| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Sreekanth Reddy | 7891 | 92.12% | 6 | 30.00% |
| Christoph Hellwig | 368 | 4.30% | 2 | 10.00% |
| Joe Perches | 206 | 2.40% | 3 | 15.00% |
| Suganath Prabu Subramani | 51 | 0.60% | 5 | 25.00% |
| Bart Van Assche | 26 | 0.30% | 2 | 10.00% |
| Joe Lawrence | 22 | 0.26% | 1 | 5.00% |
| Kent Overstreet | 2 | 0.02% | 1 | 5.00% |
| Total | 8566 | 20 |
/* * SAS Transport Layer for MPT (Message Passing Technology) based controllers * * This code is based on drivers/scsi/mpt3sas/mpt3sas_transport.c * Copyright (C) 2012-2014 LSI Corporation * Copyright (C) 2013-2014 Avago Technologies * (mailto: MPT-FusionLinux.pdl@avagotech.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; either version 2 * of the License, or (at your option) any later version. * * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, * USA. */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/sched.h> #include <linux/workqueue.h> #include <linux/delay.h> #include <linux/pci.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> #include <scsi/scsi_device.h> #include <scsi/scsi_host.h> #include <scsi/scsi_transport_sas.h> #include <scsi/scsi_dbg.h> #include "mpt3sas_base.h" /** * _transport_sas_node_find_by_sas_address - sas node search * @ioc: per adapter object * @sas_address: sas address of expander or sas host * Context: Calling function should acquire ioc->sas_node_lock. * * Search for either hba phys or expander device based on handle, then returns * the sas_node object. */ static struct _sas_node * _transport_sas_node_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc, u64 sas_address) { if (ioc->sas_hba.sas_address == sas_address) return &ioc->sas_hba; else return mpt3sas_scsih_expander_find_by_sas_address(ioc, sas_address); } /** * _transport_convert_phy_link_rate - * @link_rate: link rate returned from mpt firmware * * Convert link_rate from mpi fusion into sas_transport form. */ static enum sas_linkrate _transport_convert_phy_link_rate(u8 link_rate) { enum sas_linkrate rc; switch (link_rate) { case MPI2_SAS_NEG_LINK_RATE_1_5: rc = SAS_LINK_RATE_1_5_GBPS; break; case MPI2_SAS_NEG_LINK_RATE_3_0: rc = SAS_LINK_RATE_3_0_GBPS; break; case MPI2_SAS_NEG_LINK_RATE_6_0: rc = SAS_LINK_RATE_6_0_GBPS; break; case MPI25_SAS_NEG_LINK_RATE_12_0: rc = SAS_LINK_RATE_12_0_GBPS; break; case MPI2_SAS_NEG_LINK_RATE_PHY_DISABLED: rc = SAS_PHY_DISABLED; break; case MPI2_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED: rc = SAS_LINK_RATE_FAILED; break; case MPI2_SAS_NEG_LINK_RATE_PORT_SELECTOR: rc = SAS_SATA_PORT_SELECTOR; break; case MPI2_SAS_NEG_LINK_RATE_SMP_RESET_IN_PROGRESS: rc = SAS_PHY_RESET_IN_PROGRESS; break; default: case MPI2_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE: case MPI2_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE: rc = SAS_LINK_RATE_UNKNOWN; break; } return rc; } /** * _transport_set_identify - set identify for phys and end devices * @ioc: per adapter object * @handle: device handle * @identify: sas identify info * * Populates sas identify info. * * Return: 0 for success, non-zero for failure. */ static int _transport_set_identify(struct MPT3SAS_ADAPTER *ioc, u16 handle, struct sas_identify *identify) { Mpi2SasDevicePage0_t sas_device_pg0; Mpi2ConfigReply_t mpi_reply; u32 device_info; u32 ioc_status; if (ioc->shost_recovery || ioc->pci_error_recovery) { ioc_info(ioc, "%s: host reset in progress!\n", __func__); return -EFAULT; } if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); return -ENXIO; } ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { ioc_err(ioc, "handle(0x%04x), ioc_status(0x%04x) failure at %s:%d/%s()!\n", handle, ioc_status, __FILE__, __LINE__, __func__); return -EIO; } memset(identify, 0, sizeof(struct sas_identify)); device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); /* sas_address */ identify->sas_address = le64_to_cpu(sas_device_pg0.SASAddress); /* phy number of the parent device this device is linked to */ identify->phy_identifier = sas_device_pg0.PhyNum; /* device_type */ switch (device_info & MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) { case MPI2_SAS_DEVICE_INFO_NO_DEVICE: identify->device_type = SAS_PHY_UNUSED; break; case MPI2_SAS_DEVICE_INFO_END_DEVICE: identify->device_type = SAS_END_DEVICE; break; case MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER: identify->device_type = SAS_EDGE_EXPANDER_DEVICE; break; case MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER: identify->device_type = SAS_FANOUT_EXPANDER_DEVICE; break; } /* initiator_port_protocols */ if (device_info & MPI2_SAS_DEVICE_INFO_SSP_INITIATOR) identify->initiator_port_protocols |= SAS_PROTOCOL_SSP; if (device_info & MPI2_SAS_DEVICE_INFO_STP_INITIATOR) identify->initiator_port_protocols |= SAS_PROTOCOL_STP; if (device_info & MPI2_SAS_DEVICE_INFO_SMP_INITIATOR) identify->initiator_port_protocols |= SAS_PROTOCOL_SMP; if (device_info & MPI2_SAS_DEVICE_INFO_SATA_HOST) identify->initiator_port_protocols |= SAS_PROTOCOL_SATA; /* target_port_protocols */ if (device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) identify->target_port_protocols |= SAS_PROTOCOL_SSP; if (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) identify->target_port_protocols |= SAS_PROTOCOL_STP; if (device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) identify->target_port_protocols |= SAS_PROTOCOL_SMP; if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) identify->target_port_protocols |= SAS_PROTOCOL_SATA; return 0; } /** * mpt3sas_transport_done - internal transport layer callback handler. * @ioc: per adapter object * @smid: system request message index * @msix_index: MSIX table index supplied by the OS * @reply: reply message frame(lower 32bit addr) * * Callback handler when sending internal generated transport cmds. * The callback index passed is `ioc->transport_cb_idx` * * Return: 1 meaning mf should be freed from _base_interrupt * 0 means the mf is freed from this function. */ u8 mpt3sas_transport_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) { MPI2DefaultReply_t *mpi_reply; mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply); if (ioc->transport_cmds.status == MPT3_CMD_NOT_USED) return 1; if (ioc->transport_cmds.smid != smid) return 1; ioc->transport_cmds.status |= MPT3_CMD_COMPLETE; if (mpi_reply) { memcpy(ioc->transport_cmds.reply, mpi_reply, mpi_reply->MsgLength*4); ioc->transport_cmds.status |= MPT3_CMD_REPLY_VALID; } ioc->transport_cmds.status &= ~MPT3_CMD_PENDING; complete(&ioc->transport_cmds.done); return 1; } /* report manufacture request structure */ struct rep_manu_request { u8 smp_frame_type; u8 function; u8 reserved; u8 request_length; }; /* report manufacture reply structure */ struct rep_manu_reply { u8 smp_frame_type; /* 0x41 */ u8 function; /* 0x01 */ u8 function_result; u8 response_length; u16 expander_change_count; u8 reserved0[2]; u8 sas_format; u8 reserved2[3]; u8 vendor_id[SAS_EXPANDER_VENDOR_ID_LEN]; u8 product_id[SAS_EXPANDER_PRODUCT_ID_LEN]; u8 product_rev[SAS_EXPANDER_PRODUCT_REV_LEN]; u8 component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN]; u16 component_id; u8 component_revision_id; u8 reserved3; u8 vendor_specific[8]; }; /** * transport_expander_report_manufacture - obtain SMP report_manufacture * @ioc: per adapter object * @sas_address: expander sas address * @edev: the sas_expander_device object * * Fills in the sas_expander_device object when SMP port is created. * * Return: 0 for success, non-zero for failure. */ static int _transport_expander_report_manufacture(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, struct sas_expander_device *edev) { Mpi2SmpPassthroughRequest_t *mpi_request; Mpi2SmpPassthroughReply_t *mpi_reply; struct rep_manu_reply *manufacture_reply; struct rep_manu_request *manufacture_request; int rc; u16 smid; void *psge; u8 issue_reset = 0; void *data_out = NULL; dma_addr_t data_out_dma; dma_addr_t data_in_dma; size_t data_in_sz; size_t data_out_sz; if (ioc->shost_recovery || ioc->pci_error_recovery) { ioc_info(ioc, "%s: host reset in progress!\n", __func__); return -EFAULT; } mutex_lock(&ioc->transport_cmds.mutex); if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { ioc_err(ioc, "%s: transport_cmds in use\n", __func__); rc = -EAGAIN; goto out; } ioc->transport_cmds.status = MPT3_CMD_PENDING; rc = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT); if (rc) goto out; smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); if (!smid) { ioc_err(ioc, "%s: failed obtaining a smid\n", __func__); rc = -EAGAIN; goto out; } rc = 0; mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); ioc->transport_cmds.smid = smid; data_out_sz = sizeof(struct rep_manu_request); data_in_sz = sizeof(struct rep_manu_reply); data_out = dma_alloc_coherent(&ioc->pdev->dev, data_out_sz + data_in_sz, &data_out_dma, GFP_KERNEL); if (!data_out) { pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -ENOMEM; mpt3sas_base_free_smid(ioc, smid); goto out; } data_in_dma = data_out_dma + sizeof(struct rep_manu_request); manufacture_request = data_out; manufacture_request->smp_frame_type = 0x40; manufacture_request->function = 1; manufacture_request->reserved = 0; manufacture_request->request_length = 0; memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; mpi_request->PhysicalPort = 0xFF; mpi_request->SASAddress = cpu_to_le64(sas_address); mpi_request->RequestDataLength = cpu_to_le16(data_out_sz); psge = &mpi_request->SGL; ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma, data_in_sz); dtransportprintk(ioc, ioc_info(ioc, "report_manufacture - send to sas_addr(0x%016llx)\n", (u64)sas_address)); init_completion(&ioc->transport_cmds.done); ioc->put_smid_default(ioc, smid); wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ); if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { ioc_err(ioc, "%s: timeout\n", __func__); _debug_dump_mf(mpi_request, sizeof(Mpi2SmpPassthroughRequest_t)/4); if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) issue_reset = 1; goto issue_host_reset; } dtransportprintk(ioc, ioc_info(ioc, "report_manufacture - complete\n")); if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { u8 *tmp; mpi_reply = ioc->transport_cmds.reply; dtransportprintk(ioc, ioc_info(ioc, "report_manufacture - reply data transfer size(%d)\n", le16_to_cpu(mpi_reply->ResponseDataLength))); if (le16_to_cpu(mpi_reply->ResponseDataLength) != sizeof(struct rep_manu_reply)) goto out; manufacture_reply = data_out + sizeof(struct rep_manu_request); strncpy(edev->vendor_id, manufacture_reply->vendor_id, SAS_EXPANDER_VENDOR_ID_LEN); strncpy(edev->product_id, manufacture_reply->product_id, SAS_EXPANDER_PRODUCT_ID_LEN); strncpy(edev->product_rev, manufacture_reply->product_rev, SAS_EXPANDER_PRODUCT_REV_LEN); edev->level = manufacture_reply->sas_format & 1; if (edev->level) { strncpy(edev->component_vendor_id, manufacture_reply->component_vendor_id, SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN); tmp = (u8 *)&manufacture_reply->component_id; edev->component_id = tmp[0] << 8 | tmp[1]; edev->component_revision_id = manufacture_reply->component_revision_id; } } else dtransportprintk(ioc, ioc_info(ioc, "report_manufacture - no reply\n")); issue_host_reset: if (issue_reset) mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); out: ioc->transport_cmds.status = MPT3_CMD_NOT_USED; if (data_out) dma_free_coherent(&ioc->pdev->dev, data_out_sz + data_in_sz, data_out, data_out_dma); mutex_unlock(&ioc->transport_cmds.mutex); return rc; } /** * _transport_delete_port - helper function to removing a port * @ioc: per adapter object * @mpt3sas_port: mpt3sas per port object */ static void _transport_delete_port(struct MPT3SAS_ADAPTER *ioc, struct _sas_port *mpt3sas_port) { u64 sas_address = mpt3sas_port->remote_identify.sas_address; enum sas_device_type device_type = mpt3sas_port->remote_identify.device_type; dev_printk(KERN_INFO, &mpt3sas_port->port->dev, "remove: sas_addr(0x%016llx)\n", (unsigned long long) sas_address); ioc->logging_level |= MPT_DEBUG_TRANSPORT; if (device_type == SAS_END_DEVICE) mpt3sas_device_remove_by_sas_address(ioc, sas_address); else if (device_type == SAS_EDGE_EXPANDER_DEVICE || device_type == SAS_FANOUT_EXPANDER_DEVICE) mpt3sas_expander_remove(ioc, sas_address); ioc->logging_level &= ~MPT_DEBUG_TRANSPORT; } /** * _transport_delete_phy - helper function to removing single phy from port * @ioc: per adapter object * @mpt3sas_port: mpt3sas per port object * @mpt3sas_phy: mpt3sas per phy object */ static void _transport_delete_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_port *mpt3sas_port, struct _sas_phy *mpt3sas_phy) { u64 sas_address = mpt3sas_port->remote_identify.sas_address; dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev, "remove: sas_addr(0x%016llx), phy(%d)\n", (unsigned long long) sas_address, mpt3sas_phy->phy_id); list_del(&mpt3sas_phy->port_siblings); mpt3sas_port->num_phys--; sas_port_delete_phy(mpt3sas_port->port, mpt3sas_phy->phy); mpt3sas_phy->phy_belongs_to_port = 0; } /** * _transport_add_phy - helper function to adding single phy to port * @ioc: per adapter object * @mpt3sas_port: mpt3sas per port object * @mpt3sas_phy: mpt3sas per phy object */ static void _transport_add_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_port *mpt3sas_port, struct _sas_phy *mpt3sas_phy) { u64 sas_address = mpt3sas_port->remote_identify.sas_address; dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev, "add: sas_addr(0x%016llx), phy(%d)\n", (unsigned long long) sas_address, mpt3sas_phy->phy_id); list_add_tail(&mpt3sas_phy->port_siblings, &mpt3sas_port->phy_list); mpt3sas_port->num_phys++; sas_port_add_phy(mpt3sas_port->port, mpt3sas_phy->phy); mpt3sas_phy->phy_belongs_to_port = 1; } /** * _transport_add_phy_to_an_existing_port - adding new phy to existing port * @ioc: per adapter object * @sas_node: sas node object (either expander or sas host) * @mpt3sas_phy: mpt3sas per phy object * @sas_address: sas address of device/expander were phy needs to be added to */ static void _transport_add_phy_to_an_existing_port(struct MPT3SAS_ADAPTER *ioc, struct _sas_node *sas_node, struct _sas_phy *mpt3sas_phy, u64 sas_address) { struct _sas_port *mpt3sas_port; struct _sas_phy *phy_srch; if (mpt3sas_phy->phy_belongs_to_port == 1) return; list_for_each_entry(mpt3sas_port, &sas_node->sas_port_list, port_list) { if (mpt3sas_port->remote_identify.sas_address != sas_address) continue; list_for_each_entry(phy_srch, &mpt3sas_port->phy_list, port_siblings) { if (phy_srch == mpt3sas_phy) return; } _transport_add_phy(ioc, mpt3sas_port, mpt3sas_phy); return; } } /** * _transport_del_phy_from_an_existing_port - delete phy from existing port * @ioc: per adapter object * @sas_node: sas node object (either expander or sas host) * @mpt3sas_phy: mpt3sas per phy object */ static void _transport_del_phy_from_an_existing_port(struct MPT3SAS_ADAPTER *ioc, struct _sas_node *sas_node, struct _sas_phy *mpt3sas_phy) { struct _sas_port *mpt3sas_port, *next; struct _sas_phy *phy_srch; if (mpt3sas_phy->phy_belongs_to_port == 0) return; list_for_each_entry_safe(mpt3sas_port, next, &sas_node->sas_port_list, port_list) { list_for_each_entry(phy_srch, &mpt3sas_port->phy_list, port_siblings) { if (phy_srch != mpt3sas_phy) continue; if (mpt3sas_port->num_phys == 1) _transport_delete_port(ioc, mpt3sas_port); else _transport_delete_phy(ioc, mpt3sas_port, mpt3sas_phy); return; } } } /** * _transport_sanity_check - sanity check when adding a new port * @ioc: per adapter object * @sas_node: sas node object (either expander or sas host) * @sas_address: sas address of device being added * * See the explanation above from _transport_delete_duplicate_port */ static void _transport_sanity_check(struct MPT3SAS_ADAPTER *ioc, struct _sas_node *sas_node, u64 sas_address) { int i; for (i = 0; i < sas_node->num_phys; i++) { if (sas_node->phy[i].remote_identify.sas_address != sas_address) continue; if (sas_node->phy[i].phy_belongs_to_port == 1) _transport_del_phy_from_an_existing_port(ioc, sas_node, &sas_node->phy[i]); } } /** * mpt3sas_transport_port_add - insert port to the list * @ioc: per adapter object * @handle: handle of attached device * @sas_address: sas address of parent expander or sas host * Context: This function will acquire ioc->sas_node_lock. * * Adding new port object to the sas_node->sas_port_list. * * Return: mpt3sas_port. */ struct _sas_port * mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc, u16 handle, u64 sas_address) { struct _sas_phy *mpt3sas_phy, *next; struct _sas_port *mpt3sas_port; unsigned long flags; struct _sas_node *sas_node; struct sas_rphy *rphy; struct _sas_device *sas_device = NULL; int i; struct sas_port *port; mpt3sas_port = kzalloc(sizeof(struct _sas_port), GFP_KERNEL); if (!mpt3sas_port) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); return NULL; } INIT_LIST_HEAD(&mpt3sas_port->port_list); INIT_LIST_HEAD(&mpt3sas_port->phy_list); spin_lock_irqsave(&ioc->sas_node_lock, flags); sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address); spin_unlock_irqrestore(&ioc->sas_node_lock, flags); if (!sas_node) { ioc_err(ioc, "%s: Could not find parent sas_address(0x%016llx)!\n", __func__, (u64)sas_address); goto out_fail; } if ((_transport_set_identify(ioc, handle, &mpt3sas_port->remote_identify))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); goto out_fail; } if (mpt3sas_port->remote_identify.device_type == SAS_PHY_UNUSED) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); goto out_fail; } _transport_sanity_check(ioc, sas_node, mpt3sas_port->remote_identify.sas_address); for (i = 0; i < sas_node->num_phys; i++) { if (sas_node->phy[i].remote_identify.sas_address != mpt3sas_port->remote_identify.sas_address) continue; list_add_tail(&sas_node->phy[i].port_siblings, &mpt3sas_port->phy_list); mpt3sas_port->num_phys++; } if (!mpt3sas_port->num_phys) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); goto out_fail; } if (!sas_node->parent_dev) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); goto out_fail; } port = sas_port_alloc_num(sas_node->parent_dev); if ((sas_port_add(port))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); goto out_fail; } list_for_each_entry(mpt3sas_phy, &mpt3sas_port->phy_list, port_siblings) { if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) dev_printk(KERN_INFO, &port->dev, "add: handle(0x%04x), sas_addr(0x%016llx), phy(%d)\n", handle, (unsigned long long) mpt3sas_port->remote_identify.sas_address, mpt3sas_phy->phy_id); sas_port_add_phy(port, mpt3sas_phy->phy); mpt3sas_phy->phy_belongs_to_port = 1; } mpt3sas_port->port = port; if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) rphy = sas_end_device_alloc(port); else rphy = sas_expander_alloc(port, mpt3sas_port->remote_identify.device_type); rphy->identify = mpt3sas_port->remote_identify; if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) { sas_device = mpt3sas_get_sdev_by_addr(ioc, mpt3sas_port->remote_identify.sas_address); if (!sas_device) { dfailprintk(ioc, ioc_info(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__)); goto out_fail; } sas_device->pend_sas_rphy_add = 1; } if ((sas_rphy_add(rphy))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); } if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) { sas_device->pend_sas_rphy_add = 0; sas_device_put(sas_device); } dev_info(&rphy->dev, "add: handle(0x%04x), sas_addr(0x%016llx)\n", handle, (unsigned long long)mpt3sas_port->remote_identify.sas_address); mpt3sas_port->rphy = rphy; spin_lock_irqsave(&ioc->sas_node_lock, flags); list_add_tail(&mpt3sas_port->port_list, &sas_node->sas_port_list); spin_unlock_irqrestore(&ioc->sas_node_lock, flags); /* fill in report manufacture */ if (mpt3sas_port->remote_identify.device_type == MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER || mpt3sas_port->remote_identify.device_type == MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) _transport_expander_report_manufacture(ioc, mpt3sas_port->remote_identify.sas_address, rphy_to_expander_device(rphy)); return mpt3sas_port; out_fail: list_for_each_entry_safe(mpt3sas_phy, next, &mpt3sas_port->phy_list, port_siblings) list_del(&mpt3sas_phy->port_siblings); kfree(mpt3sas_port); return NULL; } /** * mpt3sas_transport_port_remove - remove port from the list * @ioc: per adapter object * @sas_address: sas address of attached device * @sas_address_parent: sas address of parent expander or sas host * Context: This function will acquire ioc->sas_node_lock. * * Removing object and freeing associated memory from the * ioc->sas_port_list. */ void mpt3sas_transport_port_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, u64 sas_address_parent) { int i; unsigned long flags; struct _sas_port *mpt3sas_port, *next; struct _sas_node *sas_node; u8 found = 0; struct _sas_phy *mpt3sas_phy, *next_phy; spin_lock_irqsave(&ioc->sas_node_lock, flags); sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address_parent); if (!sas_node) { spin_unlock_irqrestore(&ioc->sas_node_lock, flags); return; } list_for_each_entry_safe(mpt3sas_port, next, &sas_node->sas_port_list, port_list) { if (mpt3sas_port->remote_identify.sas_address != sas_address) continue; found = 1; list_del(&mpt3sas_port->port_list); goto out; } out: if (!found) { spin_unlock_irqrestore(&ioc->sas_node_lock, flags); return; } for (i = 0; i < sas_node->num_phys; i++) { if (sas_node->phy[i].remote_identify.sas_address == sas_address) memset(&sas_node->phy[i].remote_identify, 0 , sizeof(struct sas_identify)); } spin_unlock_irqrestore(&ioc->sas_node_lock, flags); list_for_each_entry_safe(mpt3sas_phy, next_phy, &mpt3sas_port->phy_list, port_siblings) { if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) dev_printk(KERN_INFO, &mpt3sas_port->port->dev, "remove: sas_addr(0x%016llx), phy(%d)\n", (unsigned long long) mpt3sas_port->remote_identify.sas_address, mpt3sas_phy->phy_id); mpt3sas_phy->phy_belongs_to_port = 0; if (!ioc->remove_host) sas_port_delete_phy(mpt3sas_port->port, mpt3sas_phy->phy); list_del(&mpt3sas_phy->port_siblings); } if (!ioc->remove_host) sas_port_delete(mpt3sas_port->port); ioc_info(ioc, "%s: removed: sas_addr(0x%016llx)\n", __func__, (unsigned long long)sas_address); kfree(mpt3sas_port); } /** * mpt3sas_transport_add_host_phy - report sas_host phy to transport * @ioc: per adapter object * @mpt3sas_phy: mpt3sas per phy object * @phy_pg0: sas phy page 0 * @parent_dev: parent device class object * * Return: 0 for success, non-zero for failure. */ int mpt3sas_transport_add_host_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy *mpt3sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev) { struct sas_phy *phy; int phy_index = mpt3sas_phy->phy_id; INIT_LIST_HEAD(&mpt3sas_phy->port_siblings); phy = sas_phy_alloc(parent_dev, phy_index); if (!phy) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); return -1; } if ((_transport_set_identify(ioc, mpt3sas_phy->handle, &mpt3sas_phy->identify))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); sas_phy_free(phy); return -1; } phy->identify = mpt3sas_phy->identify; mpt3sas_phy->attached_handle = le16_to_cpu(phy_pg0.AttachedDevHandle); if (mpt3sas_phy->attached_handle) _transport_set_identify(ioc, mpt3sas_phy->attached_handle, &mpt3sas_phy->remote_identify); phy->identify.phy_identifier = mpt3sas_phy->phy_id; phy->negotiated_linkrate = _transport_convert_phy_link_rate( phy_pg0.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); phy->minimum_linkrate_hw = _transport_convert_phy_link_rate( phy_pg0.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK); phy->maximum_linkrate_hw = _transport_convert_phy_link_rate( phy_pg0.HwLinkRate >> 4); phy->minimum_linkrate = _transport_convert_phy_link_rate( phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); phy->maximum_linkrate = _transport_convert_phy_link_rate( phy_pg0.ProgrammedLinkRate >> 4); if ((sas_phy_add(phy))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); sas_phy_free(phy); return -1; } if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) dev_printk(KERN_INFO, &phy->dev, "add: handle(0x%04x), sas_addr(0x%016llx)\n" "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", mpt3sas_phy->handle, (unsigned long long) mpt3sas_phy->identify.sas_address, mpt3sas_phy->attached_handle, (unsigned long long) mpt3sas_phy->remote_identify.sas_address); mpt3sas_phy->phy = phy; return 0; } /** * mpt3sas_transport_add_expander_phy - report expander phy to transport * @ioc: per adapter object * @mpt3sas_phy: mpt3sas per phy object * @expander_pg1: expander page 1 * @parent_dev: parent device class object * * Return: 0 for success, non-zero for failure. */ int mpt3sas_transport_add_expander_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy *mpt3sas_phy, Mpi2ExpanderPage1_t expander_pg1, struct device *parent_dev) { struct sas_phy *phy; int phy_index = mpt3sas_phy->phy_id; INIT_LIST_HEAD(&mpt3sas_phy->port_siblings); phy = sas_phy_alloc(parent_dev, phy_index); if (!phy) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); return -1; } if ((_transport_set_identify(ioc, mpt3sas_phy->handle, &mpt3sas_phy->identify))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); sas_phy_free(phy); return -1; } phy->identify = mpt3sas_phy->identify; mpt3sas_phy->attached_handle = le16_to_cpu(expander_pg1.AttachedDevHandle); if (mpt3sas_phy->attached_handle) _transport_set_identify(ioc, mpt3sas_phy->attached_handle, &mpt3sas_phy->remote_identify); phy->identify.phy_identifier = mpt3sas_phy->phy_id; phy->negotiated_linkrate = _transport_convert_phy_link_rate( expander_pg1.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); phy->minimum_linkrate_hw = _transport_convert_phy_link_rate( expander_pg1.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK); phy->maximum_linkrate_hw = _transport_convert_phy_link_rate( expander_pg1.HwLinkRate >> 4); phy->minimum_linkrate = _transport_convert_phy_link_rate( expander_pg1.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); phy->maximum_linkrate = _transport_convert_phy_link_rate( expander_pg1.ProgrammedLinkRate >> 4); if ((sas_phy_add(phy))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); sas_phy_free(phy); return -1; } if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) dev_printk(KERN_INFO, &phy->dev, "add: handle(0x%04x), sas_addr(0x%016llx)\n" "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", mpt3sas_phy->handle, (unsigned long long) mpt3sas_phy->identify.sas_address, mpt3sas_phy->attached_handle, (unsigned long long) mpt3sas_phy->remote_identify.sas_address); mpt3sas_phy->phy = phy; return 0; } /** * mpt3sas_transport_update_links - refreshing phy link changes * @ioc: per adapter object * @sas_address: sas address of parent expander or sas host * @handle: attached device handle * @phy_number: phy number * @link_rate: new link rate */ void mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, u16 handle, u8 phy_number, u8 link_rate) { unsigned long flags; struct _sas_node *sas_node; struct _sas_phy *mpt3sas_phy; if (ioc->shost_recovery || ioc->pci_error_recovery) return; spin_lock_irqsave(&ioc->sas_node_lock, flags); sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address); if (!sas_node) { spin_unlock_irqrestore(&ioc->sas_node_lock, flags); return; } mpt3sas_phy = &sas_node->phy[phy_number]; mpt3sas_phy->attached_handle = handle; spin_unlock_irqrestore(&ioc->sas_node_lock, flags); if (handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5)) { _transport_set_identify(ioc, handle, &mpt3sas_phy->remote_identify); _transport_add_phy_to_an_existing_port(ioc, sas_node, mpt3sas_phy, mpt3sas_phy->remote_identify.sas_address); } else memset(&mpt3sas_phy->remote_identify, 0 , sizeof(struct sas_identify)); if (mpt3sas_phy->phy) mpt3sas_phy->phy->negotiated_linkrate = _transport_convert_phy_link_rate(link_rate); if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev, "refresh: parent sas_addr(0x%016llx),\n" "\tlink_rate(0x%02x), phy(%d)\n" "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", (unsigned long long)sas_address, link_rate, phy_number, handle, (unsigned long long) mpt3sas_phy->remote_identify.sas_address); } static inline void * phy_to_ioc(struct sas_phy *phy) { struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); return shost_priv(shost); } static inline void * rphy_to_ioc(struct sas_rphy *rphy) { struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent); return shost_priv(shost); } /* report phy error log structure */ struct phy_error_log_request { u8 smp_frame_type; /* 0x40 */ u8 function; /* 0x11 */ u8 allocated_response_length; u8 request_length; /* 02 */ u8 reserved_1[5]; u8 phy_identifier; u8 reserved_2[2]; }; /* report phy error log reply structure */ struct phy_error_log_reply { u8 smp_frame_type; /* 0x41 */ u8 function; /* 0x11 */ u8 function_result; u8 response_length; __be16 expander_change_count; u8 reserved_1[3]; u8 phy_identifier; u8 reserved_2[2]; __be32 invalid_dword; __be32 running_disparity_error; __be32 loss_of_dword_sync; __be32 phy_reset_problem; }; /** * _transport_get_expander_phy_error_log - return expander counters * @ioc: per adapter object * @phy: The sas phy object * * Return: 0 for success, non-zero for failure. * */ static int _transport_get_expander_phy_error_log(struct MPT3SAS_ADAPTER *ioc, struct sas_phy *phy) { Mpi2SmpPassthroughRequest_t *mpi_request; Mpi2SmpPassthroughReply_t *mpi_reply; struct phy_error_log_request *phy_error_log_request; struct phy_error_log_reply *phy_error_log_reply; int rc; u16 smid; void *psge; u8 issue_reset = 0; void *data_out = NULL; dma_addr_t data_out_dma; u32 sz; if (ioc->shost_recovery || ioc->pci_error_recovery) { ioc_info(ioc, "%s: host reset in progress!\n", __func__); return -EFAULT; } mutex_lock(&ioc->transport_cmds.mutex); if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { ioc_err(ioc, "%s: transport_cmds in use\n", __func__); rc = -EAGAIN; goto out; } ioc->transport_cmds.status = MPT3_CMD_PENDING; rc = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT); if (rc) goto out; smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); if (!smid) { ioc_err(ioc, "%s: failed obtaining a smid\n", __func__); rc = -EAGAIN; goto out; } mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); ioc->transport_cmds.smid = smid; sz = sizeof(struct phy_error_log_request) + sizeof(struct phy_error_log_reply); data_out = dma_alloc_coherent(&ioc->pdev->dev, sz, &data_out_dma, GFP_KERNEL); if (!data_out) { pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -ENOMEM; mpt3sas_base_free_smid(ioc, smid); goto out; } rc = -EINVAL; memset(data_out, 0, sz); phy_error_log_request = data_out; phy_error_log_request->smp_frame_type = 0x40; phy_error_log_request->function = 0x11; phy_error_log_request->request_length = 2; phy_error_log_request->allocated_response_length = 0; phy_error_log_request->phy_identifier = phy->number; memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; mpi_request->PhysicalPort = 0xFF; mpi_request->VF_ID = 0; /* TODO */ mpi_request->VP_ID = 0; mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address); mpi_request->RequestDataLength = cpu_to_le16(sizeof(struct phy_error_log_request)); psge = &mpi_request->SGL; ioc->build_sg(ioc, psge, data_out_dma, sizeof(struct phy_error_log_request), data_out_dma + sizeof(struct phy_error_log_request), sizeof(struct phy_error_log_reply)); dtransportprintk(ioc, ioc_info(ioc, "phy_error_log - send to sas_addr(0x%016llx), phy(%d)\n", (u64)phy->identify.sas_address, phy->number)); init_completion(&ioc->transport_cmds.done); ioc->put_smid_default(ioc, smid); wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ); if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { ioc_err(ioc, "%s: timeout\n", __func__); _debug_dump_mf(mpi_request, sizeof(Mpi2SmpPassthroughRequest_t)/4); if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) issue_reset = 1; goto issue_host_reset; } dtransportprintk(ioc, ioc_info(ioc, "phy_error_log - complete\n")); if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { mpi_reply = ioc->transport_cmds.reply; dtransportprintk(ioc, ioc_info(ioc, "phy_error_log - reply data transfer size(%d)\n", le16_to_cpu(mpi_reply->ResponseDataLength))); if (le16_to_cpu(mpi_reply->ResponseDataLength) != sizeof(struct phy_error_log_reply)) goto out; phy_error_log_reply = data_out + sizeof(struct phy_error_log_request); dtransportprintk(ioc, ioc_info(ioc, "phy_error_log - function_result(%d)\n", phy_error_log_reply->function_result)); phy->invalid_dword_count = be32_to_cpu(phy_error_log_reply->invalid_dword); phy->running_disparity_error_count = be32_to_cpu(phy_error_log_reply->running_disparity_error); phy->loss_of_dword_sync_count = be32_to_cpu(phy_error_log_reply->loss_of_dword_sync); phy->phy_reset_problem_count = be32_to_cpu(phy_error_log_reply->phy_reset_problem); rc = 0; } else dtransportprintk(ioc, ioc_info(ioc, "phy_error_log - no reply\n")); issue_host_reset: if (issue_reset) mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); out: ioc->transport_cmds.status = MPT3_CMD_NOT_USED; if (data_out) dma_free_coherent(&ioc->pdev->dev, sz, data_out, data_out_dma); mutex_unlock(&ioc->transport_cmds.mutex); return rc; } /** * _transport_get_linkerrors - return phy counters for both hba and expanders * @phy: The sas phy object * * Return: 0 for success, non-zero for failure. * */ static int _transport_get_linkerrors(struct sas_phy *phy) { struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); unsigned long flags; Mpi2ConfigReply_t mpi_reply; Mpi2SasPhyPage1_t phy_pg1; spin_lock_irqsave(&ioc->sas_node_lock, flags); if (_transport_sas_node_find_by_sas_address(ioc, phy->identify.sas_address) == NULL) { spin_unlock_irqrestore(&ioc->sas_node_lock, flags); return -EINVAL; } spin_unlock_irqrestore(&ioc->sas_node_lock, flags); if (phy->identify.sas_address != ioc->sas_hba.sas_address) return _transport_get_expander_phy_error_log(ioc, phy); /* get hba phy error logs */ if ((mpt3sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1, phy->number))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); return -ENXIO; } if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) ioc_info(ioc, "phy(%d), ioc_status (0x%04x), loginfo(0x%08x)\n", phy->number, le16_to_cpu(mpi_reply.IOCStatus), le32_to_cpu(mpi_reply.IOCLogInfo)); phy->invalid_dword_count = le32_to_cpu(phy_pg1.InvalidDwordCount); phy->running_disparity_error_count = le32_to_cpu(phy_pg1.RunningDisparityErrorCount); phy->loss_of_dword_sync_count = le32_to_cpu(phy_pg1.LossDwordSynchCount); phy->phy_reset_problem_count = le32_to_cpu(phy_pg1.PhyResetProblemCount); return 0; } /** * _transport_get_enclosure_identifier - * @rphy: The sas phy object * @identifier: ? * * Obtain the enclosure logical id for an expander. * Return: 0 for success, non-zero for failure. */ static int _transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier) { struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy); struct _sas_device *sas_device; unsigned long flags; int rc; spin_lock_irqsave(&ioc->sas_device_lock, flags); sas_device = __mpt3sas_get_sdev_by_addr(ioc, rphy->identify.sas_address); if (sas_device) { *identifier = sas_device->enclosure_logical_id; rc = 0; sas_device_put(sas_device); } else { *identifier = 0; rc = -ENXIO; } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); return rc; } /** * _transport_get_bay_identifier - * @rphy: The sas phy object * * Return: the slot id for a device that resides inside an enclosure. */ static int _transport_get_bay_identifier(struct sas_rphy *rphy) { struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy); struct _sas_device *sas_device; unsigned long flags; int rc; spin_lock_irqsave(&ioc->sas_device_lock, flags); sas_device = __mpt3sas_get_sdev_by_addr(ioc, rphy->identify.sas_address); if (sas_device) { rc = sas_device->slot; sas_device_put(sas_device); } else { rc = -ENXIO; } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); return rc; } /* phy control request structure */ struct phy_control_request { u8 smp_frame_type; /* 0x40 */ u8 function; /* 0x91 */ u8 allocated_response_length; u8 request_length; /* 0x09 */ u16 expander_change_count; u8 reserved_1[3]; u8 phy_identifier; u8 phy_operation; u8 reserved_2[13]; u64 attached_device_name; u8 programmed_min_physical_link_rate; u8 programmed_max_physical_link_rate; u8 reserved_3[6]; }; /* phy control reply structure */ struct phy_control_reply { u8 smp_frame_type; /* 0x41 */ u8 function; /* 0x11 */ u8 function_result; u8 response_length; }; #define SMP_PHY_CONTROL_LINK_RESET (0x01) #define SMP_PHY_CONTROL_HARD_RESET (0x02) #define SMP_PHY_CONTROL_DISABLE (0x03) /** * _transport_expander_phy_control - expander phy control * @ioc: per adapter object * @phy: The sas phy object * @phy_operation: ? * * Return: 0 for success, non-zero for failure. * */ static int _transport_expander_phy_control(struct MPT3SAS_ADAPTER *ioc, struct sas_phy *phy, u8 phy_operation) { Mpi2SmpPassthroughRequest_t *mpi_request; Mpi2SmpPassthroughReply_t *mpi_reply; struct phy_control_request *phy_control_request; struct phy_control_reply *phy_control_reply; int rc; u16 smid; void *psge; u8 issue_reset = 0; void *data_out = NULL; dma_addr_t data_out_dma; u32 sz; if (ioc->shost_recovery || ioc->pci_error_recovery) { ioc_info(ioc, "%s: host reset in progress!\n", __func__); return -EFAULT; } mutex_lock(&ioc->transport_cmds.mutex); if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { ioc_err(ioc, "%s: transport_cmds in use\n", __func__); rc = -EAGAIN; goto out; } ioc->transport_cmds.status = MPT3_CMD_PENDING; rc = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT); if (rc) goto out; smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); if (!smid) { ioc_err(ioc, "%s: failed obtaining a smid\n", __func__); rc = -EAGAIN; goto out; } mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); ioc->transport_cmds.smid = smid; sz = sizeof(struct phy_control_request) + sizeof(struct phy_control_reply); data_out = dma_alloc_coherent(&ioc->pdev->dev, sz, &data_out_dma, GFP_KERNEL); if (!data_out) { pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -ENOMEM; mpt3sas_base_free_smid(ioc, smid); goto out; } rc = -EINVAL; memset(data_out, 0, sz); phy_control_request = data_out; phy_control_request->smp_frame_type = 0x40; phy_control_request->function = 0x91; phy_control_request->request_length = 9; phy_control_request->allocated_response_length = 0; phy_control_request->phy_identifier = phy->number; phy_control_request->phy_operation = phy_operation; phy_control_request->programmed_min_physical_link_rate = phy->minimum_linkrate << 4; phy_control_request->programmed_max_physical_link_rate = phy->maximum_linkrate << 4; memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; mpi_request->PhysicalPort = 0xFF; mpi_request->VF_ID = 0; /* TODO */ mpi_request->VP_ID = 0; mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address); mpi_request->RequestDataLength = cpu_to_le16(sizeof(struct phy_error_log_request)); psge = &mpi_request->SGL; ioc->build_sg(ioc, psge, data_out_dma, sizeof(struct phy_control_request), data_out_dma + sizeof(struct phy_control_request), sizeof(struct phy_control_reply)); dtransportprintk(ioc, ioc_info(ioc, "phy_control - send to sas_addr(0x%016llx), phy(%d), opcode(%d)\n", (u64)phy->identify.sas_address, phy->number, phy_operation)); init_completion(&ioc->transport_cmds.done); ioc->put_smid_default(ioc, smid); wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ); if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { ioc_err(ioc, "%s: timeout\n", __func__); _debug_dump_mf(mpi_request, sizeof(Mpi2SmpPassthroughRequest_t)/4); if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) issue_reset = 1; goto issue_host_reset; } dtransportprintk(ioc, ioc_info(ioc, "phy_control - complete\n")); if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { mpi_reply = ioc->transport_cmds.reply; dtransportprintk(ioc, ioc_info(ioc, "phy_control - reply data transfer size(%d)\n", le16_to_cpu(mpi_reply->ResponseDataLength))); if (le16_to_cpu(mpi_reply->ResponseDataLength) != sizeof(struct phy_control_reply)) goto out; phy_control_reply = data_out + sizeof(struct phy_control_request); dtransportprintk(ioc, ioc_info(ioc, "phy_control - function_result(%d)\n", phy_control_reply->function_result)); rc = 0; } else dtransportprintk(ioc, ioc_info(ioc, "phy_control - no reply\n")); issue_host_reset: if (issue_reset) mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); out: ioc->transport_cmds.status = MPT3_CMD_NOT_USED; if (data_out) dma_free_coherent(&ioc->pdev->dev, sz, data_out, data_out_dma); mutex_unlock(&ioc->transport_cmds.mutex); return rc; } /** * _transport_phy_reset - * @phy: The sas phy object * @hard_reset: * * Return: 0 for success, non-zero for failure. */ static int _transport_phy_reset(struct sas_phy *phy, int hard_reset) { struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); Mpi2SasIoUnitControlReply_t mpi_reply; Mpi2SasIoUnitControlRequest_t mpi_request; unsigned long flags; spin_lock_irqsave(&ioc->sas_node_lock, flags); if (_transport_sas_node_find_by_sas_address(ioc, phy->identify.sas_address) == NULL) { spin_unlock_irqrestore(&ioc->sas_node_lock, flags); return -EINVAL; } spin_unlock_irqrestore(&ioc->sas_node_lock, flags); /* handle expander phys */ if (phy->identify.sas_address != ioc->sas_hba.sas_address) return _transport_expander_phy_control(ioc, phy, (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET : SMP_PHY_CONTROL_LINK_RESET); /* handle hba phys */ memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t)); mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL; mpi_request.Operation = hard_reset ? MPI2_SAS_OP_PHY_HARD_RESET : MPI2_SAS_OP_PHY_LINK_RESET; mpi_request.PhyNum = phy->number; if ((mpt3sas_base_sas_iounit_control(ioc, &mpi_reply, &mpi_request))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); return -ENXIO; } if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) ioc_info(ioc, "phy(%d), ioc_status(0x%04x), loginfo(0x%08x)\n", phy->number, le16_to_cpu(mpi_reply.IOCStatus), le32_to_cpu(mpi_reply.IOCLogInfo)); return 0; } /** * _transport_phy_enable - enable/disable phys * @phy: The sas phy object * @enable: enable phy when true * * Only support sas_host direct attached phys. * Return: 0 for success, non-zero for failure. */ static int _transport_phy_enable(struct sas_phy *phy, int enable) { struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL; Mpi2ConfigReply_t mpi_reply; u16 ioc_status; u16 sz; int rc = 0; unsigned long flags; int i, discovery_active; spin_lock_irqsave(&ioc->sas_node_lock, flags); if (_transport_sas_node_find_by_sas_address(ioc, phy->identify.sas_address) == NULL) { spin_unlock_irqrestore(&ioc->sas_node_lock, flags); return -EINVAL; } spin_unlock_irqrestore(&ioc->sas_node_lock, flags); /* handle expander phys */ if (phy->identify.sas_address != ioc->sas_hba.sas_address) return _transport_expander_phy_control(ioc, phy, (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET : SMP_PHY_CONTROL_DISABLE); /* handle hba phys */ /* read sas_iounit page 0 */ sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys * sizeof(Mpi2SasIOUnit0PhyData_t)); sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL); if (!sas_iounit_pg0) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -ENOMEM; goto out; } if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply, sas_iounit_pg0, sz))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -ENXIO; goto out; } ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -EIO; goto out; } /* unable to enable/disable phys when when discovery is active */ for (i = 0, discovery_active = 0; i < ioc->sas_hba.num_phys ; i++) { if (sas_iounit_pg0->PhyData[i].PortFlags & MPI2_SASIOUNIT0_PORTFLAGS_DISCOVERY_IN_PROGRESS) { ioc_err(ioc, "discovery is active on port = %d, phy = %d: unable to enable/disable phys, try again later!\n", sas_iounit_pg0->PhyData[i].Port, i); discovery_active = 1; } } if (discovery_active) { rc = -EAGAIN; goto out; } /* read sas_iounit page 1 */ sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * sizeof(Mpi2SasIOUnit1PhyData_t)); sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); if (!sas_iounit_pg1) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -ENOMEM; goto out; } if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, sz))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -ENXIO; goto out; } ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -EIO; goto out; } /* copy Port/PortFlags/PhyFlags from page 0 */ for (i = 0; i < ioc->sas_hba.num_phys ; i++) { sas_iounit_pg1->PhyData[i].Port = sas_iounit_pg0->PhyData[i].Port; sas_iounit_pg1->PhyData[i].PortFlags = (sas_iounit_pg0->PhyData[i].PortFlags & MPI2_SASIOUNIT0_PORTFLAGS_AUTO_PORT_CONFIG); sas_iounit_pg1->PhyData[i].PhyFlags = (sas_iounit_pg0->PhyData[i].PhyFlags & (MPI2_SASIOUNIT0_PHYFLAGS_ZONING_ENABLED + MPI2_SASIOUNIT0_PHYFLAGS_PHY_DISABLED)); } if (enable) sas_iounit_pg1->PhyData[phy->number].PhyFlags &= ~MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE; else sas_iounit_pg1->PhyData[phy->number].PhyFlags |= MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE; mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, sz); /* link reset */ if (enable) _transport_phy_reset(phy, 0); out: kfree(sas_iounit_pg1); kfree(sas_iounit_pg0); return rc; } /** * _transport_phy_speed - set phy min/max link rates * @phy: The sas phy object * @rates: rates defined in sas_phy_linkrates * * Only support sas_host direct attached phys. * * Return: 0 for success, non-zero for failure. */ static int _transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates) { struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; Mpi2SasPhyPage0_t phy_pg0; Mpi2ConfigReply_t mpi_reply; u16 ioc_status; u16 sz; int i; int rc = 0; unsigned long flags; spin_lock_irqsave(&ioc->sas_node_lock, flags); if (_transport_sas_node_find_by_sas_address(ioc, phy->identify.sas_address) == NULL) { spin_unlock_irqrestore(&ioc->sas_node_lock, flags); return -EINVAL; } spin_unlock_irqrestore(&ioc->sas_node_lock, flags); if (!rates->minimum_linkrate) rates->minimum_linkrate = phy->minimum_linkrate; else if (rates->minimum_linkrate < phy->minimum_linkrate_hw) rates->minimum_linkrate = phy->minimum_linkrate_hw; if (!rates->maximum_linkrate) rates->maximum_linkrate = phy->maximum_linkrate; else if (rates->maximum_linkrate > phy->maximum_linkrate_hw) rates->maximum_linkrate = phy->maximum_linkrate_hw; /* handle expander phys */ if (phy->identify.sas_address != ioc->sas_hba.sas_address) { phy->minimum_linkrate = rates->minimum_linkrate; phy->maximum_linkrate = rates->maximum_linkrate; return _transport_expander_phy_control(ioc, phy, SMP_PHY_CONTROL_LINK_RESET); } /* handle hba phys */ /* sas_iounit page 1 */ sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * sizeof(Mpi2SasIOUnit1PhyData_t)); sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); if (!sas_iounit_pg1) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -ENOMEM; goto out; } if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, sz))) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -ENXIO; goto out; } ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -EIO; goto out; } for (i = 0; i < ioc->sas_hba.num_phys; i++) { if (phy->number != i) { sas_iounit_pg1->PhyData[i].MaxMinLinkRate = (ioc->sas_hba.phy[i].phy->minimum_linkrate + (ioc->sas_hba.phy[i].phy->maximum_linkrate << 4)); } else { sas_iounit_pg1->PhyData[i].MaxMinLinkRate = (rates->minimum_linkrate + (rates->maximum_linkrate << 4)); } } if (mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, sz)) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); rc = -ENXIO; goto out; } /* link reset */ _transport_phy_reset(phy, 0); /* read phy page 0, then update the rates in the sas transport phy */ if (!mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0, phy->number)) { phy->minimum_linkrate = _transport_convert_phy_link_rate( phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); phy->maximum_linkrate = _transport_convert_phy_link_rate( phy_pg0.ProgrammedLinkRate >> 4); phy->negotiated_linkrate = _transport_convert_phy_link_rate( phy_pg0.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); } out: kfree(sas_iounit_pg1); return rc; } static int _transport_map_smp_buffer(struct device *dev, struct bsg_buffer *buf, dma_addr_t *dma_addr, size_t *dma_len, void **p) { /* Check if the request is split across multiple segments */ if (buf->sg_cnt > 1) { *p = dma_alloc_coherent(dev, buf->payload_len, dma_addr, GFP_KERNEL); if (!*p) return -ENOMEM; *dma_len = buf->payload_len; } else { if (!dma_map_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL)) return -ENOMEM; *dma_addr = sg_dma_address(buf->sg_list); *dma_len = sg_dma_len(buf->sg_list); *p = NULL; } return 0; } static void _transport_unmap_smp_buffer(struct device *dev, struct bsg_buffer *buf, dma_addr_t dma_addr, void *p) { if (p) dma_free_coherent(dev, buf->payload_len, p, dma_addr); else dma_unmap_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL); } /** * _transport_smp_handler - transport portal for smp passthru * @job: ? * @shost: shost object * @rphy: sas transport rphy object * * This used primarily for smp_utils. * Example: * smp_rep_general /sys/class/bsg/expander-5:0 */ static void _transport_smp_handler(struct bsg_job *job, struct Scsi_Host *shost, struct sas_rphy *rphy) { struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); Mpi2SmpPassthroughRequest_t *mpi_request; Mpi2SmpPassthroughReply_t *mpi_reply; int rc; u16 smid; void *psge; dma_addr_t dma_addr_in; dma_addr_t dma_addr_out; void *addr_in = NULL; void *addr_out = NULL; size_t dma_len_in; size_t dma_len_out; unsigned int reslen = 0; if (ioc->shost_recovery || ioc->pci_error_recovery) { ioc_info(ioc, "%s: host reset in progress!\n", __func__); rc = -EFAULT; goto job_done; } rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex); if (rc) goto job_done; if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { ioc_err(ioc, "%s: transport_cmds in use\n", __func__); rc = -EAGAIN; goto out; } ioc->transport_cmds.status = MPT3_CMD_PENDING; rc = _transport_map_smp_buffer(&ioc->pdev->dev, &job->request_payload, &dma_addr_out, &dma_len_out, &addr_out); if (rc) goto out; if (addr_out) { sg_copy_to_buffer(job->request_payload.sg_list, job->request_payload.sg_cnt, addr_out, job->request_payload.payload_len); } rc = _transport_map_smp_buffer(&ioc->pdev->dev, &job->reply_payload, &dma_addr_in, &dma_len_in, &addr_in); if (rc) goto unmap_out; rc = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT); if (rc) goto unmap_in; smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); if (!smid) { ioc_err(ioc, "%s: failed obtaining a smid\n", __func__); rc = -EAGAIN; goto unmap_in; } rc = 0; mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); ioc->transport_cmds.smid = smid; memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; mpi_request->PhysicalPort = 0xFF; mpi_request->SASAddress = (rphy) ? cpu_to_le64(rphy->identify.sas_address) : cpu_to_le64(ioc->sas_hba.sas_address); mpi_request->RequestDataLength = cpu_to_le16(dma_len_out - 4); psge = &mpi_request->SGL; ioc->build_sg(ioc, psge, dma_addr_out, dma_len_out - 4, dma_addr_in, dma_len_in - 4); dtransportprintk(ioc, ioc_info(ioc, "%s: sending smp request\n", __func__)); init_completion(&ioc->transport_cmds.done); ioc->put_smid_default(ioc, smid); wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ); if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { ioc_err(ioc, "%s: timeout\n", __func__); _debug_dump_mf(mpi_request, sizeof(Mpi2SmpPassthroughRequest_t)/4); if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) { mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); rc = -ETIMEDOUT; goto unmap_in; } } dtransportprintk(ioc, ioc_info(ioc, "%s - complete\n", __func__)); if (!(ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID)) { dtransportprintk(ioc, ioc_info(ioc, "%s: no reply\n", __func__)); rc = -ENXIO; goto unmap_in; } mpi_reply = ioc->transport_cmds.reply; dtransportprintk(ioc, ioc_info(ioc, "%s: reply data transfer size(%d)\n", __func__, le16_to_cpu(mpi_reply->ResponseDataLength))); memcpy(job->reply, mpi_reply, sizeof(*mpi_reply)); job->reply_len = sizeof(*mpi_reply); reslen = le16_to_cpu(mpi_reply->ResponseDataLength); if (addr_in) { sg_copy_to_buffer(job->reply_payload.sg_list, job->reply_payload.sg_cnt, addr_in, job->reply_payload.payload_len); } rc = 0; unmap_in: _transport_unmap_smp_buffer(&ioc->pdev->dev, &job->reply_payload, dma_addr_in, addr_in); unmap_out: _transport_unmap_smp_buffer(&ioc->pdev->dev, &job->request_payload, dma_addr_out, addr_out); out: ioc->transport_cmds.status = MPT3_CMD_NOT_USED; mutex_unlock(&ioc->transport_cmds.mutex); job_done: bsg_job_done(job, rc, reslen); } struct sas_function_template mpt3sas_transport_functions = { .get_linkerrors = _transport_get_linkerrors, .get_enclosure_identifier = _transport_get_enclosure_identifier, .get_bay_identifier = _transport_get_bay_identifier, .phy_reset = _transport_phy_reset, .phy_enable = _transport_phy_enable, .set_phy_speed = _transport_phy_speed, .smp_handler = _transport_smp_handler, }; struct scsi_transport_template *mpt3sas_transport_template;
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