diff options
Diffstat (limited to 'drivers/scsi/csiostor/csio_attr.c')
| -rw-r--r-- | drivers/scsi/csiostor/csio_attr.c | 796 |
1 files changed, 796 insertions, 0 deletions
diff --git a/drivers/scsi/csiostor/csio_attr.c b/drivers/scsi/csiostor/csio_attr.c new file mode 100644 index 000000000000..065a87ace623 --- /dev/null +++ b/drivers/scsi/csiostor/csio_attr.c @@ -0,0 +1,796 @@ +/* + * This file is part of the Chelsio FCoE driver for Linux. + * + * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/mm.h> +#include <linux/jiffies.h> +#include <scsi/fc/fc_fs.h> + +#include "csio_init.h" + +static void +csio_vport_set_state(struct csio_lnode *ln); + +/* + * csio_reg_rnode - Register a remote port with FC transport. + * @rn: Rnode representing remote port. + * + * Call fc_remote_port_add() to register this remote port with FC transport. + * If remote port is Initiator OR Target OR both, change the role appropriately. + * + */ +void +csio_reg_rnode(struct csio_rnode *rn) +{ + struct csio_lnode *ln = csio_rnode_to_lnode(rn); + struct Scsi_Host *shost = csio_ln_to_shost(ln); + struct fc_rport_identifiers ids; + struct fc_rport *rport; + struct csio_service_parms *sp; + + ids.node_name = wwn_to_u64(csio_rn_wwnn(rn)); + ids.port_name = wwn_to_u64(csio_rn_wwpn(rn)); + ids.port_id = rn->nport_id; + ids.roles = FC_RPORT_ROLE_UNKNOWN; + + if (rn->role & CSIO_RNFR_INITIATOR || rn->role & CSIO_RNFR_TARGET) { + rport = rn->rport; + CSIO_ASSERT(rport != NULL); + goto update_role; + } + + rn->rport = fc_remote_port_add(shost, 0, &ids); + if (!rn->rport) { + csio_ln_err(ln, "Failed to register rport = 0x%x.\n", + rn->nport_id); + return; + } + + ln->num_reg_rnodes++; + rport = rn->rport; + spin_lock_irq(shost->host_lock); + *((struct csio_rnode **)rport->dd_data) = rn; + spin_unlock_irq(shost->host_lock); + + sp = &rn->rn_sparm; + rport->maxframe_size = ntohs(sp->csp.sp_bb_data); + if (ntohs(sp->clsp[2].cp_class) & FC_CPC_VALID) + rport->supported_classes = FC_COS_CLASS3; + else + rport->supported_classes = FC_COS_UNSPECIFIED; +update_role: + if (rn->role & CSIO_RNFR_INITIATOR) + ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; + if (rn->role & CSIO_RNFR_TARGET) + ids.roles |= FC_RPORT_ROLE_FCP_TARGET; + + if (ids.roles != FC_RPORT_ROLE_UNKNOWN) + fc_remote_port_rolechg(rport, ids.roles); + + rn->scsi_id = rport->scsi_target_id; + + csio_ln_dbg(ln, "Remote port x%x role 0x%x registered\n", + rn->nport_id, ids.roles); +} + +/* + * csio_unreg_rnode - Unregister a remote port with FC transport. + * @rn: Rnode representing remote port. + * + * Call fc_remote_port_delete() to unregister this remote port with FC + * transport. + * + */ +void +csio_unreg_rnode(struct csio_rnode *rn) +{ + struct csio_lnode *ln = csio_rnode_to_lnode(rn); + struct fc_rport *rport = rn->rport; + + rn->role &= ~(CSIO_RNFR_INITIATOR | CSIO_RNFR_TARGET); + fc_remote_port_delete(rport); + ln->num_reg_rnodes--; + + csio_ln_dbg(ln, "Remote port x%x un-registered\n", rn->nport_id); +} + +/* + * csio_lnode_async_event - Async events from local port. + * @ln: lnode representing local port. + * + * Async events from local node that FC transport/SCSI ML + * should be made aware of (Eg: RSCN). + */ +void +csio_lnode_async_event(struct csio_lnode *ln, enum csio_ln_fc_evt fc_evt) +{ + switch (fc_evt) { + case CSIO_LN_FC_RSCN: + /* Get payload of rscn from ln */ + /* For each RSCN entry */ + /* + * fc_host_post_event(shost, + * fc_get_event_number(), + * FCH_EVT_RSCN, + * rscn_entry); + */ + break; + case CSIO_LN_FC_LINKUP: + /* send fc_host_post_event */ + /* set vport state */ + if (csio_is_npiv_ln(ln)) + csio_vport_set_state(ln); + + break; + case CSIO_LN_FC_LINKDOWN: + /* send fc_host_post_event */ + /* set vport state */ + if (csio_is_npiv_ln(ln)) + csio_vport_set_state(ln); + + break; + case CSIO_LN_FC_ATTRIB_UPDATE: + csio_fchost_attr_init(ln); + break; + default: + break; + } +} + +/* + * csio_fchost_attr_init - Initialize FC transport attributes + * @ln: Lnode. + * + */ +void +csio_fchost_attr_init(struct csio_lnode *ln) +{ + struct Scsi_Host *shost = csio_ln_to_shost(ln); + + fc_host_node_name(shost) = wwn_to_u64(csio_ln_wwnn(ln)); + fc_host_port_name(shost) = wwn_to_u64(csio_ln_wwpn(ln)); + + fc_host_supported_classes(shost) = FC_COS_CLASS3; + fc_host_max_npiv_vports(shost) = + (csio_lnode_to_hw(ln))->fres_info.max_vnps; + fc_host_supported_speeds(shost) = FC_PORTSPEED_10GBIT | + FC_PORTSPEED_1GBIT; + + fc_host_maxframe_size(shost) = ntohs(ln->ln_sparm.csp.sp_bb_data); + memset(fc_host_supported_fc4s(shost), 0, + sizeof(fc_host_supported_fc4s(shost))); + fc_host_supported_fc4s(shost)[7] = 1; + + memset(fc_host_active_fc4s(shost), 0, + sizeof(fc_host_active_fc4s(shost))); + fc_host_active_fc4s(shost)[7] = 1; +} + +/* + * csio_get_host_port_id - sysfs entries for nport_id is + * populated/cached from this function + */ +static void +csio_get_host_port_id(struct Scsi_Host *shost) +{ + struct csio_lnode *ln = shost_priv(shost); + struct csio_hw *hw = csio_lnode_to_hw(ln); + + spin_lock_irq(&hw->lock); + fc_host_port_id(shost) = ln->nport_id; + spin_unlock_irq(&hw->lock); +} + +/* + * csio_get_port_type - Return FC local port type. + * @shost: scsi host. + * + */ +static void +csio_get_host_port_type(struct Scsi_Host *shost) +{ + struct csio_lnode *ln = shost_priv(shost); + struct csio_hw *hw = csio_lnode_to_hw(ln); + + spin_lock_irq(&hw->lock); + if (csio_is_npiv_ln(ln)) + fc_host_port_type(shost) = FC_PORTTYPE_NPIV; + else + fc_host_port_type(shost) = FC_PORTTYPE_NPORT; + spin_unlock_irq(&hw->lock); +} + +/* + * csio_get_port_state - Return FC local port state. + * @shost: scsi host. + * + */ +static void +csio_get_host_port_state(struct Scsi_Host *shost) +{ + struct csio_lnode *ln = shost_priv(shost); + struct csio_hw *hw = csio_lnode_to_hw(ln); + char state[16]; + + spin_lock_irq(&hw->lock); + + csio_lnode_state_to_str(ln, state); + if (!strcmp(state, "READY")) + fc_host_port_state(shost) = FC_PORTSTATE_ONLINE; + else if (!strcmp(state, "OFFLINE")) + fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; + else + fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; + + spin_unlock_irq(&hw->lock); +} + +/* + * csio_get_host_speed - Return link speed to FC transport. + * @shost: scsi host. + * + */ +static void +csio_get_host_speed(struct Scsi_Host *shost) +{ + struct csio_lnode *ln = shost_priv(shost); + struct csio_hw *hw = csio_lnode_to_hw(ln); + + spin_lock_irq(&hw->lock); + switch (hw->pport[ln->portid].link_speed) { + case FW_PORT_CAP_SPEED_1G: + fc_host_speed(shost) = FC_PORTSPEED_1GBIT; + break; + case FW_PORT_CAP_SPEED_10G: + fc_host_speed(shost) = FC_PORTSPEED_10GBIT; + break; + default: + fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; + break; + } + spin_unlock_irq(&hw->lock); +} + +/* + * csio_get_host_fabric_name - Return fabric name + * @shost: scsi host. + * + */ +static void +csio_get_host_fabric_name(struct Scsi_Host *shost) +{ + struct csio_lnode *ln = shost_priv(shost); + struct csio_rnode *rn = NULL; + struct csio_hw *hw = csio_lnode_to_hw(ln); + + spin_lock_irq(&hw->lock); + rn = csio_rnode_lookup_portid(ln, FC_FID_FLOGI); + if (rn) + fc_host_fabric_name(shost) = wwn_to_u64(csio_rn_wwnn(rn)); + else + fc_host_fabric_name(shost) = 0; + spin_unlock_irq(&hw->lock); +} + +/* + * csio_get_host_speed - Return FC transport statistics. + * @ln: Lnode. + * + */ +static struct fc_host_statistics * +csio_get_stats(struct Scsi_Host *shost) +{ + struct csio_lnode *ln = shost_priv(shost); + struct csio_hw *hw = csio_lnode_to_hw(ln); + struct fc_host_statistics *fhs = &ln->fch_stats; + struct fw_fcoe_port_stats fcoe_port_stats; + uint64_t seconds; + + memset(&fcoe_port_stats, 0, sizeof(struct fw_fcoe_port_stats)); + csio_get_phy_port_stats(hw, ln->portid, &fcoe_port_stats); + + fhs->tx_frames += (be64_to_cpu(fcoe_port_stats.tx_bcast_frames) + + be64_to_cpu(fcoe_port_stats.tx_mcast_frames) + + be64_to_cpu(fcoe_port_stats.tx_ucast_frames) + + be64_to_cpu(fcoe_port_stats.tx_offload_frames)); + fhs->tx_words += (be64_to_cpu(fcoe_port_stats.tx_bcast_bytes) + + be64_to_cpu(fcoe_port_stats.tx_mcast_bytes) + + be64_to_cpu(fcoe_port_stats.tx_ucast_bytes) + + be64_to_cpu(fcoe_port_stats.tx_offload_bytes)) / + CSIO_WORD_TO_BYTE; + fhs->rx_frames += (be64_to_cpu(fcoe_port_stats.rx_bcast_frames) + + be64_to_cpu(fcoe_port_stats.rx_mcast_frames) + + be64_to_cpu(fcoe_port_stats.rx_ucast_frames)); + fhs->rx_words += (be64_to_cpu(fcoe_port_stats.rx_bcast_bytes) + + be64_to_cpu(fcoe_port_stats.rx_mcast_bytes) + + be64_to_cpu(fcoe_port_stats.rx_ucast_bytes)) / + CSIO_WORD_TO_BYTE; + fhs->error_frames += be64_to_cpu(fcoe_port_stats.rx_err_frames); + fhs->fcp_input_requests += ln->stats.n_input_requests; + fhs->fcp_output_requests += ln->stats.n_output_requests; + fhs->fcp_control_requests += ln->stats.n_control_requests; + fhs->fcp_input_megabytes += ln->stats.n_input_bytes >> 20; + fhs->fcp_output_megabytes += ln->stats.n_output_bytes >> 20; + fhs->link_failure_count = ln->stats.n_link_down; + /* Reset stats for the device */ + seconds = jiffies_to_msecs(jiffies) - hw->stats.n_reset_start; + do_div(seconds, 1000); + fhs->seconds_since_last_reset = seconds; + + return fhs; +} + +/* + * csio_set_rport_loss_tmo - Set the rport dev loss timeout + * @rport: fc rport. + * @timeout: new value for dev loss tmo. + * + * If timeout is non zero set the dev_loss_tmo to timeout, else set + * dev_loss_tmo to one. + */ +static void +csio_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) +{ + if (timeout) + rport->dev_loss_tmo = timeout; + else + rport->dev_loss_tmo = 1; +} + +static void +csio_vport_set_state(struct csio_lnode *ln) +{ + struct fc_vport *fc_vport = ln->fc_vport; + struct csio_lnode *pln = ln->pln; + char state[16]; + + /* Set fc vport state based on phyiscal lnode */ + csio_lnode_state_to_str(pln, state); + if (strcmp(state, "READY")) { + fc_vport_set_state(fc_vport, FC_VPORT_LINKDOWN); + return; + } + + if (!(pln->flags & CSIO_LNF_NPIVSUPP)) { + fc_vport_set_state(fc_vport, FC_VPORT_NO_FABRIC_SUPP); + return; + } + + /* Set fc vport state based on virtual lnode */ + csio_lnode_state_to_str(ln, state); + if (strcmp(state, "READY")) { + fc_vport_set_state(fc_vport, FC_VPORT_LINKDOWN); + return; + } + fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE); +} + +static int +csio_fcoe_alloc_vnp(struct csio_hw *hw, struct csio_lnode *ln) +{ + struct csio_lnode *pln; + struct csio_mb *mbp; + struct fw_fcoe_vnp_cmd *rsp; + int ret = 0; + int retry = 0; + + /* Issue VNP cmd to alloc vport */ + /* Allocate Mbox request */ + spin_lock_irq(&hw->lock); + mbp = mempool_alloc(hw->mb_mempool, GFP_ATOMIC); + if (!mbp) { + CSIO_INC_STATS(hw, n_err_nomem); + ret = -ENOMEM; + goto out; + } + + pln = ln->pln; + ln->fcf_flowid = pln->fcf_flowid; + ln->portid = pln->portid; + + csio_fcoe_vnp_alloc_init_mb(ln, mbp, CSIO_MB_DEFAULT_TMO, + pln->fcf_flowid, pln->vnp_flowid, 0, + csio_ln_wwnn(ln), csio_ln_wwpn(ln), NULL); + + for (retry = 0; retry < 3; retry++) { + /* FW is expected to complete vnp cmd in immediate mode + * without much delay. + * Otherwise, there will be increase in IO latency since HW + * lock is held till completion of vnp mbox cmd. + */ + ret = csio_mb_issue(hw, mbp); + if (ret != -EBUSY) + break; + + /* Retry if mbox returns busy */ + spin_unlock_irq(&hw->lock); + msleep(2000); + spin_lock_irq(&hw->lock); + } + + if (ret) { + csio_ln_err(ln, "Failed to issue mbox FCoE VNP command\n"); + goto out_free; + } + + /* Process Mbox response of VNP command */ + rsp = (struct fw_fcoe_vnp_cmd *)(mbp->mb); + if (FW_CMD_RETVAL_GET(ntohl(rsp->alloc_to_len16)) != FW_SUCCESS) { + csio_ln_err(ln, "FCOE VNP ALLOC cmd returned 0x%x!\n", + FW_CMD_RETVAL_GET(ntohl(rsp->alloc_to_len16))); + ret = -EINVAL; + goto out_free; + } + + ln->vnp_flowid = FW_FCOE_VNP_CMD_VNPI_GET( + ntohl(rsp->gen_wwn_to_vnpi)); + memcpy(csio_ln_wwnn(ln), rsp->vnport_wwnn, 8); + memcpy(csio_ln_wwpn(ln), rsp->vnport_wwpn, 8); + + csio_ln_dbg(ln, "FCOE VNPI: 0x%x\n", ln->vnp_flowid); + csio_ln_dbg(ln, "\tWWNN: %x%x%x%x%x%x%x%x\n", + ln->ln_sparm.wwnn[0], ln->ln_sparm.wwnn[1], + ln->ln_sparm.wwnn[2], ln->ln_sparm.wwnn[3], + ln->ln_sparm.wwnn[4], ln->ln_sparm.wwnn[5], + ln->ln_sparm.wwnn[6], ln->ln_sparm.wwnn[7]); + csio_ln_dbg(ln, "\tWWPN: %x%x%x%x%x%x%x%x\n", + ln->ln_sparm.wwpn[0], ln->ln_sparm.wwpn[1], + ln->ln_sparm.wwpn[2], ln->ln_sparm.wwpn[3], + ln->ln_sparm.wwpn[4], ln->ln_sparm.wwpn[5], + ln->ln_sparm.wwpn[6], ln->ln_sparm.wwpn[7]); + +out_free: + mempool_free(mbp, hw->mb_mempool); +out: + spin_unlock_irq(&hw->lock); + return ret; +} + +static int +csio_fcoe_free_vnp(struct csio_hw *hw, struct csio_lnode *ln) +{ + struct csio_lnode *pln; + struct csio_mb *mbp; + struct fw_fcoe_vnp_cmd *rsp; + int ret = 0; + int retry = 0; + + /* Issue VNP cmd to free vport */ + /* Allocate Mbox request */ + + spin_lock_irq(&hw->lock); + mbp = mempool_alloc(hw->mb_mempool, GFP_ATOMIC); + if (!mbp) { + CSIO_INC_STATS(hw, n_err_nomem); + ret = -ENOMEM; + goto out; + } + + pln = ln->pln; + + csio_fcoe_vnp_free_init_mb(ln, mbp, CSIO_MB_DEFAULT_TMO, + ln->fcf_flowid, ln->vnp_flowid, + NULL); + + for (retry = 0; retry < 3; retry++) { + ret = csio_mb_issue(hw, mbp); + if (ret != -EBUSY) + break; + + /* Retry if mbox returns busy */ + spin_unlock_irq(&hw->lock); + msleep(2000); + spin_lock_irq(&hw->lock); + } + + if (ret) { + csio_ln_err(ln, "Failed to issue mbox FCoE VNP command\n"); + goto out_free; + } + + /* Process Mbox response of VNP command */ + rsp = (struct fw_fcoe_vnp_cmd *)(mbp->mb); + if (FW_CMD_RETVAL_GET(ntohl(rsp->alloc_to_len16)) != FW_SUCCESS) { + csio_ln_err(ln, "FCOE VNP FREE cmd returned 0x%x!\n", + FW_CMD_RETVAL_GET(ntohl(rsp->alloc_to_len16))); + ret = -EINVAL; + } + +out_free: + mempool_free(mbp, hw->mb_mempool); +out: + spin_unlock_irq(&hw->lock); + return ret; +} + +static int +csio_vport_create(struct fc_vport *fc_vport, bool disable) +{ + struct Scsi_Host *shost = fc_vport->shost; + struct csio_lnode *pln = shost_priv(shost); + struct csio_lnode *ln = NULL; + struct csio_hw *hw = csio_lnode_to_hw(pln); + uint8_t wwn[8]; + int ret = -1; + + ln = csio_shost_init(hw, &fc_vport->dev, false, pln); + if (!ln) + goto error; + + if (fc_vport->node_name != 0) { + u64_to_wwn(fc_vport->node_name, wwn); + + if (!CSIO_VALID_WWN(wwn)) { + csio_ln_err(ln, + "vport create failed. Invalid wwnn\n"); + goto error; + } + memcpy(csio_ln_wwnn(ln), wwn, 8); + } + + if (fc_vport->port_name != 0) { + u64_to_wwn(fc_vport->port_name, wwn); + + if (!CSIO_VALID_WWN(wwn)) { + csio_ln_err(ln, + "vport create failed. Invalid wwpn\n"); + goto error; + } + + if (csio_lnode_lookup_by_wwpn(hw, wwn)) { + csio_ln_err(ln, + "vport create failed. wwpn already exists\n"); + goto error; + } + memcpy(csio_ln_wwpn(ln), wwn, 8); + } + + fc_vport_set_state(fc_vport, FC_VPORT_INITIALIZING); + + if (csio_fcoe_alloc_vnp(hw, ln)) + goto error; + + *(struct csio_lnode **)fc_vport->dd_data = ln; + ln->fc_vport = fc_vport; + if (!fc_vport->node_name) + fc_vport->node_name = wwn_to_u64(csio_ln_wwnn(ln)); + if (!fc_vport->port_name) + fc_vport->port_name = wwn_to_u64(csio_ln_wwpn(ln)); + csio_fchost_attr_init(ln); + return 0; +error: + if (ln) + csio_shost_exit(ln); + + return ret; +} + +static int +csio_vport_delete(struct fc_vport *fc_vport) +{ + struct csio_lnode *ln = *(struct csio_lnode **)fc_vport->dd_data; + struct Scsi_Host *shost = csio_ln_to_shost(ln); + struct csio_hw *hw = csio_lnode_to_hw(ln); + int rmv; + + spin_lock_irq(&hw->lock); + rmv = csio_is_hw_removing(hw); + spin_unlock_irq(&hw->lock); + + if (rmv) { + csio_shost_exit(ln); + return 0; + } + + /* Quiesce ios and send remove event to lnode */ + scsi_block_requests(shost); + spin_lock_irq(&hw->lock); + csio_scsim_cleanup_io_lnode(csio_hw_to_scsim(hw), ln); + csio_lnode_close(ln); + spin_unlock_irq(&hw->lock); + scsi_unblock_requests(shost); + + /* Free vnp */ + if (fc_vport->vport_state != FC_VPORT_DISABLED) + csio_fcoe_free_vnp(hw, ln); + + csio_shost_exit(ln); + return 0; +} + +static int +csio_vport_disable(struct fc_vport *fc_vport, bool disable) +{ + struct csio_lnode *ln = *(struct csio_lnode **)fc_vport->dd_data; + struct Scsi_Host *shost = csio_ln_to_shost(ln); + struct csio_hw *hw = csio_lnode_to_hw(ln); + + /* disable vport */ + if (disable) { + /* Quiesce ios and send stop event to lnode */ + scsi_block_requests(shost); + spin_lock_irq(&hw->lock); + csio_scsim_cleanup_io_lnode(csio_hw_to_scsim(hw), ln); + csio_lnode_stop(ln); + spin_unlock_irq(&hw->lock); + scsi_unblock_requests(shost); + + /* Free vnp */ + csio_fcoe_free_vnp(hw, ln); + fc_vport_set_state(fc_vport, FC_VPORT_DISABLED); + csio_ln_err(ln, "vport disabled\n"); + return 0; + } else { + /* enable vport */ + fc_vport_set_state(fc_vport, FC_VPORT_INITIALIZING); + if (csio_fcoe_alloc_vnp(hw, ln)) { + csio_ln_err(ln, "vport enabled failed.\n"); + return -1; + } + csio_ln_err(ln, "vport enabled\n"); + return 0; + } +} + +static void +csio_dev_loss_tmo_callbk(struct fc_rport *rport) +{ + struct csio_rnode *rn; + struct csio_hw *hw; + struct csio_lnode *ln; + + rn = *((struct csio_rnode **)rport->dd_data); + ln = csio_rnode_to_lnode(rn); + hw = csio_lnode_to_hw(ln); + + spin_lock_irq(&hw->lock); + + /* return if driver is being removed or same rnode comes back online */ + if (csio_is_hw_removing(hw) || csio_is_rnode_ready(rn)) + goto out; + + csio_ln_dbg(ln, "devloss timeout on rnode:%p portid:x%x flowid:x%x\n", + rn, rn->nport_id, csio_rn_flowid(rn)); + + CSIO_INC_STATS(ln, n_dev_loss_tmo); + + /* + * enqueue devloss event to event worker thread to serialize all + * rnode events. + */ + if (csio_enqueue_evt(hw, CSIO_EVT_DEV_LOSS, &rn, sizeof(rn))) { + CSIO_INC_STATS(hw, n_evt_drop); + goto out; + } + + if (!(hw->flags & CSIO_HWF_FWEVT_PENDING)) { + hw->flags |= CSIO_HWF_FWEVT_PENDING; + spin_unlock_irq(&hw->lock); + schedule_work(&hw->evtq_work); + return; + } + +out: + spin_unlock_irq(&hw->lock); +} + +/* FC transport functions template - Physical port */ +struct fc_function_template csio_fc_transport_funcs = { + .show_host_node_name = 1, + .show_host_port_name = 1, + .show_host_supported_classes = 1, + .show_host_supported_fc4s = 1, + .show_host_maxframe_size = 1, + + .get_host_port_id = csio_get_host_port_id, + .show_host_port_id = 1, + + .get_host_port_type = csio_get_host_port_type, + .show_host_port_type = 1, + + .get_host_port_state = csio_get_host_port_state, + .show_host_port_state = 1, + + .show_host_active_fc4s = 1, + .get_host_speed = csio_get_host_speed, + .show_host_speed = 1, + .get_host_fabric_name = csio_get_host_fabric_name, + .show_host_fabric_name = 1, + + .get_fc_host_stats = csio_get_stats, + + .dd_fcrport_size = sizeof(struct csio_rnode *), + .show_rport_maxframe_size = 1, + .show_rport_supported_classes = 1, + + .set_rport_dev_loss_tmo = csio_set_rport_loss_tmo, + .show_rport_dev_loss_tmo = 1, + + .show_starget_port_id = 1, + .show_starget_node_name = 1, + .show_starget_port_name = 1, + + .dev_loss_tmo_callbk = csio_dev_loss_tmo_callbk, + .dd_fcvport_size = sizeof(struct csio_lnode *), + + .vport_create = csio_vport_create, + .vport_disable = csio_vport_disable, + .vport_delete = csio_vport_delete, +}; + +/* FC transport functions template - Virtual port */ +struct fc_function_template csio_fc_transport_vport_funcs = { + .show_host_node_name = 1, + .show_host_port_name = 1, + .show_host_supported_classes = 1, + .show_host_supported_fc4s = 1, + .show_host_maxframe_size = 1, + + .get_host_port_id = csio_get_host_port_id, + .show_host_port_id = 1, + + .get_host_port_type = csio_get_host_port_type, + .show_host_port_type = 1, + + .get_host_port_state = csio_get_host_port_state, + .show_host_port_state = 1, + .show_host_active_fc4s = 1, + + .get_host_speed = csio_get_host_speed, + .show_host_speed = 1, + + .get_host_fabric_name = csio_get_host_fabric_name, + .show_host_fabric_name = 1, + + .get_fc_host_stats = csio_get_stats, + + .dd_fcrport_size = sizeof(struct csio_rnode *), + .show_rport_maxframe_size = 1, + .show_rport_supported_classes = 1, + + .set_rport_dev_loss_tmo = csio_set_rport_loss_tmo, + .show_rport_dev_loss_tmo = 1, + + .show_starget_port_id = 1, + .show_starget_node_name = 1, + .show_starget_port_name = 1, + + .dev_loss_tmo_callbk = csio_dev_loss_tmo_callbk, + +}; |