+++ /dev/null
-/*
- * 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_scsih_sas_device_find_by_sas_address(ioc,
- rphy->identify.sas_address);
- if (sas_device) {
- *identifier = sas_device->enclosure_logical_id;
- rc = 0;
- } 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_scsih_sas_device_find_by_sas_address(ioc,
- rphy->identify.sas_address);
- if (sas_device)
- rc = sas_device->slot;
- 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;
Code Review / kvmfornfv.git / blobdiff