/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2017-2025 Broadcom. All Rights Reserved. The term * * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * * Copyright (C) 2004-2016 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.broadcom.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of version 2 of the GNU General * * Public License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful. * * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * * TO BE LEGALLY INVALID. See the GNU General Public License for * * more details, a copy of which can be found in the file COPYING * * included with this package. *
*******************************************************************/
#define LPFC_MAX_INFO_TMP_LEN 100 #define LPFC_INFO_MORE_STR "\nCould be more info...\n" /* * Write key size should be multiple of 4. If write key is changed * make sure that library write key is also changed.
*/ #define LPFC_REG_WRITE_KEY_SIZE 4 #define LPFC_REG_WRITE_KEY "EMLX"
constchar *const trunk_errmsg[] = { /* map errcode */ "", /* There is no such error code at index 0*/ "link negotiated speed does not match existing" " trunk - link was \"low\" speed", "link negotiated speed does not match" " existing trunk - link was \"middle\" speed", "link negotiated speed does not match existing" " trunk - link was \"high\" speed", "Attached to non-trunking port - F_Port", "Attached to non-trunking port - N_Port", "FLOGI response timeout", "non-FLOGI frame received", "Invalid FLOGI response", "Trunking initialization protocol", "Trunk peer device mismatch",
};
/** * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules * @incr: integer to convert. * @hdw: ascii string holding converted integer plus a string terminator. * * Description: * JEDEC Joint Electron Device Engineering Council. * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii * character string. The string is then terminated with a NULL in byte 9. * Hex 0-9 becomes ascii '0' to '9'. * Hex a-f becomes ascii '=' to 'B' capital B. * * Notes: * Coded for 32 bit integers only.
**/ staticvoid
lpfc_jedec_to_ascii(int incr, char hdw[])
{ int i, j; for (i = 0; i < 8; i++) {
j = (incr & 0xf); if (j <= 9)
hdw[7 - i] = 0x30 + j; else
hdw[7 - i] = 0x61 + j - 10;
incr = (incr >> 4);
}
hdw[8] = 0; return;
}
if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); return len;
} if (phba->nvmet_support) { if (!phba->targetport) {
len = scnprintf(buf, PAGE_SIZE, "NVME Target: x%llx is not allocated\n",
wwn_to_u64(vport->fc_portname.u.wwn)); return len;
} /* Port state is only one of two values for now. */ if (phba->targetport->port_id)
statep = "REGISTERED"; else
statep = "INIT";
scnprintf(tmp, sizeof(tmp), "NVME Target Enabled State %s\n",
statep); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done;
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
nrport = NULL;
spin_lock(&ndlp->lock);
rport = lpfc_ndlp_get_nrport(ndlp); if (rport)
nrport = rport->remoteport;
spin_unlock(&ndlp->lock); if (!nrport) continue;
/* Port state is only one of two values for now. */ switch (nrport->port_state) { case FC_OBJSTATE_ONLINE:
statep = "ONLINE"; break; case FC_OBJSTATE_UNKNOWN:
statep = "UNKNOWN "; break; default:
statep = "UNSUPPORTED"; break;
}
/* Tab in to show lport ownership. */ if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) goto unlock_buf_done; if (phba->brd_no >= 10) { if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) goto unlock_buf_done;
}
/** * lpfc_info_show - Return some pci info about the host in ascii * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the formatted text from lpfc_info(). * * Returns: size of formatted string.
**/ static ssize_t
lpfc_info_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *host = class_to_shost(dev);
/** * lpfc_temp_sensor_show - Return the temperature sensor level * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the formatted support level. * * Description: * Returns a number indicating the temperature sensor level currently * supported, zero or one in ascii. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support);
}
/** * lpfc_modeldesc_show - Return the model description of the hba * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the scsi vpd model description. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
/** * lpfc_link_state_show - Return the link state of the port * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains text describing the state of the link. * * Notes: * The switch statement has no default so zero will be returned. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_link_state_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; int len = 0;
switch (phba->link_state) { case LPFC_LINK_UNKNOWN: case LPFC_WARM_START: case LPFC_INIT_START: case LPFC_INIT_MBX_CMDS: case LPFC_LINK_DOWN: case LPFC_HBA_ERROR: if (test_bit(LINK_DISABLED, &phba->hba_flag))
len += scnprintf(buf + len, PAGE_SIZE-len, "Link Down - User disabled\n"); else
len += scnprintf(buf + len, PAGE_SIZE-len, "Link Down\n"); break; case LPFC_LINK_UP: case LPFC_CLEAR_LA: case LPFC_HBA_READY:
len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
switch (vport->port_state) { case LPFC_LOCAL_CFG_LINK:
len += scnprintf(buf + len, PAGE_SIZE-len, "Configuring Link\n"); break; case LPFC_FDISC: case LPFC_FLOGI: case LPFC_FABRIC_CFG_LINK: case LPFC_NS_REG: case LPFC_NS_QRY: case LPFC_BUILD_DISC_LIST: case LPFC_DISC_AUTH:
len += scnprintf(buf + len, PAGE_SIZE - len, "Discovery\n"); break; case LPFC_VPORT_READY:
len += scnprintf(buf + len, PAGE_SIZE - len, "Ready\n"); break;
case LPFC_VPORT_FAILED:
len += scnprintf(buf + len, PAGE_SIZE - len, "Failed\n"); break;
case LPFC_VPORT_UNKNOWN:
len += scnprintf(buf + len, PAGE_SIZE - len, "Unknown\n"); break;
} if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { if (test_bit(FC_PUBLIC_LOOP, &vport->fc_flag))
len += scnprintf(buf + len, PAGE_SIZE-len, " Public Loop\n"); else
len += scnprintf(buf + len, PAGE_SIZE-len, " Private Loop\n");
} else { if (test_bit(FC_FABRIC, &vport->fc_flag)) { if (phba->sli_rev == LPFC_SLI_REV4 &&
vport->port_type == LPFC_PHYSICAL_PORT &&
phba->sli4_hba.fawwpn_flag &
LPFC_FAWWPN_FABRIC)
len += scnprintf(buf + len,
PAGE_SIZE - len, " Fabric FA-PWWN\n"); else
len += scnprintf(buf + len,
PAGE_SIZE - len, " Fabric\n");
} else {
len += scnprintf(buf + len, PAGE_SIZE-len, " Point-2-Point\n");
}
}
}
if ((phba->sli_rev == LPFC_SLI_REV4) &&
((bf_get(lpfc_sli_intf_if_type,
&phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_IF_TYPE_6))) { struct lpfc_trunk_link link = phba->trunk_link;
if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
len += scnprintf(buf + len, PAGE_SIZE - len, "Trunk port 0: Link %s %s\n",
(link.link0.state == LPFC_LINK_UP) ? "Up" : "Down. ",
trunk_errmsg[link.link0.fault]);
if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
len += scnprintf(buf + len, PAGE_SIZE - len, "Trunk port 1: Link %s %s\n",
(link.link1.state == LPFC_LINK_UP) ? "Up" : "Down. ",
trunk_errmsg[link.link1.fault]);
if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
len += scnprintf(buf + len, PAGE_SIZE - len, "Trunk port 2: Link %s %s\n",
(link.link2.state == LPFC_LINK_UP) ? "Up" : "Down. ",
trunk_errmsg[link.link2.fault]);
if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
len += scnprintf(buf + len, PAGE_SIZE - len, "Trunk port 3: Link %s %s\n",
(link.link3.state == LPFC_LINK_UP) ? "Up" : "Down. ",
trunk_errmsg[link.link3.fault]);
}
return len;
}
/** * lpfc_sli4_protocol_show - Return the fip mode of the HBA * @dev: class unused variable. * @attr: device attribute, not used. * @buf: on return contains the module description text. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
if (phba->sli_rev < LPFC_SLI_REV4) return scnprintf(buf, PAGE_SIZE, "fc\n");
if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) return scnprintf(buf, PAGE_SIZE, "fcoe\n"); if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) return scnprintf(buf, PAGE_SIZE, "fc\n");
} return scnprintf(buf, PAGE_SIZE, "unknown\n");
}
/** * lpfc_oas_supported_show - Return whether or not Optimized Access Storage * (OAS) is supported. * @dev: class unused variable. * @attr: device attribute, not used. * @buf: on return contains the module description text. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba;
/** * lpfc_link_state_store - Transition the link_state on an HBA port * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: one or more lpfc_polling_flags values. * @count: not used. * * Returns: * -EINVAL if the buffer is not "up" or "down" * return from link state change function if non-zero * length of the buf on success
**/ static ssize_t
lpfc_link_state_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
if (status == 0) return strlen(buf); else return status;
}
/** * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the sum of fc mapped and unmapped. * * Description: * Returns the ascii text number of the sum of the fc mapped and unmapped * vport counts. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_num_discovered_ports_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
/** * lpfc_issue_lip - Misnomer, name carried over from long ago * @shost: Scsi_Host pointer. * * Description: * Bring the link down gracefully then re-init the link. The firmware will * re-init the fiber channel interface as required. Does not issue a LIP. * * Returns: * -EPERM port offline or management commands are being blocked * -ENOMEM cannot allocate memory for the mailbox command * -EIO error sending the mailbox command * zero for success
**/ staticint
lpfc_issue_lip(struct Scsi_Host *shost)
{ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *pmboxq; int mbxstatus = MBXERR_ERROR;
/* * If the link is offline, disabled or BLOCK_MGMT_IO * it doesn't make any sense to allow issue_lip
*/ if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag) ||
test_bit(LINK_DISABLED, &phba->hba_flag) ||
(phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) return -EPERM;
/** * lpfc_do_offline - Issues a mailbox command to bring the link down * @phba: lpfc_hba pointer. * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. * * Notes: * Assumes any error from lpfc_do_offline() will be negative. * Can wait up to 5 seconds for the port ring buffers count * to reach zero, prints a warning if it is not zero and continues. * lpfc_workq_post_event() returns a non-zero return code if call fails. * * Returns: * -EIO error posting the event * zero for success
**/ staticint
lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
{ struct completion online_compl; struct lpfc_queue *qp = NULL; struct lpfc_sli_ring *pring; struct lpfc_sli *psli; int status = 0; int i; int rc;
/* * If freeing the queues have already started, don't access them. * Otherwise set FREE_WAIT to indicate that queues are being used * to hold the freeing process until we finish.
*/
spin_lock_irq(&phba->hbalock); if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) {
psli->sli_flag |= LPFC_QUEUE_FREE_WAIT;
} else {
spin_unlock_irq(&phba->hbalock); goto skip_wait;
}
spin_unlock_irq(&phba->hbalock);
/* Wait a little for things to settle down, but not * long enough for dev loss timeout to expire.
*/ if (phba->sli_rev != LPFC_SLI_REV4) { for (i = 0; i < psli->num_rings; i++) {
pring = &psli->sli3_ring[i]; if (!lpfc_emptyq_wait(phba, &pring->txcmplq,
&phba->hbalock)) goto out;
}
} else {
list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
pring = qp->pring; if (!pring) continue; if (!lpfc_emptyq_wait(phba, &pring->txcmplq,
&pring->ring_lock)) goto out;
}
}
out:
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT;
spin_unlock_irq(&phba->hbalock);
/** * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA * @phba: lpfc_hba pointer. * * Description: * Issues a PCI secondary bus reset for the phba->pcidev. * * Notes: * First walks the bus_list to ensure only PCI devices with Emulex * vendor id, device ids that support hot reset, only one occurrence * of function 0, and all ports on the bus are in offline mode to ensure the * hot reset only affects one valid HBA. * * Returns: * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 * -ENODEV, NULL ptr to pcidev * -EBADSLT, detected invalid device * -EBUSY, port is not in offline state * 0, successful
*/ staticint
lpfc_reset_pci_bus(struct lpfc_hba *phba)
{ struct pci_dev *pdev = phba->pcidev; struct Scsi_Host *shost = NULL; struct lpfc_hba *phba_other = NULL; struct pci_dev *ptr = NULL; int res;
if (phba->cfg_enable_hba_reset != 2) return -ENOTSUPP;
res = lpfc_check_pci_resettable(phba); if (res) return res;
/* Walk the list of devices on the pci_dev's bus */
list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { /* Check port is offline */
shost = pci_get_drvdata(ptr); if (shost) {
phba_other =
((struct lpfc_vport *)shost->hostdata)->phba; if (!test_bit(FC_OFFLINE_MODE,
&phba_other->pport->fc_flag)) {
lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, "8349 WWPN = 0x%02x%02x%02x%02x" "%02x%02x%02x%02x is not " "offline!\n",
phba_other->wwpn[0],
phba_other->wwpn[1],
phba_other->wwpn[2],
phba_other->wwpn[3],
phba_other->wwpn[4],
phba_other->wwpn[5],
phba_other->wwpn[6],
phba_other->wwpn[7]); return -EBUSY;
}
}
}
/* Issue PCI bus reset */
res = pci_reset_bus(pdev); if (res) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "8350 PCI reset bus failed: %d\n", res);
}
return res;
}
/** * lpfc_selective_reset - Offline then onlines the port * @phba: lpfc_hba pointer. * * Description: * If the port is configured to allow a reset then the hba is brought * offline then online. * * Notes: * Assumes any error from lpfc_do_offline() will be negative. * Do not make this function static. * * Returns: * lpfc_do_offline() return code if not zero * -EIO reset not configured or error posting the event * zero for success
**/ int
lpfc_selective_reset(struct lpfc_hba *phba)
{ struct completion online_compl; int status = 0; int rc;
if (!phba->cfg_enable_hba_reset) return -EACCES;
if (!test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag)) {
status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
/** * lpfc_issue_reset - Selectively resets an adapter * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: containing the string "selective". * @count: unused variable. * * Description: * If the buf contains the string "selective" then lpfc_selective_reset() * is called to perform the reset. * * Notes: * Assumes any error from lpfc_selective_reset() will be negative. * If lpfc_selective_reset() returns zero then the length of the buffer * is returned which indicates success * * Returns: * -EINVAL if the buffer does not contain the string "selective" * length of buf if lpfc-selective_reset() if the call succeeds * return value of lpfc_selective_reset() if the call fails
**/ static ssize_t
lpfc_issue_reset(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; int status = -EINVAL;
if (!phba->cfg_enable_hba_reset) return -EACCES;
if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
status = phba->lpfc_selective_reset(phba);
if (status == 0) return strlen(buf); else return status;
}
/** * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness * @phba: lpfc_hba pointer. * * Description: * SLI4 interface type-2 device to wait on the sliport status register for * the readyness after performing a firmware reset. * * Returns: * zero for success, -EPERM when port does not have privilege to perform the * reset, -EIO when port timeout from recovering from the reset. * * Note: * As the caller will interpret the return code by value, be careful in making * change or addition to return codes.
**/ int
lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
{ struct lpfc_register portstat_reg = {0}; int i;
msleep(100); if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
&portstat_reg.word0)) return -EIO;
/* verify if privileged for the request operation */ if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) &&
!bf_get(lpfc_sliport_status_err, &portstat_reg)) return -EPERM;
/* There is no point to wait if the port is in an unrecoverable * state.
*/ if (lpfc_sli4_unrecoverable_port(&portstat_reg)) return -EIO;
/* wait for the SLI port firmware ready after firmware reset */ for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) {
msleep(10); if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
&portstat_reg.word0)) continue; if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) continue; if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) continue; if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) continue; break;
}
if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) return 0; else return -EIO;
}
/** * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc * @phba: lpfc_hba pointer. * @opcode: The sli4 config command opcode. * * Description: * Request SLI4 interface type-2 device to perform a physical register set * access. * * Returns: * zero for success
**/ static ssize_t
lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
{ struct completion online_compl; struct pci_dev *pdev = phba->pcidev; unsignedlong before_fc_flag;
uint32_t sriov_nr_virtfn;
uint32_t reg_val; int status = 0, rc = 0; int job_posted = 1, sriov_err;
if (rc == -EPERM) { /* no privilege for reset */
lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "3150 No privilege to perform the requested " "access: x%x\n", reg_val);
} elseif (rc == -EIO) { /* reset failed, there is nothing more we can do */
lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "3153 Fail to perform the requested " "access: x%x\n", reg_val); if (phba->fw_dump_cmpl)
phba->fw_dump_cmpl = NULL; return rc;
}
/* keep the original port state */ if (test_bit(FC_OFFLINE_MODE, &before_fc_flag)) { if (phba->fw_dump_cmpl)
phba->fw_dump_cmpl = NULL; goto out;
}
/* Firmware dump will trigger an HA_ERATT event, and * lpfc_handle_eratt_s4 routine already handles bringing the port back * online.
*/ if (opcode == LPFC_FW_DUMP) {
wait_for_completion(phba->fw_dump_cmpl);
} else {
init_completion(&online_compl);
job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_ONLINE); if (!job_posted) goto out;
wait_for_completion(&online_compl);
}
out: /* in any case, restore the virtual functions enabled as before */ if (sriov_nr_virtfn) { /* If fw_dump was performed, first disable to clean up */ if (opcode == LPFC_FW_DUMP) {
pci_disable_sriov(pdev);
phba->cfg_sriov_nr_virtfn = 0;
}
sriov_err =
lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); if (!sriov_err)
phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn;
}
switch (val) { case 0:
val = 0x0; /* Disable */ break; case 2:
val = 0x1; /* Enable two port trunk */ break; case 4:
val = 0x2; /* Enable four port trunk */ break; default: return -EINVAL;
}
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, "0070 Set trunk mode with val %ld ", val);
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) return -ENOMEM;
/** * lpfc_board_mode_show - Return the state of the board * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the state of the adapter. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; char * state;
if (phba->link_state == LPFC_HBA_ERROR)
state = "error"; elseif (phba->link_state == LPFC_WARM_START)
state = "warm start"; elseif (phba->link_state == LPFC_INIT_START)
state = "offline"; else
state = "online";
/** * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: containing one of the strings "online", "offline", "warm" or "error". * @count: unused variable. * * Returns: * -EACCES if enable hba reset not enabled * -EINVAL if the buffer does not contain a valid string (see above) * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails * buf length greater than zero indicates success
**/ static ssize_t
lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; struct completion online_compl; char *board_mode_str = NULL; int status = 0; int rc;
if (!phba->cfg_enable_hba_reset) {
status = -EACCES; goto board_mode_out;
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "3050 lpfc_board_mode set to %s\n", buf);
init_completion(&online_compl);
if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
rc = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_ONLINE); if (rc == 0) {
status = -ENOMEM; goto board_mode_out;
}
wait_for_completion(&online_compl); if (status)
status = -EIO;
} elseif (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); elseif (strncmp(buf, "warm", sizeof("warm") - 1) == 0) if (phba->sli_rev == LPFC_SLI_REV4)
status = -EINVAL; else
status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); elseif (strncmp(buf, "error", sizeof("error") - 1) == 0) if (phba->sli_rev == LPFC_SLI_REV4)
status = -EINVAL; else
status = lpfc_do_offline(phba, LPFC_EVT_KILL); elseif (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); elseif (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); elseif (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); elseif (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1)
== 0)
status = lpfc_reset_pci_bus(phba); elseif (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0)
lpfc_issue_hb_tmo(phba); elseif (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0)
status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); else
status = -EINVAL;
/** * lpfc_get_hba_info - Return various bits of informaton about the adapter * @phba: pointer to the adapter structure. * @mxri: max xri count. * @axri: available xri count. * @mrpi: max rpi count. * @arpi: available rpi count. * @mvpi: max vpi count. * @avpi: available vpi count. * * Description: * If an integer pointer for an count is not null then the value for the * count is returned. * * Returns: * zero on error * one for success
**/ staticint
lpfc_get_hba_info(struct lpfc_hba *phba,
uint32_t *mxri, uint32_t *axri,
uint32_t *mrpi, uint32_t *arpi,
uint32_t *mvpi, uint32_t *avpi)
{
LPFC_MBOXQ_t *pmboxq;
MAILBOX_t *pmb; int rc = 0; struct lpfc_sli4_hba *sli4_hba; struct lpfc_max_cfg_param *max_cfg_param;
u16 rsrc_ext_cnt, rsrc_ext_size, max_vpi;
/* * prevent udev from issuing mailbox commands until the port is * configured.
*/ if (phba->link_state < LPFC_LINK_DOWN ||
!phba->mbox_mem_pool ||
(phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) return 0;
if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) return 0;
/* Normally, extents are not used */ if (!phba->sli4_hba.extents_in_use) { if (mrpi)
*mrpi = max_cfg_param->max_rpi; if (mxri)
*mxri = max_cfg_param->max_xri; if (mvpi) {
max_vpi = max_cfg_param->max_vpi;
/* Limit the max we support */ if (max_vpi > LPFC_MAX_VPI)
max_vpi = LPFC_MAX_VPI;
*mvpi = max_vpi;
}
} else { /* Extents in use */ if (mrpi) { if (lpfc_sli4_get_avail_extnt_rsrc(phba,
LPFC_RSC_TYPE_FCOE_RPI,
&rsrc_ext_cnt,
&rsrc_ext_size)) {
rc = 0; goto free_pmboxq;
}
*mrpi = rsrc_ext_cnt * rsrc_ext_size;
}
if (mxri) { if (lpfc_sli4_get_avail_extnt_rsrc(phba,
LPFC_RSC_TYPE_FCOE_XRI,
&rsrc_ext_cnt,
&rsrc_ext_size)) {
rc = 0; goto free_pmboxq;
}
*mxri = rsrc_ext_cnt * rsrc_ext_size;
}
if (mvpi) { if (lpfc_sli4_get_avail_extnt_rsrc(phba,
LPFC_RSC_TYPE_FCOE_VPI,
&rsrc_ext_cnt,
&rsrc_ext_size)) {
rc = 0; goto free_pmboxq;
}
max_vpi = rsrc_ext_cnt * rsrc_ext_size;
/* Limit the max we support */ if (max_vpi > LPFC_MAX_VPI)
max_vpi = LPFC_MAX_VPI;
*mvpi = max_vpi;
}
}
} else { if (mrpi)
*mrpi = pmb->un.varRdConfig.max_rpi; if (arpi)
*arpi = pmb->un.varRdConfig.avail_rpi; if (mxri)
*mxri = pmb->un.varRdConfig.max_xri; if (axri)
*axri = pmb->un.varRdConfig.avail_xri; if (mvpi)
*mvpi = pmb->un.varRdConfig.max_vpi; if (avpi) { /* avail_vpi is only valid if link is up and ready */ if (phba->link_state == LPFC_HBA_READY)
*avpi = pmb->un.varRdConfig.avail_vpi; else
*avpi = pmb->un.varRdConfig.max_vpi;
}
}
/** * lpfc_max_rpi_show - Return maximum rpi * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the maximum rpi count in decimal or "Unknown". * * Description: * Calls lpfc_get_hba_info() asking for just the mrpi count. * If lpfc_get_hba_info() returns zero (failure) the buffer text is set * to "Unknown" and the buffer length is returned, therefore the caller * must check for "Unknown" in the buffer to detect a failure. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
uint32_t cnt;
/** * lpfc_used_rpi_show - Return maximum rpi minus available rpi * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: containing the used rpi count in decimal or "Unknown". * * Description: * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. * If lpfc_get_hba_info() returns zero (failure) the buffer text is set * to "Unknown" and the buffer length is returned, therefore the caller * must check for "Unknown" in the buffer to detect a failure. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_sli4_hba *sli4_hba; struct lpfc_max_cfg_param *max_cfg_param;
u32 cnt = 0, acnt = 0;
/** * lpfc_max_xri_show - Return maximum xri * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the maximum xri count in decimal or "Unknown". * * Description: * Calls lpfc_get_hba_info() asking for just the mrpi count. * If lpfc_get_hba_info() returns zero (failure) the buffer text is set * to "Unknown" and the buffer length is returned, therefore the caller * must check for "Unknown" in the buffer to detect a failure. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
uint32_t cnt;
/** * lpfc_used_xri_show - Return maximum xpi minus the available xpi * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the used xri count in decimal or "Unknown". * * Description: * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. * If lpfc_get_hba_info() returns zero (failure) the buffer text is set * to "Unknown" and the buffer length is returned, therefore the caller * must check for "Unknown" in the buffer to detect a failure. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_sli4_hba *sli4_hba; struct lpfc_max_cfg_param *max_cfg_param;
u32 cnt = 0, acnt = 0;
/** * lpfc_max_vpi_show - Return maximum vpi * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the maximum vpi count in decimal or "Unknown". * * Description: * Calls lpfc_get_hba_info() asking for just the mvpi count. * If lpfc_get_hba_info() returns zero (failure) the buffer text is set * to "Unknown" and the buffer length is returned, therefore the caller * must check for "Unknown" in the buffer to detect a failure. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
uint32_t cnt;
/** * lpfc_used_vpi_show - Return maximum vpi minus the available vpi * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the used vpi count in decimal or "Unknown". * * Description: * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. * If lpfc_get_hba_info() returns zero (failure) the buffer text is set * to "Unknown" and the buffer length is returned, therefore the caller * must check for "Unknown" in the buffer to detect a failure. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_sli4_hba *sli4_hba; struct lpfc_max_cfg_param *max_cfg_param;
u32 cnt = 0, acnt = 0;
/** * lpfc_npiv_info_show - Return text about NPIV support for the adapter * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: text that must be interpreted to determine if npiv is supported. * * Description: * Buffer will contain text indicating npiv is not suppoerted on the port, * the port is an NPIV physical port, or it is an npiv virtual port with * the id of the vport. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
if (!(phba->max_vpi)) return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); if (vport->port_type == LPFC_PHYSICAL_PORT) return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
}
/** * lpfc_poll_show - Return text about poll support for the adapter * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the cfg_poll in hex. * * Notes: * cfg_poll should be a lpfc_polling_flags type. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_poll_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
/** * lpfc_poll_store - Set the value of cfg_poll for the adapter * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: one or more lpfc_polling_flags values. * @count: not used. * * Notes: * buf contents converted to integer and checked for a valid value. * * Returns: * -EINVAL if the buffer connot be converted or is out of range * length of the buf on success
**/ static ssize_t
lpfc_poll_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
uint32_t creg_val;
uint32_t old_val; int val=0;
if (!isdigit(buf[0])) return -EINVAL;
if (sscanf(buf, "%i", &val) != 1) return -EINVAL;
if ((val & 0x3) != val) return -EINVAL;
if (phba->sli_rev == LPFC_SLI_REV4)
val = 0;
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "3051 lpfc_poll changed from %d to %d\n",
phba->cfg_poll, val);
/** * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the formatted support level. * * Description: * Returns the maximum number of virtual functions a physical function can * support, 0 will be returned if called on virtual function. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_sriov_hw_max_virtfn_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
uint16_t max_nr_virtfn;
/** * lpfc_enable_bbcr_set: Sets an attribute value. * @phba: pointer to the adapter structure. * @val: integer attribute value. * * Description: * Validates the min and max values then sets the * adapter config field if in the valid range. prints error message * and does not set the parameter if invalid. * * Returns: * zero on success * -EINVAL if val is invalid
*/ static ssize_t
lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val)
{ if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3068 lpfc_enable_bbcr changed from %d to " "%d\n", phba->cfg_enable_bbcr, val);
phba->cfg_enable_bbcr = val; return 0;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0451 lpfc_enable_bbcr cannot set to %d, range is 0, " "1\n", val); return -EINVAL;
}
/* * lpfc_param_show - Return a cfg attribute value in decimal * * Description: * Macro that given an attr e.g. hba_queue_depth expands * into a function with the name lpfc_hba_queue_depth_show. * * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the attribute value in decimal. * * Returns: size of formatted string.
**/ #define lpfc_param_show(attr) \ static ssize_t \
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ char *buf) \
{ \ struct Scsi_Host *shost = class_to_shost(dev);\ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ struct lpfc_hba *phba = vport->phba;\ return scnprintf(buf, PAGE_SIZE, "%d\n",\
phba->cfg_##attr);\
}
/* * lpfc_param_hex_show - Return a cfg attribute value in hex * * Description: * Macro that given an attr e.g. hba_queue_depth expands * into a function with the name lpfc_hba_queue_depth_show * * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the attribute value in hexadecimal. * * Returns: size of formatted string.
**/ #define lpfc_param_hex_show(attr) \ static ssize_t \
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ char *buf) \
{ \ struct Scsi_Host *shost = class_to_shost(dev);\ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ struct lpfc_hba *phba = vport->phba;\
uint val = 0;\
val = phba->cfg_##attr;\ return scnprintf(buf, PAGE_SIZE, "%#x\n",\
phba->cfg_##attr);\
}
/* * lpfc_param_init - Initializes a cfg attribute * * Description: * Macro that given an attr e.g. hba_queue_depth expands * into a function with the name lpfc_hba_queue_depth_init. The macro also * takes a default argument, a minimum and maximum argument. * * lpfc_##attr##_init: Initializes an attribute. * @phba: pointer to the adapter structure. * @val: integer attribute value. * * Validates the min and max values then sets the adapter config field * accordingly, or uses the default if out of range and prints an error message. * * Returns: * zero on success * -EINVAL if default used
**/ #define lpfc_param_init(attr, default, minval, maxval) \ staticint \
lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
{ \ if (lpfc_rangecheck(val, minval, maxval)) {\
phba->cfg_##attr = val;\ return 0;\
}\
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ "0449 lpfc_"#attr" attribute cannot be set to %d, "\ "allowed range is ["#minval", "#maxval"]\n", val); \
phba->cfg_##attr = default;\ return -EINVAL;\
}
/* * lpfc_param_set - Set a cfg attribute value * * Description: * Macro that given an attr e.g. hba_queue_depth expands * into a function with the name lpfc_hba_queue_depth_set * * lpfc_##attr##_set: Sets an attribute value. * @phba: pointer to the adapter structure. * @val: integer attribute value. * * Description: * Validates the min and max values then sets the * adapter config field if in the valid range. prints error message * and does not set the parameter if invalid. * * Returns: * zero on success * -EINVAL if val is invalid
**/ #define lpfc_param_set(attr, default, minval, maxval) \ staticint \
lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
{ \ if (lpfc_rangecheck(val, minval, maxval)) {\
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ "3052 lpfc_"#attr" changed from %d to %d\n", \
phba->cfg_##attr, val); \
phba->cfg_##attr = val;\ return 0;\
}\
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ "0450 lpfc_"#attr" attribute cannot be set to %d, "\ "allowed range is ["#minval", "#maxval"]\n", val); \ return -EINVAL;\
}
/* * lpfc_param_store - Set a vport attribute value * * Description: * Macro that given an attr e.g. hba_queue_depth expands * into a function with the name lpfc_hba_queue_depth_store. * * lpfc_##attr##_store: Set an sttribute value. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: contains the attribute value in ascii. * @count: not used. * * Description: * Convert the ascii text number to an integer, then * use the lpfc_##attr##_set function to set the value. * * Returns: * -EINVAL if val is invalid or lpfc_##attr##_set() fails * length of buffer upon success.
**/ #define lpfc_param_store(attr) \ static ssize_t \
lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ constchar *buf, size_t count) \
{ \ struct Scsi_Host *shost = class_to_shost(dev);\ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ struct lpfc_hba *phba = vport->phba;\
uint val = 0;\ if (!isdigit(buf[0]))\ return -EINVAL;\ if (sscanf(buf, "%i", &val) != 1)\ return -EINVAL;\ if (lpfc_##attr##_set(phba, val) == 0) \ return strlen(buf);\ else \ return -EINVAL;\
}
/* * lpfc_vport_param_show - Return decimal formatted cfg attribute value * * Description: * Macro that given an attr e.g. hba_queue_depth expands * into a function with the name lpfc_hba_queue_depth_show * * lpfc_##attr##_show: prints the attribute value in decimal. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the attribute value in decimal. * * Returns: length of formatted string.
**/ #define lpfc_vport_param_show(attr) \ static ssize_t \
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ char *buf) \
{ \ struct Scsi_Host *shost = class_to_shost(dev);\ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
}
/* * lpfc_vport_param_hex_show - Return hex formatted attribute value * * Description: * Macro that given an attr e.g. * hba_queue_depth expands into a function with the name * lpfc_hba_queue_depth_show * * lpfc_##attr##_show: prints the attribute value in hexadecimal. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the attribute value in hexadecimal. * * Returns: length of formatted string.
**/ #define lpfc_vport_param_hex_show(attr) \ static ssize_t \
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ char *buf) \
{ \ struct Scsi_Host *shost = class_to_shost(dev);\ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
}
/* * lpfc_vport_param_init - Initialize a vport cfg attribute * * Description: * Macro that given an attr e.g. hba_queue_depth expands * into a function with the name lpfc_hba_queue_depth_init. The macro also * takes a default argument, a minimum and maximum argument. * * lpfc_##attr##_init: validates the min and max values then sets the * adapter config field accordingly, or uses the default if out of range * and prints an error message. * @phba: pointer to the adapter structure. * @val: integer attribute value. * * Returns: * zero on success * -EINVAL if default used
**/ #define lpfc_vport_param_init(attr, default, minval, maxval) \ staticint \
lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
{ \ if (lpfc_rangecheck(val, minval, maxval)) {\
vport->cfg_##attr = val;\ return 0;\
}\
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ "0423 lpfc_"#attr" attribute cannot be set to %d, "\ "allowed range is ["#minval", "#maxval"]\n", val); \
vport->cfg_##attr = default;\ return -EINVAL;\
}
/* * lpfc_vport_param_set - Set a vport cfg attribute * * Description: * Macro that given an attr e.g. hba_queue_depth expands * into a function with the name lpfc_hba_queue_depth_set * * lpfc_##attr##_set: validates the min and max values then sets the * adapter config field if in the valid range. prints error message * and does not set the parameter if invalid. * @phba: pointer to the adapter structure. * @val: integer attribute value. * * Returns: * zero on success * -EINVAL if val is invalid
**/ #define lpfc_vport_param_set(attr, default, minval, maxval) \ staticint \
lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
{ \ if (lpfc_rangecheck(val, minval, maxval)) {\
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ "3053 lpfc_"#attr \ " changed from %d (x%x) to %d (x%x)\n", \
vport->cfg_##attr, vport->cfg_##attr, \
val, val); \
vport->cfg_##attr = val;\ return 0;\
}\
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ "0424 lpfc_"#attr" attribute cannot be set to %d, "\ "allowed range is ["#minval", "#maxval"]\n", val); \ return -EINVAL;\
}
/* * lpfc_vport_param_store - Set a vport attribute * * Description: * Macro that given an attr e.g. hba_queue_depth * expands into a function with the name lpfc_hba_queue_depth_store * * lpfc_##attr##_store: convert the ascii text number to an integer, then * use the lpfc_##attr##_set function to set the value. * @cdev: class device that is converted into a Scsi_host. * @buf: contains the attribute value in decimal. * @count: not used. * * Returns: * -EINVAL if val is invalid or lpfc_##attr##_set() fails * length of buffer upon success.
**/ #define lpfc_vport_param_store(attr) \ static ssize_t \
lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ constchar *buf, size_t count) \
{ \ struct Scsi_Host *shost = class_to_shost(dev);\ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
uint val = 0;\ if (!isdigit(buf[0]))\ return -EINVAL;\ if (sscanf(buf, "%i", &val) != 1)\ return -EINVAL;\ if (lpfc_##attr##_set(vport, val) == 0) \ return strlen(buf);\ else \ return -EINVAL;\
}
/** * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) * of whether luns will be enabled or disabled * for Optimized Access Storage (OAS) operations. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * * Returns: * size of formatted string.
**/ static ssize_t
lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
/** * lpfc_oas_lun_state_store - Store the state (enabled or disabled) * of whether luns will be enabled or disabled * for Optimized Access Storage (OAS) operations. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * @count: Size of the data buffer. * * Returns: * -EINVAL count is invalid, invalid wwpn byte invalid * -EPERM oas is not supported by hba * value of count on success
**/ static ssize_t
lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; int val = 0;
/** * lpfc_oas_lun_status_show - Return the status of the Optimized Access * Storage (OAS) lun returned by the * lpfc_oas_lun_show function. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * * Returns: * size of formatted string.
**/ static ssize_t
lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) return -EFAULT;
/** * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage * (OAS) operations. * @phba: lpfc_hba pointer. * @vpt_wwpn: wwpn of the vport associated with the returned lun * @tgt_wwpn: wwpn of the target associated with the returned lun * @lun: the fc lun for setting oas state. * @oas_state: the oas state to be set to the lun. * @pri: priority * * Returns: * SUCCESS : 0 * -EPERM OAS is not enabled or not supported by this port. *
*/ static size_t
lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
uint8_t tgt_wwpn[], uint64_t lun,
uint32_t oas_state, uint8_t pri)
{
/** * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized * Access Storage (OAS) operations. * @phba: lpfc_hba pointer. * @vpt_wwpn: wwpn of the vport associated with the returned lun * @tgt_wwpn: wwpn of the target associated with the returned lun * @lun_status: status of the lun returned lun * @lun_pri: priority of the lun returned lun * * Returns the first or next lun enabled for OAS operations for the vport/target * specified. If a lun is found, its vport wwpn, target wwpn and status is * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. * * Return: * lun that is OAS enabled for the vport/target * NOT_OAS_ENABLED_LUN when no oas enabled lun found.
*/ static uint64_t
lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
uint8_t tgt_wwpn[], uint32_t *lun_status,
uint32_t *lun_pri)
{
uint64_t found_lun;
/** * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations * @phba: lpfc_hba pointer. * @vpt_wwpn: vport wwpn by reference. * @tgt_wwpn: target wwpn by reference. * @lun: the fc lun for setting oas state. * @oas_state: the oas state to be set to the oas_lun. * @pri: priority * * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) * a lun for OAS operations. * * Return: * SUCCESS: 0 * -ENOMEM: failed to enable an lun for OAS operations * -EPERM: OAS is not enabled
*/ static ssize_t
lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
uint8_t tgt_wwpn[], uint64_t lun,
uint32_t oas_state, uint8_t pri)
{
/** * lpfc_oas_lun_show - Return oas enabled luns from a chosen target * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * * This routine returns a lun enabled for OAS each time the function * is called. * * Returns: * SUCCESS: size of formatted string. * -EFAULT: target or vport wwpn was not set properly. * -EPERM: oas is not enabled.
**/ static ssize_t
lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
uint64_t oas_lun; int len = 0;
if (!phba->cfg_fof) return -EPERM;
if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) return -EFAULT;
if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) return -EFAULT;
len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun);
return len;
}
/** * lpfc_oas_lun_store - Sets the OAS state for lun * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * @count: size of the formatting string * * This function sets the OAS state for lun. Before this function is called, * the vport wwpn, target wwpn, and oas state need to be set. * * Returns: * SUCCESS: size of formatted string. * -EFAULT: target or vport wwpn was not set properly. * -EPERM: oas is not enabled. * size of formatted string.
**/ static ssize_t
lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
uint64_t scsi_lun;
uint32_t pri;
ssize_t rc;
if (!phba->cfg_fof) return -EPERM;
if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) return -EFAULT;
if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) return -EFAULT;
if (!isdigit(buf[0])) return -EINVAL;
if (sscanf(buf, "0x%llx", &scsi_lun) != 1) return -EINVAL;
pri = phba->cfg_oas_priority; if (pri == 0)
pri = phba->cfg_XLanePriority;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " "priority 0x%x with oas state %d\n",
wwn_to_u64(phba->cfg_oas_vpt_wwpn),
wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun,
pri, phba->cfg_oas_lun_state);
LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, "FCF Fast failover=1 Priority failover=2");
/* * lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of * aborted IO. * The range is [0,1]. Default value is 0 * 0, IO completes after ABTS issued (default). * 1, IO completes after receipt of ABTS response or timeout.
*/
LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion");
/* # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures # 0x0 = disabled, XRI/OXID use not tracked. # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent.
*/
LPFC_ATTR_R(enable_rrq, 2, 0, 2, "Enable RRQ functionality");
/* # lpfc_suppress_link_up: Bring link up at initialization # 0x0 = bring link up (issue MBX_INIT_LINK) # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) # 0x2 = never bring up link # Default value is 0.
*/
LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
LPFC_DELAY_INIT_LINK_INDEFINITELY, "Suppress Link Up at initialization");
/* # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear # until the timer expires. Value range is [0,255]. Default value is 30.
*/ staticint lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; staticint lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
module_param(lpfc_nodev_tmo, int, 0);
MODULE_PARM_DESC(lpfc_nodev_tmo, "Seconds driver will hold I/O waiting " "for a device to come back");
/** * lpfc_nodev_tmo_show - Return the hba dev loss timeout value * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the dev loss timeout in decimal. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
/** * lpfc_nodev_tmo_init - Set the hba nodev timeout value * @vport: lpfc vport structure pointer. * @val: contains the nodev timeout value. * * Description: * If the devloss tmo is already set then nodev tmo is set to devloss tmo, * a kernel error message is printed and zero is returned. * Else if val is in range then nodev tmo and devloss tmo are set to val. * Otherwise nodev tmo is set to the default value. * * Returns: * zero if already set or if val is in range * -EINVAL val out of range
**/ staticint
lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
{ if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; if (val != LPFC_DEF_DEVLOSS_TMO)
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0407 Ignoring lpfc_nodev_tmo module " "parameter because lpfc_devloss_tmo " "is set.\n"); return 0;
}
if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
vport->cfg_nodev_tmo = val;
vport->cfg_devloss_tmo = val; return 0;
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0400 lpfc_nodev_tmo attribute cannot be set to" " %d, allowed range is [%d, %d]\n",
val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; return -EINVAL;
}
/** * lpfc_update_rport_devloss_tmo - Update dev loss tmo value * @vport: lpfc vport structure pointer. * * Description: * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
**/ staticvoid
lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
{ struct lpfc_nodelist *ndlp; unsignedlong iflags; #if (IS_ENABLED(CONFIG_NVME_FC)) struct lpfc_nvme_rport *rport; struct nvme_fc_remote_port *remoteport = NULL; #endif
/** * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values * @vport: lpfc vport structure pointer. * @val: contains the tmo value. * * Description: * If the devloss tmo is already set or the vport dev loss tmo has changed * then a kernel error message is printed and zero is returned. * Else if val is in range then nodev tmo and devloss tmo are set to val. * Otherwise nodev tmo is set to the default value. * * Returns: * zero if already set or if val is in range * -EINVAL val out of range
**/ staticint
lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
{ if (vport->dev_loss_tmo_changed ||
(lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0401 Ignoring change to lpfc_nodev_tmo " "because lpfc_devloss_tmo is set.\n"); return 0;
} if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
vport->cfg_nodev_tmo = val;
vport->cfg_devloss_tmo = val; /* * For compat: set the fc_host dev loss so new rports * will get the value.
*/
fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
lpfc_update_rport_devloss_tmo(vport); return 0;
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0403 lpfc_nodev_tmo attribute cannot be set to " "%d, allowed range is [%d, %d]\n",
val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); return -EINVAL;
}
lpfc_vport_param_store(nodev_tmo)
static DEVICE_ATTR_RW(lpfc_nodev_tmo);
/* # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that # disappear until the timer expires. Value range is [0,255]. Default # value is 30.
*/
module_param(lpfc_devloss_tmo, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_devloss_tmo, "Seconds driver will hold I/O waiting " "for a device to come back");
lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
lpfc_vport_param_show(devloss_tmo)
/** * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit * @vport: lpfc vport structure pointer. * @val: contains the tmo value. * * Description: * If val is in a valid range then set the vport nodev tmo, * devloss tmo, also set the vport dev loss tmo changed flag. * Else a kernel error message is printed. * * Returns: * zero if val is in range * -EINVAL val out of range
**/ staticint
lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
{ if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
vport->cfg_nodev_tmo = val;
vport->cfg_devloss_tmo = val;
vport->dev_loss_tmo_changed = 1;
fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
lpfc_update_rport_devloss_tmo(vport); return 0;
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0404 lpfc_devloss_tmo attribute cannot be set to " "%d, allowed range is [%d, %d]\n",
val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); return -EINVAL;
}
/* * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs * lpfc_nvmet_mrq = 1 use a single RQ pair * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ *
*/
LPFC_ATTR_R(nvmet_mrq,
LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, "Specify number of RQ pairs for processing NVMET cmds");
/* * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post * to each NVMET RQ. Range 64 to 2048, default is 512.
*/
LPFC_ATTR_R(nvmet_mrq_post,
LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST,
LPFC_NVMET_RQE_DEF_COUNT, "Specify number of RQ buffers to initially post");
/* * lpfc_enable_fc4_type: Defines what FC4 types are supported. * Supported Values: 1 - register just FCP * 3 - register both FCP and NVME * Supported values are [1,3]. Default value is 3
*/
LPFC_ATTR_R(enable_fc4_type, LPFC_DEF_ENBL_FC4_TYPE,
LPFC_ENABLE_FCP, LPFC_MAX_ENBL_FC4_TYPE, "Enable FC4 Protocol support - FCP / NVME");
/* # lpfc_log_verbose: Only turn this flag on if you are willing to risk being # deluged with LOTS of information. # You can set a bit mask to record specific types of verbose messages: # See lpfc_logmsh.h for definitions.
*/
LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, "Verbose logging bit-mask");
/* # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters # objects that have been registered with the nameserver after login.
*/
LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, "Deregister nameserver objects before LOGO");
/* # lun_queue_depth: This parameter is used to limit the number of outstanding # commands per FCP LUN.
*/
LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, "Max number of FCP commands we can queue to a specific LUN");
/* # tgt_queue_depth: This parameter is used to limit the number of outstanding # commands per target port. Value range is [10,65535]. Default value is 65535.
*/ static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH;
module_param(lpfc_tgt_queue_depth, uint, 0444);
MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth");
lpfc_vport_param_show(tgt_queue_depth);
lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH,
LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH);
/** * lpfc_tgt_queue_depth_set: Sets an attribute value. * @vport: lpfc vport structure pointer. * @val: integer attribute value. * * Description: Sets the parameter to the new value. * * Returns: * zero on success * -EINVAL if val is invalid
*/ staticint
lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val)
{ struct lpfc_nodelist *ndlp; unsignedlong iflags;
if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) return -EINVAL;
/* # hba_queue_depth: This parameter is used to limit the number of outstanding # commands per lpfc HBA. Value range is [32,8192]. If this parameter # value is greater than the maximum number of exchanges supported by the HBA, # then maximum number of exchanges supported by the HBA is used to determine # the hba_queue_depth.
*/
LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, "Max number of FCP commands we can queue to a lpfc HBA");
/* # peer_port_login: This parameter allows/prevents logins # between peer ports hosted on the same physical port. # When this parameter is set 0 peer ports of same physical port # are not allowed to login to each other. # When this parameter is set 1 peer ports of same physical port # are allowed to login to each other. # Default value of this parameter is 0.
*/
LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, "Allow peer ports on the same physical port to login to each " "other.");
/* # restrict_login: This parameter allows/prevents logins # between Virtual Ports and remote initiators. # When this parameter is not set (0) Virtual Ports will accept PLOGIs from # other initiators and will attempt to PLOGI all remote ports. # When this parameter is set (1) Virtual Ports will reject PLOGIs from # remote ports and will not attempt to PLOGI to other initiators. # This parameter does not restrict to the physical port. # This parameter does not restrict logins to Fabric resident remote ports. # Default value of this parameter is 1.
*/ staticint lpfc_restrict_login = 1;
module_param(lpfc_restrict_login, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_restrict_login, "Restrict virtual ports login to remote initiators.");
lpfc_vport_param_show(restrict_login);
/** * lpfc_restrict_login_init - Set the vport restrict login flag * @vport: lpfc vport structure pointer. * @val: contains the restrict login value. * * Description: * If val is not in a valid range then log a kernel error message and set * the vport restrict login to one. * If the port type is physical clear the restrict login flag and return. * Else set the restrict login flag to val. * * Returns: * zero if val is in range * -EINVAL val out of range
**/ staticint
lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
{ if (val < 0 || val > 1) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0422 lpfc_restrict_login attribute cannot " "be set to %d, allowed range is [0, 1]\n",
val);
vport->cfg_restrict_login = 1; return -EINVAL;
} if (vport->port_type == LPFC_PHYSICAL_PORT) {
vport->cfg_restrict_login = 0; return 0;
}
vport->cfg_restrict_login = val; return 0;
}
/** * lpfc_restrict_login_set - Set the vport restrict login flag * @vport: lpfc vport structure pointer. * @val: contains the restrict login value. * * Description: * If val is not in a valid range then log a kernel error message and set * the vport restrict login to one. * If the port type is physical and the val is not zero log a kernel * error message, clear the restrict login flag and return zero. * Else set the restrict login flag to val. * * Returns: * zero if val is in range * -EINVAL val out of range
**/ staticint
lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
{ if (val < 0 || val > 1) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0425 lpfc_restrict_login attribute cannot " "be set to %d, allowed range is [0, 1]\n",
val);
vport->cfg_restrict_login = 1; return -EINVAL;
} if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0468 lpfc_restrict_login must be 0 for " "Physical ports.\n");
vport->cfg_restrict_login = 0; return 0;
}
vport->cfg_restrict_login = val; return 0;
}
lpfc_vport_param_store(restrict_login); static DEVICE_ATTR_RW(lpfc_restrict_login);
/* # Some disk devices have a "select ID" or "select Target" capability. # From a protocol standpoint "select ID" usually means select the # Fibre channel "ALPA". In the FC-AL Profile there is an "informative # annex" which contains a table that maps a "select ID" (a number # between 0 and 7F) to an ALPA. By default, for compatibility with # older drivers, the lpfc driver scans this table from low ALPA to high # ALPA. # # Turning on the scan-down variable (on = 1, off = 0) will # cause the lpfc driver to use an inverted table, effectively # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. # # (Note: This "select ID" functionality is a LOOP ONLY characteristic # and will not work across a fabric. Also this parameter will take # effect only in the case when ALPA map is not available.)
*/
LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, "Start scanning for devices from highest ALPA to lowest");
/* # lpfc_topology: link topology for init link # 0x0 = attempt loop mode then point-to-point # 0x01 = internal loopback mode # 0x02 = attempt point-to-point mode only # 0x04 = attempt loop mode only # 0x06 = attempt point-to-point mode then loop # Set point-to-point mode if you want to run as an N_Port. # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. # Default value is 0.
*/
LPFC_ATTR(topology, 0, 0, 6, "Select Fibre Channel topology");
/** * lpfc_topology_store - Set the adapters topology field * @dev: class device that is converted into a scsi_host. * @attr:device attribute, not used. * @buf: buffer for passing information. * @count: size of the data buffer. * * Description: * If val is in a valid range then set the adapter's topology field and * issue a lip; if the lip fails reset the topology to the old value. * * If the value is not in range log a kernel error message and return an error. * * Returns: * zero if val is in range and lip okay * non-zero return value from lpfc_issue_lip() * -EINVAL val out of range
**/ static ssize_t
lpfc_topology_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; int val = 0; int nolip = 0; constchar *val_buf = buf; int err;
uint32_t prev_val;
u8 sli_family, if_type;
/** * lpfc_static_vport_show: Read callback function for * lpfc_static_vport sysfs file. * @dev: Pointer to class device object. * @attr: device attribute structure. * @buf: Data buffer. * * This function is the read call back function for * lpfc_static_vport sysfs file. The lpfc_static_vport * sysfs file report the mageability of the vport.
**/ static ssize_t
lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; if (vport->vport_flag & STATIC_VPORT)
sprintf(buf, "1\n"); else
sprintf(buf, "0\n");
return strlen(buf);
}
/* * Sysfs attribute to control the statistical data collection.
*/ static DEVICE_ATTR_RO(lpfc_static_vport);
/* # lpfc_link_speed: Link speed selection for initializing the Fibre Channel # connection. # Value range is [0,16]. Default value is 0.
*/ /** * lpfc_link_speed_store - Set the adapters link speed * @dev: Pointer to class device. * @attr: Unused. * @buf: Data buffer. * @count: Size of the data buffer. * * Description: * If val is in a valid range then set the adapter's link speed field and * issue a lip; if the lip fails reset the link speed to the old value. * * Notes: * If the value is not in range log a kernel error message and return an error. * * Returns: * zero if val is in range and lip okay. * non-zero return value from lpfc_issue_lip() * -EINVAL val out of range
**/ static ssize_t
lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; int val = LPFC_USER_LINK_SPEED_AUTO; int nolip = 0; constchar *val_buf = buf; int err;
uint32_t prev_val, if_type;
if (!isdigit(val_buf[0])) return -EINVAL; if (sscanf(val_buf, "%i", &val) != 1) return -EINVAL;
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "3055 lpfc_link_speed changed from %d to %d %s\n",
phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)");
if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) ||
((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) ||
((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) ||
((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "2879 lpfc_link_speed attribute cannot be set " "to %d. Speed is not supported by this port.\n",
val); return -EINVAL;
} if (val >= LPFC_USER_LINK_SPEED_16G &&
phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3112 lpfc_link_speed attribute cannot be set " "to %d. Speed is not supported in loop mode.\n",
val); return -EINVAL;
}
switch (val) { case LPFC_USER_LINK_SPEED_AUTO: case LPFC_USER_LINK_SPEED_1G: case LPFC_USER_LINK_SPEED_2G: case LPFC_USER_LINK_SPEED_4G: case LPFC_USER_LINK_SPEED_8G: case LPFC_USER_LINK_SPEED_16G: case LPFC_USER_LINK_SPEED_32G: case LPFC_USER_LINK_SPEED_64G:
prev_val = phba->cfg_link_speed;
phba->cfg_link_speed = val; if (nolip) return strlen(buf);
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0469 lpfc_link_speed attribute cannot be set to %d, " "allowed values are [%s]\n",
val, LPFC_LINK_SPEED_STRING); return -EINVAL;
/** * lpfc_link_speed_init - Set the adapters link speed * @phba: lpfc_hba pointer. * @val: link speed value. * * Description: * If val is in a valid range then set the adapter's link speed field. * * Notes: * If the value is not in range log a kernel error message, clear the link * speed and return an error. * * Returns: * zero if val saved. * -EINVAL val out of range
**/ staticint
lpfc_link_speed_init(struct lpfc_hba *phba, int val)
{ if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3111 lpfc_link_speed of %d cannot " "support loop mode, setting topology to default.\n",
val);
phba->cfg_topology = 0;
}
switch (val) { case LPFC_USER_LINK_SPEED_AUTO: case LPFC_USER_LINK_SPEED_1G: case LPFC_USER_LINK_SPEED_2G: case LPFC_USER_LINK_SPEED_4G: case LPFC_USER_LINK_SPEED_8G: case LPFC_USER_LINK_SPEED_16G: case LPFC_USER_LINK_SPEED_32G: case LPFC_USER_LINK_SPEED_64G:
phba->cfg_link_speed = val; return 0; default:
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0405 lpfc_link_speed attribute cannot " "be set to %d, allowed values are " "["LPFC_LINK_SPEED_STRING"]\n", val);
phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; return -EINVAL;
}
}
static DEVICE_ATTR_RW(lpfc_link_speed);
/* # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) # 1 = aer supported and enabled (default) # PCIe error reporting is always enabled by the PCI core, so this always # shows 1. # # N.B. Parts of LPFC_ATTR open-coded since some of the underlying # infrastructure (phba->cfg_aer_support) is gone.
*/ static uint lpfc_aer_support = 1;
module_param(lpfc_aer_support, uint, S_IRUGO);
MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support"); static ssize_t
lpfc_aer_support_show(struct device *dev, struct device_attribute *attr, char *buf)
{ return scnprintf(buf, PAGE_SIZE, "%d\n", lpfc_aer_support);
}
/** * lpfc_aer_support_store - Set the adapter for aer support * * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: containing enable or disable aer flag. * @count: unused variable. * * Description: * PCIe error reporting is enabled by the PCI core, so drivers don't need * to do anything. Retain this interface for backwards compatibility, * but do nothing. * * Returns: * length of the buf on success * -EINVAL if val out of range
**/ static ssize_t
lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ int val = 0;
if (!isdigit(buf[0])) return -EINVAL; if (sscanf(buf, "%i", &val) != 1) return -EINVAL;
dev_info_once(dev, "PCIe error reporting automatically enabled by the PCI core; sysfs write ignored\n"); return strlen(buf);
}
static DEVICE_ATTR_RW(lpfc_aer_support);
/** * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: containing flag 1 for aer cleanup state. * @count: unused variable. * * Description: * If the @buf contains 1, invokes the kernel AER helper routine * pci_aer_clear_nonfatal_status() to clean up the uncorrectable * error status register. * * Notes: * * Returns: * -EINVAL if the buf does not contain 1 * -EPERM if the OS cannot clear AER error status, i.e., when platform * firmware owns the AER Capability
**/ static ssize_t
lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; int val, rc = -1;
if (!isdigit(buf[0])) return -EINVAL; if (sscanf(buf, "%i", &val) != 1) return -EINVAL; if (val != 1) return -EINVAL;
rc = pci_aer_clear_nonfatal_status(phba->pcidev);
if (rc == 0) return strlen(buf); else return -EPERM;
}
/** * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions * * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: containing the string the number of vfs to be enabled. * @count: unused variable. * * Description: * When this api is called either through user sysfs, the driver shall * try to enable or disable SR-IOV virtual functions according to the * following: * * If zero virtual function has been enabled to the physical function, * the driver shall invoke the pci enable virtual function api trying * to enable the virtual functions. If the nr_vfn provided is greater * than the maximum supported, the maximum virtual function number will * be used for invoking the api; otherwise, the nr_vfn provided shall * be used for invoking the api. If the api call returned success, the * actual number of virtual functions enabled will be set to the driver * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver * cfg_sriov_nr_virtfn remains zero. * * If none-zero virtual functions have already been enabled to the * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, * -EINVAL will be returned and the driver does nothing; * * If the nr_vfn provided is zero and none-zero virtual functions have * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the * disabling virtual function api shall be invoded to disable all the * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to * zero. Otherwise, if zero virtual function has been enabled, do * nothing. * * Returns: * length of the buf on success if val is in range the intended mode * is supported. * -EINVAL if val out of range or intended mode is not supported.
**/ static ssize_t
lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; struct pci_dev *pdev = phba->pcidev; int val = 0, rc = -EINVAL;
/* Sanity check on user data */ if (!isdigit(buf[0])) return -EINVAL; if (sscanf(buf, "%i", &val) != 1) return -EINVAL; if (val < 0) return -EINVAL;
/** * lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade * * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: containing the string the number of vfs to be enabled. * @count: unused variable. * * Description: * * Returns: * length of the buf on success if val is in range the intended mode * is supported. * -EINVAL if val out of range or intended mode is not supported.
**/ static ssize_t
lpfc_request_firmware_upgrade_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; int val = 0, rc;
/* Sanity check on user data */ if (!isdigit(buf[0])) return -EINVAL; if (sscanf(buf, "%i", &val) != 1) return -EINVAL; if (val != 1) return -EINVAL;
/** * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade * @phba: lpfc_hba pointer. * @val: 0 or 1. * * Description: * Set the initial Linux generic firmware upgrade enable or disable flag. * * Returns: * zero if val saved. * -EINVAL val out of range
**/ staticint
lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val)
{ if (val >= 0 && val <= 1) {
phba->cfg_request_firmware_upgrade = val; return 0;
} return -EINVAL;
} static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR,
lpfc_request_firmware_upgrade_show,
lpfc_request_firmware_upgrade_store);
/** * lpfc_force_rscn_store * * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: unused string * @count: unused variable. * * Description: * Force the switch to send a RSCN to all other NPorts in our zone * If we are direct connect pt2pt, build the RSCN command ourself * and send to the other NPort. Not supported for private loop. * * Returns: * 0 - on success * -EIO - if command is not sent
**/ static ssize_t
lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; int i;
i = lpfc_issue_els_rscn(vport, 0); if (i) return -EIO; return strlen(buf);
}
/* * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts * connected to the HBA. * * Value range is any ascii value
*/ staticint lpfc_force_rscn;
module_param(lpfc_force_rscn, int, 0644);
MODULE_PARM_DESC(lpfc_force_rscn, "Force an RSCN to be sent to all remote NPorts");
lpfc_param_show(force_rscn)
/** * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts * @phba: lpfc_hba pointer. * @val: unused value. * * Returns: * zero if val saved.
**/ staticint
lpfc_force_rscn_init(struct lpfc_hba *phba, int val)
{ return 0;
} static DEVICE_ATTR_RW(lpfc_force_rscn);
/** * lpfc_fcp_imax_store * * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: string with the number of fast-path FCP interrupts per second. * @count: unused variable. * * Description: * If val is in a valid range [636,651042], then set the adapter's * maximum number of fast-path FCP interrupts per second. * * Returns: * length of the buf on success if val is in range the intended mode * is supported. * -EINVAL if val out of range or intended mode is not supported.
**/ static ssize_t
lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_eq_intr_info *eqi;
uint32_t usdelay; int val = 0, i;
/* fcp_imax is only valid for SLI4 */ if (phba->sli_rev != LPFC_SLI_REV4) return -EINVAL;
/* Sanity check on user data */ if (!isdigit(buf[0])) return -EINVAL; if (sscanf(buf, "%i", &val) != 1) return -EINVAL;
/* * Value range for the HBA is [5000,5000000] * The value for each EQ depends on how many EQs are configured. * Allow value == 0
*/ if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) return -EINVAL;
for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT)
lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT,
usdelay);
return strlen(buf);
}
/* # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second # for the HBA. # # Value range is [5,000 to 5,000,000]. Default value is 50,000.
*/ staticint lpfc_fcp_imax = LPFC_DEF_IMAX;
module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(lpfc_fcp_imax, "Set the maximum number of FCP interrupts per second per HBA");
lpfc_param_show(fcp_imax)
/** * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable * @phba: lpfc_hba pointer. * @val: link speed value. * * Description: * If val is in a valid range [636,651042], then initialize the adapter's * maximum number of fast-path FCP interrupts per second. * * Returns: * zero if val saved. * -EINVAL val out of range
**/ staticint
lpfc_fcp_imax_init(struct lpfc_hba *phba, int val)
{ if (phba->sli_rev != LPFC_SLI_REV4) {
phba->cfg_fcp_imax = 0; return 0;
}
if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) ||
(val == 0)) {
phba->cfg_fcp_imax = val; return 0;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3016 lpfc_fcp_imax: %d out of range, using default\n",
val);
phba->cfg_fcp_imax = LPFC_DEF_IMAX;
return 0;
}
static DEVICE_ATTR_RW(lpfc_fcp_imax);
/** * lpfc_cq_max_proc_limit_store * * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: string with the cq max processing limit of cqes * @count: unused variable. * * Description: * If val is in a valid range, then set value on each cq * * Returns: * The length of the buf: if successful * -ERANGE: if val is not in the valid range * -EINVAL: if bad value format or intended mode is not supported.
**/ static ssize_t
lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_queue *eq, *cq; unsignedlong val; int i;
/* cq_max_proc_limit is only valid for SLI4 */ if (phba->sli_rev != LPFC_SLI_REV4) return -EINVAL;
/* Sanity check on user data */ if (!isdigit(buf[0])) return -EINVAL; if (kstrtoul(buf, 0, &val)) return -EINVAL;
if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) return -ERANGE;
phba->cfg_cq_max_proc_limit = (uint32_t)val;
/* set the values on the cq's */ for (i = 0; i < phba->cfg_irq_chann; i++) { /* Get the EQ corresponding to the IRQ vector */
eq = phba->sli4_hba.hba_eq_hdl[i].eq; if (!eq) continue;
/* * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an * itteration of CQ processing.
*/ staticint lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT;
module_param(lpfc_cq_max_proc_limit, int, 0644);
MODULE_PARM_DESC(lpfc_cq_max_proc_limit, "Set the maximum number CQEs processed in an iteration of " "CQ processing");
lpfc_param_show(cq_max_proc_limit)
/* * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a * single handler call which should request a polled completion rather * than re-enabling interrupts.
*/
LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL,
LPFC_CQ_MIN_THRESHOLD_TO_POLL,
LPFC_CQ_MAX_THRESHOLD_TO_POLL, "CQE Processing Threshold to enable Polling");
/** * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit * @phba: lpfc_hba pointer. * @val: entry limit * * Description: * If val is in a valid range, then initialize the adapter's maximum * value. * * Returns: * Always returns 0 for success, even if value not always set to * requested value. If value out of range or not supported, will fall * back to default.
**/ staticint
lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val)
{
phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT;
if (phba->sli_rev != LPFC_SLI_REV4) return 0;
if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) {
phba->cfg_cq_max_proc_limit = val; return 0;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0371 lpfc_cq_max_proc_limit: %d out of range, using " "default\n",
phba->cfg_cq_max_proc_limit);
return 0;
}
static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit);
/** * lpfc_fcp_cpu_map_show - Display current driver CPU affinity * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains text describing the state of the link. * * Returns: size of formatted string.
**/ static ssize_t
lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_vector_map_info *cpup; int len = 0;
if ((phba->sli_rev != LPFC_SLI_REV4) ||
(phba->intr_type != MSIX)) return len;
switch (phba->cfg_fcp_cpu_map) { case 0:
len += scnprintf(buf + len, PAGE_SIZE-len, "fcp_cpu_map: No mapping (%d)\n",
phba->cfg_fcp_cpu_map); return len; case 1:
len += scnprintf(buf + len, PAGE_SIZE-len, "fcp_cpu_map: HBA centric mapping (%d): " "%d of %d CPUs online from %d possible CPUs\n",
phba->cfg_fcp_cpu_map, num_online_cpus(),
num_present_cpus(),
phba->sli4_hba.num_possible_cpu); break;
}
while (phba->sli4_hba.curr_disp_cpu <
phba->sli4_hba.num_possible_cpu) {
cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu];
/* display max number of CPUs keeping some margin */ if (phba->sli4_hba.curr_disp_cpu <
phba->sli4_hba.num_possible_cpu &&
(len >= (PAGE_SIZE - 64))) {
len += scnprintf(buf + len,
PAGE_SIZE - len, "more...\n"); break;
}
}
if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu)
phba->sli4_hba.curr_disp_cpu = 0;
return len;
}
/** * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: one or more lpfc_polling_flags values. * @count: not used. * * Returns: * -EINVAL - Not implemented yet.
**/ static ssize_t
lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, constchar *buf, size_t count)
{ return -EINVAL;
}
/* # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors # for the HBA. # # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). # 0 - Do not affinitze IRQ vectors # 1 - Affintize HBA vectors with respect to each HBA # (start with CPU0 for each HBA) # This also defines how Hardware Queues are mapped to specific CPUs.
*/ staticint lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP;
module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(lpfc_fcp_cpu_map, "Defines how to map CPUs to IRQ vectors per HBA");
/** * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable * @phba: lpfc_hba pointer. * @val: link speed value. * * Description: * If val is in a valid range [0-2], then affinitze the adapter's * MSIX vectors. * * Returns: * zero if val saved. * -EINVAL val out of range
**/ staticint
lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val)
{ if (phba->sli_rev != LPFC_SLI_REV4) {
phba->cfg_fcp_cpu_map = 0; return 0;
}
if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) {
phba->cfg_fcp_cpu_map = val; return 0;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3326 lpfc_fcp_cpu_map: %d out of range, using " "default\n", val);
phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP;
return 0;
}
static DEVICE_ATTR_RW(lpfc_fcp_cpu_map);
/* # lpfc_fcp_class: Determines FC class to use for the FCP protocol. # Value range is [2,3]. Default value is 3.
*/
LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, "Select Fibre Channel class of service for FCP sequences");
/* # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range # is [0,1]. Default value is 1.
*/
LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1, "Use ADISC on rediscovery to authenticate FCP devices");
/* # lpfc_first_burst_size: First burst size to use on the NPorts # that support first burst. # Value range is [0,65536]. Default value is 0.
*/
LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, "First burst size for Targets that support first burst");
/* * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. * When the driver is configured as an NVME target, this value is * communicated to the NVME initiator in the PRLI response. It is * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support * parameters are set and the target is sending the PRLI RSP. * Parameter supported on physical port only - no NPIV support. * Value range is [0,65536]. Default value is 0.
*/
LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, "NVME Target mode first burst size in 512B increments.");
/* * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. * For the Initiator (I), enabling this parameter means that an NVMET * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be * processed by the initiator for subsequent NVME FCP IO. * Currently, this feature is not supported on the NVME target * Value range is [0,1]. Default value is 0 (disabled).
*/
LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, "Enable First Burst feature for NVME Initiator.");
/* # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue # depth. Default value is 0. When the value of this parameter is zero the # SCSI command completion time is not used for controlling I/O queue depth. When # the parameter is set to a non-zero value, the I/O queue depth is controlled # to limit the I/O completion time to the parameter value. # The value is set in milliseconds.
*/
LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, "Use command completion time to control queue depth");
/* # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value # range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
/* # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature # range is [0,1]. Default value is 1.
*/
LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing");
/* * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds * range is [0,1]. Default value is 0. * For [0], FCP commands are issued to Work Queues based on upper layer * hardware queue index. * For [1], FCP commands are issued to a Work Queue associated with the * current CPU. * * LPFC_FCP_SCHED_BY_HDWQ == 0 * LPFC_FCP_SCHED_BY_CPU == 1 * * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu * affinity for FCP/NVME I/Os through Work Queues associated with the current * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os * through WQs will be used.
*/
LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU,
LPFC_FCP_SCHED_BY_HDWQ,
LPFC_FCP_SCHED_BY_CPU, "Determine scheduling algorithm for " "issuing commands [0] - Hardware Queue, [1] - Current CPU");
/* * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN * range is [0,1]. Default value is 0. * For [0], GID_FT is used for NameServer queries after RSCN (default) * For [1], GID_PT is used for NameServer queries after RSCN *
*/
LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT,
LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, "Determine algorithm NameServer queries after RSCN " "[0] - GID_FT, [1] - GID_PT");
/* # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior # range is [0,1]. Default value is 0. # For [0], bus reset issues target reset to ALL devices # For [1], bus reset issues target reset to non-FCP2 devices
*/
LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset");
/* # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing # cr_delay (msec) or cr_count outstanding commands. cr_delay can take # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay # is 0. Default value of cr_count is 1. The cr_count feature is disabled if # cr_delay is set to 0.
*/
LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " "interrupt response is generated");
LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " "interrupt response is generated");
/* # lpfc_multi_ring_support: Determines how many rings to spread available # cmd/rsp IOCB entries across. # Value range is [1,2]. Default value is 1.
*/
LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " "SLI rings to spread IOCB entries across");
/* # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this # identifies what rctl value to configure the additional ring for. # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
*/
LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
255, "Identifies RCTL for additional ring configuration");
/* # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this # identifies what type value to configure the additional ring for. # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
*/
LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
255, "Identifies TYPE for additional ring configuration");
/* # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN # 0 = SmartSAN functionality disabled (default) # 1 = SmartSAN functionality enabled # This parameter will override the value of lpfc_fdmi_on module parameter. # Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality");
/* # lpfc_fdmi_on: Controls FDMI support. # 0 No FDMI support # 1 Traditional FDMI support (default) # Traditional FDMI support means the driver will assume FDMI-2 support; # however, if that fails, it will fallback to FDMI-1. # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of # lpfc_fdmi_on. # Value range [0,1]. Default value is 1.
*/
LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support");
/* # Specifies the maximum number of ELS cmds we can have outstanding (for # discovery). Value range is [1,64]. Default value = 32.
*/
LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " "during discovery");
/* # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that # will be scanned by the SCSI midlayer when sequential scanning is # used; and is also the highest LUN ID allowed when the SCSI midlayer # parses REPORT_LUN responses. The lpfc driver has no LUN count or # LUN ID limit, but the SCSI midlayer requires this field for the uses # above. The lpfc driver limits the default value to 255 for two reasons. # As it bounds the sequential scan loop, scanning for thousands of luns # on a target can take minutes of wall clock time. Additionally, # there are FC targets, such as JBODs, that only recognize 8-bits of # LUN ID. When they receive a value greater than 8 bits, they chop off # the high order bits. In other words, they see LUN IDs 0, 256, 512, # and so on all as LUN ID 0. This causes the linux kernel, which sees # valid responses at each of the LUN IDs, to believe there are multiple # devices present, when in fact, there is only 1. # A customer that is aware of their target behaviors, and the results as # indicated above, is welcome to increase the lpfc_max_luns value. # As mentioned, this value is not used by the lpfc driver, only the # SCSI midlayer. # Value range is [0,65535]. Default value is 255. # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
*/
LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID");
/* # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. # Value range is [1,255], default value is 10.
*/
LPFC_ATTR_RW(poll_tmo, 10, 1, 255, "Milliseconds driver will wait between polling FCP ring");
/* # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands # to complete in seconds. Value range is [5,180], default value is 60.
*/
LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, "Maximum time to wait for task management commands to complete"); /* # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that # support this feature # 0 = MSI disabled # 1 = MSI enabled # 2 = MSI-X enabled (default) # Value range is [0,2]. Default value is 2.
*/
LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " "MSI-X (2), if possible");
/* * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs * * 0 = NVME OAS disabled * 1 = NVME OAS enabled * * Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_RW(nvme_oas, 0, 0, 1, "Use OAS bit on NVME IOs");
/* * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs * * 0 = Put NVME Command in SGL * 1 = Embed NVME Command in WQE (unless G7) * 2 = Embed NVME Command in WQE (force) * * Value range is [0,2]. Default value is 1.
*/
LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, "Embed NVME Command in WQE");
/* * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues * the driver will advertise it supports to the SCSI layer. * * 0 = Set nr_hw_queues by the number of CPUs or HW queues. * 1,256 = Manually specify nr_hw_queue value to be advertised, * * Value range is [0,256]. Default value is 8.
*/
LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF,
LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, "Set the number of SCSI Queues advertised");
/* * lpfc_hdw_queue: Set the number of Hardware Queues the driver * will advertise it supports to the NVME and SCSI layers. This also * will map to the number of CQ/WQ pairs the driver will create. * * The NVME Layer will try to create this many, plus 1 administrative * hardware queue. The administrative queue will always map to WQ 0 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. * * 0 = Configure the number of hdw queues to the number of active CPUs. * 1,256 = Manually specify how many hdw queues to use. * * Value range is [0,256]. Default value is 0.
*/
LPFC_ATTR_R(hdw_queue,
LPFC_HBA_HDWQ_DEF,
LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, "Set the number of I/O Hardware Queues");
if (phba->irq_chann_mode == NUMA_MODE) { /* Check if we're a NUMA architecture */
numa_node = dev_to_node(&phba->pcidev->dev); if (numa_node == NUMA_NO_NODE) {
phba->irq_chann_mode = NORMAL_MODE; return;
}
}
for_each_possible_cpu(cpu) { switch (phba->irq_chann_mode) { case NUMA_MODE: if (cpu_to_node(cpu) == numa_node)
cpumask_set_cpu(cpu, aff_mask); break; case NHT_MODE:
sibling_mask = topology_sibling_cpumask(cpu);
first_cpu = cpumask_first(sibling_mask); if (first_cpu < nr_cpu_ids)
cpumask_set_cpu(first_cpu, aff_mask); break; default: break;
}
}
} #endif
staticvoid
lpfc_assign_default_irq_chann(struct lpfc_hba *phba)
{ #if IS_ENABLED(CONFIG_X86) switch (boot_cpu_data.x86_vendor) { case X86_VENDOR_AMD: /* If AMD architecture, then default is NUMA_MODE */
phba->irq_chann_mode = NUMA_MODE; break; case X86_VENDOR_INTEL: /* If Intel architecture, then default is no hyperthread mode */
phba->irq_chann_mode = NHT_MODE; break; default:
phba->irq_chann_mode = NORMAL_MODE; break;
}
lpfc_cpumask_irq_mode_init(phba); #else
phba->irq_chann_mode = NORMAL_MODE; #endif
}
/* * lpfc_irq_chann: Set the number of IRQ vectors that are available * for Hardware Queues to utilize. This also will map to the number * of EQ / MSI-X vectors the driver will create. This should never be * more than the number of Hardware Queues * * 0 = Configure number of IRQ Channels to: * if AMD architecture, number of CPUs on HBA's NUMA node * if Intel architecture, number of physical CPUs. * otherwise, number of active CPUs. * [1,256] = Manually specify how many IRQ Channels to use. * * Value range is [0,256]. Default value is [0].
*/ static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF;
module_param(lpfc_irq_chann, uint, 0444);
MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate");
/* lpfc_irq_chann_init - Set the hba irq_chann initial value * @phba: lpfc_hba pointer. * @val: contains the initial value * * Description: * Validates the initial value is within range and assigns it to the * adapter. If not in range, an error message is posted and the * default value is assigned. * * Returns: * zero if value is in range and is set * -EINVAL if value was out of range
**/ staticint
lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val)
{ conststruct cpumask *aff_mask;
/* Check if default setting was passed */ if (val == LPFC_IRQ_CHANN_DEF &&
phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF &&
phba->sli_rev == LPFC_SLI_REV4)
lpfc_assign_default_irq_chann(phba);
if (phba->irq_chann_mode != NORMAL_MODE) {
aff_mask = &phba->sli4_hba.irq_aff_mask;
if (cpumask_empty(aff_mask)) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8533 Could not identify CPUS for " "mode %d, ignoring\n",
phba->irq_chann_mode);
phba->irq_chann_mode = NORMAL_MODE;
phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF;
} else {
phba->cfg_irq_chann = cpumask_weight(aff_mask);
/* If no hyperthread mode, then set hdwq count to * aff_mask weight as well
*/ if (phba->irq_chann_mode == NHT_MODE)
phba->cfg_hdw_queue = phba->cfg_irq_chann;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8543 lpfc_irq_chann set to %u " "(mode: %d)\n", phba->cfg_irq_chann,
phba->irq_chann_mode);
}
} else { if (val > LPFC_IRQ_CHANN_MAX) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8545 lpfc_irq_chann attribute cannot " "be set to %u, allowed range is " "[%u,%u]\n",
val,
LPFC_IRQ_CHANN_MIN,
LPFC_IRQ_CHANN_MAX);
phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; return -EINVAL;
} if (phba->sli_rev == LPFC_SLI_REV4) {
phba->cfg_irq_chann = val;
} else {
phba->cfg_irq_chann = 2;
phba->cfg_hdw_queue = 1;
}
}
return 0;
}
/** * lpfc_irq_chann_show - Display value of irq_chann * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains a string with the list sizes * * Returns: size of formatted string.
**/ static ssize_t
lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba;
/* # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. # 0 = HBA resets disabled # 1 = HBA resets enabled (default) # 2 = HBA reset via PCI bus reset enabled # Value range is [0,2]. Default value is 1.
*/
LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver.");
/* # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. # 0 = HBA Heartbeat disabled # 1 = HBA Heartbeat enabled (default) # Value range is [0,1]. Default value is 1.
*/
LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
/* # lpfc_EnableXLane: Enable Express Lane Feature # 0x0 Express Lane Feature disabled # 0x1 Express Lane Feature enabled # Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature.");
/* # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) # Value range is [0x0,0x7f]. Default value is 0
*/
LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
/* # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) # 0 = BlockGuard disabled (default) # 1 = BlockGuard enabled # Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
/* # lpfc_prot_mask: # - Bit mask of host protection capabilities used to register with the # SCSI mid-layer # - Only meaningful if BG is turned on (lpfc_enable_bg=1). # - Allows you to ultimately specify which profiles to use # - Default will result in registering capabilities for all profiles. # - SHOST_DIF_TYPE1_PROTECTION 1 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection # - SHOST_DIX_TYPE0_PROTECTION 8 # HBA supports DIX Type 0: Host to HBA protection only # - SHOST_DIX_TYPE1_PROTECTION 16 # HBA supports DIX Type 1: Host to HBA Type 1 protection #
*/
LPFC_ATTR(prot_mask,
(SHOST_DIF_TYPE1_PROTECTION |
SHOST_DIX_TYPE0_PROTECTION |
SHOST_DIX_TYPE1_PROTECTION),
0,
(SHOST_DIF_TYPE1_PROTECTION |
SHOST_DIX_TYPE0_PROTECTION |
SHOST_DIX_TYPE1_PROTECTION), "T10-DIF host protection capabilities mask");
/* # lpfc_prot_guard: # - Bit mask of protection guard types to register with the SCSI mid-layer # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum # - Allows you to ultimately specify which profiles to use # - Default will result in registering capabilities for all guard types #
*/
LPFC_ATTR(prot_guard,
SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, "T10-DIF host protection guard type");
/* * Delay initial NPort discovery when Clean Address bit is cleared in * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. * This parameter can have value 0 or 1. * When this parameter is set to 0, no delay is added to the initial * discovery. * When this parameter is set to non-zero value, initial Nport discovery is * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC * accept and FCID/Fabric name/Fabric portname is changed. * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion * when Clean Address bit is cleared in FLOGI/FDISC * accept and FCID/Fabric name/Fabric portname is changed. * Default value is 0.
*/
LPFC_ATTR(delay_discovery, 0, 0, 1, "Delay NPort discovery when Clean Address bit is cleared.");
/* * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count * This value can be set to values between 64 and 4096. The default value * is 64, but may be increased to allow for larger Max I/O sizes. The scsi * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). * Because of the additional overhead involved in setting up T10-DIF, * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 * and will be limited to 512 if BlockGuard is enabled under SLI3.
*/ static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT;
module_param(lpfc_sg_seg_cnt, uint, 0444);
MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count");
/** * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes * configured for the adapter * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains a string with the list sizes * * Returns: size of formatted string.
**/ static ssize_t
lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, char *buf)
{ struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; int len;
len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n",
phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt);
/** * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value * @phba: lpfc_hba pointer. * @val: contains the initial value * * Description: * Validates the initial value is within range and assigns it to the * adapter. If not in range, an error message is posted and the * default value is assigned. * * Returns: * zero if value is in range and is set * -EINVAL if value was out of range
**/ staticint
lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val)
{ if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) {
phba->cfg_sg_seg_cnt = val; return 0;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0409 lpfc_sg_seg_cnt attribute cannot be set to %d, " "allowed range is [%d, %d]\n",
val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT);
phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; return -EINVAL;
}
/* * lpfc_enable_mds_diags: Enable MDS Diagnostics * 0 = MDS Diagnostics disabled (default) * 1 = MDS Diagnostics enabled * Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics");
/* * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size * 0 = Disable firmware logging (default) * [1-4] = Multiple of 1/4th Mb of host memory for FW logging * Value range [0..4]. Default value is 0
*/
LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging");
lpfc_param_show(ras_fwlog_buffsize);
static ssize_t
lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val)
{ int ret = 0; enum ras_state state;
if (!lpfc_rangecheck(val, 0, 4)) return -EINVAL;
if (phba->cfg_ras_fwlog_buffsize == val) return 0;
if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) return -EINVAL;
spin_lock_irq(&phba->ras_fwlog_lock);
state = phba->ras_fwlog.state;
spin_unlock_irq(&phba->ras_fwlog_lock);
if (state == REG_INPROGRESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " "registration is in progress\n"); return -EBUSY;
}
/* For disable logging: stop the logs and free the DMA. * For ras_fwlog_buffsize size change we still need to free and * reallocate the DMA in lpfc_sli4_ras_fwlog_init.
*/
phba->cfg_ras_fwlog_buffsize = val; if (state == ACTIVE) {
lpfc_ras_stop_fwlog(phba);
lpfc_sli4_ras_dma_free(phba);
}
lpfc_sli4_ras_init(phba); if (phba->ras_fwlog.ras_enabled)
ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
LPFC_RAS_ENABLE_LOGGING); return ret;
}
/* * lpfc_ras_fwlog_level: Firmware logging verbosity level * Valid only if firmware logging is enabled * 0(Least Verbosity) 4 (most verbosity) * Value range is [0..4]. Default value is 0
*/
LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level");
/* * lpfc_ras_fwlog_func: Firmware logging enabled on function number * Default function which has RAS support : 0 * Value Range is [0..3]. * FW logging is a global action and enablement is via a specific * port.
*/
LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 3, "Firmware Logging Enabled on Function");
/* * lpfc_enable_bbcr: Enable BB Credit Recovery * 0 = BB Credit Recovery disabled * 1 = BB Credit Recovery enabled (default) * Value range is [0,1]. Default value is 1.
*/
LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery");
int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail */
module_param(lpfc_use_cgn_signal, int, 0444);
MODULE_PARM_DESC(lpfc_use_cgn_signal, "Use Congestion signaling if available");
/* * lpfc_enable_dpp: Enable DPP on G7 * 0 = DPP on G7 disabled * 1 = DPP on G7 enabled (default) * Value range is [0,1]. Default value is 1.
*/
LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push");
/* * lpfc_enable_mi: Enable FDMI MIB * 0 = disabled * 1 = enabled (default) * Value range is [0,1].
*/
LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI");
/* * lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if * either vmid_app_header or vmid_priority_tagging is enabled. * 4 - 255 = vmid support enabled for 4-255 VMs * Value range is [4,255].
*/
LPFC_ATTR_R(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID, "Maximum number of VMs supported");
/* * lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours * 0 = Timeout is disabled * Value range is [0,24].
*/
LPFC_ATTR_R(vmid_inactivity_timeout, 4, 0, 24, "Inactivity timeout in hours");
/* * lpfc_vmid_app_header: Enable App Header VMID support * 0 = Support is disabled (default) * 1 = Support is enabled * Value range is [0,1].
*/
LPFC_ATTR_R(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE,
LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE, "Enable App Header VMID support");
/* * lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support * 0 = Support is disabled (default) * 1 = Allow supported targets only * 2 = Allow all targets * Value range is [0,2].
*/
LPFC_ATTR_R(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE,
LPFC_VMID_PRIO_TAG_DISABLE,
LPFC_VMID_PRIO_TAG_ALL_TARGETS, "Enable Priority Tagging VMID support");
/** * sysfs_ctlreg_write - Write method for writing to ctlreg * @filp: open sysfs file * @kobj: kernel kobject that contains the kernel class device. * @bin_attr: kernel attributes passed to us. * @buf: contains the data to be written to the adapter IOREG space. * @off: offset into buffer to beginning of data. * @count: bytes to transfer. * * Description: * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. * Uses the adapter io control registers to send buf contents to the adapter. * * Returns: * -ERANGE off and count combo out of range * -EINVAL off, count or buff address invalid * -EPERM adapter is offline * value of count, buf contents written
**/ static ssize_t
sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, conststruct bin_attribute *bin_attr, char *buf, loff_t off, size_t count)
{
size_t buf_off; struct device *dev = container_of(kobj, struct device, kobj); struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
if (phba->sli_rev >= LPFC_SLI_REV4) return -EPERM;
if ((off + count) > FF_REG_AREA_SIZE) return -ERANGE;
/** * sysfs_mbox_write - Write method for writing information via mbox * @filp: open sysfs file * @kobj: kernel kobject that contains the kernel class device. * @bin_attr: kernel attributes passed to us. * @buf: contains the data to be written to sysfs mbox. * @off: offset into buffer to beginning of data. * @count: bytes to transfer. * * Description: * Deprecated function. All mailbox access from user space is performed via the * bsg interface. * * Returns: * -EPERM operation not permitted
**/ static ssize_t
sysfs_mbox_write(struct file *filp, struct kobject *kobj, conststruct bin_attribute *bin_attr, char *buf, loff_t off, size_t count)
{ return -EPERM;
}
/** * sysfs_mbox_read - Read method for reading information via mbox * @filp: open sysfs file * @kobj: kernel kobject that contains the kernel class device. * @bin_attr: kernel attributes passed to us. * @buf: contains the data to be read from sysfs mbox. * @off: offset into buffer to beginning of data. * @count: bytes to transfer. * * Description: * Deprecated function. All mailbox access from user space is performed via the * bsg interface. * * Returns: * -EPERM operation not permitted
**/ static ssize_t
sysfs_mbox_read(struct file *filp, struct kobject *kobj, conststruct bin_attribute *bin_attr, char *buf, loff_t off, size_t count)
{ return -EPERM;
}
/** * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries * @vport: address of lpfc vport structure.
**/ void
lpfc_free_sysfs_attr(struct lpfc_vport *vport)
{ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
/* Virtual ports do not need ctrl_reg and mbox */ if (vport->port_type == LPFC_NPIV_PORT) return;
sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
}
/* * Dynamic FC Host Attributes Support
*/
/** * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host * @shost: kernel scsi host pointer.
**/ staticvoid
lpfc_get_host_symbolic_name(struct Scsi_Host *shost)
{ struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
/** * lpfc_get_host_port_state - Set the value of the scsi host port state * @shost: kernel scsi host pointer.
**/ staticvoid
lpfc_get_host_port_state(struct Scsi_Host *shost)
{ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag))
fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; else { switch (phba->link_state) { case LPFC_LINK_UNKNOWN: case LPFC_LINK_DOWN:
fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; break; case LPFC_LINK_UP: case LPFC_CLEAR_LA: case LPFC_HBA_READY: /* Links up, reports port state accordingly */ if (vport->port_state < LPFC_VPORT_READY)
fc_host_port_state(shost) =
FC_PORTSTATE_BYPASSED; else
fc_host_port_state(shost) =
FC_PORTSTATE_ONLINE; break; case LPFC_HBA_ERROR:
fc_host_port_state(shost) = FC_PORTSTATE_ERROR; break; default:
fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; break;
}
}
}
/** * lpfc_get_host_speed - Set the value of the scsi host speed * @shost: kernel scsi host pointer.
**/ staticvoid
lpfc_get_host_speed(struct Scsi_Host *shost)
{ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
if ((lpfc_is_link_up(phba)) &&
!test_bit(HBA_FCOE_MODE, &phba->hba_flag)) { switch(phba->fc_linkspeed) { case LPFC_LINK_SPEED_1GHZ:
fc_host_speed(shost) = FC_PORTSPEED_1GBIT; break; case LPFC_LINK_SPEED_2GHZ:
fc_host_speed(shost) = FC_PORTSPEED_2GBIT; break; case LPFC_LINK_SPEED_4GHZ:
fc_host_speed(shost) = FC_PORTSPEED_4GBIT; break; case LPFC_LINK_SPEED_8GHZ:
fc_host_speed(shost) = FC_PORTSPEED_8GBIT; break; case LPFC_LINK_SPEED_10GHZ:
fc_host_speed(shost) = FC_PORTSPEED_10GBIT; break; case LPFC_LINK_SPEED_16GHZ:
fc_host_speed(shost) = FC_PORTSPEED_16GBIT; break; case LPFC_LINK_SPEED_32GHZ:
fc_host_speed(shost) = FC_PORTSPEED_32GBIT; break; case LPFC_LINK_SPEED_64GHZ:
fc_host_speed(shost) = FC_PORTSPEED_64GBIT; break; case LPFC_LINK_SPEED_128GHZ:
fc_host_speed(shost) = FC_PORTSPEED_128GBIT; break; case LPFC_LINK_SPEED_256GHZ:
fc_host_speed(shost) = FC_PORTSPEED_256GBIT; break; default:
fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; break;
}
} elseif (lpfc_is_link_up(phba) &&
test_bit(HBA_FCOE_MODE, &phba->hba_flag)) { switch (phba->fc_linkspeed) { case LPFC_ASYNC_LINK_SPEED_1GBPS:
fc_host_speed(shost) = FC_PORTSPEED_1GBIT; break; case LPFC_ASYNC_LINK_SPEED_10GBPS:
fc_host_speed(shost) = FC_PORTSPEED_10GBIT; break; case LPFC_ASYNC_LINK_SPEED_20GBPS:
fc_host_speed(shost) = FC_PORTSPEED_20GBIT; break; case LPFC_ASYNC_LINK_SPEED_25GBPS:
fc_host_speed(shost) = FC_PORTSPEED_25GBIT; break; case LPFC_ASYNC_LINK_SPEED_40GBPS:
fc_host_speed(shost) = FC_PORTSPEED_40GBIT; break; case LPFC_ASYNC_LINK_SPEED_100GBPS:
fc_host_speed(shost) = FC_PORTSPEED_100GBIT; break; default:
fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; break;
}
} else
fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
}
/** * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name * @shost: kernel scsi host pointer.
**/ staticvoid
lpfc_get_host_fabric_name (struct Scsi_Host *shost)
{ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba;
u64 node_name;
if (vport->port_state > LPFC_FLOGI &&
(test_bit(FC_FABRIC, &vport->fc_flag) ||
(phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
test_bit(FC_PUBLIC_LOOP, &vport->fc_flag))))
node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); else /* fabric is local port if there is no F/FL_Port */
node_name = 0;
fc_host_fabric_name(shost) = node_name;
}
/** * lpfc_get_stats - Return statistical information about the adapter * @shost: kernel scsi host pointer. * * Notes: * NULL on error for link down, no mbox pool, sli2 active, * management not allowed, memory allocation error, or mbox error. * * Returns: * NULL for error * address of the adapter host statistics
**/ staticstruct fc_host_statistics *
lpfc_get_stats(struct Scsi_Host *shost)
{ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_sli *psli = &phba->sli; struct fc_host_statistics *hs = &phba->link_stats; struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
LPFC_MBOXQ_t *pmboxq;
MAILBOX_t *pmb; int rc = 0;
/* * prevent udev from issuing mailbox commands until the port is * configured.
*/ if (phba->link_state < LPFC_LINK_DOWN ||
!phba->mbox_mem_pool ||
(phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) return NULL;
if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) return NULL;
/** * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 * @starget: kernel scsi target pointer.
**/ staticvoid
lpfc_get_starget_port_id(struct scsi_target *starget)
{ struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
/** * lpfc_get_starget_node_name - Set the target node name * @starget: kernel scsi target pointer. * * Description: Set the target node name to the ndlp node name wwn or zero.
**/ staticvoid
lpfc_get_starget_node_name(struct scsi_target *starget)
{ struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
/** * lpfc_get_starget_port_name - Set the target port name * @starget: kernel scsi target pointer. * * Description: set the target port name to the ndlp port name wwn or zero.
**/ staticvoid
lpfc_get_starget_port_name(struct scsi_target *starget)
{ struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
/** * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo * @rport: fc rport address. * @timeout: new value for dev loss tmo. * * Description: * If timeout is non zero set the dev_loss_tmo to timeout, else set * dev_loss_tmo to one.
**/ staticvoid
lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
{ struct lpfc_rport_data *rdata = rport->dd_data; struct lpfc_nodelist *ndlp = rdata->pnode; #if (IS_ENABLED(CONFIG_NVME_FC)) struct lpfc_nvme_rport *nrport = NULL; #endif
if (timeout)
rport->dev_loss_tmo = timeout; else
rport->dev_loss_tmo = 1;
if (!ndlp) {
dev_info(&rport->dev, "Cannot find remote node to " "set rport dev loss tmo, port_id x%x\n",
rport->port_id); return;
}
/** * lpfc_set_vport_symbolic_name - Set the vport's symbolic name * @fc_vport: The fc_vport who's symbolic name has been changed. * * Description: * This function is called by the transport after the @fc_vport's symbolic name * has been changed. This function re-registers the symbolic name with the * switch to propagate the change into the fabric if the vport is active.
**/ staticvoid
lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
{ struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
if (vport->port_state == LPFC_VPORT_READY)
lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
}
/** * lpfc_hba_log_verbose_init - Set hba's log verbose level * @phba: Pointer to lpfc_hba struct. * @verbose: Verbose level to set. * * This function is called by the lpfc_get_cfgparam() routine to set the * module lpfc_log_verbose into the @phba cfg_log_verbose for use with * log message according to the module's lpfc_log_verbose parameter setting * before hba port or vport created.
**/ staticvoid
lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
{
phba->cfg_log_verbose = verbose;
}
/** * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE * Mode * @phba: lpfc_hba pointer.
**/ staticvoid
lpfc_get_hba_function_mode(struct lpfc_hba *phba)
{ /* If the adapter supports FCoE mode */ switch (phba->pcidev->device) { case PCI_DEVICE_ID_SKYHAWK: case PCI_DEVICE_ID_SKYHAWK_VF: case PCI_DEVICE_ID_LANCER_FCOE: case PCI_DEVICE_ID_LANCER_FCOE_VF: case PCI_DEVICE_ID_ZEPHYR_DCSP: case PCI_DEVICE_ID_TIGERSHARK: case PCI_DEVICE_ID_TOMCAT:
set_bit(HBA_FCOE_MODE, &phba->hba_flag); break; default: /* for others, clear the flag */
clear_bit(HBA_FCOE_MODE, &phba->hba_flag);
}
}
/* A value of 0 means use the number of CPUs found in the system */ if (phba->cfg_hdw_queue == 0)
phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; if (phba->cfg_irq_chann == 0)
phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; if (phba->cfg_irq_chann > phba->cfg_hdw_queue &&
phba->sli_rev == LPFC_SLI_REV4)
phba->cfg_irq_chann = phba->cfg_hdw_queue;
/** * lpfc_nvme_mod_param_dep - Adjust module parameter value based on * dependencies between protocols and roles. * @phba: lpfc_hba pointer.
**/ void
lpfc_nvme_mod_param_dep(struct lpfc_hba *phba)
{ int logit = 0;
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