diff options
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_transport.c')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_transport.c | 2173 |
1 files changed, 0 insertions, 2173 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c deleted file mode 100644 index af868009395d..000000000000 --- a/drivers/scsi/mpt2sas/mpt2sas_transport.c +++ /dev/null @@ -1,2173 +0,0 @@ -/* - * SAS Transport Layer for MPT (Message Passing Technology) based controllers - * - * This code is based on drivers/scsi/mpt2sas/mpt2_transport.c - * Copyright (C) 2007-2014 LSI Corporation - * Copyright (C) 20013-2014 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 <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_transport_sas.h> -#include <scsi/scsi_dbg.h> - -#include "mpt2sas_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 MPT2SAS_ADAPTER *ioc, - u64 sas_address) -{ - if (ioc->sas_hba.sas_address == sas_address) - return &ioc->sas_hba; - else - return mpt2sas_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 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. - * - * Returns 0 for success, non-zero for failure. - */ -static int -_transport_set_identify(struct MPT2SAS_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) { - printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n", - __func__, ioc->name); - return -EFAULT; - } - - if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, - MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - - ioc->name, __FILE__, __LINE__, __func__); - return -ENXIO; - } - - ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & - MPI2_IOCSTATUS_MASK; - if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { - printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)" - "\nfailure at %s:%d/%s()!\n", ioc->name, 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; -} - -/** - * mpt2sas_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 -mpt2sas_transport_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, - u32 reply) -{ - MPI2DefaultReply_t *mpi_reply; - - mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); - if (ioc->transport_cmds.status == MPT2_CMD_NOT_USED) - return 1; - if (ioc->transport_cmds.smid != smid) - return 1; - ioc->transport_cmds.status |= MPT2_CMD_COMPLETE; - if (mpi_reply) { - memcpy(ioc->transport_cmds.reply, mpi_reply, - mpi_reply->MsgLength*4); - ioc->transport_cmds.status |= MPT2_CMD_REPLY_VALID; - } - ioc->transport_cmds.status &= ~MPT2_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. - * - * Returns 0 for success, non-zero for failure. - */ -static int -_transport_expander_report_manufacture(struct MPT2SAS_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; - u32 ioc_state; - unsigned long timeleft; - void *psge; - u32 sgl_flags; - u8 issue_reset = 0; - void *data_out = NULL; - dma_addr_t data_out_dma; - u32 sz; - u16 wait_state_count; - - if (ioc->shost_recovery || ioc->pci_error_recovery) { - printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n", - __func__, ioc->name); - return -EFAULT; - } - - mutex_lock(&ioc->transport_cmds.mutex); - - if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) { - printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n", - ioc->name, __func__); - rc = -EAGAIN; - goto out; - } - ioc->transport_cmds.status = MPT2_CMD_PENDING; - - wait_state_count = 0; - ioc_state = mpt2sas_base_get_iocstate(ioc, 1); - while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - if (wait_state_count++ == 10) { - printk(MPT2SAS_ERR_FMT - "%s: failed due to ioc not operational\n", - ioc->name, __func__); - rc = -EFAULT; - goto out; - } - ssleep(1); - ioc_state = mpt2sas_base_get_iocstate(ioc, 1); - printk(MPT2SAS_INFO_FMT "%s: waiting for " - "operational state(count=%d)\n", ioc->name, - __func__, wait_state_count); - } - if (wait_state_count) - printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n", - ioc->name, __func__); - - smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx); - if (!smid) { - printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", - ioc->name, __func__); - rc = -EAGAIN; - goto out; - } - - rc = 0; - mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); - ioc->transport_cmds.smid = smid; - - sz = sizeof(struct rep_manu_request) + sizeof(struct rep_manu_reply); - data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma); - - if (!data_out) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, - __LINE__, __func__); - rc = -ENOMEM; - mpt2sas_base_free_smid(ioc, smid); - goto out; - } - - 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->VF_ID = 0; /* TODO */ - mpi_request->VP_ID = 0; - mpi_request->SASAddress = cpu_to_le64(sas_address); - mpi_request->RequestDataLength = - cpu_to_le16(sizeof(struct rep_manu_request)); - psge = &mpi_request->SGL; - - /* WRITE sgel first */ - sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | - MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC); - sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - ioc->base_add_sg_single(psge, sgl_flags | - sizeof(struct rep_manu_request), data_out_dma); - - /* incr sgel */ - psge += ioc->sge_size; - - /* READ sgel last */ - sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | - MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | - MPI2_SGE_FLAGS_END_OF_LIST); - sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - ioc->base_add_sg_single(psge, sgl_flags | - sizeof(struct rep_manu_reply), data_out_dma + - sizeof(struct rep_manu_request)); - - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "report_manufacture - " - "send to sas_addr(0x%016llx)\n", ioc->name, - (unsigned long long)sas_address)); - init_completion(&ioc->transport_cmds.done); - mpt2sas_base_put_smid_default(ioc, smid); - timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, - 10*HZ); - - if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) { - printk(MPT2SAS_ERR_FMT "%s: timeout\n", - ioc->name, __func__); - _debug_dump_mf(mpi_request, - sizeof(Mpi2SmpPassthroughRequest_t)/4); - if (!(ioc->transport_cmds.status & MPT2_CMD_RESET)) - issue_reset = 1; - goto issue_host_reset; - } - - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "report_manufacture - " - "complete\n", ioc->name)); - - if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) { - u8 *tmp; - - mpi_reply = ioc->transport_cmds.reply; - - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT - "report_manufacture - reply data transfer size(%d)\n", - ioc->name, 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, printk(MPT2SAS_INFO_FMT - "report_manufacture - no reply\n", ioc->name)); - - issue_host_reset: - if (issue_reset) - mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, - FORCE_BIG_HAMMER); - out: - ioc->transport_cmds.status = MPT2_CMD_NOT_USED; - if (data_out) - pci_free_consistent(ioc->pdev, 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 - * @mpt2sas_port: mpt2sas per port object - * - * Returns nothing. - */ -static void -_transport_delete_port(struct MPT2SAS_ADAPTER *ioc, - struct _sas_port *mpt2sas_port) -{ - u64 sas_address = mpt2sas_port->remote_identify.sas_address; - enum sas_device_type device_type = - mpt2sas_port->remote_identify.device_type; - - dev_printk(KERN_INFO, &mpt2sas_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) - mpt2sas_device_remove_by_sas_address(ioc, sas_address); - else if (device_type == SAS_EDGE_EXPANDER_DEVICE || - device_type == SAS_FANOUT_EXPANDER_DEVICE) - mpt2sas_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 - * @mpt2sas_port: mpt2sas per port object - * @mpt2sas_phy: mpt2sas per phy object - * - * Returns nothing. - */ -static void -_transport_delete_phy(struct MPT2SAS_ADAPTER *ioc, - struct _sas_port *mpt2sas_port, struct _sas_phy *mpt2sas_phy) -{ - u64 sas_address = mpt2sas_port->remote_identify.sas_address; - - dev_printk(KERN_INFO, &mpt2sas_phy->phy->dev, - "remove: sas_addr(0x%016llx), phy(%d)\n", - (unsigned long long) sas_address, mpt2sas_phy->phy_id); - - list_del(&mpt2sas_phy->port_siblings); - mpt2sas_port->num_phys--; - sas_port_delete_phy(mpt2sas_port->port, mpt2sas_phy->phy); - mpt2sas_phy->phy_belongs_to_port = 0; -} - -/** - * _transport_add_phy - helper function to adding single phy to port - * @ioc: per adapter object - * @mpt2sas_port: mpt2sas per port object - * @mpt2sas_phy: mpt2sas per phy object - * - * Returns nothing. - */ -static void -_transport_add_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_port *mpt2sas_port, - struct _sas_phy *mpt2sas_phy) -{ - u64 sas_address = mpt2sas_port->remote_identify.sas_address; - - dev_printk(KERN_INFO, &mpt2sas_phy->phy->dev, - "add: sas_addr(0x%016llx), phy(%d)\n", (unsigned long long) - sas_address, mpt2sas_phy->phy_id); - - list_add_tail(&mpt2sas_phy->port_siblings, &mpt2sas_port->phy_list); - mpt2sas_port->num_phys++; - sas_port_add_phy(mpt2sas_port->port, mpt2sas_phy->phy); - mpt2sas_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) - * @mpt2sas_phy: mpt2sas per phy object - * @sas_address: sas address of device/expander were phy needs to be added to - * - * Returns nothing. - */ -static void -_transport_add_phy_to_an_existing_port(struct MPT2SAS_ADAPTER *ioc, -struct _sas_node *sas_node, struct _sas_phy *mpt2sas_phy, u64 sas_address) -{ - struct _sas_port *mpt2sas_port; - struct _sas_phy *phy_srch; - - if (mpt2sas_phy->phy_belongs_to_port == 1) - return; - - list_for_each_entry(mpt2sas_port, &sas_node->sas_port_list, - port_list) { - if (mpt2sas_port->remote_identify.sas_address != - sas_address) - continue; - list_for_each_entry(phy_srch, &mpt2sas_port->phy_list, - port_siblings) { - if (phy_srch == mpt2sas_phy) - return; - } - _transport_add_phy(ioc, mpt2sas_port, mpt2sas_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) - * @mpt2sas_phy: mpt2sas per phy object - * - * Returns nothing. - */ -static void -_transport_del_phy_from_an_existing_port(struct MPT2SAS_ADAPTER *ioc, - struct _sas_node *sas_node, struct _sas_phy *mpt2sas_phy) -{ - struct _sas_port *mpt2sas_port, *next; - struct _sas_phy *phy_srch; - - if (mpt2sas_phy->phy_belongs_to_port == 0) - return; - - list_for_each_entry_safe(mpt2sas_port, next, &sas_node->sas_port_list, - port_list) { - list_for_each_entry(phy_srch, &mpt2sas_port->phy_list, - port_siblings) { - if (phy_srch != mpt2sas_phy) - continue; - if (mpt2sas_port->num_phys == 1) - _transport_delete_port(ioc, mpt2sas_port); - else - _transport_delete_phy(ioc, mpt2sas_port, - mpt2sas_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 MPT2SAS_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]); - } -} - -/** - * mpt2sas_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. - * - * Returns mpt2sas_port. - */ -struct _sas_port * -mpt2sas_transport_port_add(struct MPT2SAS_ADAPTER *ioc, u16 handle, - u64 sas_address) -{ - struct _sas_phy *mpt2sas_phy, *next; - struct _sas_port *mpt2sas_port; - unsigned long flags; - struct _sas_node *sas_node; - struct sas_rphy *rphy; - int i; - struct sas_port *port; - - mpt2sas_port = kzalloc(sizeof(struct _sas_port), - GFP_KERNEL); - if (!mpt2sas_port) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - return NULL; - } - - INIT_LIST_HEAD(&mpt2sas_port->port_list); - INIT_LIST_HEAD(&mpt2sas_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) { - printk(MPT2SAS_ERR_FMT "%s: Could not find " - "parent sas_address(0x%016llx)!\n", ioc->name, - __func__, (unsigned long long)sas_address); - goto out_fail; - } - - if ((_transport_set_identify(ioc, handle, - &mpt2sas_port->remote_identify))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - goto out_fail; - } - - if (mpt2sas_port->remote_identify.device_type == SAS_PHY_UNUSED) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - goto out_fail; - } - - _transport_sanity_check(ioc, sas_node, - mpt2sas_port->remote_identify.sas_address); - - for (i = 0; i < sas_node->num_phys; i++) { - if (sas_node->phy[i].remote_identify.sas_address != - mpt2sas_port->remote_identify.sas_address) - continue; - list_add_tail(&sas_node->phy[i].port_siblings, - &mpt2sas_port->phy_list); - mpt2sas_port->num_phys++; - } - - if (!mpt2sas_port->num_phys) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - goto out_fail; - } - - port = sas_port_alloc_num(sas_node->parent_dev); - if ((sas_port_add(port))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - goto out_fail; - } - - list_for_each_entry(mpt2sas_phy, &mpt2sas_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) - mpt2sas_port->remote_identify.sas_address, - mpt2sas_phy->phy_id); - sas_port_add_phy(port, mpt2sas_phy->phy); - mpt2sas_phy->phy_belongs_to_port = 1; - } - - mpt2sas_port->port = port; - if (mpt2sas_port->remote_identify.device_type == SAS_END_DEVICE) - rphy = sas_end_device_alloc(port); - else - rphy = sas_expander_alloc(port, - mpt2sas_port->remote_identify.device_type); - - rphy->identify = mpt2sas_port->remote_identify; - if ((sas_rphy_add(rphy))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - } - if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) - dev_printk(KERN_INFO, &rphy->dev, "add: handle(0x%04x), " - "sas_addr(0x%016llx)\n", handle, - (unsigned long long) - mpt2sas_port->remote_identify.sas_address); - mpt2sas_port->rphy = rphy; - spin_lock_irqsave(&ioc->sas_node_lock, flags); - list_add_tail(&mpt2sas_port->port_list, &sas_node->sas_port_list); - spin_unlock_irqrestore(&ioc->sas_node_lock, flags); - - /* fill in report manufacture */ - if (mpt2sas_port->remote_identify.device_type == - MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER || - mpt2sas_port->remote_identify.device_type == - MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) - _transport_expander_report_manufacture(ioc, - mpt2sas_port->remote_identify.sas_address, - rphy_to_expander_device(rphy)); - - return mpt2sas_port; - - out_fail: - list_for_each_entry_safe(mpt2sas_phy, next, &mpt2sas_port->phy_list, - port_siblings) - list_del(&mpt2sas_phy->port_siblings); - kfree(mpt2sas_port); - return NULL; -} - -/** - * mpt2sas_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. - * - * Return nothing. - */ -void -mpt2sas_transport_port_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address, - u64 sas_address_parent) -{ - int i; - unsigned long flags; - struct _sas_port *mpt2sas_port, *next; - struct _sas_node *sas_node; - u8 found = 0; - struct _sas_phy *mpt2sas_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(mpt2sas_port, next, &sas_node->sas_port_list, - port_list) { - if (mpt2sas_port->remote_identify.sas_address != sas_address) - continue; - found = 1; - list_del(&mpt2sas_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(mpt2sas_phy, next_phy, - &mpt2sas_port->phy_list, port_siblings) { - if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) - dev_printk(KERN_INFO, &mpt2sas_port->port->dev, - "remove: sas_addr(0x%016llx), phy(%d)\n", - (unsigned long long) - mpt2sas_port->remote_identify.sas_address, - mpt2sas_phy->phy_id); - mpt2sas_phy->phy_belongs_to_port = 0; - sas_port_delete_phy(mpt2sas_port->port, mpt2sas_phy->phy); - list_del(&mpt2sas_phy->port_siblings); - } - sas_port_delete(mpt2sas_port->port); - kfree(mpt2sas_port); -} - -/** - * mpt2sas_transport_add_host_phy - report sas_host phy to transport - * @ioc: per adapter object - * @mpt2sas_phy: mpt2sas per phy object - * @phy_pg0: sas phy page 0 - * @parent_dev: parent device class object - * - * Returns 0 for success, non-zero for failure. - */ -int -mpt2sas_transport_add_host_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy - *mpt2sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev) -{ - struct sas_phy *phy; - int phy_index = mpt2sas_phy->phy_id; - - - INIT_LIST_HEAD(&mpt2sas_phy->port_siblings); - phy = sas_phy_alloc(parent_dev, phy_index); - if (!phy) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - return -1; - } - if ((_transport_set_identify(ioc, mpt2sas_phy->handle, - &mpt2sas_phy->identify))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - return -1; - } - phy->identify = mpt2sas_phy->identify; - mpt2sas_phy->attached_handle = le16_to_cpu(phy_pg0.AttachedDevHandle); - if (mpt2sas_phy->attached_handle) - _transport_set_identify(ioc, mpt2sas_phy->attached_handle, - &mpt2sas_phy->remote_identify); - phy->identify.phy_identifier = mpt2sas_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))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __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", - mpt2sas_phy->handle, (unsigned long long) - mpt2sas_phy->identify.sas_address, - mpt2sas_phy->attached_handle, - (unsigned long long) - mpt2sas_phy->remote_identify.sas_address); - mpt2sas_phy->phy = phy; - return 0; -} - - -/** - * mpt2sas_transport_add_expander_phy - report expander phy to transport - * @ioc: per adapter object - * @mpt2sas_phy: mpt2sas per phy object - * @expander_pg1: expander page 1 - * @parent_dev: parent device class object - * - * Returns 0 for success, non-zero for failure. - */ -int -mpt2sas_transport_add_expander_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy - *mpt2sas_phy, Mpi2ExpanderPage1_t expander_pg1, struct device *parent_dev) -{ - struct sas_phy *phy; - int phy_index = mpt2sas_phy->phy_id; - - INIT_LIST_HEAD(&mpt2sas_phy->port_siblings); - phy = sas_phy_alloc(parent_dev, phy_index); - if (!phy) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - return -1; - } - if ((_transport_set_identify(ioc, mpt2sas_phy->handle, - &mpt2sas_phy->identify))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - return -1; - } - phy->identify = mpt2sas_phy->identify; - mpt2sas_phy->attached_handle = - le16_to_cpu(expander_pg1.AttachedDevHandle); - if (mpt2sas_phy->attached_handle) - _transport_set_identify(ioc, mpt2sas_phy->attached_handle, - &mpt2sas_phy->remote_identify); - phy->identify.phy_identifier = mpt2sas_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))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __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", - mpt2sas_phy->handle, (unsigned long long) - mpt2sas_phy->identify.sas_address, - mpt2sas_phy->attached_handle, - (unsigned long long) - mpt2sas_phy->remote_identify.sas_address); - mpt2sas_phy->phy = phy; - return 0; -} - -/** - * mpt2sas_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_numberv: phy number - * @link_rate: new link rate - * - * Returns nothing. - */ -void -mpt2sas_transport_update_links(struct MPT2SAS_ADAPTER *ioc, - u64 sas_address, u16 handle, u8 phy_number, u8 link_rate) -{ - unsigned long flags; - struct _sas_node *sas_node; - struct _sas_phy *mpt2sas_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; - } - - mpt2sas_phy = &sas_node->phy[phy_number]; - mpt2sas_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, - &mpt2sas_phy->remote_identify); - _transport_add_phy_to_an_existing_port(ioc, sas_node, - mpt2sas_phy, mpt2sas_phy->remote_identify.sas_address); - } else - memset(&mpt2sas_phy->remote_identify, 0 , sizeof(struct - sas_identify)); - - if (mpt2sas_phy->phy) - mpt2sas_phy->phy->negotiated_linkrate = - _transport_convert_phy_link_rate(link_rate); - - if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) - dev_printk(KERN_INFO, &mpt2sas_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) - mpt2sas_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 - * - * Returns 0 for success, non-zero for failure. - * - */ -static int -_transport_get_expander_phy_error_log(struct MPT2SAS_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; - u32 ioc_state; - unsigned long timeleft; - void *psge; - u32 sgl_flags; - u8 issue_reset = 0; - void *data_out = NULL; - dma_addr_t data_out_dma; - u32 sz; - u16 wait_state_count; - - if (ioc->shost_recovery || ioc->pci_error_recovery) { - printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n", - __func__, ioc->name); - return -EFAULT; - } - - mutex_lock(&ioc->transport_cmds.mutex); - - if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) { - printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n", - ioc->name, __func__); - rc = -EAGAIN; - goto out; - } - ioc->transport_cmds.status = MPT2_CMD_PENDING; - - wait_state_count = 0; - ioc_state = mpt2sas_base_get_iocstate(ioc, 1); - while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - if (wait_state_count++ == 10) { - printk(MPT2SAS_ERR_FMT - "%s: failed due to ioc not operational\n", - ioc->name, __func__); - rc = -EFAULT; - goto out; - } - ssleep(1); - ioc_state = mpt2sas_base_get_iocstate(ioc, 1); - printk(MPT2SAS_INFO_FMT "%s: waiting for " - "operational state(count=%d)\n", ioc->name, - __func__, wait_state_count); - } - if (wait_state_count) - printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n", - ioc->name, __func__); - - smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx); - if (!smid) { - printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", - ioc->name, __func__); - rc = -EAGAIN; - goto out; - } - - mpi_request = mpt2sas_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 = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma); - if (!data_out) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, - __LINE__, __func__); - rc = -ENOMEM; - mpt2sas_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; - - /* WRITE sgel first */ - sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | - MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC); - sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - ioc->base_add_sg_single(psge, sgl_flags | - sizeof(struct phy_error_log_request), data_out_dma); - - /* incr sgel */ - psge += ioc->sge_size; - - /* READ sgel last */ - sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | - MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | - MPI2_SGE_FLAGS_END_OF_LIST); - sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - ioc->base_add_sg_single(psge, sgl_flags | - sizeof(struct phy_error_log_reply), data_out_dma + - sizeof(struct phy_error_log_request)); - - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "phy_error_log - " - "send to sas_addr(0x%016llx), phy(%d)\n", ioc->name, - (unsigned long long)phy->identify.sas_address, phy->number)); - init_completion(&ioc->transport_cmds.done); - mpt2sas_base_put_smid_default(ioc, smid); - timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, - 10*HZ); - - if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) { - printk(MPT2SAS_ERR_FMT "%s: timeout\n", - ioc->name, __func__); - _debug_dump_mf(mpi_request, - sizeof(Mpi2SmpPassthroughRequest_t)/4); - if (!(ioc->transport_cmds.status & MPT2_CMD_RESET)) - issue_reset = 1; - goto issue_host_reset; - } - - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "phy_error_log - " - "complete\n", ioc->name)); - - if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) { - - mpi_reply = ioc->transport_cmds.reply; - - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT - "phy_error_log - reply data transfer size(%d)\n", - ioc->name, 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, printk(MPT2SAS_INFO_FMT - "phy_error_log - function_result(%d)\n", - ioc->name, 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, printk(MPT2SAS_INFO_FMT - "phy_error_log - no reply\n", ioc->name)); - - issue_host_reset: - if (issue_reset) - mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, - FORCE_BIG_HAMMER); - out: - ioc->transport_cmds.status = MPT2_CMD_NOT_USED; - if (data_out) - pci_free_consistent(ioc->pdev, 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 - * - * Returns 0 for success, non-zero for failure. - * - */ -static int -_transport_get_linkerrors(struct sas_phy *phy) -{ - struct MPT2SAS_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 ((mpt2sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1, - phy->number))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - return -ENXIO; - } - - if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) - printk(MPT2SAS_INFO_FMT "phy(%d), ioc_status" - "(0x%04x), loginfo(0x%08x)\n", ioc->name, - 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 - - * @phy: The sas phy object - * - * Obtain the enclosure logical id for an expander. - * Returns 0 for success, non-zero for failure. - */ -static int -_transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier) -{ - struct MPT2SAS_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 = __mpt2sas_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 - - * @phy: The sas phy object - * - * Returns the slot id for a device that resides inside an enclosure. - */ -static int -_transport_get_bay_identifier(struct sas_rphy *rphy) -{ - struct MPT2SAS_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 = __mpt2sas_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 - * - * Returns 0 for success, non-zero for failure. - * - */ -static int -_transport_expander_phy_control(struct MPT2SAS_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; - u32 ioc_state; - unsigned long timeleft; - void *psge; - u32 sgl_flags; - u8 issue_reset = 0; - void *data_out = NULL; - dma_addr_t data_out_dma; - u32 sz; - u16 wait_state_count; - - if (ioc->shost_recovery) { - printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n", - __func__, ioc->name); - return -EFAULT; - } - - mutex_lock(&ioc->transport_cmds.mutex); - - if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) { - printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n", - ioc->name, __func__); - rc = -EAGAIN; - goto out; - } - ioc->transport_cmds.status = MPT2_CMD_PENDING; - - wait_state_count = 0; - ioc_state = mpt2sas_base_get_iocstate(ioc, 1); - while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - if (wait_state_count++ == 10) { - printk(MPT2SAS_ERR_FMT - "%s: failed due to ioc not operational\n", - ioc->name, __func__); - rc = -EFAULT; - goto out; - } - ssleep(1); - ioc_state = mpt2sas_base_get_iocstate(ioc, 1); - printk(MPT2SAS_INFO_FMT "%s: waiting for " - "operational state(count=%d)\n", ioc->name, - __func__, wait_state_count); - } - if (wait_state_count) - printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n", - ioc->name, __func__); - - smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx); - if (!smid) { - printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", - ioc->name, __func__); - rc = -EAGAIN; - goto out; - } - - mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); - ioc->transport_cmds.smid = smid; - - sz = sizeof(struct phy_control_request) + - sizeof(struct phy_control_reply); - data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma); - if (!data_out) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, - __LINE__, __func__); - rc = -ENOMEM; - mpt2sas_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; - - /* WRITE sgel first */ - sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | - MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC); - sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - ioc->base_add_sg_single(psge, sgl_flags | - sizeof(struct phy_control_request), data_out_dma); - - /* incr sgel */ - psge += ioc->sge_size; - - /* READ sgel last */ - sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | - MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | - MPI2_SGE_FLAGS_END_OF_LIST); - sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - ioc->base_add_sg_single(psge, sgl_flags | - sizeof(struct phy_control_reply), data_out_dma + - sizeof(struct phy_control_request)); - - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "phy_control - " - "send to sas_addr(0x%016llx), phy(%d), opcode(%d)\n", ioc->name, - (unsigned long long)phy->identify.sas_address, phy->number, - phy_operation)); - - init_completion(&ioc->transport_cmds.done); - mpt2sas_base_put_smid_default(ioc, smid); - timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, - 10*HZ); - - if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) { - printk(MPT2SAS_ERR_FMT "%s: timeout\n", - ioc->name, __func__); - _debug_dump_mf(mpi_request, - sizeof(Mpi2SmpPassthroughRequest_t)/4); - if (!(ioc->transport_cmds.status & MPT2_CMD_RESET)) - issue_reset = 1; - goto issue_host_reset; - } - - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "phy_control - " - "complete\n", ioc->name)); - - if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) { - - mpi_reply = ioc->transport_cmds.reply; - - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT - "phy_control - reply data transfer size(%d)\n", - ioc->name, 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, printk(MPT2SAS_INFO_FMT - "phy_control - function_result(%d)\n", - ioc->name, phy_control_reply->function_result)); - - rc = 0; - } else - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT - "phy_control - no reply\n", ioc->name)); - - issue_host_reset: - if (issue_reset) - mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, - FORCE_BIG_HAMMER); - out: - ioc->transport_cmds.status = MPT2_CMD_NOT_USED; - if (data_out) - pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma); - - mutex_unlock(&ioc->transport_cmds.mutex); - return rc; -} - -/** - * _transport_phy_reset - - * @phy: The sas phy object - * @hard_reset: - * - * Returns 0 for success, non-zero for failure. - */ -static int -_transport_phy_reset(struct sas_phy *phy, int hard_reset) -{ - struct MPT2SAS_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(Mpi2SasIoUnitControlReply_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 ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply, &mpi_request))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - return -ENXIO; - } - - if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) - printk(MPT2SAS_INFO_FMT "phy(%d), ioc_status" - "(0x%04x), loginfo(0x%08x)\n", ioc->name, - 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. - * Returns 0 for success, non-zero for failure. - */ -static int -_transport_phy_enable(struct sas_phy *phy, int enable) -{ - struct MPT2SAS_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) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - rc = -ENOMEM; - goto out; - } - if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply, - sas_iounit_pg0, sz))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - rc = -ENXIO; - goto out; - } - ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & - MPI2_IOCSTATUS_MASK; - if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __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) { - printk(MPT2SAS_ERR_FMT "discovery is active on " - "port = %d, phy = %d: unable to enable/disable " - "phys, try again later!\n", ioc->name, - 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) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - rc = -ENOMEM; - goto out; - } - if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, - sas_iounit_pg1, sz))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - rc = -ENXIO; - goto out; - } - ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & - MPI2_IOCSTATUS_MASK; - if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __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; - - mpt2sas_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. - * Returns 0 for success, non-zero for failure. - */ -static int -_transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates) -{ - struct MPT2SAS_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) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - rc = -ENOMEM; - goto out; - } - if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, - sas_iounit_pg1, sz))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - rc = -ENXIO; - goto out; - } - ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & - MPI2_IOCSTATUS_MASK; - if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __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 (mpt2sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, - sz)) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __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 (!mpt2sas_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; -} - - -/** - * _transport_smp_handler - transport portal for smp passthru - * @shost: shost object - * @rphy: sas transport rphy object - * @req: - * - * This used primarily for smp_utils. - * Example: - * smp_rep_general /sys/class/bsg/expander-5:0 - */ -static int -_transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, - struct request *req) -{ - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - Mpi2SmpPassthroughRequest_t *mpi_request; - Mpi2SmpPassthroughReply_t *mpi_reply; - int rc; - u16 smid; - u32 ioc_state; - unsigned long timeleft; - void *psge; - u32 sgl_flags; - u8 issue_reset = 0; - dma_addr_t dma_addr_in = 0; - dma_addr_t dma_addr_out = 0; - dma_addr_t pci_dma_in = 0; - dma_addr_t pci_dma_out = 0; - void *pci_addr_in = NULL; - void *pci_addr_out = NULL; - u16 wait_state_count; - struct request *rsp = req->next_rq; - struct bio_vec bvec; - struct bvec_iter iter; - - if (!rsp) { - printk(MPT2SAS_ERR_FMT "%s: the smp response space is " - "missing\n", ioc->name, __func__); - return -EINVAL; - } - if (ioc->shost_recovery || ioc->pci_error_recovery) { - printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n", - __func__, ioc->name); - return -EFAULT; - } - - rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex); - if (rc) - return rc; - - if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) { - printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n", ioc->name, - __func__); - rc = -EAGAIN; - goto out; - } - ioc->transport_cmds.status = MPT2_CMD_PENDING; - - /* Check if the request is split across multiple segments */ - if (bio_multiple_segments(req->bio)) { - u32 offset = 0; - - /* Allocate memory and copy the request */ - pci_addr_out = pci_alloc_consistent(ioc->pdev, - blk_rq_bytes(req), &pci_dma_out); - if (!pci_addr_out) { - printk(MPT2SAS_INFO_FMT "%s(): PCI Addr out = NULL\n", - ioc->name, __func__); - rc = -ENOMEM; - goto out; - } - - bio_for_each_segment(bvec, req->bio, iter) { - memcpy(pci_addr_out + offset, - page_address(bvec.bv_page) + bvec.bv_offset, - bvec.bv_len); - offset += bvec.bv_len; - } - } else { - dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio), - blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL); - if (!dma_addr_out) { - printk(MPT2SAS_INFO_FMT "%s(): DMA Addr out = NULL\n", - ioc->name, __func__); - rc = -ENOMEM; - goto free_pci; - } - } - - /* Check if the response needs to be populated across - * multiple segments */ - if (bio_multiple_segments(rsp->bio)) { - pci_addr_in = pci_alloc_consistent(ioc->pdev, blk_rq_bytes(rsp), - &pci_dma_in); - if (!pci_addr_in) { - printk(MPT2SAS_INFO_FMT "%s(): PCI Addr in = NULL\n", - ioc->name, __func__); - rc = -ENOMEM; - goto unmap; - } - } else { - dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio), - blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL); - if (!dma_addr_in) { - printk(MPT2SAS_INFO_FMT "%s(): DMA Addr in = NULL\n", - ioc->name, __func__); - rc = -ENOMEM; - goto unmap; - } - } - - wait_state_count = 0; - ioc_state = mpt2sas_base_get_iocstate(ioc, 1); - while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - if (wait_state_count++ == 10) { - printk(MPT2SAS_ERR_FMT - "%s: failed due to ioc not operational\n", - ioc->name, __func__); - rc = -EFAULT; - goto unmap; - } - ssleep(1); - ioc_state = mpt2sas_base_get_iocstate(ioc, 1); - printk(MPT2SAS_INFO_FMT "%s: waiting for " - "operational state(count=%d)\n", ioc->name, - __func__, wait_state_count); - } - if (wait_state_count) - printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n", - ioc->name, __func__); - - smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx); - if (!smid) { - printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", - ioc->name, __func__); - rc = -EAGAIN; - goto unmap; - } - - rc = 0; - mpi_request = mpt2sas_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->VF_ID = 0; /* TODO */ - mpi_request->VP_ID = 0; - 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(blk_rq_bytes(req) - 4); - psge = &mpi_request->SGL; - - /* WRITE sgel first */ - sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | - MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC); - sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - if (bio_multiple_segments(req->bio)) { - ioc->base_add_sg_single(psge, sgl_flags | - (blk_rq_bytes(req) - 4), pci_dma_out); - } else { - ioc->base_add_sg_single(psge, sgl_flags | - (blk_rq_bytes(req) - 4), dma_addr_out); - } - - /* incr sgel */ - psge += ioc->sge_size; - - /* READ sgel last */ - sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | - MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | - MPI2_SGE_FLAGS_END_OF_LIST); - sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - if (bio_multiple_segments(rsp->bio)) { - ioc->base_add_sg_single(psge, sgl_flags | - (blk_rq_bytes(rsp) + 4), pci_dma_in); - } else { - ioc->base_add_sg_single(psge, sgl_flags | - (blk_rq_bytes(rsp) + 4), dma_addr_in); - } - - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "%s - " - "sending smp request\n", ioc->name, __func__)); - - init_completion(&ioc->transport_cmds.done); - mpt2sas_base_put_smid_default(ioc, smid); - timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, - 10*HZ); - - if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) { - printk(MPT2SAS_ERR_FMT "%s : timeout\n", - __func__, ioc->name); - _debug_dump_mf(mpi_request, - sizeof(Mpi2SmpPassthroughRequest_t)/4); - if (!(ioc->transport_cmds.status & MPT2_CMD_RESET)) - issue_reset = 1; - goto issue_host_reset; - } - - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "%s - " - "complete\n", ioc->name, __func__)); - - if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) { - - mpi_reply = ioc->transport_cmds.reply; - - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT - "%s - reply data transfer size(%d)\n", - ioc->name, __func__, - le16_to_cpu(mpi_reply->ResponseDataLength))); - - memcpy(req->sense, mpi_reply, sizeof(*mpi_reply)); - req->sense_len = sizeof(*mpi_reply); - req->resid_len = 0; - rsp->resid_len -= - le16_to_cpu(mpi_reply->ResponseDataLength); - /* check if the resp needs to be copied from the allocated - * pci mem */ - if (bio_multiple_segments(rsp->bio)) { - u32 offset = 0; - u32 bytes_to_copy = - le16_to_cpu(mpi_reply->ResponseDataLength); - bio_for_each_segment(bvec, rsp->bio, iter) { - if (bytes_to_copy <= bvec.bv_len) { - memcpy(page_address(bvec.bv_page) + - bvec.bv_offset, pci_addr_in + - offset, bytes_to_copy); - break; - } else { - memcpy(page_address(bvec.bv_page) + - bvec.bv_offset, pci_addr_in + - offset, bvec.bv_len); - bytes_to_copy -= bvec.bv_len; - } - offset += bvec.bv_len; - } - } - } else { - dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT - "%s - no reply\n", ioc->name, __func__)); - rc = -ENXIO; - } - - issue_host_reset: - if (issue_reset) { - mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, - FORCE_BIG_HAMMER); - rc = -ETIMEDOUT; - } - - unmap: - if (dma_addr_out) - pci_unmap_single(ioc->pdev, dma_addr_out, blk_rq_bytes(req), - PCI_DMA_BIDIRECTIONAL); - if (dma_addr_in) - pci_unmap_single(ioc->pdev, dma_addr_in, blk_rq_bytes(rsp), - PCI_DMA_BIDIRECTIONAL); - - free_pci: - if (pci_addr_out) - pci_free_consistent(ioc->pdev, blk_rq_bytes(req), pci_addr_out, - pci_dma_out); - - if (pci_addr_in) - pci_free_consistent(ioc->pdev, blk_rq_bytes(rsp), pci_addr_in, - pci_dma_in); - - out: - ioc->transport_cmds.status = MPT2_CMD_NOT_USED; - mutex_unlock(&ioc->transport_cmds.mutex); - return rc; -} - -struct sas_function_template mpt2sas_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 *mpt2sas_transport_template; |