| /* |
| * linux/drivers/message/fusion/mptfc.c |
| * For use with LSI PCI chip/adapter(s) |
| * running LSI Fusion MPT (Message Passing Technology) firmware. |
| * |
| * Copyright (c) 1999-2008 LSI Corporation |
| * (mailto:DL-MPTFusionLinux@lsi.com) |
| * |
| */ |
| /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| /* |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; version 2 of the License. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| NO WARRANTY |
| THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR |
| CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT |
| LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, |
| MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is |
| solely responsible for determining the appropriateness of using and |
| distributing the Program and assumes all risks associated with its |
| exercise of rights under this Agreement, including but not limited to |
| the risks and costs of program errors, damage to or loss of data, |
| programs or equipment, and unavailability or interruption of operations. |
| |
| DISCLAIMER OF LIABILITY |
| NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY |
| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND |
| ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
| TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE |
| USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED |
| HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/errno.h> |
| #include <linux/kdev_t.h> |
| #include <linux/blkdev.h> |
| #include <linux/delay.h> /* for mdelay */ |
| #include <linux/interrupt.h> /* needed for in_interrupt() proto */ |
| #include <linux/reboot.h> /* notifier code */ |
| #include <linux/workqueue.h> |
| #include <linux/sort.h> |
| #include <linux/slab.h> |
| |
| #include <scsi/scsi.h> |
| #include <scsi/scsi_cmnd.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_host.h> |
| #include <scsi/scsi_tcq.h> |
| #include <scsi/scsi_transport_fc.h> |
| |
| #include "mptbase.h" |
| #include "mptscsih.h" |
| |
| /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| #define my_NAME "Fusion MPT FC Host driver" |
| #define my_VERSION MPT_LINUX_VERSION_COMMON |
| #define MYNAM "mptfc" |
| |
| MODULE_AUTHOR(MODULEAUTHOR); |
| MODULE_DESCRIPTION(my_NAME); |
| MODULE_LICENSE("GPL"); |
| MODULE_VERSION(my_VERSION); |
| |
| /* Command line args */ |
| #define MPTFC_DEV_LOSS_TMO (60) |
| static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */ |
| module_param(mptfc_dev_loss_tmo, int, 0); |
| MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the " |
| " transport to wait for an rport to " |
| " return following a device loss event." |
| " Default=60."); |
| |
| /* scsi-mid layer global parmeter is max_report_luns, which is 511 */ |
| #define MPTFC_MAX_LUN (16895) |
| static int max_lun = MPTFC_MAX_LUN; |
| module_param(max_lun, int, 0); |
| MODULE_PARM_DESC(max_lun, " max lun, default=16895 "); |
| |
| static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS; |
| static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS; |
| static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; |
| |
| static int mptfc_target_alloc(struct scsi_target *starget); |
| static int mptfc_slave_alloc(struct scsi_device *sdev); |
| static int mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt); |
| static void mptfc_target_destroy(struct scsi_target *starget); |
| static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout); |
| static void mptfc_remove(struct pci_dev *pdev); |
| static int mptfc_abort(struct scsi_cmnd *SCpnt); |
| static int mptfc_dev_reset(struct scsi_cmnd *SCpnt); |
| static int mptfc_bus_reset(struct scsi_cmnd *SCpnt); |
| static int mptfc_host_reset(struct scsi_cmnd *SCpnt); |
| |
| static struct scsi_host_template mptfc_driver_template = { |
| .module = THIS_MODULE, |
| .proc_name = "mptfc", |
| .show_info = mptscsih_show_info, |
| .name = "MPT FC Host", |
| .info = mptscsih_info, |
| .queuecommand = mptfc_qcmd, |
| .target_alloc = mptfc_target_alloc, |
| .slave_alloc = mptfc_slave_alloc, |
| .slave_configure = mptscsih_slave_configure, |
| .target_destroy = mptfc_target_destroy, |
| .slave_destroy = mptscsih_slave_destroy, |
| .change_queue_depth = mptscsih_change_queue_depth, |
| .eh_timed_out = fc_eh_timed_out, |
| .eh_abort_handler = mptfc_abort, |
| .eh_device_reset_handler = mptfc_dev_reset, |
| .eh_bus_reset_handler = mptfc_bus_reset, |
| .eh_host_reset_handler = mptfc_host_reset, |
| .bios_param = mptscsih_bios_param, |
| .can_queue = MPT_FC_CAN_QUEUE, |
| .this_id = -1, |
| .sg_tablesize = MPT_SCSI_SG_DEPTH, |
| .max_sectors = 8192, |
| .cmd_per_lun = 7, |
| .use_clustering = ENABLE_CLUSTERING, |
| .shost_attrs = mptscsih_host_attrs, |
| }; |
| |
| /**************************************************************************** |
| * Supported hardware |
| */ |
| |
| static struct pci_device_id mptfc_pci_table[] = { |
| { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909, |
| PCI_ANY_ID, PCI_ANY_ID }, |
| { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919, |
| PCI_ANY_ID, PCI_ANY_ID }, |
| { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929, |
| PCI_ANY_ID, PCI_ANY_ID }, |
| { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X, |
| PCI_ANY_ID, PCI_ANY_ID }, |
| { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X, |
| PCI_ANY_ID, PCI_ANY_ID }, |
| { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X, |
| PCI_ANY_ID, PCI_ANY_ID }, |
| { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X, |
| PCI_ANY_ID, PCI_ANY_ID }, |
| { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E, |
| PCI_ANY_ID, PCI_ANY_ID }, |
| { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E, |
| PCI_ANY_ID, PCI_ANY_ID }, |
| {0} /* Terminating entry */ |
| }; |
| MODULE_DEVICE_TABLE(pci, mptfc_pci_table); |
| |
| static struct scsi_transport_template *mptfc_transport_template = NULL; |
| |
| static struct fc_function_template mptfc_transport_functions = { |
| .dd_fcrport_size = 8, |
| .show_host_node_name = 1, |
| .show_host_port_name = 1, |
| .show_host_supported_classes = 1, |
| .show_host_port_id = 1, |
| .show_rport_supported_classes = 1, |
| .show_starget_node_name = 1, |
| .show_starget_port_name = 1, |
| .show_starget_port_id = 1, |
| .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo, |
| .show_rport_dev_loss_tmo = 1, |
| .show_host_supported_speeds = 1, |
| .show_host_maxframe_size = 1, |
| .show_host_speed = 1, |
| .show_host_fabric_name = 1, |
| .show_host_port_type = 1, |
| .show_host_port_state = 1, |
| .show_host_symbolic_name = 1, |
| }; |
| |
| static int |
| mptfc_block_error_handler(struct scsi_cmnd *SCpnt, |
| int (*func)(struct scsi_cmnd *SCpnt), |
| const char *caller) |
| { |
| MPT_SCSI_HOST *hd; |
| struct scsi_device *sdev = SCpnt->device; |
| struct Scsi_Host *shost = sdev->host; |
| struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); |
| unsigned long flags; |
| int ready; |
| MPT_ADAPTER *ioc; |
| int loops = 40; /* seconds */ |
| |
| hd = shost_priv(SCpnt->device->host); |
| ioc = hd->ioc; |
| spin_lock_irqsave(shost->host_lock, flags); |
| while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY |
| || (loops > 0 && ioc->active == 0)) { |
| spin_unlock_irqrestore(shost->host_lock, flags); |
| dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT |
| "mptfc_block_error_handler.%d: %d:%llu, port status is " |
| "%x, active flag %d, deferring %s recovery.\n", |
| ioc->name, ioc->sh->host_no, |
| SCpnt->device->id, SCpnt->device->lun, |
| ready, ioc->active, caller)); |
| msleep(1000); |
| spin_lock_irqsave(shost->host_lock, flags); |
| loops --; |
| } |
| spin_unlock_irqrestore(shost->host_lock, flags); |
| |
| if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata |
| || ioc->active == 0) { |
| dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT |
| "%s.%d: %d:%llu, failing recovery, " |
| "port state %x, active %d, vdevice %p.\n", caller, |
| ioc->name, ioc->sh->host_no, |
| SCpnt->device->id, SCpnt->device->lun, ready, |
| ioc->active, SCpnt->device->hostdata)); |
| return FAILED; |
| } |
| dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT |
| "%s.%d: %d:%llu, executing recovery.\n", caller, |
| ioc->name, ioc->sh->host_no, |
| SCpnt->device->id, SCpnt->device->lun)); |
| return (*func)(SCpnt); |
| } |
| |
| static int |
| mptfc_abort(struct scsi_cmnd *SCpnt) |
| { |
| return |
| mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__); |
| } |
| |
| static int |
| mptfc_dev_reset(struct scsi_cmnd *SCpnt) |
| { |
| return |
| mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__); |
| } |
| |
| static int |
| mptfc_bus_reset(struct scsi_cmnd *SCpnt) |
| { |
| return |
| mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__); |
| } |
| |
| static int |
| mptfc_host_reset(struct scsi_cmnd *SCpnt) |
| { |
| return |
| mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __func__); |
| } |
| |
| static void |
| mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) |
| { |
| if (timeout > 0) |
| rport->dev_loss_tmo = timeout; |
| else |
| rport->dev_loss_tmo = mptfc_dev_loss_tmo; |
| } |
| |
| static int |
| mptfc_FcDevPage0_cmp_func(const void *a, const void *b) |
| { |
| FCDevicePage0_t **aa = (FCDevicePage0_t **)a; |
| FCDevicePage0_t **bb = (FCDevicePage0_t **)b; |
| |
| if ((*aa)->CurrentBus == (*bb)->CurrentBus) { |
| if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID) |
| return 0; |
| if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID) |
| return -1; |
| return 1; |
| } |
| if ((*aa)->CurrentBus < (*bb)->CurrentBus) |
| return -1; |
| return 1; |
| } |
| |
| static int |
| mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port, |
| void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg)) |
| { |
| ConfigPageHeader_t hdr; |
| CONFIGPARMS cfg; |
| FCDevicePage0_t *ppage0_alloc, *fc; |
| dma_addr_t page0_dma; |
| int data_sz; |
| int ii; |
| |
| FCDevicePage0_t *p0_array=NULL, *p_p0; |
| FCDevicePage0_t **pp0_array=NULL, **p_pp0; |
| |
| int rc = -ENOMEM; |
| U32 port_id = 0xffffff; |
| int num_targ = 0; |
| int max_bus = ioc->facts.MaxBuses; |
| int max_targ; |
| |
| max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices; |
| |
| data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ; |
| p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL); |
| if (!p0_array) |
| goto out; |
| |
| data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ; |
| p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL); |
| if (!pp0_array) |
| goto out; |
| |
| do { |
| /* Get FC Device Page 0 header */ |
| hdr.PageVersion = 0; |
| hdr.PageLength = 0; |
| hdr.PageNumber = 0; |
| hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE; |
| cfg.cfghdr.hdr = &hdr; |
| cfg.physAddr = -1; |
| cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; |
| cfg.dir = 0; |
| cfg.pageAddr = port_id; |
| cfg.timeout = 0; |
| |
| if ((rc = mpt_config(ioc, &cfg)) != 0) |
| break; |
| |
| if (hdr.PageLength <= 0) |
| break; |
| |
| data_sz = hdr.PageLength * 4; |
| ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, |
| &page0_dma); |
| rc = -ENOMEM; |
| if (!ppage0_alloc) |
| break; |
| |
| cfg.physAddr = page0_dma; |
| cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; |
| |
| if ((rc = mpt_config(ioc, &cfg)) == 0) { |
| ppage0_alloc->PortIdentifier = |
| le32_to_cpu(ppage0_alloc->PortIdentifier); |
| |
| ppage0_alloc->WWNN.Low = |
| le32_to_cpu(ppage0_alloc->WWNN.Low); |
| |
| ppage0_alloc->WWNN.High = |
| le32_to_cpu(ppage0_alloc->WWNN.High); |
| |
| ppage0_alloc->WWPN.Low = |
| le32_to_cpu(ppage0_alloc->WWPN.Low); |
| |
| ppage0_alloc->WWPN.High = |
| le32_to_cpu(ppage0_alloc->WWPN.High); |
| |
| ppage0_alloc->BBCredit = |
| le16_to_cpu(ppage0_alloc->BBCredit); |
| |
| ppage0_alloc->MaxRxFrameSize = |
| le16_to_cpu(ppage0_alloc->MaxRxFrameSize); |
| |
| port_id = ppage0_alloc->PortIdentifier; |
| num_targ++; |
| *p_p0 = *ppage0_alloc; /* save data */ |
| *p_pp0++ = p_p0++; /* save addr */ |
| } |
| pci_free_consistent(ioc->pcidev, data_sz, |
| (u8 *) ppage0_alloc, page0_dma); |
| if (rc != 0) |
| break; |
| |
| } while (port_id <= 0xff0000); |
| |
| if (num_targ) { |
| /* sort array */ |
| if (num_targ > 1) |
| sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *), |
| mptfc_FcDevPage0_cmp_func, NULL); |
| /* call caller's func for each targ */ |
| for (ii = 0; ii < num_targ; ii++) { |
| fc = *(pp0_array+ii); |
| func(ioc, ioc_port, fc); |
| } |
| } |
| |
| out: |
| kfree(pp0_array); |
| kfree(p0_array); |
| return rc; |
| } |
| |
| static int |
| mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid) |
| { |
| /* not currently usable */ |
| if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID | |
| MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID)) |
| return -1; |
| |
| if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID)) |
| return -1; |
| |
| if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET)) |
| return -1; |
| |
| /* |
| * board data structure already normalized to platform endianness |
| * shifted to avoid unaligned access on 64 bit architecture |
| */ |
| rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low; |
| rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low; |
| rid->port_id = pg0->PortIdentifier; |
| rid->roles = FC_RPORT_ROLE_UNKNOWN; |
| |
| return 0; |
| } |
| |
| static void |
| mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0) |
| { |
| struct fc_rport_identifiers rport_ids; |
| struct fc_rport *rport; |
| struct mptfc_rport_info *ri; |
| int new_ri = 1; |
| u64 pn, nn; |
| VirtTarget *vtarget; |
| u32 roles = FC_RPORT_ROLE_UNKNOWN; |
| |
| if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0) |
| return; |
| |
| roles |= FC_RPORT_ROLE_FCP_TARGET; |
| if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR) |
| roles |= FC_RPORT_ROLE_FCP_INITIATOR; |
| |
| /* scan list looking for a match */ |
| list_for_each_entry(ri, &ioc->fc_rports, list) { |
| pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; |
| if (pn == rport_ids.port_name) { /* match */ |
| list_move_tail(&ri->list, &ioc->fc_rports); |
| new_ri = 0; |
| break; |
| } |
| } |
| if (new_ri) { /* allocate one */ |
| ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL); |
| if (!ri) |
| return; |
| list_add_tail(&ri->list, &ioc->fc_rports); |
| } |
| |
| ri->pg0 = *pg0; /* add/update pg0 data */ |
| ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING; |
| |
| /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */ |
| if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) { |
| ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED; |
| rport = fc_remote_port_add(ioc->sh, channel, &rport_ids); |
| if (rport) { |
| ri->rport = rport; |
| if (new_ri) /* may have been reset by user */ |
| rport->dev_loss_tmo = mptfc_dev_loss_tmo; |
| /* |
| * if already mapped, remap here. If not mapped, |
| * target_alloc will allocate vtarget and map, |
| * slave_alloc will fill in vdevice from vtarget. |
| */ |
| if (ri->starget) { |
| vtarget = ri->starget->hostdata; |
| if (vtarget) { |
| vtarget->id = pg0->CurrentTargetID; |
| vtarget->channel = pg0->CurrentBus; |
| vtarget->deleted = 0; |
| } |
| } |
| *((struct mptfc_rport_info **)rport->dd_data) = ri; |
| /* scan will be scheduled once rport becomes a target */ |
| fc_remote_port_rolechg(rport,roles); |
| |
| pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; |
| nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; |
| dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT |
| "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, " |
| "rport tid %d, tmo %d\n", |
| ioc->name, |
| ioc->sh->host_no, |
| pg0->PortIdentifier, |
| (unsigned long long)nn, |
| (unsigned long long)pn, |
| pg0->CurrentTargetID, |
| ri->rport->scsi_target_id, |
| ri->rport->dev_loss_tmo)); |
| } else { |
| list_del(&ri->list); |
| kfree(ri); |
| ri = NULL; |
| } |
| } |
| } |
| |
| /* |
| * OS entry point to allow for host driver to free allocated memory |
| * Called if no device present or device being unloaded |
| */ |
| static void |
| mptfc_target_destroy(struct scsi_target *starget) |
| { |
| struct fc_rport *rport; |
| struct mptfc_rport_info *ri; |
| |
| rport = starget_to_rport(starget); |
| if (rport) { |
| ri = *((struct mptfc_rport_info **)rport->dd_data); |
| if (ri) /* better be! */ |
| ri->starget = NULL; |
| } |
| kfree(starget->hostdata); |
| starget->hostdata = NULL; |
| } |
| |
| /* |
| * OS entry point to allow host driver to alloc memory |
| * for each scsi target. Called once per device the bus scan. |
| * Return non-zero if allocation fails. |
| */ |
| static int |
| mptfc_target_alloc(struct scsi_target *starget) |
| { |
| VirtTarget *vtarget; |
| struct fc_rport *rport; |
| struct mptfc_rport_info *ri; |
| int rc; |
| |
| vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); |
| if (!vtarget) |
| return -ENOMEM; |
| starget->hostdata = vtarget; |
| |
| rc = -ENODEV; |
| rport = starget_to_rport(starget); |
| if (rport) { |
| ri = *((struct mptfc_rport_info **)rport->dd_data); |
| if (ri) { /* better be! */ |
| vtarget->id = ri->pg0.CurrentTargetID; |
| vtarget->channel = ri->pg0.CurrentBus; |
| ri->starget = starget; |
| rc = 0; |
| } |
| } |
| if (rc != 0) { |
| kfree(vtarget); |
| starget->hostdata = NULL; |
| } |
| |
| return rc; |
| } |
| /* |
| * mptfc_dump_lun_info |
| * @ioc |
| * @rport |
| * @sdev |
| * |
| */ |
| static void |
| mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev, |
| VirtTarget *vtarget) |
| { |
| u64 nn, pn; |
| struct mptfc_rport_info *ri; |
| |
| ri = *((struct mptfc_rport_info **)rport->dd_data); |
| pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; |
| nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; |
| dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT |
| "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " |
| "CurrentTargetID %d, %x %llx %llx\n", |
| ioc->name, |
| sdev->host->host_no, |
| vtarget->num_luns, |
| sdev->id, ri->pg0.CurrentTargetID, |
| ri->pg0.PortIdentifier, |
| (unsigned long long)pn, |
| (unsigned long long)nn)); |
| } |
| |
| |
| /* |
| * OS entry point to allow host driver to alloc memory |
| * for each scsi device. Called once per device the bus scan. |
| * Return non-zero if allocation fails. |
| * Init memory once per LUN. |
| */ |
| static int |
| mptfc_slave_alloc(struct scsi_device *sdev) |
| { |
| MPT_SCSI_HOST *hd; |
| VirtTarget *vtarget; |
| VirtDevice *vdevice; |
| struct scsi_target *starget; |
| struct fc_rport *rport; |
| MPT_ADAPTER *ioc; |
| |
| starget = scsi_target(sdev); |
| rport = starget_to_rport(starget); |
| |
| if (!rport || fc_remote_port_chkready(rport)) |
| return -ENXIO; |
| |
| hd = shost_priv(sdev->host); |
| ioc = hd->ioc; |
| |
| vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); |
| if (!vdevice) { |
| printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", |
| ioc->name, sizeof(VirtDevice)); |
| return -ENOMEM; |
| } |
| |
| |
| sdev->hostdata = vdevice; |
| vtarget = starget->hostdata; |
| |
| if (vtarget->num_luns == 0) { |
| vtarget->ioc_id = ioc->id; |
| vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; |
| } |
| |
| vdevice->vtarget = vtarget; |
| vdevice->lun = sdev->lun; |
| |
| vtarget->num_luns++; |
| |
| |
| mptfc_dump_lun_info(ioc, rport, sdev, vtarget); |
| |
| return 0; |
| } |
| |
| static int |
| mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt) |
| { |
| struct mptfc_rport_info *ri; |
| struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); |
| int err; |
| VirtDevice *vdevice = SCpnt->device->hostdata; |
| |
| if (!vdevice || !vdevice->vtarget) { |
| SCpnt->result = DID_NO_CONNECT << 16; |
| SCpnt->scsi_done(SCpnt); |
| return 0; |
| } |
| |
| err = fc_remote_port_chkready(rport); |
| if (unlikely(err)) { |
| SCpnt->result = err; |
| SCpnt->scsi_done(SCpnt); |
| return 0; |
| } |
| |
| /* dd_data is null until finished adding target */ |
| ri = *((struct mptfc_rport_info **)rport->dd_data); |
| if (unlikely(!ri)) { |
| SCpnt->result = DID_IMM_RETRY << 16; |
| SCpnt->scsi_done(SCpnt); |
| return 0; |
| } |
| |
| return mptscsih_qcmd(SCpnt); |
| } |
| |
| /* |
| * mptfc_display_port_link_speed - displaying link speed |
| * @ioc: Pointer to MPT_ADAPTER structure |
| * @portnum: IOC Port number |
| * @pp0dest: port page0 data payload |
| * |
| */ |
| static void |
| mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest) |
| { |
| u8 old_speed, new_speed, state; |
| char *old, *new; |
| |
| if (portnum >= 2) |
| return; |
| |
| old_speed = ioc->fc_link_speed[portnum]; |
| new_speed = pp0dest->CurrentSpeed; |
| state = pp0dest->PortState; |
| |
| if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE && |
| new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) { |
| |
| old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : |
| old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : |
| old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : |
| "Unknown"; |
| new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : |
| new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : |
| new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : |
| "Unknown"; |
| if (old_speed == 0) |
| printk(MYIOC_s_NOTE_FMT |
| "FC Link Established, Speed = %s\n", |
| ioc->name, new); |
| else if (old_speed != new_speed) |
| printk(MYIOC_s_WARN_FMT |
| "FC Link Speed Change, Old Speed = %s, New Speed = %s\n", |
| ioc->name, old, new); |
| |
| ioc->fc_link_speed[portnum] = new_speed; |
| } |
| } |
| |
| /* |
| * mptfc_GetFcPortPage0 - Fetch FCPort config Page0. |
| * @ioc: Pointer to MPT_ADAPTER structure |
| * @portnum: IOC Port number |
| * |
| * Return: 0 for success |
| * -ENOMEM if no memory available |
| * -EPERM if not allowed due to ISR context |
| * -EAGAIN if no msg frames currently available |
| * -EFAULT for non-successful reply or no reply (timeout) |
| * -EINVAL portnum arg out of range (hardwired to two elements) |
| */ |
| static int |
| mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) |
| { |
| ConfigPageHeader_t hdr; |
| CONFIGPARMS cfg; |
| FCPortPage0_t *ppage0_alloc; |
| FCPortPage0_t *pp0dest; |
| dma_addr_t page0_dma; |
| int data_sz; |
| int copy_sz; |
| int rc; |
| int count = 400; |
| |
| if (portnum > 1) |
| return -EINVAL; |
| |
| /* Get FCPort Page 0 header */ |
| hdr.PageVersion = 0; |
| hdr.PageLength = 0; |
| hdr.PageNumber = 0; |
| hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; |
| cfg.cfghdr.hdr = &hdr; |
| cfg.physAddr = -1; |
| cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; |
| cfg.dir = 0; |
| cfg.pageAddr = portnum; |
| cfg.timeout = 0; |
| |
| if ((rc = mpt_config(ioc, &cfg)) != 0) |
| return rc; |
| |
| if (hdr.PageLength == 0) |
| return 0; |
| |
| data_sz = hdr.PageLength * 4; |
| rc = -ENOMEM; |
| ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma); |
| if (ppage0_alloc) { |
| |
| try_again: |
| memset((u8 *)ppage0_alloc, 0, data_sz); |
| cfg.physAddr = page0_dma; |
| cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; |
| |
| if ((rc = mpt_config(ioc, &cfg)) == 0) { |
| /* save the data */ |
| pp0dest = &ioc->fc_port_page0[portnum]; |
| copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz); |
| memcpy(pp0dest, ppage0_alloc, copy_sz); |
| |
| /* |
| * Normalize endianness of structure data, |
| * by byte-swapping all > 1 byte fields! |
| */ |
| pp0dest->Flags = le32_to_cpu(pp0dest->Flags); |
| pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier); |
| pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low); |
| pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High); |
| pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low); |
| pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High); |
| pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass); |
| pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds); |
| pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed); |
| pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize); |
| pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low); |
| pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High); |
| pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low); |
| pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High); |
| pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount); |
| pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators); |
| |
| /* |
| * if still doing discovery, |
| * hang loose a while until finished |
| */ |
| if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) || |
| (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE && |
| (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) |
| == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) { |
| if (count-- > 0) { |
| msleep(100); |
| goto try_again; |
| } |
| printk(MYIOC_s_INFO_FMT "Firmware discovery not" |
| " complete.\n", |
| ioc->name); |
| } |
| mptfc_display_port_link_speed(ioc, portnum, pp0dest); |
| } |
| |
| pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma); |
| } |
| |
| return rc; |
| } |
| |
| static int |
| mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum) |
| { |
| ConfigPageHeader_t hdr; |
| CONFIGPARMS cfg; |
| int rc; |
| |
| if (portnum > 1) |
| return -EINVAL; |
| |
| if (!(ioc->fc_data.fc_port_page1[portnum].data)) |
| return -EINVAL; |
| |
| /* get fcport page 1 header */ |
| hdr.PageVersion = 0; |
| hdr.PageLength = 0; |
| hdr.PageNumber = 1; |
| hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; |
| cfg.cfghdr.hdr = &hdr; |
| cfg.physAddr = -1; |
| cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; |
| cfg.dir = 0; |
| cfg.pageAddr = portnum; |
| cfg.timeout = 0; |
| |
| if ((rc = mpt_config(ioc, &cfg)) != 0) |
| return rc; |
| |
| if (hdr.PageLength == 0) |
| return -ENODEV; |
| |
| if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz) |
| return -EINVAL; |
| |
| cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma; |
| cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; |
| cfg.dir = 1; |
| |
| rc = mpt_config(ioc, &cfg); |
| |
| return rc; |
| } |
| |
| static int |
| mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum) |
| { |
| ConfigPageHeader_t hdr; |
| CONFIGPARMS cfg; |
| FCPortPage1_t *page1_alloc; |
| dma_addr_t page1_dma; |
| int data_sz; |
| int rc; |
| |
| if (portnum > 1) |
| return -EINVAL; |
| |
| /* get fcport page 1 header */ |
| hdr.PageVersion = 0; |
| hdr.PageLength = 0; |
| hdr.PageNumber = 1; |
| hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; |
| cfg.cfghdr.hdr = &hdr; |
| cfg.physAddr = -1; |
| cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; |
| cfg.dir = 0; |
| cfg.pageAddr = portnum; |
| cfg.timeout = 0; |
| |
| if ((rc = mpt_config(ioc, &cfg)) != 0) |
| return rc; |
| |
| if (hdr.PageLength == 0) |
| return -ENODEV; |
| |
| start_over: |
| |
| if (ioc->fc_data.fc_port_page1[portnum].data == NULL) { |
| data_sz = hdr.PageLength * 4; |
| if (data_sz < sizeof(FCPortPage1_t)) |
| data_sz = sizeof(FCPortPage1_t); |
| |
| page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev, |
| data_sz, |
| &page1_dma); |
| if (!page1_alloc) |
| return -ENOMEM; |
| } |
| else { |
| page1_alloc = ioc->fc_data.fc_port_page1[portnum].data; |
| page1_dma = ioc->fc_data.fc_port_page1[portnum].dma; |
| data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz; |
| if (hdr.PageLength * 4 > data_sz) { |
| ioc->fc_data.fc_port_page1[portnum].data = NULL; |
| pci_free_consistent(ioc->pcidev, data_sz, (u8 *) |
| page1_alloc, page1_dma); |
| goto start_over; |
| } |
| } |
| |
| memset(page1_alloc,0,data_sz); |
| |
| cfg.physAddr = page1_dma; |
| cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; |
| |
| if ((rc = mpt_config(ioc, &cfg)) == 0) { |
| ioc->fc_data.fc_port_page1[portnum].data = page1_alloc; |
| ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz; |
| ioc->fc_data.fc_port_page1[portnum].dma = page1_dma; |
| } |
| else { |
| ioc->fc_data.fc_port_page1[portnum].data = NULL; |
| pci_free_consistent(ioc->pcidev, data_sz, (u8 *) |
| page1_alloc, page1_dma); |
| } |
| |
| return rc; |
| } |
| |
| static void |
| mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc) |
| { |
| int ii; |
| FCPortPage1_t *pp1; |
| |
| #define MPTFC_FW_DEVICE_TIMEOUT (1) |
| #define MPTFC_FW_IO_PEND_TIMEOUT (1) |
| #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY) |
| #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS) |
| |
| for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { |
| if (mptfc_GetFcPortPage1(ioc, ii) != 0) |
| continue; |
| pp1 = ioc->fc_data.fc_port_page1[ii].data; |
| if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT) |
| && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT) |
| && ((pp1->Flags & ON_FLAGS) == ON_FLAGS) |
| && ((pp1->Flags & OFF_FLAGS) == 0)) |
| continue; |
| pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT; |
| pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT; |
| pp1->Flags &= ~OFF_FLAGS; |
| pp1->Flags |= ON_FLAGS; |
| mptfc_WriteFcPortPage1(ioc, ii); |
| } |
| } |
| |
| |
| static void |
| mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) |
| { |
| unsigned class = 0; |
| unsigned cos = 0; |
| unsigned speed; |
| unsigned port_type; |
| unsigned port_state; |
| FCPortPage0_t *pp0; |
| struct Scsi_Host *sh; |
| char *sn; |
| |
| /* don't know what to do as only one scsi (fc) host was allocated */ |
| if (portnum != 0) |
| return; |
| |
| pp0 = &ioc->fc_port_page0[portnum]; |
| sh = ioc->sh; |
| |
| sn = fc_host_symbolic_name(sh); |
| snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh", |
| ioc->prod_name, |
| MPT_FW_REV_MAGIC_ID_STRING, |
| ioc->facts.FWVersion.Word); |
| |
| fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN; |
| |
| fc_host_maxframe_size(sh) = pp0->MaxFrameSize; |
| |
| fc_host_node_name(sh) = |
| (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; |
| |
| fc_host_port_name(sh) = |
| (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low; |
| |
| fc_host_port_id(sh) = pp0->PortIdentifier; |
| |
| class = pp0->SupportedServiceClass; |
| if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) |
| cos |= FC_COS_CLASS1; |
| if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) |
| cos |= FC_COS_CLASS2; |
| if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) |
| cos |= FC_COS_CLASS3; |
| fc_host_supported_classes(sh) = cos; |
| |
| if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT) |
| speed = FC_PORTSPEED_1GBIT; |
| else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT) |
| speed = FC_PORTSPEED_2GBIT; |
| else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT) |
| speed = FC_PORTSPEED_4GBIT; |
| else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT) |
| speed = FC_PORTSPEED_10GBIT; |
| else |
| speed = FC_PORTSPEED_UNKNOWN; |
| fc_host_speed(sh) = speed; |
| |
| speed = 0; |
| if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED) |
| speed |= FC_PORTSPEED_1GBIT; |
| if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED) |
| speed |= FC_PORTSPEED_2GBIT; |
| if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED) |
| speed |= FC_PORTSPEED_4GBIT; |
| if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED) |
| speed |= FC_PORTSPEED_10GBIT; |
| fc_host_supported_speeds(sh) = speed; |
| |
| port_state = FC_PORTSTATE_UNKNOWN; |
| if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE) |
| port_state = FC_PORTSTATE_ONLINE; |
| else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE) |
| port_state = FC_PORTSTATE_LINKDOWN; |
| fc_host_port_state(sh) = port_state; |
| |
| port_type = FC_PORTTYPE_UNKNOWN; |
| if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT) |
| port_type = FC_PORTTYPE_PTP; |
| else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP) |
| port_type = FC_PORTTYPE_LPORT; |
| else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP) |
| port_type = FC_PORTTYPE_NLPORT; |
| else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT) |
| port_type = FC_PORTTYPE_NPORT; |
| fc_host_port_type(sh) = port_type; |
| |
| fc_host_fabric_name(sh) = |
| (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ? |
| (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low : |
| (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; |
| |
| } |
| |
| static void |
| mptfc_link_status_change(struct work_struct *work) |
| { |
| MPT_ADAPTER *ioc = |
| container_of(work, MPT_ADAPTER, fc_rescan_work); |
| int ii; |
| |
| for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) |
| (void) mptfc_GetFcPortPage0(ioc, ii); |
| |
| } |
| |
| static void |
| mptfc_setup_reset(struct work_struct *work) |
| { |
| MPT_ADAPTER *ioc = |
| container_of(work, MPT_ADAPTER, fc_setup_reset_work); |
| u64 pn; |
| struct mptfc_rport_info *ri; |
| struct scsi_target *starget; |
| VirtTarget *vtarget; |
| |
| /* reset about to happen, delete (block) all rports */ |
| list_for_each_entry(ri, &ioc->fc_rports, list) { |
| if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { |
| ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED; |
| fc_remote_port_delete(ri->rport); /* won't sleep */ |
| ri->rport = NULL; |
| starget = ri->starget; |
| if (starget) { |
| vtarget = starget->hostdata; |
| if (vtarget) |
| vtarget->deleted = 1; |
| } |
| |
| pn = (u64)ri->pg0.WWPN.High << 32 | |
| (u64)ri->pg0.WWPN.Low; |
| dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT |
| "mptfc_setup_reset.%d: %llx deleted\n", |
| ioc->name, |
| ioc->sh->host_no, |
| (unsigned long long)pn)); |
| } |
| } |
| } |
| |
| static void |
| mptfc_rescan_devices(struct work_struct *work) |
| { |
| MPT_ADAPTER *ioc = |
| container_of(work, MPT_ADAPTER, fc_rescan_work); |
| int ii; |
| u64 pn; |
| struct mptfc_rport_info *ri; |
| struct scsi_target *starget; |
| VirtTarget *vtarget; |
| |
| /* start by tagging all ports as missing */ |
| list_for_each_entry(ri, &ioc->fc_rports, list) { |
| if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { |
| ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; |
| } |
| } |
| |
| /* |
| * now rescan devices known to adapter, |
| * will reregister existing rports |
| */ |
| for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { |
| (void) mptfc_GetFcPortPage0(ioc, ii); |
| mptfc_init_host_attr(ioc, ii); /* refresh */ |
| mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev); |
| } |
| |
| /* delete devices still missing */ |
| list_for_each_entry(ri, &ioc->fc_rports, list) { |
| /* if newly missing, delete it */ |
| if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { |
| |
| ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| |
| MPT_RPORT_INFO_FLAGS_MISSING); |
| fc_remote_port_delete(ri->rport); /* won't sleep */ |
| ri->rport = NULL; |
| starget = ri->starget; |
| if (starget) { |
| vtarget = starget->hostdata; |
| if (vtarget) |
| vtarget->deleted = 1; |
| } |
| |
| pn = (u64)ri->pg0.WWPN.High << 32 | |
| (u64)ri->pg0.WWPN.Low; |
| dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT |
| "mptfc_rescan.%d: %llx deleted\n", |
| ioc->name, |
| ioc->sh->host_no, |
| (unsigned long long)pn)); |
| } |
| } |
| } |
| |
| static int |
| mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
| { |
| struct Scsi_Host *sh; |
| MPT_SCSI_HOST *hd; |
| MPT_ADAPTER *ioc; |
| unsigned long flags; |
| int ii; |
| int numSGE = 0; |
| int scale; |
| int ioc_cap; |
| int error=0; |
| int r; |
| |
| if ((r = mpt_attach(pdev,id)) != 0) |
| return r; |
| |
| ioc = pci_get_drvdata(pdev); |
| ioc->DoneCtx = mptfcDoneCtx; |
| ioc->TaskCtx = mptfcTaskCtx; |
| ioc->InternalCtx = mptfcInternalCtx; |
| |
| /* Added sanity check on readiness of the MPT adapter. |
| */ |
| if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { |
| printk(MYIOC_s_WARN_FMT |
| "Skipping because it's not operational!\n", |
| ioc->name); |
| error = -ENODEV; |
| goto out_mptfc_probe; |
| } |
| |
| if (!ioc->active) { |
| printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", |
| ioc->name); |
| error = -ENODEV; |
| goto out_mptfc_probe; |
| } |
| |
| /* Sanity check - ensure at least 1 port is INITIATOR capable |
| */ |
| ioc_cap = 0; |
| for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { |
| if (ioc->pfacts[ii].ProtocolFlags & |
| MPI_PORTFACTS_PROTOCOL_INITIATOR) |
| ioc_cap ++; |
| } |
| |
| if (!ioc_cap) { |
| printk(MYIOC_s_WARN_FMT |
| "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", |
| ioc->name, ioc); |
| return 0; |
| } |
| |
| sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); |
| |
| if (!sh) { |
| printk(MYIOC_s_WARN_FMT |
| "Unable to register controller with SCSI subsystem\n", |
| ioc->name); |
| error = -1; |
| goto out_mptfc_probe; |
| } |
| |
| spin_lock_init(&ioc->fc_rescan_work_lock); |
| INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices); |
| INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset); |
| INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change); |
| |
| spin_lock_irqsave(&ioc->FreeQlock, flags); |
| |
| /* Attach the SCSI Host to the IOC structure |
| */ |
| ioc->sh = sh; |
| |
| sh->io_port = 0; |
| sh->n_io_port = 0; |
| sh->irq = 0; |
| |
| /* set 16 byte cdb's */ |
| sh->max_cmd_len = 16; |
| |
| sh->max_id = ioc->pfacts->MaxDevices; |
| sh->max_lun = max_lun; |
| |
| /* Required entry. |
| */ |
| sh->unique_id = ioc->id; |
| |
| /* Verify that we won't exceed the maximum |
| * number of chain buffers |
| * We can optimize: ZZ = req_sz/sizeof(SGE) |
| * For 32bit SGE's: |
| * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ |
| * + (req_sz - 64)/sizeof(SGE) |
| * A slightly different algorithm is required for |
| * 64bit SGEs. |
| */ |
| scale = ioc->req_sz/ioc->SGE_size; |
| if (ioc->sg_addr_size == sizeof(u64)) { |
| numSGE = (scale - 1) * |
| (ioc->facts.MaxChainDepth-1) + scale + |
| (ioc->req_sz - 60) / ioc->SGE_size; |
| } else { |
| numSGE = 1 + (scale - 1) * |
| (ioc->facts.MaxChainDepth-1) + scale + |
| (ioc->req_sz - 64) / ioc->SGE_size; |
| } |
| |
| if (numSGE < sh->sg_tablesize) { |
| /* Reset this value */ |
| dprintk(ioc, printk(MYIOC_s_DEBUG_FMT |
| "Resetting sg_tablesize to %d from %d\n", |
| ioc->name, numSGE, sh->sg_tablesize)); |
| sh->sg_tablesize = numSGE; |
| } |
| |
| spin_unlock_irqrestore(&ioc->FreeQlock, flags); |
| |
| hd = shost_priv(sh); |
| hd->ioc = ioc; |
| |
| /* SCSI needs scsi_cmnd lookup table! |
| * (with size equal to req_depth*PtrSz!) |
| */ |
| ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); |
| if (!ioc->ScsiLookup) { |
| error = -ENOMEM; |
| goto out_mptfc_probe; |
| } |
| spin_lock_init(&ioc->scsi_lookup_lock); |
| |
| dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", |
| ioc->name, ioc->ScsiLookup)); |
| |
| hd->last_queue_full = 0; |
| |
| sh->transportt = mptfc_transport_template; |
| error = scsi_add_host (sh, &ioc->pcidev->dev); |
| if(error) { |
| dprintk(ioc, printk(MYIOC_s_ERR_FMT |
| "scsi_add_host failed\n", ioc->name)); |
| goto out_mptfc_probe; |
| } |
| |
| /* initialize workqueue */ |
| |
| snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), |
| "mptfc_wq_%d", sh->host_no); |
| ioc->fc_rescan_work_q = |
| alloc_ordered_workqueue(ioc->fc_rescan_work_q_name, |
| WQ_MEM_RECLAIM); |
| if (!ioc->fc_rescan_work_q) { |
| error = -ENOMEM; |
| goto out_mptfc_host; |
| } |
| |
| /* |
| * Pre-fetch FC port WWN and stuff... |
| * (FCPortPage0_t stuff) |
| */ |
| for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { |
| (void) mptfc_GetFcPortPage0(ioc, ii); |
| } |
| mptfc_SetFcPortPage1_defaults(ioc); |
| |
| /* |
| * scan for rports - |
| * by doing it via the workqueue, some locking is eliminated |
| */ |
| |
| queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); |
| flush_workqueue(ioc->fc_rescan_work_q); |
| |
| return 0; |
| |
| out_mptfc_host: |
| scsi_remove_host(sh); |
| |
| out_mptfc_probe: |
| |
| mptscsih_remove(pdev); |
| return error; |
| } |
| |
| static struct pci_driver mptfc_driver = { |
| .name = "mptfc", |
| .id_table = mptfc_pci_table, |
| .probe = mptfc_probe, |
| .remove = mptfc_remove, |
| .shutdown = mptscsih_shutdown, |
| #ifdef CONFIG_PM |
| .suspend = mptscsih_suspend, |
| .resume = mptscsih_resume, |
| #endif |
| }; |
| |
| static int |
| mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) |
| { |
| MPT_SCSI_HOST *hd; |
| u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; |
| unsigned long flags; |
| int rc=1; |
| |
| if (ioc->bus_type != FC) |
| return 0; |
| |
| devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n", |
| ioc->name, event)); |
| |
| if (ioc->sh == NULL || |
| ((hd = shost_priv(ioc->sh)) == NULL)) |
| return 1; |
| |
| switch (event) { |
| case MPI_EVENT_RESCAN: |
| spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); |
| if (ioc->fc_rescan_work_q) { |
| queue_work(ioc->fc_rescan_work_q, |
| &ioc->fc_rescan_work); |
| } |
| spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); |
| break; |
| case MPI_EVENT_LINK_STATUS_CHANGE: |
| spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); |
| if (ioc->fc_rescan_work_q) { |
| queue_work(ioc->fc_rescan_work_q, |
| &ioc->fc_lsc_work); |
| } |
| spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); |
| break; |
| default: |
| rc = mptscsih_event_process(ioc,pEvReply); |
| break; |
| } |
| return rc; |
| } |
| |
| static int |
| mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) |
| { |
| int rc; |
| unsigned long flags; |
| |
| rc = mptscsih_ioc_reset(ioc,reset_phase); |
| if ((ioc->bus_type != FC) || (!rc)) |
| return rc; |
| |
| |
| dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT |
| ": IOC %s_reset routed to FC host driver!\n",ioc->name, |
| reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( |
| reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); |
| |
| if (reset_phase == MPT_IOC_SETUP_RESET) { |
| spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); |
| if (ioc->fc_rescan_work_q) { |
| queue_work(ioc->fc_rescan_work_q, |
| &ioc->fc_setup_reset_work); |
| } |
| spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); |
| } |
| |
| else if (reset_phase == MPT_IOC_PRE_RESET) { |
| } |
| |
| else { /* MPT_IOC_POST_RESET */ |
| mptfc_SetFcPortPage1_defaults(ioc); |
| spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); |
| if (ioc->fc_rescan_work_q) { |
| queue_work(ioc->fc_rescan_work_q, |
| &ioc->fc_rescan_work); |
| } |
| spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); |
| } |
| return 1; |
| } |
| |
| /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| /** |
| * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. |
| * |
| * Returns 0 for success, non-zero for failure. |
| */ |
| static int __init |
| mptfc_init(void) |
| { |
| int error; |
| |
| show_mptmod_ver(my_NAME, my_VERSION); |
| |
| /* sanity check module parameters */ |
| if (mptfc_dev_loss_tmo <= 0) |
| mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; |
| |
| mptfc_transport_template = |
| fc_attach_transport(&mptfc_transport_functions); |
| |
| if (!mptfc_transport_template) |
| return -ENODEV; |
| |
| mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER, |
| "mptscsih_scandv_complete"); |
| mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER, |
| "mptscsih_scandv_complete"); |
| mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER, |
| "mptscsih_scandv_complete"); |
| |
| mpt_event_register(mptfcDoneCtx, mptfc_event_process); |
| mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset); |
| |
| error = pci_register_driver(&mptfc_driver); |
| if (error) |
| fc_release_transport(mptfc_transport_template); |
| |
| return error; |
| } |
| |
| /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| /** |
| * mptfc_remove - Remove fc infrastructure for devices |
| * @pdev: Pointer to pci_dev structure |
| * |
| */ |
| static void mptfc_remove(struct pci_dev *pdev) |
| { |
| MPT_ADAPTER *ioc = pci_get_drvdata(pdev); |
| struct mptfc_rport_info *p, *n; |
| struct workqueue_struct *work_q; |
| unsigned long flags; |
| int ii; |
| |
| /* destroy workqueue */ |
| if ((work_q=ioc->fc_rescan_work_q)) { |
| spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); |
| ioc->fc_rescan_work_q = NULL; |
| spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); |
| destroy_workqueue(work_q); |
| } |
| |
| fc_remove_host(ioc->sh); |
| |
| list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { |
| list_del(&p->list); |
| kfree(p); |
| } |
| |
| for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { |
| if (ioc->fc_data.fc_port_page1[ii].data) { |
| pci_free_consistent(ioc->pcidev, |
| ioc->fc_data.fc_port_page1[ii].pg_sz, |
| (u8 *) ioc->fc_data.fc_port_page1[ii].data, |
| ioc->fc_data.fc_port_page1[ii].dma); |
| ioc->fc_data.fc_port_page1[ii].data = NULL; |
| } |
| } |
| |
| scsi_remove_host(ioc->sh); |
| |
| mptscsih_remove(pdev); |
| } |
| |
| /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| /** |
| * mptfc_exit - Unregisters MPT adapter(s) |
| * |
| */ |
| static void __exit |
| mptfc_exit(void) |
| { |
| pci_unregister_driver(&mptfc_driver); |
| fc_release_transport(mptfc_transport_template); |
| |
| mpt_reset_deregister(mptfcDoneCtx); |
| mpt_event_deregister(mptfcDoneCtx); |
| |
| mpt_deregister(mptfcInternalCtx); |
| mpt_deregister(mptfcTaskCtx); |
| mpt_deregister(mptfcDoneCtx); |
| } |
| |
| module_init(mptfc_init); |
| module_exit(mptfc_exit); |