mirror of https://gitee.com/openkylin/linux.git
720 lines
19 KiB
C
720 lines
19 KiB
C
/*
|
|
* QLogic Fibre Channel HBA Driver
|
|
* Copyright (c) 2003-2017 QLogic Corporation
|
|
*
|
|
* See LICENSE.qla2xxx for copyright and licensing details.
|
|
*/
|
|
#include "qla_nvme.h"
|
|
#include <linux/scatterlist.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/nvme.h>
|
|
#include <linux/nvme-fc.h>
|
|
|
|
static struct nvme_fc_port_template qla_nvme_fc_transport;
|
|
|
|
static void qla_nvme_unregister_remote_port(struct work_struct *);
|
|
|
|
int qla_nvme_register_remote(struct scsi_qla_host *vha, struct fc_port *fcport)
|
|
{
|
|
struct qla_nvme_rport *rport;
|
|
struct nvme_fc_port_info req;
|
|
int ret;
|
|
|
|
if (!IS_ENABLED(CONFIG_NVME_FC))
|
|
return 0;
|
|
|
|
if (!vha->flags.nvme_enabled) {
|
|
ql_log(ql_log_info, vha, 0x2100,
|
|
"%s: Not registering target since Host NVME is not enabled\n",
|
|
__func__);
|
|
return 0;
|
|
}
|
|
|
|
if (!vha->nvme_local_port && qla_nvme_register_hba(vha))
|
|
return 0;
|
|
|
|
if (!(fcport->nvme_prli_service_param &
|
|
(NVME_PRLI_SP_TARGET | NVME_PRLI_SP_DISCOVERY)) ||
|
|
(fcport->nvme_flag & NVME_FLAG_REGISTERED))
|
|
return 0;
|
|
|
|
INIT_WORK(&fcport->nvme_del_work, qla_nvme_unregister_remote_port);
|
|
fcport->nvme_flag &= ~NVME_FLAG_RESETTING;
|
|
|
|
memset(&req, 0, sizeof(struct nvme_fc_port_info));
|
|
req.port_name = wwn_to_u64(fcport->port_name);
|
|
req.node_name = wwn_to_u64(fcport->node_name);
|
|
req.port_role = 0;
|
|
req.dev_loss_tmo = NVME_FC_DEV_LOSS_TMO;
|
|
|
|
if (fcport->nvme_prli_service_param & NVME_PRLI_SP_INITIATOR)
|
|
req.port_role = FC_PORT_ROLE_NVME_INITIATOR;
|
|
|
|
if (fcport->nvme_prli_service_param & NVME_PRLI_SP_TARGET)
|
|
req.port_role |= FC_PORT_ROLE_NVME_TARGET;
|
|
|
|
if (fcport->nvme_prli_service_param & NVME_PRLI_SP_DISCOVERY)
|
|
req.port_role |= FC_PORT_ROLE_NVME_DISCOVERY;
|
|
|
|
req.port_id = fcport->d_id.b24;
|
|
|
|
ql_log(ql_log_info, vha, 0x2102,
|
|
"%s: traddr=nn-0x%016llx:pn-0x%016llx PortID:%06x\n",
|
|
__func__, req.node_name, req.port_name,
|
|
req.port_id);
|
|
|
|
ret = nvme_fc_register_remoteport(vha->nvme_local_port, &req,
|
|
&fcport->nvme_remote_port);
|
|
if (ret) {
|
|
ql_log(ql_log_warn, vha, 0x212e,
|
|
"Failed to register remote port. Transport returned %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
rport = fcport->nvme_remote_port->private;
|
|
rport->fcport = fcport;
|
|
list_add_tail(&rport->list, &vha->nvme_rport_list);
|
|
|
|
fcport->nvme_flag |= NVME_FLAG_REGISTERED;
|
|
return 0;
|
|
}
|
|
|
|
/* Allocate a queue for NVMe traffic */
|
|
static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport,
|
|
unsigned int qidx, u16 qsize, void **handle)
|
|
{
|
|
struct scsi_qla_host *vha;
|
|
struct qla_hw_data *ha;
|
|
struct qla_qpair *qpair;
|
|
|
|
if (!qidx)
|
|
qidx++;
|
|
|
|
vha = (struct scsi_qla_host *)lport->private;
|
|
ha = vha->hw;
|
|
|
|
ql_log(ql_log_info, vha, 0x2104,
|
|
"%s: handle %p, idx =%d, qsize %d\n",
|
|
__func__, handle, qidx, qsize);
|
|
|
|
if (qidx > qla_nvme_fc_transport.max_hw_queues) {
|
|
ql_log(ql_log_warn, vha, 0x212f,
|
|
"%s: Illegal qidx=%d. Max=%d\n",
|
|
__func__, qidx, qla_nvme_fc_transport.max_hw_queues);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (ha->queue_pair_map[qidx]) {
|
|
*handle = ha->queue_pair_map[qidx];
|
|
ql_log(ql_log_info, vha, 0x2121,
|
|
"Returning existing qpair of %p for idx=%x\n",
|
|
*handle, qidx);
|
|
return 0;
|
|
}
|
|
|
|
qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true);
|
|
if (qpair == NULL) {
|
|
ql_log(ql_log_warn, vha, 0x2122,
|
|
"Failed to allocate qpair\n");
|
|
return -EINVAL;
|
|
}
|
|
*handle = qpair;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void qla_nvme_sp_ls_done(void *ptr, int res)
|
|
{
|
|
srb_t *sp = ptr;
|
|
struct srb_iocb *nvme;
|
|
struct nvmefc_ls_req *fd;
|
|
struct nvme_private *priv;
|
|
|
|
if (atomic_read(&sp->ref_count) == 0) {
|
|
ql_log(ql_log_warn, sp->fcport->vha, 0x2123,
|
|
"SP reference-count to ZERO on LS_done -- sp=%p.\n", sp);
|
|
return;
|
|
}
|
|
|
|
if (!atomic_dec_and_test(&sp->ref_count))
|
|
return;
|
|
|
|
if (res)
|
|
res = -EINVAL;
|
|
|
|
nvme = &sp->u.iocb_cmd;
|
|
fd = nvme->u.nvme.desc;
|
|
priv = fd->private;
|
|
priv->comp_status = res;
|
|
schedule_work(&priv->ls_work);
|
|
/* work schedule doesn't need the sp */
|
|
qla2x00_rel_sp(sp);
|
|
}
|
|
|
|
static void qla_nvme_sp_done(void *ptr, int res)
|
|
{
|
|
srb_t *sp = ptr;
|
|
struct srb_iocb *nvme;
|
|
struct nvmefc_fcp_req *fd;
|
|
|
|
nvme = &sp->u.iocb_cmd;
|
|
fd = nvme->u.nvme.desc;
|
|
|
|
if (!atomic_dec_and_test(&sp->ref_count))
|
|
return;
|
|
|
|
if (res == QLA_SUCCESS)
|
|
fd->status = 0;
|
|
else
|
|
fd->status = NVME_SC_INTERNAL;
|
|
|
|
fd->rcv_rsplen = nvme->u.nvme.rsp_pyld_len;
|
|
fd->done(fd);
|
|
qla2xxx_rel_qpair_sp(sp->qpair, sp);
|
|
|
|
return;
|
|
}
|
|
|
|
static void qla_nvme_abort_work(struct work_struct *work)
|
|
{
|
|
struct nvme_private *priv =
|
|
container_of(work, struct nvme_private, abort_work);
|
|
srb_t *sp = priv->sp;
|
|
fc_port_t *fcport = sp->fcport;
|
|
struct qla_hw_data *ha = fcport->vha->hw;
|
|
int rval;
|
|
|
|
rval = ha->isp_ops->abort_command(sp);
|
|
|
|
ql_dbg(ql_dbg_io, fcport->vha, 0x212b,
|
|
"%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n",
|
|
__func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted",
|
|
sp, sp->handle, fcport, rval);
|
|
}
|
|
|
|
static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport,
|
|
struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
|
|
{
|
|
struct nvme_private *priv = fd->private;
|
|
|
|
INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
|
|
schedule_work(&priv->abort_work);
|
|
}
|
|
|
|
static void qla_nvme_ls_complete(struct work_struct *work)
|
|
{
|
|
struct nvme_private *priv =
|
|
container_of(work, struct nvme_private, ls_work);
|
|
struct nvmefc_ls_req *fd = priv->fd;
|
|
|
|
fd->done(fd, priv->comp_status);
|
|
}
|
|
|
|
static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
|
|
struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
|
|
{
|
|
struct qla_nvme_rport *qla_rport = rport->private;
|
|
fc_port_t *fcport = qla_rport->fcport;
|
|
struct srb_iocb *nvme;
|
|
struct nvme_private *priv = fd->private;
|
|
struct scsi_qla_host *vha;
|
|
int rval = QLA_FUNCTION_FAILED;
|
|
struct qla_hw_data *ha;
|
|
srb_t *sp;
|
|
|
|
vha = fcport->vha;
|
|
ha = vha->hw;
|
|
/* Alloc SRB structure */
|
|
sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
|
|
if (!sp)
|
|
return rval;
|
|
|
|
sp->type = SRB_NVME_LS;
|
|
sp->name = "nvme_ls";
|
|
sp->done = qla_nvme_sp_ls_done;
|
|
atomic_set(&sp->ref_count, 1);
|
|
nvme = &sp->u.iocb_cmd;
|
|
priv->sp = sp;
|
|
priv->fd = fd;
|
|
INIT_WORK(&priv->ls_work, qla_nvme_ls_complete);
|
|
nvme->u.nvme.desc = fd;
|
|
nvme->u.nvme.dir = 0;
|
|
nvme->u.nvme.dl = 0;
|
|
nvme->u.nvme.cmd_len = fd->rqstlen;
|
|
nvme->u.nvme.rsp_len = fd->rsplen;
|
|
nvme->u.nvme.rsp_dma = fd->rspdma;
|
|
nvme->u.nvme.timeout_sec = fd->timeout;
|
|
nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr,
|
|
fd->rqstlen, DMA_TO_DEVICE);
|
|
dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma,
|
|
fd->rqstlen, DMA_TO_DEVICE);
|
|
|
|
rval = qla2x00_start_sp(sp);
|
|
if (rval != QLA_SUCCESS) {
|
|
ql_log(ql_log_warn, vha, 0x700e,
|
|
"qla2x00_start_sp failed = %d\n", rval);
|
|
atomic_dec(&sp->ref_count);
|
|
wake_up(&sp->nvme_ls_waitq);
|
|
return rval;
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport,
|
|
struct nvme_fc_remote_port *rport, void *hw_queue_handle,
|
|
struct nvmefc_fcp_req *fd)
|
|
{
|
|
struct nvme_private *priv = fd->private;
|
|
|
|
INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
|
|
schedule_work(&priv->abort_work);
|
|
}
|
|
|
|
static void qla_nvme_poll(struct nvme_fc_local_port *lport, void *hw_queue_handle)
|
|
{
|
|
struct qla_qpair *qpair = hw_queue_handle;
|
|
unsigned long flags;
|
|
struct scsi_qla_host *vha = lport->private;
|
|
|
|
spin_lock_irqsave(&qpair->qp_lock, flags);
|
|
qla24xx_process_response_queue(vha, qpair->rsp);
|
|
spin_unlock_irqrestore(&qpair->qp_lock, flags);
|
|
}
|
|
|
|
static inline int qla2x00_start_nvme_mq(srb_t *sp)
|
|
{
|
|
unsigned long flags;
|
|
uint32_t *clr_ptr;
|
|
uint32_t index;
|
|
uint32_t handle;
|
|
struct cmd_nvme *cmd_pkt;
|
|
uint16_t cnt, i;
|
|
uint16_t req_cnt;
|
|
uint16_t tot_dsds;
|
|
uint16_t avail_dsds;
|
|
uint32_t *cur_dsd;
|
|
struct req_que *req = NULL;
|
|
struct scsi_qla_host *vha = sp->fcport->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct qla_qpair *qpair = sp->qpair;
|
|
struct srb_iocb *nvme = &sp->u.iocb_cmd;
|
|
struct scatterlist *sgl, *sg;
|
|
struct nvmefc_fcp_req *fd = nvme->u.nvme.desc;
|
|
uint32_t rval = QLA_SUCCESS;
|
|
|
|
/* Setup qpair pointers */
|
|
req = qpair->req;
|
|
tot_dsds = fd->sg_cnt;
|
|
|
|
/* Acquire qpair specific lock */
|
|
spin_lock_irqsave(&qpair->qp_lock, flags);
|
|
|
|
/* Check for room in outstanding command list. */
|
|
handle = req->current_outstanding_cmd;
|
|
for (index = 1; index < req->num_outstanding_cmds; index++) {
|
|
handle++;
|
|
if (handle == req->num_outstanding_cmds)
|
|
handle = 1;
|
|
if (!req->outstanding_cmds[handle])
|
|
break;
|
|
}
|
|
|
|
if (index == req->num_outstanding_cmds) {
|
|
rval = -EBUSY;
|
|
goto queuing_error;
|
|
}
|
|
req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
|
|
if (req->cnt < (req_cnt + 2)) {
|
|
cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
|
|
RD_REG_DWORD_RELAXED(req->req_q_out);
|
|
|
|
if (req->ring_index < cnt)
|
|
req->cnt = cnt - req->ring_index;
|
|
else
|
|
req->cnt = req->length - (req->ring_index - cnt);
|
|
|
|
if (req->cnt < (req_cnt + 2)){
|
|
rval = -EBUSY;
|
|
goto queuing_error;
|
|
}
|
|
}
|
|
|
|
if (unlikely(!fd->sqid)) {
|
|
struct nvme_fc_cmd_iu *cmd = fd->cmdaddr;
|
|
if (cmd->sqe.common.opcode == nvme_admin_async_event) {
|
|
nvme->u.nvme.aen_op = 1;
|
|
atomic_inc(&ha->nvme_active_aen_cnt);
|
|
}
|
|
}
|
|
|
|
/* Build command packet. */
|
|
req->current_outstanding_cmd = handle;
|
|
req->outstanding_cmds[handle] = sp;
|
|
sp->handle = handle;
|
|
req->cnt -= req_cnt;
|
|
|
|
cmd_pkt = (struct cmd_nvme *)req->ring_ptr;
|
|
cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
|
|
|
|
/* Zero out remaining portion of packet. */
|
|
clr_ptr = (uint32_t *)cmd_pkt + 2;
|
|
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
|
|
|
|
cmd_pkt->entry_status = 0;
|
|
|
|
/* Update entry type to indicate Command NVME IOCB */
|
|
cmd_pkt->entry_type = COMMAND_NVME;
|
|
|
|
/* No data transfer how do we check buffer len == 0?? */
|
|
if (fd->io_dir == NVMEFC_FCP_READ) {
|
|
cmd_pkt->control_flags =
|
|
cpu_to_le16(CF_READ_DATA | CF_NVME_ENABLE);
|
|
vha->qla_stats.input_bytes += fd->payload_length;
|
|
vha->qla_stats.input_requests++;
|
|
} else if (fd->io_dir == NVMEFC_FCP_WRITE) {
|
|
cmd_pkt->control_flags =
|
|
cpu_to_le16(CF_WRITE_DATA | CF_NVME_ENABLE);
|
|
vha->qla_stats.output_bytes += fd->payload_length;
|
|
vha->qla_stats.output_requests++;
|
|
} else if (fd->io_dir == 0) {
|
|
cmd_pkt->control_flags = cpu_to_le16(CF_NVME_ENABLE);
|
|
}
|
|
|
|
/* Set NPORT-ID */
|
|
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
|
|
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
|
|
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
|
|
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
|
|
cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
|
|
|
|
/* NVME RSP IU */
|
|
cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen);
|
|
cmd_pkt->nvme_rsp_dseg_address[0] = cpu_to_le32(LSD(fd->rspdma));
|
|
cmd_pkt->nvme_rsp_dseg_address[1] = cpu_to_le32(MSD(fd->rspdma));
|
|
|
|
/* NVME CNMD IU */
|
|
cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen);
|
|
cmd_pkt->nvme_cmnd_dseg_address[0] = cpu_to_le32(LSD(fd->cmddma));
|
|
cmd_pkt->nvme_cmnd_dseg_address[1] = cpu_to_le32(MSD(fd->cmddma));
|
|
|
|
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
|
|
cmd_pkt->byte_count = cpu_to_le32(fd->payload_length);
|
|
|
|
/* One DSD is available in the Command Type NVME IOCB */
|
|
avail_dsds = 1;
|
|
cur_dsd = (uint32_t *)&cmd_pkt->nvme_data_dseg_address[0];
|
|
sgl = fd->first_sgl;
|
|
|
|
/* Load data segments */
|
|
for_each_sg(sgl, sg, tot_dsds, i) {
|
|
dma_addr_t sle_dma;
|
|
cont_a64_entry_t *cont_pkt;
|
|
|
|
/* Allocate additional continuation packets? */
|
|
if (avail_dsds == 0) {
|
|
/*
|
|
* Five DSDs are available in the Continuation
|
|
* Type 1 IOCB.
|
|
*/
|
|
|
|
/* Adjust ring index */
|
|
req->ring_index++;
|
|
if (req->ring_index == req->length) {
|
|
req->ring_index = 0;
|
|
req->ring_ptr = req->ring;
|
|
} else {
|
|
req->ring_ptr++;
|
|
}
|
|
cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
|
|
*((uint32_t *)(&cont_pkt->entry_type)) =
|
|
cpu_to_le32(CONTINUE_A64_TYPE);
|
|
|
|
cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
|
|
avail_dsds = 5;
|
|
}
|
|
|
|
sle_dma = sg_dma_address(sg);
|
|
*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
|
|
avail_dsds--;
|
|
}
|
|
|
|
/* Set total entry count. */
|
|
cmd_pkt->entry_count = (uint8_t)req_cnt;
|
|
wmb();
|
|
|
|
/* Adjust ring index. */
|
|
req->ring_index++;
|
|
if (req->ring_index == req->length) {
|
|
req->ring_index = 0;
|
|
req->ring_ptr = req->ring;
|
|
} else {
|
|
req->ring_ptr++;
|
|
}
|
|
|
|
/* Set chip new ring index. */
|
|
WRT_REG_DWORD(req->req_q_in, req->ring_index);
|
|
|
|
queuing_error:
|
|
spin_unlock_irqrestore(&qpair->qp_lock, flags);
|
|
return rval;
|
|
}
|
|
|
|
/* Post a command */
|
|
static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
|
|
struct nvme_fc_remote_port *rport, void *hw_queue_handle,
|
|
struct nvmefc_fcp_req *fd)
|
|
{
|
|
fc_port_t *fcport;
|
|
struct srb_iocb *nvme;
|
|
struct scsi_qla_host *vha;
|
|
int rval = -ENODEV;
|
|
srb_t *sp;
|
|
struct qla_qpair *qpair = hw_queue_handle;
|
|
struct nvme_private *priv;
|
|
struct qla_nvme_rport *qla_rport = rport->private;
|
|
|
|
if (!fd || !qpair) {
|
|
ql_log(ql_log_warn, NULL, 0x2134,
|
|
"NO NVMe request or Queue Handle\n");
|
|
return rval;
|
|
}
|
|
|
|
priv = fd->private;
|
|
fcport = qla_rport->fcport;
|
|
if (!fcport) {
|
|
ql_log(ql_log_warn, NULL, 0x210e, "No fcport ptr\n");
|
|
return rval;
|
|
}
|
|
|
|
vha = fcport->vha;
|
|
|
|
if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
|
|
return rval;
|
|
|
|
/*
|
|
* If we know the dev is going away while the transport is still sending
|
|
* IO's return busy back to stall the IO Q. This happens when the
|
|
* link goes away and fw hasn't notified us yet, but IO's are being
|
|
* returned. If the dev comes back quickly we won't exhaust the IO
|
|
* retry count at the core.
|
|
*/
|
|
if (fcport->nvme_flag & NVME_FLAG_RESETTING)
|
|
return -EBUSY;
|
|
|
|
/* Alloc SRB structure */
|
|
sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC);
|
|
if (!sp)
|
|
return -EBUSY;
|
|
|
|
atomic_set(&sp->ref_count, 1);
|
|
init_waitqueue_head(&sp->nvme_ls_waitq);
|
|
priv->sp = sp;
|
|
sp->type = SRB_NVME_CMD;
|
|
sp->name = "nvme_cmd";
|
|
sp->done = qla_nvme_sp_done;
|
|
sp->qpair = qpair;
|
|
nvme = &sp->u.iocb_cmd;
|
|
nvme->u.nvme.desc = fd;
|
|
|
|
rval = qla2x00_start_nvme_mq(sp);
|
|
if (rval != QLA_SUCCESS) {
|
|
ql_log(ql_log_warn, vha, 0x212d,
|
|
"qla2x00_start_nvme_mq failed = %d\n", rval);
|
|
atomic_dec(&sp->ref_count);
|
|
wake_up(&sp->nvme_ls_waitq);
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport)
|
|
{
|
|
struct scsi_qla_host *vha = lport->private;
|
|
|
|
ql_log(ql_log_info, vha, 0x210f,
|
|
"localport delete of %p completed.\n", vha->nvme_local_port);
|
|
vha->nvme_local_port = NULL;
|
|
complete(&vha->nvme_del_done);
|
|
}
|
|
|
|
static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport)
|
|
{
|
|
fc_port_t *fcport;
|
|
struct qla_nvme_rport *qla_rport = rport->private, *trport;
|
|
|
|
fcport = qla_rport->fcport;
|
|
fcport->nvme_remote_port = NULL;
|
|
fcport->nvme_flag &= ~NVME_FLAG_REGISTERED;
|
|
|
|
list_for_each_entry_safe(qla_rport, trport,
|
|
&fcport->vha->nvme_rport_list, list) {
|
|
if (qla_rport->fcport == fcport) {
|
|
list_del(&qla_rport->list);
|
|
break;
|
|
}
|
|
}
|
|
complete(&fcport->nvme_del_done);
|
|
|
|
if (!test_bit(UNLOADING, &fcport->vha->dpc_flags)) {
|
|
INIT_WORK(&fcport->free_work, qlt_free_session_done);
|
|
schedule_work(&fcport->free_work);
|
|
}
|
|
|
|
fcport->nvme_flag &= ~(NVME_FLAG_REGISTERED | NVME_FLAG_DELETING);
|
|
ql_log(ql_log_info, fcport->vha, 0x2110,
|
|
"remoteport_delete of %p completed.\n", fcport);
|
|
}
|
|
|
|
static struct nvme_fc_port_template qla_nvme_fc_transport = {
|
|
.localport_delete = qla_nvme_localport_delete,
|
|
.remoteport_delete = qla_nvme_remoteport_delete,
|
|
.create_queue = qla_nvme_alloc_queue,
|
|
.delete_queue = NULL,
|
|
.ls_req = qla_nvme_ls_req,
|
|
.ls_abort = qla_nvme_ls_abort,
|
|
.fcp_io = qla_nvme_post_cmd,
|
|
.fcp_abort = qla_nvme_fcp_abort,
|
|
.poll_queue = qla_nvme_poll,
|
|
.max_hw_queues = 8,
|
|
.max_sgl_segments = 128,
|
|
.max_dif_sgl_segments = 64,
|
|
.dma_boundary = 0xFFFFFFFF,
|
|
.local_priv_sz = 8,
|
|
.remote_priv_sz = sizeof(struct qla_nvme_rport),
|
|
.lsrqst_priv_sz = sizeof(struct nvme_private),
|
|
.fcprqst_priv_sz = sizeof(struct nvme_private),
|
|
};
|
|
|
|
#define NVME_ABORT_POLLING_PERIOD 2
|
|
static int qla_nvme_wait_on_command(srb_t *sp)
|
|
{
|
|
int ret = QLA_SUCCESS;
|
|
|
|
wait_event_timeout(sp->nvme_ls_waitq, (atomic_read(&sp->ref_count) > 1),
|
|
NVME_ABORT_POLLING_PERIOD*HZ);
|
|
|
|
if (atomic_read(&sp->ref_count) > 1)
|
|
ret = QLA_FUNCTION_FAILED;
|
|
|
|
return ret;
|
|
}
|
|
|
|
void qla_nvme_abort(struct qla_hw_data *ha, struct srb *sp, int res)
|
|
{
|
|
int rval;
|
|
|
|
if (ha->flags.fw_started) {
|
|
rval = ha->isp_ops->abort_command(sp);
|
|
if (!rval && !qla_nvme_wait_on_command(sp))
|
|
ql_log(ql_log_warn, NULL, 0x2112,
|
|
"timed out waiting on sp=%p\n", sp);
|
|
} else {
|
|
sp->done(sp, res);
|
|
}
|
|
}
|
|
|
|
static void qla_nvme_unregister_remote_port(struct work_struct *work)
|
|
{
|
|
struct fc_port *fcport = container_of(work, struct fc_port,
|
|
nvme_del_work);
|
|
struct qla_nvme_rport *qla_rport, *trport;
|
|
|
|
if (!IS_ENABLED(CONFIG_NVME_FC))
|
|
return;
|
|
|
|
ql_log(ql_log_warn, NULL, 0x2112,
|
|
"%s: unregister remoteport on %p\n",__func__, fcport);
|
|
|
|
list_for_each_entry_safe(qla_rport, trport,
|
|
&fcport->vha->nvme_rport_list, list) {
|
|
if (qla_rport->fcport == fcport) {
|
|
ql_log(ql_log_info, fcport->vha, 0x2113,
|
|
"%s: fcport=%p\n", __func__, fcport);
|
|
init_completion(&fcport->nvme_del_done);
|
|
nvme_fc_unregister_remoteport(
|
|
fcport->nvme_remote_port);
|
|
wait_for_completion(&fcport->nvme_del_done);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void qla_nvme_delete(struct scsi_qla_host *vha)
|
|
{
|
|
struct qla_nvme_rport *qla_rport, *trport;
|
|
fc_port_t *fcport;
|
|
int nv_ret;
|
|
|
|
if (!IS_ENABLED(CONFIG_NVME_FC))
|
|
return;
|
|
|
|
list_for_each_entry_safe(qla_rport, trport,
|
|
&vha->nvme_rport_list, list) {
|
|
fcport = qla_rport->fcport;
|
|
|
|
ql_log(ql_log_info, fcport->vha, 0x2114, "%s: fcport=%p\n",
|
|
__func__, fcport);
|
|
|
|
nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0);
|
|
}
|
|
|
|
if (vha->nvme_local_port) {
|
|
init_completion(&vha->nvme_del_done);
|
|
ql_log(ql_log_info, vha, 0x2116,
|
|
"unregister localport=%p\n",
|
|
vha->nvme_local_port);
|
|
nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port);
|
|
if (nv_ret)
|
|
ql_log(ql_log_info, vha, 0x2115,
|
|
"Unregister of localport failed\n");
|
|
else
|
|
wait_for_completion(&vha->nvme_del_done);
|
|
}
|
|
}
|
|
|
|
int qla_nvme_register_hba(struct scsi_qla_host *vha)
|
|
{
|
|
struct nvme_fc_port_template *tmpl;
|
|
struct qla_hw_data *ha;
|
|
struct nvme_fc_port_info pinfo;
|
|
int ret = EINVAL;
|
|
|
|
if (!IS_ENABLED(CONFIG_NVME_FC))
|
|
return ret;
|
|
|
|
ha = vha->hw;
|
|
tmpl = &qla_nvme_fc_transport;
|
|
|
|
WARN_ON(vha->nvme_local_port);
|
|
WARN_ON(ha->max_req_queues < 3);
|
|
|
|
qla_nvme_fc_transport.max_hw_queues =
|
|
min((uint8_t)(qla_nvme_fc_transport.max_hw_queues),
|
|
(uint8_t)(ha->max_req_queues - 2));
|
|
|
|
pinfo.node_name = wwn_to_u64(vha->node_name);
|
|
pinfo.port_name = wwn_to_u64(vha->port_name);
|
|
pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR;
|
|
pinfo.port_id = vha->d_id.b24;
|
|
|
|
ql_log(ql_log_info, vha, 0xffff,
|
|
"register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n",
|
|
pinfo.node_name, pinfo.port_name, pinfo.port_id);
|
|
qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary;
|
|
|
|
ret = nvme_fc_register_localport(&pinfo, tmpl,
|
|
get_device(&ha->pdev->dev), &vha->nvme_local_port);
|
|
if (ret) {
|
|
ql_log(ql_log_warn, vha, 0xffff,
|
|
"register_localport failed: ret=%x\n", ret);
|
|
} else {
|
|
vha->nvme_local_port->private = vha;
|
|
}
|
|
|
|
return ret;
|
|
}
|