05 -06:00

853 lines
25 KiB
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/*******************************************************************************
*
* Copyright (c) 2015-2016 Intel Corporation. All rights reserved.
*
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* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
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* 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.
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*******************************************************************************/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/if_vlan.h>
#include "i40iw.h"
/**
* i40iw_initialize_hw_resources - initialize hw resource during open
* @iwdev: iwarp device
*/
u32 i40iw_initialize_hw_resources(struct i40iw_device *iwdev)
{
unsigned long num_pds;
u32 resources_size;
u32 max_mr;
u32 max_qp;
u32 max_cq;
u32 arp_table_size;
u32 mrdrvbits;
void *resource_ptr;
max_qp = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_QP].cnt;
max_cq = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_CQ].cnt;
max_mr = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_MR].cnt;
arp_table_size = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_ARP].cnt;
iwdev->max_cqe = 0xFFFFF;
num_pds = I40IW_MAX_PDS;
resources_size = sizeof(struct i40iw_arp_entry) * arp_table_size;
resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_qp);
resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_mr);
resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_cq);
resources_size += sizeof(unsigned long) * BITS_TO_LONGS(num_pds);
resources_size += sizeof(unsigned long) * BITS_TO_LONGS(arp_table_size);
resources_size += sizeof(struct i40iw_qp **) * max_qp;
iwdev->mem_resources = kzalloc(resources_size, GFP_KERNEL);
if (!iwdev->mem_resources)
return -ENOMEM;
iwdev->max_qp = max_qp;
iwdev->max_mr = max_mr;
iwdev->max_cq = max_cq;
iwdev->max_pd = num_pds;
iwdev->arp_table_size = arp_table_size;
iwdev->arp_table = (struct i40iw_arp_entry *)iwdev->mem_resources;
resource_ptr = iwdev->mem_resources + (sizeof(struct i40iw_arp_entry) * arp_table_size);
iwdev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
IB_DEVICE_MEM_WINDOW | IB_DEVICE_MEM_MGT_EXTENSIONS;
iwdev->allocated_qps = resource_ptr;
iwdev->allocated_cqs = &iwdev->allocated_qps[BITS_TO_LONGS(max_qp)];
iwdev->allocated_mrs = &iwdev->allocated_cqs[BITS_TO_LONGS(max_cq)];
iwdev->allocated_pds = &iwdev->allocated_mrs[BITS_TO_LONGS(max_mr)];
iwdev->allocated_arps = &iwdev->allocated_pds[BITS_TO_LONGS(num_pds)];
iwdev->qp_table = (struct i40iw_qp **)(&iwdev->allocated_arps[BITS_TO_LONGS(arp_table_size)]);
set_bit(0, iwdev->allocated_mrs);
set_bit(0, iwdev->allocated_qps);
set_bit(0, iwdev->allocated_cqs);
set_bit(0, iwdev->allocated_pds);
set_bit(0, iwdev->allocated_arps);
/* Following for ILQ/IEQ */
set_bit(1, iwdev->allocated_qps);
set_bit(1, iwdev->allocated_cqs);
set_bit(1, iwdev->allocated_pds);
set_bit(2, iwdev->allocated_cqs);
set_bit(2, iwdev->allocated_pds);
spin_lock_init(&iwdev->resource_lock);
spin_lock_init(&iwdev->qptable_lock);
/* stag index mask has a minimum of 14 bits */
mrdrvbits = 24 - max(get_count_order(iwdev->max_mr), 14);
iwdev->mr_stagmask = ~(((1 << mrdrvbits) - 1) << (32 - mrdrvbits));
return 0;
}
/**
* i40iw_cqp_ce_handler - handle cqp completions
* @iwdev: iwarp device
* @arm: flag to arm after completions
* @cq: cq for cqp completions
*/
static void i40iw_cqp_ce_handler(struct i40iw_device *iwdev, struct i40iw_sc_cq *cq, bool arm)
{
struct i40iw_cqp_request *cqp_request;
struct i40iw_sc_dev *dev = &iwdev->sc_dev;
u32 cqe_count = 0;
struct i40iw_ccq_cqe_info info;
int ret;
do {
memset(&info, 0, sizeof(info));
ret = dev->ccq_ops->ccq_get_cqe_info(cq, &info);
if (ret)
break;
cqp_request = (struct i40iw_cqp_request *)(unsigned long)info.scratch;
if (info.error)
i40iw_pr_err("opcode = 0x%x maj_err_code = 0x%x min_err_code = 0x%x\n",
info.op_code, info.maj_err_code, info.min_err_code);
if (cqp_request) {
cqp_request->compl_info.maj_err_code = info.maj_err_code;
cqp_request->compl_info.min_err_code = info.min_err_code;
cqp_request->compl_info.op_ret_val = info.op_ret_val;
cqp_request->compl_info.error = info.error;
if (cqp_request->waiting) {
cqp_request->request_done = true;
wake_up(&cqp_request->waitq);
i40iw_put_cqp_request(&iwdev->cqp, cqp_request);
} else {
if (cqp_request->callback_fcn)
cqp_request->callback_fcn(cqp_request, 1);
i40iw_put_cqp_request(&iwdev->cqp, cqp_request);
}
}
cqe_count++;
} while (1);
if (arm && cqe_count) {
i40iw_process_bh(dev);
dev->ccq_ops->ccq_arm(cq);
}
}
/**
* i40iw_iwarp_ce_handler - handle iwarp completions
* @iwdev: iwarp device
* @iwcp: iwarp cq receiving event
*/
static void i40iw_iwarp_ce_handler(struct i40iw_device *iwdev,
struct i40iw_sc_cq *iwcq)
{
struct i40iw_cq *i40iwcq = iwcq->back_cq;
if (i40iwcq->ibcq.comp_handler)
i40iwcq->ibcq.comp_handler(&i40iwcq->ibcq,
i40iwcq->ibcq.cq_context);
}
/**
* i40iw_puda_ce_handler - handle puda completion events
* @iwdev: iwarp device
* @cq: puda completion q for event
*/
static void i40iw_puda_ce_handler(struct i40iw_device *iwdev,
struct i40iw_sc_cq *cq)
{
struct i40iw_sc_dev *dev = (struct i40iw_sc_dev *)&iwdev->sc_dev;
enum i40iw_status_code status;
u32 compl_error;
do {
status = i40iw_puda_poll_completion(dev, cq, &compl_error);
if (status == I40IW_ERR_QUEUE_EMPTY)
break;
if (status) {
i40iw_pr_err("puda status = %d\n", status);
break;
}
if (compl_error) {
i40iw_pr_err("puda compl_err =0x%x\n", compl_error);
break;
}
} while (1);
dev->ccq_ops->ccq_arm(cq);
}
/**
* i40iw_process_ceq - handle ceq for completions
* @iwdev: iwarp device
* @ceq: ceq having cq for completion
*/
void i40iw_process_ceq(struct i40iw_device *iwdev, struct i40iw_ceq *ceq)
{
struct i40iw_sc_dev *dev = &iwdev->sc_dev;
struct i40iw_sc_ceq *sc_ceq;
struct i40iw_sc_cq *cq;
bool arm = true;
sc_ceq = &ceq->sc_ceq;
do {
cq = dev->ceq_ops->process_ceq(dev, sc_ceq);
if (!cq)
break;
if (cq->cq_type == I40IW_CQ_TYPE_CQP)
i40iw_cqp_ce_handler(iwdev, cq, arm);
else if (cq->cq_type == I40IW_CQ_TYPE_IWARP)
i40iw_iwarp_ce_handler(iwdev, cq);
else if ((cq->cq_type == I40IW_CQ_TYPE_ILQ) ||
(cq->cq_type == I40IW_CQ_TYPE_IEQ))
i40iw_puda_ce_handler(iwdev, cq);
} while (1);
}
/**
* i40iw_next_iw_state - modify qp state
* @iwqp: iwarp qp to modify
* @state: next state for qp
* @del_hash: del hash
* @term: term message
* @termlen: length of term message
*/
void i40iw_next_iw_state(struct i40iw_qp *iwqp,
u8 state,
u8 del_hash,
u8 term,
u8 termlen)
{
struct i40iw_modify_qp_info info;
memset(&info, 0, sizeof(info));
info.next_iwarp_state = state;
info.remove_hash_idx = del_hash;
info.cq_num_valid = true;
info.arp_cache_idx_valid = true;
info.dont_send_term = true;
info.dont_send_fin = true;
info.termlen = termlen;
if (term & I40IWQP_TERM_SEND_TERM_ONLY)
info.dont_send_term = false;
if (term & I40IWQP_TERM_SEND_FIN_ONLY)
info.dont_send_fin = false;
if (iwqp->sc_qp.term_flags && (state == I40IW_QP_STATE_ERROR))
info.reset_tcp_conn = true;
iwqp->hw_iwarp_state = state;
i40iw_hw_modify_qp(iwqp->iwdev, iwqp, &info, 0);
}
/**
* i40iw_process_aeq - handle aeq events
* @iwdev: iwarp device
*/
void i40iw_process_aeq(struct i40iw_device *iwdev)
{
struct i40iw_sc_dev *dev = &iwdev->sc_dev;
struct i40iw_aeq *aeq = &iwdev->aeq;
struct i40iw_sc_aeq *sc_aeq = &aeq->sc_aeq;
struct i40iw_aeqe_info aeinfo;
struct i40iw_aeqe_info *info = &aeinfo;
int ret;
struct i40iw_qp *iwqp = NULL;
struct i40iw_sc_cq *cq = NULL;
struct i40iw_cq *iwcq = NULL;
struct i40iw_sc_qp *qp = NULL;
struct i40iw_qp_host_ctx_info *ctx_info = NULL;
unsigned long flags;
u32 aeqcnt = 0;
if (!sc_aeq->size)
return;
do {
memset(info, 0, sizeof(*info));
ret = dev->aeq_ops->get_next_aeqe(sc_aeq, info);
if (ret)
break;
aeqcnt++;
i40iw_debug(dev, I40IW_DEBUG_AEQ,
"%s ae_id = 0x%x bool qp=%d qp_id = %d\n",
__func__, info->ae_id, info->qp, info->qp_cq_id);
if (info->qp) {
spin_lock_irqsave(&iwdev->qptable_lock, flags);
iwqp = iwdev->qp_table[info->qp_cq_id];
if (!iwqp) {
spin_unlock_irqrestore(&iwdev->qptable_lock, flags);
i40iw_debug(dev, I40IW_DEBUG_AEQ,
"%s qp_id %d is already freed\n",
__func__, info->qp_cq_id);
continue;
}
i40iw_add_ref(&iwqp->ibqp);
spin_unlock_irqrestore(&iwdev->qptable_lock, flags);
qp = &iwqp->sc_qp;
spin_lock_irqsave(&iwqp->lock, flags);
iwqp->hw_tcp_state = info->tcp_state;
iwqp->hw_iwarp_state = info->iwarp_state;
iwqp->last_aeq = info->ae_id;
spin_unlock_irqrestore(&iwqp->lock, flags);
ctx_info = &iwqp->ctx_info;
ctx_info->err_rq_idx_valid = true;
} else {
if (info->ae_id != I40IW_AE_CQ_OPERATION_ERROR)
continue;
}
switch (info->ae_id) {
case I40IW_AE_LLP_FIN_RECEIVED:
if (qp->term_flags)
break;
if (atomic_inc_return(&iwqp->close_timer_started) == 1) {
iwqp->hw_tcp_state = I40IW_TCP_STATE_CLOSE_WAIT;
if ((iwqp->hw_tcp_state == I40IW_TCP_STATE_CLOSE_WAIT) &&
(iwqp->ibqp_state == IB_QPS_RTS)) {
i40iw_next_iw_state(iwqp,
I40IW_QP_STATE_CLOSING, 0, 0, 0);
i40iw_cm_disconn(iwqp);
}
iwqp->cm_id->add_ref(iwqp->cm_id);
i40iw_schedule_cm_timer(iwqp->cm_node,
(struct i40iw_puda_buf *)iwqp,
I40IW_TIMER_TYPE_CLOSE, 1, 0);
}
break;
case I40IW_AE_LLP_CLOSE_COMPLETE:
if (qp->term_flags)
i40iw_terminate_done(qp, 0);
else
i40iw_cm_disconn(iwqp);
break;
case I40IW_AE_BAD_CLOSE:
/* fall through */
case I40IW_AE_RESET_SENT:
i40iw_next_iw_state(iwqp, I40IW_QP_STATE_ERROR, 1, 0, 0);
i40iw_cm_disconn(iwqp);
break;
case I40IW_AE_LLP_CONNECTION_RESET:
if (atomic_read(&iwqp->close_timer_started))
break;
i40iw_cm_disconn(iwqp);
break;
case I40IW_AE_QP_SUSPEND_COMPLETE:
i40iw_qp_suspend_resume(dev, &iwqp->sc_qp, false);
break;
case I40IW_AE_TERMINATE_SENT:
i40iw_terminate_send_fin(qp);
break;
case I40IW_AE_LLP_TERMINATE_RECEIVED:
i40iw_terminate_received(qp, info);
break;
case I40IW_AE_CQ_OPERATION_ERROR:
i40iw_pr_err("Processing an iWARP related AE for CQ misc = 0x%04X\n",
info->ae_id);
cq = (struct i40iw_sc_cq *)(unsigned long)info->compl_ctx;
iwcq = (struct i40iw_cq *)cq->back_cq;
if (iwcq->ibcq.event_handler) {
struct ib_event ibevent;
ibevent.device = iwcq->ibcq.device;
ibevent.event = IB_EVENT_CQ_ERR;
ibevent.element.cq = &iwcq->ibcq;
iwcq->ibcq.event_handler(&ibevent, iwcq->ibcq.cq_context);
}
break;
case I40IW_AE_LLP_DOUBT_REACHABILITY:
break;
case I40IW_AE_PRIV_OPERATION_DENIED:
case I40IW_AE_STAG_ZERO_INVALID:
case I40IW_AE_IB_RREQ_AND_Q1_FULL:
case I40IW_AE_DDP_UBE_INVALID_DDP_VERSION:
case I40IW_AE_DDP_UBE_INVALID_MO:
case I40IW_AE_DDP_UBE_INVALID_QN:
case I40IW_AE_DDP_NO_L_BIT:
case I40IW_AE_RDMAP_ROE_INVALID_RDMAP_VERSION:
case I40IW_AE_RDMAP_ROE_UNEXPECTED_OPCODE:
case I40IW_AE_ROE_INVALID_RDMA_READ_REQUEST:
case I40IW_AE_ROE_INVALID_RDMA_WRITE_OR_READ_RESP:
case I40IW_AE_INVALID_ARP_ENTRY:
case I40IW_AE_INVALID_TCP_OPTION_RCVD:
case I40IW_AE_STALE_ARP_ENTRY:
case I40IW_AE_LLP_RECEIVED_MPA_CRC_ERROR:
case I40IW_AE_LLP_SEGMENT_TOO_SMALL:
case I40IW_AE_LLP_SYN_RECEIVED:
case I40IW_AE_LLP_TOO_MANY_RETRIES:
case I40IW_AE_LCE_QP_CATASTROPHIC:
case I40IW_AE_LCE_FUNCTION_CATASTROPHIC:
case I40IW_AE_LCE_CQ_CATASTROPHIC:
case I40IW_AE_UDA_XMIT_DGRAM_TOO_LONG:
case I40IW_AE_UDA_XMIT_DGRAM_TOO_SHORT:
ctx_info->err_rq_idx_valid = false;
/* fall through */
default:
if (!info->sq && ctx_info->err_rq_idx_valid) {
ctx_info->err_rq_idx = info->wqe_idx;
ctx_info->tcp_info_valid = false;
ctx_info->iwarp_info_valid = false;
ret = dev->iw_priv_qp_ops->qp_setctx(&iwqp->sc_qp,
iwqp->host_ctx.va,
ctx_info);
}
i40iw_terminate_connection(qp, info);
break;
}
if (info->qp)
i40iw_rem_ref(&iwqp->ibqp);
} while (1);
if (aeqcnt)
dev->aeq_ops->repost_aeq_entries(dev, aeqcnt);
}
/**
* i40iw_cqp_manage_abvpt_cmd - send cqp command manage abpvt
* @iwdev: iwarp device
* @accel_local_port: port for apbvt
* @add_port: add or delete port
*/
static enum i40iw_status_code
i40iw_cqp_manage_abvpt_cmd(struct i40iw_device *iwdev,
u16 accel_local_port,
bool add_port)
{
struct i40iw_apbvt_info *info;
struct i40iw_cqp_request *cqp_request;
struct cqp_commands_info *cqp_info;
enum i40iw_status_code status;
cqp_request = i40iw_get_cqp_request(&iwdev->cqp, add_port);
if (!cqp_request)
return I40IW_ERR_NO_MEMORY;
cqp_info = &cqp_request->info;
info = &cqp_info->in.u.manage_apbvt_entry.info;
memset(info, 0, sizeof(*info));
info->add = add_port;
info->port = cpu_to_le16(accel_local_port);
cqp_info->cqp_cmd = OP_MANAGE_APBVT_ENTRY;
cqp_info->post_sq = 1;
cqp_info->in.u.manage_apbvt_entry.cqp = &iwdev->cqp.sc_cqp;
cqp_info->in.u.manage_apbvt_entry.scratch = (uintptr_t)cqp_request;
status = i40iw_handle_cqp_op(iwdev, cqp_request);
if (status)
i40iw_pr_err("CQP-OP Manage APBVT entry fail");
return status;
}
/**
* i40iw_manage_apbvt - add or delete tcp port
* @iwdev: iwarp device
* @accel_local_port: port for apbvt
* @add_port: add or delete port
*/
enum i40iw_status_code i40iw_manage_apbvt(struct i40iw_device *iwdev,
u16 accel_local_port,
bool add_port)
{
struct i40iw_cm_core *cm_core = &iwdev->cm_core;
enum i40iw_status_code status;
unsigned long flags;
bool in_use;
/* apbvt_lock is held across CQP delete APBVT OP (non-waiting) to
* protect against race where add APBVT CQP can race ahead of the delete
* APBVT for same port.
*/
if (add_port) {
spin_lock_irqsave(&cm_core->apbvt_lock, flags);
in_use = __test_and_set_bit(accel_local_port,
cm_core->ports_in_use);
spin_unlock_irqrestore(&cm_core->apbvt_lock, flags);
if (in_use)
return 0;
return i40iw_cqp_manage_abvpt_cmd(iwdev, accel_local_port,
true);
} else {
spin_lock_irqsave(&cm_core->apbvt_lock, flags);
in_use = i40iw_port_in_use(cm_core, accel_local_port);
if (in_use) {
spin_unlock_irqrestore(&cm_core->apbvt_lock, flags);
return 0;
}
__clear_bit(accel_local_port, cm_core->ports_in_use);
status = i40iw_cqp_manage_abvpt_cmd(iwdev, accel_local_port,
false);
spin_unlock_irqrestore(&cm_core->apbvt_lock, flags);
return status;
}
}
/**
* i40iw_manage_arp_cache - manage hw arp cache
* @iwdev: iwarp device
* @mac_addr: mac address ptr
* @ip_addr: ip addr for arp cache
* @action: add, delete or modify
*/
void i40iw_manage_arp_cache(struct i40iw_device *iwdev,
unsigned char *mac_addr,
u32 *ip_addr,
bool ipv4,
u32 action)
{
struct i40iw_add_arp_cache_entry_info *info;
struct i40iw_cqp_request *cqp_request;
struct cqp_commands_info *cqp_info;
int arp_index;
arp_index = i40iw_arp_table(iwdev, ip_addr, ipv4, mac_addr, action);
if (arp_index == -1)
return;
cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false);
if (!cqp_request)
return;
cqp_info = &cqp_request->info;
if (action == I40IW_ARP_ADD) {
cqp_info->cqp_cmd = OP_ADD_ARP_CACHE_ENTRY;
info = &cqp_info->in.u.add_arp_cache_entry.info;
memset(info, 0, sizeof(*info));
info->arp_index = cpu_to_le16((u16)arp_index);
info->permanent = true;
ether_addr_copy(info->mac_addr, mac_addr);
cqp_info->in.u.add_arp_cache_entry.scratch = (uintptr_t)cqp_request;
cqp_info->in.u.add_arp_cache_entry.cqp = &iwdev->cqp.sc_cqp;
} else {
cqp_info->cqp_cmd = OP_DELETE_ARP_CACHE_ENTRY;
cqp_info->in.u.del_arp_cache_entry.scratch = (uintptr_t)cqp_request;
cqp_info->in.u.del_arp_cache_entry.cqp = &iwdev->cqp.sc_cqp;
cqp_info->in.u.del_arp_cache_entry.arp_index = arp_index;
}
cqp_info->in.u.add_arp_cache_entry.cqp = &iwdev->cqp.sc_cqp;
cqp_info->in.u.add_arp_cache_entry.scratch = (uintptr_t)cqp_request;
cqp_info->post_sq = 1;
if (i40iw_handle_cqp_op(iwdev, cqp_request))
i40iw_pr_err("CQP-OP Add/Del Arp Cache entry fail");
}
/**
* i40iw_send_syn_cqp_callback - do syn/ack after qhash
* @cqp_request: qhash cqp completion
* @send_ack: flag send ack
*/
static void i40iw_send_syn_cqp_callback(struct i40iw_cqp_request *cqp_request, u32 send_ack)
{
i40iw_send_syn(cqp_request->param, send_ack);
}
/**
* i40iw_manage_qhash - add or modify qhash
* @iwdev: iwarp device
* @cminfo: cm info for qhash
* @etype: type (syn or quad)
* @mtype: type of qhash
* @cmnode: cmnode associated with connection
* @wait: wait for completion
* @user_pri:user pri of the connection
*/
enum i40iw_status_code i40iw_manage_qhash(struct i40iw_device *iwdev,
struct i40iw_cm_info *cminfo,
enum i40iw_quad_entry_type etype,
enum i40iw_quad_hash_manage_type mtype,
void *cmnode,
bool wait)
{
struct i40iw_qhash_table_info *info;
struct i40iw_sc_dev *dev = &iwdev->sc_dev;
struct i40iw_sc_vsi *vsi = &iwdev->vsi;
enum i40iw_status_code status;
struct i40iw_cqp *iwcqp = &iwdev->cqp;
struct i40iw_cqp_request *cqp_request;
struct cqp_commands_info *cqp_info;
cqp_request = i40iw_get_cqp_request(iwcqp, wait);
if (!cqp_request)
return I40IW_ERR_NO_MEMORY;
cqp_info = &cqp_request->info;
info = &cqp_info->in.u.manage_qhash_table_entry.info;
memset(info, 0, sizeof(*info));
info->vsi = &iwdev->vsi;
info->manage = mtype;
info->entry_type = etype;
if (cminfo->vlan_id != 0xFFFF) {
info->vlan_valid = true;
info->vlan_id = cpu_to_le16(cminfo->vlan_id);
} else {
info->vlan_valid = false;
}
info->ipv4_valid = cminfo->ipv4;
info->user_pri = cminfo->user_pri;
ether_addr_copy(info->mac_addr, iwdev->netdev->dev_addr);
info->qp_num = cpu_to_le32(vsi->ilq->qp_id);
info->dest_port = cpu_to_le16(cminfo->loc_port);
info->dest_ip[0] = cpu_to_le32(cminfo->loc_addr[0]);
info->dest_ip[1] = cpu_to_le32(cminfo->loc_addr[1]);
info->dest_ip[2] = cpu_to_le32(cminfo->loc_addr[2]);
info->dest_ip[3] = cpu_to_le32(cminfo->loc_addr[3]);
if (etype == I40IW_QHASH_TYPE_TCP_ESTABLISHED) {
info->src_port = cpu_to_le16(cminfo->rem_port);
info->src_ip[0] = cpu_to_le32(cminfo->rem_addr[0]);
info->src_ip[1] = cpu_to_le32(cminfo->rem_addr[1]);
info->src_ip[2] = cpu_to_le32(cminfo->rem_addr[2]);
info->src_ip[3] = cpu_to_le32(cminfo->rem_addr[3]);
}
if (cmnode) {
cqp_request->callback_fcn = i40iw_send_syn_cqp_callback;
cqp_request->param = (void *)cmnode;
}
if (info->ipv4_valid)
i40iw_debug(dev, I40IW_DEBUG_CM,
"%s:%s IP=%pI4, port=%d, mac=%pM, vlan_id=%d\n",
__func__, (!mtype) ? "DELETE" : "ADD",
info->dest_ip,
info->dest_port, info->mac_addr, cminfo->vlan_id);
else
i40iw_debug(dev, I40IW_DEBUG_CM,
"%s:%s IP=%pI6, port=%d, mac=%pM, vlan_id=%d\n",
__func__, (!mtype) ? "DELETE" : "ADD",
info->dest_ip,
info->dest_port, info->mac_addr, cminfo->vlan_id);
cqp_info->in.u.manage_qhash_table_entry.cqp = &iwdev->cqp.sc_cqp;
cqp_info->in.u.manage_qhash_table_entry.scratch = (uintptr_t)cqp_request;
cqp_info->cqp_cmd = OP_MANAGE_QHASH_TABLE_ENTRY;
cqp_info->post_sq = 1;
status = i40iw_handle_cqp_op(iwdev, cqp_request);
if (status)
i40iw_pr_err("CQP-OP Manage Qhash Entry fail");
return status;
}
/**
* i40iw_hw_flush_wqes - flush qp's wqe
* @iwdev: iwarp device
* @qp: hardware control qp
* @info: info for flush
* @wait: flag wait for completion
*/
enum i40iw_status_code i40iw_hw_flush_wqes(struct i40iw_device *iwdev,
struct i40iw_sc_qp *qp,
struct i40iw_qp_flush_info *info,
bool wait)
{
enum i40iw_status_code status;
struct i40iw_qp_flush_info *hw_info;
struct i40iw_cqp_request *cqp_request;
struct cqp_commands_info *cqp_info;
struct i40iw_qp *iwqp = (struct i40iw_qp *)qp->back_qp;
cqp_request = i40iw_get_cqp_request(&iwdev->cqp, wait);
if (!cqp_request)
return I40IW_ERR_NO_MEMORY;
cqp_info = &cqp_request->info;
hw_info = &cqp_request->info.in.u.qp_flush_wqes.info;
memcpy(hw_info, info, sizeof(*hw_info));
cqp_info->cqp_cmd = OP_QP_FLUSH_WQES;
cqp_info->post_sq = 1;
cqp_info->in.u.qp_flush_wqes.qp = qp;
cqp_info->in.u.qp_flush_wqes.scratch = (uintptr_t)cqp_request;
status = i40iw_handle_cqp_op(iwdev, cqp_request);
if (status) {
i40iw_pr_err("CQP-OP Flush WQE's fail");
complete(&iwqp->sq_drained);
complete(&iwqp->rq_drained);
return status;
}
if (!cqp_request->compl_info.maj_err_code) {
switch (cqp_request->compl_info.min_err_code) {
case I40IW_CQP_COMPL_RQ_WQE_FLUSHED:
complete(&iwqp->sq_drained);
break;
case I40IW_CQP_COMPL_SQ_WQE_FLUSHED:
complete(&iwqp->rq_drained);
break;
case I40IW_CQP_COMPL_RQ_SQ_WQE_FLUSHED:
break;
default:
complete(&iwqp->sq_drained);
complete(&iwqp->rq_drained);
break;
}
}
return 0;
}
/**
* i40iw_gen_ae - generate AE
* @iwdev: iwarp device
* @qp: qp associated with AE
* @info: info for ae
* @wait: wait for completion
*/
void i40iw_gen_ae(struct i40iw_device *iwdev,
struct i40iw_sc_qp *qp,
struct i40iw_gen_ae_info *info,
bool wait)
{
struct i40iw_gen_ae_info *ae_info;
struct i40iw_cqp_request *cqp_request;
struct cqp_commands_info *cqp_info;
cqp_request = i40iw_get_cqp_request(&iwdev->cqp, wait);
if (!cqp_request)
return;
cqp_info = &cqp_request->info;
ae_info = &cqp_request->info.in.u.gen_ae.info;
memcpy(ae_info, info, sizeof(*ae_info));
cqp_info->cqp_cmd = OP_GEN_AE;
cqp_info->post_sq = 1;
cqp_info->in.u.gen_ae.qp = qp;
cqp_info->in.u.gen_ae.scratch = (uintptr_t)cqp_request;
if (i40iw_handle_cqp_op(iwdev, cqp_request))
i40iw_pr_err("CQP OP failed attempting to generate ae_code=0x%x\n",
info->ae_code);
}
/**
* i40iw_hw_manage_vf_pble_bp - manage vf pbles
* @iwdev: iwarp device
* @info: info for managing pble
* @wait: flag wait for completion
*/
enum i40iw_status_code i40iw_hw_manage_vf_pble_bp(struct i40iw_device *iwdev,
struct i40iw_manage_vf_pble_info *info,
bool wait)
{
enum i40iw_status_code status;
struct i40iw_manage_vf_pble_info *hw_info;
struct i40iw_cqp_request *cqp_request;
struct cqp_commands_info *cqp_info;
if ((iwdev->init_state < CCQ_CREATED) && wait)
wait = false;
cqp_request = i40iw_get_cqp_request(&iwdev->cqp, wait);
if (!cqp_request)
return I40IW_ERR_NO_MEMORY;
cqp_info = &cqp_request->info;
hw_info = &cqp_request->info.in.u.manage_vf_pble_bp.info;
memcpy(hw_info, info, sizeof(*hw_info));
cqp_info->cqp_cmd = OP_MANAGE_VF_PBLE_BP;
cqp_info->post_sq = 1;
cqp_info->in.u.manage_vf_pble_bp.cqp = &iwdev->cqp.sc_cqp;
cqp_info->in.u.manage_vf_pble_bp.scratch = (uintptr_t)cqp_request;
status = i40iw_handle_cqp_op(iwdev, cqp_request);
if (status)
i40iw_pr_err("CQP-OP Manage VF pble_bp fail");
return status;
}
/**
* i40iw_get_ib_wc - return change flush code to IB's
* @opcode: iwarp flush code
*/
static enum ib_wc_status i40iw_get_ib_wc(enum i40iw_flush_opcode opcode)
{
switch (opcode) {
case FLUSH_PROT_ERR:
return IB_WC_LOC_PROT_ERR;
case FLUSH_REM_ACCESS_ERR:
return IB_WC_REM_ACCESS_ERR;
case FLUSH_LOC_QP_OP_ERR:
return IB_WC_LOC_QP_OP_ERR;
case FLUSH_REM_OP_ERR:
return IB_WC_REM_OP_ERR;
case FLUSH_LOC_LEN_ERR:
return IB_WC_LOC_LEN_ERR;
case FLUSH_GENERAL_ERR:
return IB_WC_GENERAL_ERR;
case FLUSH_FATAL_ERR:
default:
return IB_WC_FATAL_ERR;
}
}
/**
* i40iw_set_flush_info - set flush info
* @pinfo: set flush info
* @min: minor err
* @maj: major err
* @opcode: flush error code
*/
static void i40iw_set_flush_info(struct i40iw_qp_flush_info *pinfo,
u16 *min,
u16 *maj,
enum i40iw_flush_opcode opcode)
{
*min = (u16)i40iw_get_ib_wc(opcode);
*maj = CQE_MAJOR_DRV;
pinfo->userflushcode = true;
}
/**
* i40iw_flush_wqes - flush wqe for qp
* @iwdev: iwarp device
* @iwqp: qp to flush wqes
*/
void i40iw_flush_wqes(struct i40iw_device *iwdev, struct i40iw_qp *iwqp)
{
struct i40iw_qp_flush_info info;
struct i40iw_qp_flush_info *pinfo = &info;
struct i40iw_sc_qp *qp = &iwqp->sc_qp;
memset(pinfo, 0, sizeof(*pinfo));
info.sq = true;
info.rq = true;
if (qp->term_flags) {
i40iw_set_flush_info(pinfo, &pinfo->sq_minor_code,
&pinfo->sq_major_code, qp->flush_code);
i40iw_set_flush_info(pinfo, &pinfo->rq_minor_code,
&pinfo->rq_major_code, qp->flush_code);
}
(void)i40iw_hw_flush_wqes(iwdev, &iwqp->sc_qp, &info, true);
}
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