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-rw-r--r--drivers/scsi/mpi3mr/mpi3mr_transport.c3291
1 files changed, 3291 insertions, 0 deletions
diff --git a/drivers/scsi/mpi3mr/mpi3mr_transport.c b/drivers/scsi/mpi3mr/mpi3mr_transport.c
new file mode 100644
index 000000000..5748bd936
--- /dev/null
+++ b/drivers/scsi/mpi3mr/mpi3mr_transport.c
@@ -0,0 +1,3291 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver for Broadcom MPI3 Storage Controllers
+ *
+ * Copyright (C) 2017-2022 Broadcom Inc.
+ * (mailto: mpi3mr-linuxdrv.pdl@broadcom.com)
+ *
+ */
+
+#include "mpi3mr.h"
+
+/**
+ * mpi3mr_post_transport_req - Issue transport requests and wait
+ * @mrioc: Adapter instance reference
+ * @request: Properly populated MPI3 request
+ * @request_sz: Size of the MPI3 request
+ * @reply: Pointer to return MPI3 reply
+ * @reply_sz: Size of the MPI3 reply buffer
+ * @timeout: Timeout in seconds
+ * @ioc_status: Pointer to return ioc status
+ *
+ * A generic function for posting MPI3 requests from the SAS
+ * transport layer that uses transport command infrastructure.
+ * This blocks for the completion of request for timeout seconds
+ * and if the request times out this function faults the
+ * controller with proper reason code.
+ *
+ * On successful completion of the request this function returns
+ * appropriate ioc status from the firmware back to the caller.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+static int mpi3mr_post_transport_req(struct mpi3mr_ioc *mrioc, void *request,
+ u16 request_sz, void *reply, u16 reply_sz, int timeout,
+ u16 *ioc_status)
+{
+ int retval = 0;
+
+ mutex_lock(&mrioc->transport_cmds.mutex);
+ if (mrioc->transport_cmds.state & MPI3MR_CMD_PENDING) {
+ retval = -1;
+ ioc_err(mrioc, "sending transport request failed due to command in use\n");
+ mutex_unlock(&mrioc->transport_cmds.mutex);
+ goto out;
+ }
+ mrioc->transport_cmds.state = MPI3MR_CMD_PENDING;
+ mrioc->transport_cmds.is_waiting = 1;
+ mrioc->transport_cmds.callback = NULL;
+ mrioc->transport_cmds.ioc_status = 0;
+ mrioc->transport_cmds.ioc_loginfo = 0;
+
+ init_completion(&mrioc->transport_cmds.done);
+ dprint_cfg_info(mrioc, "posting transport request\n");
+ if (mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO)
+ dprint_dump(request, request_sz, "transport_req");
+ retval = mpi3mr_admin_request_post(mrioc, request, request_sz, 1);
+ if (retval) {
+ ioc_err(mrioc, "posting transport request failed\n");
+ goto out_unlock;
+ }
+ wait_for_completion_timeout(&mrioc->transport_cmds.done,
+ (timeout * HZ));
+ if (!(mrioc->transport_cmds.state & MPI3MR_CMD_COMPLETE)) {
+ mpi3mr_check_rh_fault_ioc(mrioc,
+ MPI3MR_RESET_FROM_SAS_TRANSPORT_TIMEOUT);
+ ioc_err(mrioc, "transport request timed out\n");
+ retval = -1;
+ goto out_unlock;
+ }
+ *ioc_status = mrioc->transport_cmds.ioc_status &
+ MPI3_IOCSTATUS_STATUS_MASK;
+ if ((*ioc_status) != MPI3_IOCSTATUS_SUCCESS)
+ dprint_transport_err(mrioc,
+ "transport request returned with ioc_status(0x%04x), log_info(0x%08x)\n",
+ *ioc_status, mrioc->transport_cmds.ioc_loginfo);
+
+ if ((reply) && (mrioc->transport_cmds.state & MPI3MR_CMD_REPLY_VALID))
+ memcpy((u8 *)reply, mrioc->transport_cmds.reply, reply_sz);
+
+out_unlock:
+ mrioc->transport_cmds.state = MPI3MR_CMD_NOTUSED;
+ mutex_unlock(&mrioc->transport_cmds.mutex);
+
+out:
+ return retval;
+}
+
+/* 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];
+};
+
+/**
+ * mpi3mr_report_manufacture - obtain SMP report_manufacture
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of the expander device
+ * @edev: SAS transport layer sas_expander_device object
+ * @port_id: ID of the HBA port
+ *
+ * Fills in the sas_expander_device with manufacturing info.
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int mpi3mr_report_manufacture(struct mpi3mr_ioc *mrioc,
+ u64 sas_address, struct sas_expander_device *edev, u8 port_id)
+{
+ struct mpi3_smp_passthrough_request mpi_request;
+ struct mpi3_smp_passthrough_reply mpi_reply;
+ struct rep_manu_reply *manufacture_reply;
+ struct rep_manu_request *manufacture_request;
+ int rc = 0;
+ void *psge;
+ void *data_out = NULL;
+ dma_addr_t data_out_dma;
+ dma_addr_t data_in_dma;
+ size_t data_in_sz;
+ size_t data_out_sz;
+ u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
+ u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
+ u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
+ u16 ioc_status;
+ u8 *tmp;
+
+ if (mrioc->reset_in_progress) {
+ ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
+ return -EFAULT;
+ }
+
+ data_out_sz = sizeof(struct rep_manu_request);
+ data_in_sz = sizeof(struct rep_manu_reply);
+ data_out = dma_alloc_coherent(&mrioc->pdev->dev,
+ data_out_sz + data_in_sz, &data_out_dma, GFP_KERNEL);
+ if (!data_out) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ data_in_dma = data_out_dma + data_out_sz;
+ manufacture_reply = data_out + data_out_sz;
+
+ 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, request_sz);
+ memset(&mpi_reply, 0, reply_sz);
+ mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
+ mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
+ mpi_request.io_unit_port = (u8) port_id;
+ mpi_request.sas_address = cpu_to_le64(sas_address);
+
+ psge = &mpi_request.request_sge;
+ mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
+
+ psge = &mpi_request.response_sge;
+ mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
+
+ dprint_transport_info(mrioc,
+ "sending report manufacturer SMP request to sas_address(0x%016llx), port(%d)\n",
+ (unsigned long long)sas_address, port_id);
+
+ rc = mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
+ &mpi_reply, reply_sz,
+ MPI3MR_INTADMCMD_TIMEOUT, &ioc_status);
+ if (rc)
+ goto out;
+
+ dprint_transport_info(mrioc,
+ "report manufacturer SMP request completed with ioc_status(0x%04x)\n",
+ ioc_status);
+
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ dprint_transport_info(mrioc,
+ "report manufacturer - reply data transfer size(%d)\n",
+ le16_to_cpu(mpi_reply.response_data_length));
+
+ if (le16_to_cpu(mpi_reply.response_data_length) !=
+ sizeof(struct rep_manu_reply)) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ strscpy(edev->vendor_id, manufacture_reply->vendor_id,
+ SAS_EXPANDER_VENDOR_ID_LEN);
+ strscpy(edev->product_id, manufacture_reply->product_id,
+ SAS_EXPANDER_PRODUCT_ID_LEN);
+ strscpy(edev->product_rev, manufacture_reply->product_rev,
+ SAS_EXPANDER_PRODUCT_REV_LEN);
+ edev->level = manufacture_reply->sas_format & 1;
+ if (edev->level) {
+ strscpy(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;
+ }
+
+out:
+ if (data_out)
+ dma_free_coherent(&mrioc->pdev->dev, data_out_sz + data_in_sz,
+ data_out, data_out_dma);
+
+ return rc;
+}
+
+/**
+ * __mpi3mr_expander_find_by_handle - expander search by handle
+ * @mrioc: Adapter instance reference
+ * @handle: Firmware device handle of the expander
+ *
+ * Context: The caller should acquire sas_node_lock
+ *
+ * This searches for expander device based on handle, then
+ * returns the sas_node object.
+ *
+ * Return: Expander sas_node object reference or NULL
+ */
+struct mpi3mr_sas_node *__mpi3mr_expander_find_by_handle(struct mpi3mr_ioc
+ *mrioc, u16 handle)
+{
+ struct mpi3mr_sas_node *sas_expander, *r;
+
+ r = NULL;
+ list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
+ if (sas_expander->handle != handle)
+ continue;
+ r = sas_expander;
+ goto out;
+ }
+ out:
+ return r;
+}
+
+/**
+ * mpi3mr_is_expander_device - if device is an expander
+ * @device_info: Bitfield providing information about the device
+ *
+ * Return: 1 if the device is expander device, else 0.
+ */
+u8 mpi3mr_is_expander_device(u16 device_info)
+{
+ if ((device_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) ==
+ MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_EXPANDER)
+ return 1;
+ else
+ return 0;
+}
+
+/**
+ * mpi3mr_get_sas_address - retrieve sas_address for handle
+ * @mrioc: Adapter instance reference
+ * @handle: Firmware device handle
+ * @sas_address: Address to hold sas address
+ *
+ * This function issues device page0 read for a given device
+ * handle and gets the SAS address and return it back
+ *
+ * Return: 0 for success, non-zero for failure
+ */
+static int mpi3mr_get_sas_address(struct mpi3mr_ioc *mrioc, u16 handle,
+ u64 *sas_address)
+{
+ struct mpi3_device_page0 dev_pg0;
+ u16 ioc_status;
+ struct mpi3_device0_sas_sata_format *sasinf;
+
+ *sas_address = 0;
+
+ if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
+ sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
+ handle))) {
+ ioc_err(mrioc, "%s: device page0 read failed\n", __func__);
+ return -ENXIO;
+ }
+
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ ioc_err(mrioc, "device page read failed for handle(0x%04x), with ioc_status(0x%04x) failure at %s:%d/%s()!\n",
+ handle, ioc_status, __FILE__, __LINE__, __func__);
+ return -ENXIO;
+ }
+
+ if (le16_to_cpu(dev_pg0.flags) &
+ MPI3_DEVICE0_FLAGS_CONTROLLER_DEV_HANDLE)
+ *sas_address = mrioc->sas_hba.sas_address;
+ else if (dev_pg0.device_form == MPI3_DEVICE_DEVFORM_SAS_SATA) {
+ sasinf = &dev_pg0.device_specific.sas_sata_format;
+ *sas_address = le64_to_cpu(sasinf->sas_address);
+ } else {
+ ioc_err(mrioc, "%s: device_form(%d) is not SAS_SATA\n",
+ __func__, dev_pg0.device_form);
+ return -ENXIO;
+ }
+ return 0;
+}
+
+/**
+ * __mpi3mr_get_tgtdev_by_addr - target device search
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of the device
+ * @hba_port: HBA port entry
+ *
+ * This searches for target device from sas address and hba port
+ * pointer then return mpi3mr_tgt_dev object.
+ *
+ * Return: Valid tget_dev or NULL
+ */
+static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr(struct mpi3mr_ioc *mrioc,
+ u64 sas_address, struct mpi3mr_hba_port *hba_port)
+{
+ struct mpi3mr_tgt_dev *tgtdev;
+
+ assert_spin_locked(&mrioc->tgtdev_lock);
+
+ list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list)
+ if ((tgtdev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA) &&
+ (tgtdev->dev_spec.sas_sata_inf.sas_address == sas_address)
+ && (tgtdev->dev_spec.sas_sata_inf.hba_port == hba_port))
+ goto found_device;
+ return NULL;
+found_device:
+ mpi3mr_tgtdev_get(tgtdev);
+ return tgtdev;
+}
+
+/**
+ * mpi3mr_get_tgtdev_by_addr - target device search
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of the device
+ * @hba_port: HBA port entry
+ *
+ * This searches for target device from sas address and hba port
+ * pointer then return mpi3mr_tgt_dev object.
+ *
+ * Context: This function will acquire tgtdev_lock and will
+ * release before returning the mpi3mr_tgt_dev object.
+ *
+ * Return: Valid tget_dev or NULL
+ */
+static struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_addr(struct mpi3mr_ioc *mrioc,
+ u64 sas_address, struct mpi3mr_hba_port *hba_port)
+{
+ struct mpi3mr_tgt_dev *tgtdev = NULL;
+ unsigned long flags;
+
+ if (!hba_port)
+ goto out;
+
+ spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
+ tgtdev = __mpi3mr_get_tgtdev_by_addr(mrioc, sas_address, hba_port);
+ spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
+
+out:
+ return tgtdev;
+}
+
+/**
+ * mpi3mr_remove_device_by_sas_address - remove the device
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of the device
+ * @hba_port: HBA port entry
+ *
+ * This searches for target device using sas address and hba
+ * port pointer then removes it from the OS.
+ *
+ * Return: None
+ */
+static void mpi3mr_remove_device_by_sas_address(struct mpi3mr_ioc *mrioc,
+ u64 sas_address, struct mpi3mr_hba_port *hba_port)
+{
+ struct mpi3mr_tgt_dev *tgtdev = NULL;
+ unsigned long flags;
+ u8 was_on_tgtdev_list = 0;
+
+ if (!hba_port)
+ return;
+
+ spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
+ tgtdev = __mpi3mr_get_tgtdev_by_addr(mrioc,
+ sas_address, hba_port);
+ if (tgtdev) {
+ if (!list_empty(&tgtdev->list)) {
+ list_del_init(&tgtdev->list);
+ was_on_tgtdev_list = 1;
+ mpi3mr_tgtdev_put(tgtdev);
+ }
+ }
+ spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
+ if (was_on_tgtdev_list) {
+ if (tgtdev->host_exposed)
+ mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
+ mpi3mr_tgtdev_put(tgtdev);
+ }
+}
+
+/**
+ * __mpi3mr_get_tgtdev_by_addr_and_rphy - target device search
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of the device
+ * @rphy: SAS transport layer rphy object
+ *
+ * This searches for target device from sas address and rphy
+ * pointer then return mpi3mr_tgt_dev object.
+ *
+ * Return: Valid tget_dev or NULL
+ */
+struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr_and_rphy(
+ struct mpi3mr_ioc *mrioc, u64 sas_address, struct sas_rphy *rphy)
+{
+ struct mpi3mr_tgt_dev *tgtdev;
+
+ assert_spin_locked(&mrioc->tgtdev_lock);
+
+ list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list)
+ if ((tgtdev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA) &&
+ (tgtdev->dev_spec.sas_sata_inf.sas_address == sas_address)
+ && (tgtdev->dev_spec.sas_sata_inf.rphy == rphy))
+ goto found_device;
+ return NULL;
+found_device:
+ mpi3mr_tgtdev_get(tgtdev);
+ return tgtdev;
+}
+
+/**
+ * mpi3mr_expander_find_by_sas_address - sas expander search
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of expander
+ * @hba_port: HBA port entry
+ *
+ * Return: A valid SAS expander node or NULL.
+ *
+ */
+static struct mpi3mr_sas_node *mpi3mr_expander_find_by_sas_address(
+ struct mpi3mr_ioc *mrioc, u64 sas_address,
+ struct mpi3mr_hba_port *hba_port)
+{
+ struct mpi3mr_sas_node *sas_expander, *r = NULL;
+
+ if (!hba_port)
+ goto out;
+
+ list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
+ if ((sas_expander->sas_address != sas_address) ||
+ (sas_expander->hba_port != hba_port))
+ continue;
+ r = sas_expander;
+ goto out;
+ }
+out:
+ return r;
+}
+
+/**
+ * __mpi3mr_sas_node_find_by_sas_address - sas node search
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of expander or sas host
+ * @hba_port: HBA port entry
+ * Context: Caller should acquire mrioc->sas_node_lock.
+ *
+ * If the SAS address indicates the device is direct attached to
+ * the controller (controller's SAS address) then the SAS node
+ * associated with the controller is returned back else the SAS
+ * address and hba port are used to identify the exact expander
+ * and the associated sas_node object is returned. If there is
+ * no match NULL is returned.
+ *
+ * Return: A valid SAS node or NULL.
+ *
+ */
+static struct mpi3mr_sas_node *__mpi3mr_sas_node_find_by_sas_address(
+ struct mpi3mr_ioc *mrioc, u64 sas_address,
+ struct mpi3mr_hba_port *hba_port)
+{
+
+ if (mrioc->sas_hba.sas_address == sas_address)
+ return &mrioc->sas_hba;
+ return mpi3mr_expander_find_by_sas_address(mrioc, sas_address,
+ hba_port);
+}
+
+/**
+ * mpi3mr_parent_present - Is parent present for a phy
+ * @mrioc: Adapter instance reference
+ * @phy: SAS transport layer phy object
+ *
+ * Return: 0 if parent is present else non-zero
+ */
+static int mpi3mr_parent_present(struct mpi3mr_ioc *mrioc, struct sas_phy *phy)
+{
+ unsigned long flags;
+ struct mpi3mr_hba_port *hba_port = phy->hostdata;
+
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ if (__mpi3mr_sas_node_find_by_sas_address(mrioc,
+ phy->identify.sas_address,
+ hba_port) == NULL) {
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+ return -1;
+ }
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+ return 0;
+}
+
+/**
+ * mpi3mr_convert_phy_link_rate -
+ * @link_rate: link rate as defined in the MPI header
+ *
+ * Convert link_rate from mpi format into sas_transport layer
+ * form.
+ *
+ * Return: A valid SAS transport layer defined link rate
+ */
+static enum sas_linkrate mpi3mr_convert_phy_link_rate(u8 link_rate)
+{
+ enum sas_linkrate rc;
+
+ switch (link_rate) {
+ case MPI3_SAS_NEG_LINK_RATE_1_5:
+ rc = SAS_LINK_RATE_1_5_GBPS;
+ break;
+ case MPI3_SAS_NEG_LINK_RATE_3_0:
+ rc = SAS_LINK_RATE_3_0_GBPS;
+ break;
+ case MPI3_SAS_NEG_LINK_RATE_6_0:
+ rc = SAS_LINK_RATE_6_0_GBPS;
+ break;
+ case MPI3_SAS_NEG_LINK_RATE_12_0:
+ rc = SAS_LINK_RATE_12_0_GBPS;
+ break;
+ case MPI3_SAS_NEG_LINK_RATE_22_5:
+ rc = SAS_LINK_RATE_22_5_GBPS;
+ break;
+ case MPI3_SAS_NEG_LINK_RATE_PHY_DISABLED:
+ rc = SAS_PHY_DISABLED;
+ break;
+ case MPI3_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED:
+ rc = SAS_LINK_RATE_FAILED;
+ break;
+ case MPI3_SAS_NEG_LINK_RATE_PORT_SELECTOR:
+ rc = SAS_SATA_PORT_SELECTOR;
+ break;
+ case MPI3_SAS_NEG_LINK_RATE_SMP_RESET_IN_PROGRESS:
+ rc = SAS_PHY_RESET_IN_PROGRESS;
+ break;
+ case MPI3_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE:
+ case MPI3_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE:
+ default:
+ rc = SAS_LINK_RATE_UNKNOWN;
+ break;
+ }
+ return rc;
+}
+
+/**
+ * mpi3mr_delete_sas_phy - Remove a single phy from port
+ * @mrioc: Adapter instance reference
+ * @mr_sas_port: Internal Port object
+ * @mr_sas_phy: Internal Phy object
+ *
+ * Return: None.
+ */
+static void mpi3mr_delete_sas_phy(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_sas_port *mr_sas_port,
+ struct mpi3mr_sas_phy *mr_sas_phy)
+{
+ u64 sas_address = mr_sas_port->remote_identify.sas_address;
+
+ dev_info(&mr_sas_phy->phy->dev,
+ "remove: sas_address(0x%016llx), phy(%d)\n",
+ (unsigned long long) sas_address, mr_sas_phy->phy_id);
+
+ list_del(&mr_sas_phy->port_siblings);
+ mr_sas_port->num_phys--;
+ mr_sas_port->phy_mask &= ~(1 << mr_sas_phy->phy_id);
+ if (mr_sas_port->lowest_phy == mr_sas_phy->phy_id)
+ mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1;
+ sas_port_delete_phy(mr_sas_port->port, mr_sas_phy->phy);
+ mr_sas_phy->phy_belongs_to_port = 0;
+}
+
+/**
+ * mpi3mr_add_sas_phy - Adding a single phy to a port
+ * @mrioc: Adapter instance reference
+ * @mr_sas_port: Internal Port object
+ * @mr_sas_phy: Internal Phy object
+ *
+ * Return: None.
+ */
+static void mpi3mr_add_sas_phy(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_sas_port *mr_sas_port,
+ struct mpi3mr_sas_phy *mr_sas_phy)
+{
+ u64 sas_address = mr_sas_port->remote_identify.sas_address;
+
+ dev_info(&mr_sas_phy->phy->dev,
+ "add: sas_address(0x%016llx), phy(%d)\n", (unsigned long long)
+ sas_address, mr_sas_phy->phy_id);
+
+ list_add_tail(&mr_sas_phy->port_siblings, &mr_sas_port->phy_list);
+ mr_sas_port->num_phys++;
+ mr_sas_port->phy_mask |= (1 << mr_sas_phy->phy_id);
+ if (mr_sas_phy->phy_id < mr_sas_port->lowest_phy)
+ mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1;
+ sas_port_add_phy(mr_sas_port->port, mr_sas_phy->phy);
+ mr_sas_phy->phy_belongs_to_port = 1;
+}
+
+/**
+ * mpi3mr_add_phy_to_an_existing_port - add phy to existing port
+ * @mrioc: Adapter instance reference
+ * @mr_sas_node: Internal sas node object (expander or host)
+ * @mr_sas_phy: Internal Phy object *
+ * @sas_address: SAS address of device/expander were phy needs
+ * to be added to
+ * @hba_port: HBA port entry
+ *
+ * Return: None.
+ */
+static void mpi3mr_add_phy_to_an_existing_port(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_sas_node *mr_sas_node, struct mpi3mr_sas_phy *mr_sas_phy,
+ u64 sas_address, struct mpi3mr_hba_port *hba_port)
+{
+ struct mpi3mr_sas_port *mr_sas_port;
+ struct mpi3mr_sas_phy *srch_phy;
+
+ if (mr_sas_phy->phy_belongs_to_port == 1)
+ return;
+
+ if (!hba_port)
+ return;
+
+ list_for_each_entry(mr_sas_port, &mr_sas_node->sas_port_list,
+ port_list) {
+ if (mr_sas_port->remote_identify.sas_address !=
+ sas_address)
+ continue;
+ if (mr_sas_port->hba_port != hba_port)
+ continue;
+ list_for_each_entry(srch_phy, &mr_sas_port->phy_list,
+ port_siblings) {
+ if (srch_phy == mr_sas_phy)
+ return;
+ }
+ mpi3mr_add_sas_phy(mrioc, mr_sas_port, mr_sas_phy);
+ return;
+ }
+}
+
+/**
+ * mpi3mr_delete_sas_port - helper function to removing a port
+ * @mrioc: Adapter instance reference
+ * @mr_sas_port: Internal Port object
+ *
+ * Return: None.
+ */
+static void mpi3mr_delete_sas_port(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_sas_port *mr_sas_port)
+{
+ u64 sas_address = mr_sas_port->remote_identify.sas_address;
+ struct mpi3mr_hba_port *hba_port = mr_sas_port->hba_port;
+ enum sas_device_type device_type =
+ mr_sas_port->remote_identify.device_type;
+
+ dev_info(&mr_sas_port->port->dev,
+ "remove: sas_address(0x%016llx)\n",
+ (unsigned long long) sas_address);
+
+ if (device_type == SAS_END_DEVICE)
+ mpi3mr_remove_device_by_sas_address(mrioc, sas_address,
+ hba_port);
+
+ else if (device_type == SAS_EDGE_EXPANDER_DEVICE ||
+ device_type == SAS_FANOUT_EXPANDER_DEVICE)
+ mpi3mr_expander_remove(mrioc, sas_address, hba_port);
+}
+
+/**
+ * mpi3mr_del_phy_from_an_existing_port - del phy from a port
+ * @mrioc: Adapter instance reference
+ * @mr_sas_node: Internal sas node object (expander or host)
+ * @mr_sas_phy: Internal Phy object
+ *
+ * Return: None.
+ */
+static void mpi3mr_del_phy_from_an_existing_port(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_sas_node *mr_sas_node, struct mpi3mr_sas_phy *mr_sas_phy)
+{
+ struct mpi3mr_sas_port *mr_sas_port, *next;
+ struct mpi3mr_sas_phy *srch_phy;
+
+ if (mr_sas_phy->phy_belongs_to_port == 0)
+ return;
+
+ list_for_each_entry_safe(mr_sas_port, next, &mr_sas_node->sas_port_list,
+ port_list) {
+ list_for_each_entry(srch_phy, &mr_sas_port->phy_list,
+ port_siblings) {
+ if (srch_phy != mr_sas_phy)
+ continue;
+ if ((mr_sas_port->num_phys == 1) &&
+ !mrioc->reset_in_progress)
+ mpi3mr_delete_sas_port(mrioc, mr_sas_port);
+ else
+ mpi3mr_delete_sas_phy(mrioc, mr_sas_port,
+ mr_sas_phy);
+ return;
+ }
+ }
+}
+
+/**
+ * mpi3mr_sas_port_sanity_check - sanity check while adding port
+ * @mrioc: Adapter instance reference
+ * @mr_sas_node: Internal sas node object (expander or host)
+ * @sas_address: SAS address of device/expander
+ * @hba_port: HBA port entry
+ *
+ * Verifies whether the Phys attached to a device with the given
+ * SAS address already belongs to an existing sas port if so
+ * will remove those phys from the sas port
+ *
+ * Return: None.
+ */
+static void mpi3mr_sas_port_sanity_check(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_sas_node *mr_sas_node, u64 sas_address,
+ struct mpi3mr_hba_port *hba_port)
+{
+ int i;
+
+ for (i = 0; i < mr_sas_node->num_phys; i++) {
+ if ((mr_sas_node->phy[i].remote_identify.sas_address !=
+ sas_address) || (mr_sas_node->phy[i].hba_port != hba_port))
+ continue;
+ if (mr_sas_node->phy[i].phy_belongs_to_port == 1)
+ mpi3mr_del_phy_from_an_existing_port(mrioc,
+ mr_sas_node, &mr_sas_node->phy[i]);
+ }
+}
+
+/**
+ * mpi3mr_set_identify - set identify for phys and end devices
+ * @mrioc: Adapter instance reference
+ * @handle: Firmware device handle
+ * @identify: SAS transport layer's identify info
+ *
+ * Populates sas identify info for a specific device.
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int mpi3mr_set_identify(struct mpi3mr_ioc *mrioc, u16 handle,
+ struct sas_identify *identify)
+{
+
+ struct mpi3_device_page0 device_pg0;
+ struct mpi3_device0_sas_sata_format *sasinf;
+ u16 device_info;
+ u16 ioc_status;
+
+ if (mrioc->reset_in_progress) {
+ ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
+ return -EFAULT;
+ }
+
+ if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &device_pg0,
+ sizeof(device_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE, handle))) {
+ ioc_err(mrioc, "%s: device page0 read failed\n", __func__);
+ return -ENXIO;
+ }
+
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ ioc_err(mrioc, "device page read failed for handle(0x%04x), with ioc_status(0x%04x) failure at %s:%d/%s()!\n",
+ handle, ioc_status, __FILE__, __LINE__, __func__);
+ return -EIO;
+ }
+
+ memset(identify, 0, sizeof(struct sas_identify));
+ sasinf = &device_pg0.device_specific.sas_sata_format;
+ device_info = le16_to_cpu(sasinf->device_info);
+
+ /* sas_address */
+ identify->sas_address = le64_to_cpu(sasinf->sas_address);
+
+ /* phy number of the parent device this device is linked to */
+ identify->phy_identifier = sasinf->phy_num;
+
+ /* device_type */
+ switch (device_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) {
+ case MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_NO_DEVICE:
+ identify->device_type = SAS_PHY_UNUSED;
+ break;
+ case MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_END_DEVICE:
+ identify->device_type = SAS_END_DEVICE;
+ break;
+ case MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_EXPANDER:
+ identify->device_type = SAS_EDGE_EXPANDER_DEVICE;
+ break;
+ }
+
+ /* initiator_port_protocols */
+ if (device_info & MPI3_SAS_DEVICE_INFO_SSP_INITIATOR)
+ identify->initiator_port_protocols |= SAS_PROTOCOL_SSP;
+ /* MPI3.0 doesn't have define for SATA INIT so setting both here*/
+ if (device_info & MPI3_SAS_DEVICE_INFO_STP_INITIATOR)
+ identify->initiator_port_protocols |= (SAS_PROTOCOL_STP |
+ SAS_PROTOCOL_SATA);
+ if (device_info & MPI3_SAS_DEVICE_INFO_SMP_INITIATOR)
+ identify->initiator_port_protocols |= SAS_PROTOCOL_SMP;
+
+ /* target_port_protocols */
+ if (device_info & MPI3_SAS_DEVICE_INFO_SSP_TARGET)
+ identify->target_port_protocols |= SAS_PROTOCOL_SSP;
+ /* MPI3.0 doesn't have define for STP Target so setting both here*/
+ if (device_info & MPI3_SAS_DEVICE_INFO_STP_SATA_TARGET)
+ identify->target_port_protocols |= (SAS_PROTOCOL_STP |
+ SAS_PROTOCOL_SATA);
+ if (device_info & MPI3_SAS_DEVICE_INFO_SMP_TARGET)
+ identify->target_port_protocols |= SAS_PROTOCOL_SMP;
+ return 0;
+}
+
+/**
+ * mpi3mr_add_host_phy - report sas_host phy to SAS transport
+ * @mrioc: Adapter instance reference
+ * @mr_sas_phy: Internal Phy object
+ * @phy_pg0: SAS phy page 0
+ * @parent_dev: Prent device class object
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int mpi3mr_add_host_phy(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_sas_phy *mr_sas_phy, struct mpi3_sas_phy_page0 phy_pg0,
+ struct device *parent_dev)
+{
+ struct sas_phy *phy;
+ int phy_index = mr_sas_phy->phy_id;
+
+
+ INIT_LIST_HEAD(&mr_sas_phy->port_siblings);
+ phy = sas_phy_alloc(parent_dev, phy_index);
+ if (!phy) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ return -1;
+ }
+ if ((mpi3mr_set_identify(mrioc, mr_sas_phy->handle,
+ &mr_sas_phy->identify))) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ sas_phy_free(phy);
+ return -1;
+ }
+ phy->identify = mr_sas_phy->identify;
+ mr_sas_phy->attached_handle = le16_to_cpu(phy_pg0.attached_dev_handle);
+ if (mr_sas_phy->attached_handle)
+ mpi3mr_set_identify(mrioc, mr_sas_phy->attached_handle,
+ &mr_sas_phy->remote_identify);
+ phy->identify.phy_identifier = mr_sas_phy->phy_id;
+ phy->negotiated_linkrate = mpi3mr_convert_phy_link_rate(
+ (phy_pg0.negotiated_link_rate &
+ MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
+ MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
+ phy->minimum_linkrate_hw = mpi3mr_convert_phy_link_rate(
+ phy_pg0.hw_link_rate & MPI3_SAS_HWRATE_MIN_RATE_MASK);
+ phy->maximum_linkrate_hw = mpi3mr_convert_phy_link_rate(
+ phy_pg0.hw_link_rate >> 4);
+ phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
+ phy_pg0.programmed_link_rate & MPI3_SAS_PRATE_MIN_RATE_MASK);
+ phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
+ phy_pg0.programmed_link_rate >> 4);
+ phy->hostdata = mr_sas_phy->hba_port;
+
+ if ((sas_phy_add(phy))) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ sas_phy_free(phy);
+ return -1;
+ }
+ if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
+ dev_info(&phy->dev,
+ "add: handle(0x%04x), sas_address(0x%016llx)\n"
+ "\tattached_handle(0x%04x), sas_address(0x%016llx)\n",
+ mr_sas_phy->handle, (unsigned long long)
+ mr_sas_phy->identify.sas_address,
+ mr_sas_phy->attached_handle,
+ (unsigned long long)
+ mr_sas_phy->remote_identify.sas_address);
+ mr_sas_phy->phy = phy;
+ return 0;
+}
+
+/**
+ * mpi3mr_add_expander_phy - report expander phy to transport
+ * @mrioc: Adapter instance reference
+ * @mr_sas_phy: Internal Phy object
+ * @expander_pg1: SAS Expander page 1
+ * @parent_dev: Parent device class object
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int mpi3mr_add_expander_phy(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_sas_phy *mr_sas_phy,
+ struct mpi3_sas_expander_page1 expander_pg1,
+ struct device *parent_dev)
+{
+ struct sas_phy *phy;
+ int phy_index = mr_sas_phy->phy_id;
+
+ INIT_LIST_HEAD(&mr_sas_phy->port_siblings);
+ phy = sas_phy_alloc(parent_dev, phy_index);
+ if (!phy) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ return -1;
+ }
+ if ((mpi3mr_set_identify(mrioc, mr_sas_phy->handle,
+ &mr_sas_phy->identify))) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ sas_phy_free(phy);
+ return -1;
+ }
+ phy->identify = mr_sas_phy->identify;
+ mr_sas_phy->attached_handle =
+ le16_to_cpu(expander_pg1.attached_dev_handle);
+ if (mr_sas_phy->attached_handle)
+ mpi3mr_set_identify(mrioc, mr_sas_phy->attached_handle,
+ &mr_sas_phy->remote_identify);
+ phy->identify.phy_identifier = mr_sas_phy->phy_id;
+ phy->negotiated_linkrate = mpi3mr_convert_phy_link_rate(
+ (expander_pg1.negotiated_link_rate &
+ MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
+ MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
+ phy->minimum_linkrate_hw = mpi3mr_convert_phy_link_rate(
+ expander_pg1.hw_link_rate & MPI3_SAS_HWRATE_MIN_RATE_MASK);
+ phy->maximum_linkrate_hw = mpi3mr_convert_phy_link_rate(
+ expander_pg1.hw_link_rate >> 4);
+ phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
+ expander_pg1.programmed_link_rate & MPI3_SAS_PRATE_MIN_RATE_MASK);
+ phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
+ expander_pg1.programmed_link_rate >> 4);
+ phy->hostdata = mr_sas_phy->hba_port;
+
+ if ((sas_phy_add(phy))) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ sas_phy_free(phy);
+ return -1;
+ }
+ if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
+ dev_info(&phy->dev,
+ "add: handle(0x%04x), sas_address(0x%016llx)\n"
+ "\tattached_handle(0x%04x), sas_address(0x%016llx)\n",
+ mr_sas_phy->handle, (unsigned long long)
+ mr_sas_phy->identify.sas_address,
+ mr_sas_phy->attached_handle,
+ (unsigned long long)
+ mr_sas_phy->remote_identify.sas_address);
+ mr_sas_phy->phy = phy;
+ return 0;
+}
+
+/**
+ * mpi3mr_alloc_hba_port - alloc hba port object
+ * @mrioc: Adapter instance reference
+ * @port_id: Port number
+ *
+ * Alloc memory for hba port object.
+ */
+static struct mpi3mr_hba_port *
+mpi3mr_alloc_hba_port(struct mpi3mr_ioc *mrioc, u16 port_id)
+{
+ struct mpi3mr_hba_port *hba_port;
+
+ hba_port = kzalloc(sizeof(struct mpi3mr_hba_port),
+ GFP_KERNEL);
+ if (!hba_port)
+ return NULL;
+ hba_port->port_id = port_id;
+ ioc_info(mrioc, "hba_port entry: %p, port: %d is added to hba_port list\n",
+ hba_port, hba_port->port_id);
+ list_add_tail(&hba_port->list, &mrioc->hba_port_table_list);
+ return hba_port;
+}
+
+/**
+ * mpi3mr_get_hba_port_by_id - find hba port by id
+ * @mrioc: Adapter instance reference
+ * @port_id - Port ID to search
+ *
+ * Return: mpi3mr_hba_port reference for the matched port
+ */
+
+struct mpi3mr_hba_port *mpi3mr_get_hba_port_by_id(struct mpi3mr_ioc *mrioc,
+ u8 port_id)
+{
+ struct mpi3mr_hba_port *port, *port_next;
+
+ list_for_each_entry_safe(port, port_next,
+ &mrioc->hba_port_table_list, list) {
+ if (port->port_id != port_id)
+ continue;
+ if (port->flags & MPI3MR_HBA_PORT_FLAG_DIRTY)
+ continue;
+ return port;
+ }
+
+ return NULL;
+}
+
+/**
+ * mpi3mr_update_links - refreshing SAS phy link changes
+ * @mrioc: Adapter instance reference
+ * @sas_address_parent: SAS address of parent expander or host
+ * @handle: Firmware device handle of attached device
+ * @phy_number: Phy number
+ * @link_rate: New link rate
+ * @hba_port: HBA port entry
+ *
+ * Return: None.
+ */
+void mpi3mr_update_links(struct mpi3mr_ioc *mrioc,
+ u64 sas_address_parent, u16 handle, u8 phy_number, u8 link_rate,
+ struct mpi3mr_hba_port *hba_port)
+{
+ unsigned long flags;
+ struct mpi3mr_sas_node *mr_sas_node;
+ struct mpi3mr_sas_phy *mr_sas_phy;
+
+ if (mrioc->reset_in_progress)
+ return;
+
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ mr_sas_node = __mpi3mr_sas_node_find_by_sas_address(mrioc,
+ sas_address_parent, hba_port);
+ if (!mr_sas_node) {
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+ return;
+ }
+
+ mr_sas_phy = &mr_sas_node->phy[phy_number];
+ mr_sas_phy->attached_handle = handle;
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+ if (handle && (link_rate >= MPI3_SAS_NEG_LINK_RATE_1_5)) {
+ mpi3mr_set_identify(mrioc, handle,
+ &mr_sas_phy->remote_identify);
+ mpi3mr_add_phy_to_an_existing_port(mrioc, mr_sas_node,
+ mr_sas_phy, mr_sas_phy->remote_identify.sas_address,
+ hba_port);
+ } else
+ memset(&mr_sas_phy->remote_identify, 0, sizeof(struct
+ sas_identify));
+
+ if (mr_sas_phy->phy)
+ mr_sas_phy->phy->negotiated_linkrate =
+ mpi3mr_convert_phy_link_rate(link_rate);
+
+ if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
+ dev_info(&mr_sas_phy->phy->dev,
+ "refresh: parent sas_address(0x%016llx),\n"
+ "\tlink_rate(0x%02x), phy(%d)\n"
+ "\tattached_handle(0x%04x), sas_address(0x%016llx)\n",
+ (unsigned long long)sas_address_parent,
+ link_rate, phy_number, handle, (unsigned long long)
+ mr_sas_phy->remote_identify.sas_address);
+}
+
+/**
+ * mpi3mr_sas_host_refresh - refreshing sas host object contents
+ * @mrioc: Adapter instance reference
+ *
+ * This function refreshes the controllers phy information and
+ * updates the SAS transport layer with updated information,
+ * this is executed for each device addition or device info
+ * change events
+ *
+ * Return: None.
+ */
+void mpi3mr_sas_host_refresh(struct mpi3mr_ioc *mrioc)
+{
+ int i;
+ u8 link_rate;
+ u16 sz, port_id, attached_handle;
+ struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
+
+ dprint_transport_info(mrioc,
+ "updating handles for sas_host(0x%016llx)\n",
+ (unsigned long long)mrioc->sas_hba.sas_address);
+
+ sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
+ (mrioc->sas_hba.num_phys *
+ sizeof(struct mpi3_sas_io_unit0_phy_data));
+ sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
+ if (!sas_io_unit_pg0)
+ return;
+ if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out;
+ }
+
+ mrioc->sas_hba.handle = 0;
+ for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
+ if (sas_io_unit_pg0->phy_data[i].phy_flags &
+ (MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
+ MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))
+ continue;
+ link_rate =
+ sas_io_unit_pg0->phy_data[i].negotiated_link_rate >> 4;
+ if (!mrioc->sas_hba.handle)
+ mrioc->sas_hba.handle = le16_to_cpu(
+ sas_io_unit_pg0->phy_data[i].controller_dev_handle);
+ port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
+ if (!(mpi3mr_get_hba_port_by_id(mrioc, port_id)))
+ if (!mpi3mr_alloc_hba_port(mrioc, port_id))
+ goto out;
+
+ mrioc->sas_hba.phy[i].handle = mrioc->sas_hba.handle;
+ attached_handle = le16_to_cpu(
+ sas_io_unit_pg0->phy_data[i].attached_dev_handle);
+ if (attached_handle && link_rate < MPI3_SAS_NEG_LINK_RATE_1_5)
+ link_rate = MPI3_SAS_NEG_LINK_RATE_1_5;
+ mrioc->sas_hba.phy[i].hba_port =
+ mpi3mr_get_hba_port_by_id(mrioc, port_id);
+ mpi3mr_update_links(mrioc, mrioc->sas_hba.sas_address,
+ attached_handle, i, link_rate,
+ mrioc->sas_hba.phy[i].hba_port);
+ }
+ out:
+ kfree(sas_io_unit_pg0);
+}
+
+/**
+ * mpi3mr_sas_host_add - create sas host object
+ * @mrioc: Adapter instance reference
+ *
+ * This function creates the controllers phy information and
+ * updates the SAS transport layer with updated information,
+ * this is executed for first device addition or device info
+ * change event.
+ *
+ * Return: None.
+ */
+void mpi3mr_sas_host_add(struct mpi3mr_ioc *mrioc)
+{
+ int i;
+ u16 sz, num_phys = 1, port_id, ioc_status;
+ struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
+ struct mpi3_sas_phy_page0 phy_pg0;
+ struct mpi3_device_page0 dev_pg0;
+ struct mpi3_enclosure_page0 encl_pg0;
+ struct mpi3_device0_sas_sata_format *sasinf;
+
+ sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
+ (num_phys * sizeof(struct mpi3_sas_io_unit0_phy_data));
+ sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
+ if (!sas_io_unit_pg0)
+ return;
+
+ if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out;
+ }
+ num_phys = sas_io_unit_pg0->num_phys;
+ kfree(sas_io_unit_pg0);
+
+ mrioc->sas_hba.host_node = 1;
+ INIT_LIST_HEAD(&mrioc->sas_hba.sas_port_list);
+ mrioc->sas_hba.parent_dev = &mrioc->shost->shost_gendev;
+ mrioc->sas_hba.phy = kcalloc(num_phys,
+ sizeof(struct mpi3mr_sas_phy), GFP_KERNEL);
+ if (!mrioc->sas_hba.phy)
+ return;
+
+ mrioc->sas_hba.num_phys = num_phys;
+
+ sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
+ (num_phys * sizeof(struct mpi3_sas_io_unit0_phy_data));
+ sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
+ if (!sas_io_unit_pg0)
+ return;
+
+ if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out;
+ }
+
+ mrioc->sas_hba.handle = 0;
+ for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
+ if (sas_io_unit_pg0->phy_data[i].phy_flags &
+ (MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
+ MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))
+ continue;
+ if (mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
+ sizeof(struct mpi3_sas_phy_page0),
+ MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, i)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out;
+ }
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out;
+ }
+
+ if (!mrioc->sas_hba.handle)
+ mrioc->sas_hba.handle = le16_to_cpu(
+ sas_io_unit_pg0->phy_data[i].controller_dev_handle);
+ port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
+
+ if (!(mpi3mr_get_hba_port_by_id(mrioc, port_id)))
+ if (!mpi3mr_alloc_hba_port(mrioc, port_id))
+ goto out;
+
+ mrioc->sas_hba.phy[i].handle = mrioc->sas_hba.handle;
+ mrioc->sas_hba.phy[i].phy_id = i;
+ mrioc->sas_hba.phy[i].hba_port =
+ mpi3mr_get_hba_port_by_id(mrioc, port_id);
+ mpi3mr_add_host_phy(mrioc, &mrioc->sas_hba.phy[i],
+ phy_pg0, mrioc->sas_hba.parent_dev);
+ }
+ if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
+ sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
+ mrioc->sas_hba.handle))) {
+ ioc_err(mrioc, "%s: device page0 read failed\n", __func__);
+ goto out;
+ }
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ ioc_err(mrioc, "device page read failed for handle(0x%04x), with ioc_status(0x%04x) failure at %s:%d/%s()!\n",
+ mrioc->sas_hba.handle, ioc_status, __FILE__, __LINE__,
+ __func__);
+ goto out;
+ }
+ mrioc->sas_hba.enclosure_handle =
+ le16_to_cpu(dev_pg0.enclosure_handle);
+ sasinf = &dev_pg0.device_specific.sas_sata_format;
+ mrioc->sas_hba.sas_address =
+ le64_to_cpu(sasinf->sas_address);
+ ioc_info(mrioc,
+ "host_add: handle(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
+ mrioc->sas_hba.handle,
+ (unsigned long long) mrioc->sas_hba.sas_address,
+ mrioc->sas_hba.num_phys);
+
+ if (mrioc->sas_hba.enclosure_handle) {
+ if (!(mpi3mr_cfg_get_enclosure_pg0(mrioc, &ioc_status,
+ &encl_pg0, sizeof(encl_pg0),
+ MPI3_ENCLOS_PGAD_FORM_HANDLE,
+ mrioc->sas_hba.enclosure_handle)) &&
+ (ioc_status == MPI3_IOCSTATUS_SUCCESS))
+ mrioc->sas_hba.enclosure_logical_id =
+ le64_to_cpu(encl_pg0.enclosure_logical_id);
+ }
+
+out:
+ kfree(sas_io_unit_pg0);
+}
+
+/**
+ * mpi3mr_sas_port_add - Expose the SAS device to the SAS TL
+ * @mrioc: Adapter instance reference
+ * @handle: Firmware device handle of the attached device
+ * @sas_address_parent: sas address of parent expander or host
+ * @hba_port: HBA port entry
+ *
+ * This function creates a new sas port object for the given end
+ * device matching sas address and hba_port and adds it to the
+ * sas_node's sas_port_list and expose the attached sas device
+ * to the SAS transport layer through sas_rphy_add.
+ *
+ * Returns a valid mpi3mr_sas_port reference or NULL.
+ */
+static struct mpi3mr_sas_port *mpi3mr_sas_port_add(struct mpi3mr_ioc *mrioc,
+ u16 handle, u64 sas_address_parent, struct mpi3mr_hba_port *hba_port)
+{
+ struct mpi3mr_sas_phy *mr_sas_phy, *next;
+ struct mpi3mr_sas_port *mr_sas_port;
+ unsigned long flags;
+ struct mpi3mr_sas_node *mr_sas_node;
+ struct sas_rphy *rphy;
+ struct mpi3mr_tgt_dev *tgtdev = NULL;
+ int i;
+ struct sas_port *port;
+
+ if (!hba_port) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ return NULL;
+ }
+
+ mr_sas_port = kzalloc(sizeof(struct mpi3mr_sas_port), GFP_KERNEL);
+ if (!mr_sas_port)
+ return NULL;
+
+ INIT_LIST_HEAD(&mr_sas_port->port_list);
+ INIT_LIST_HEAD(&mr_sas_port->phy_list);
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ mr_sas_node = __mpi3mr_sas_node_find_by_sas_address(mrioc,
+ sas_address_parent, hba_port);
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+ if (!mr_sas_node) {
+ ioc_err(mrioc, "%s:could not find parent sas_address(0x%016llx)!\n",
+ __func__, (unsigned long long)sas_address_parent);
+ goto out_fail;
+ }
+
+ if ((mpi3mr_set_identify(mrioc, handle,
+ &mr_sas_port->remote_identify))) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out_fail;
+ }
+
+ if (mr_sas_port->remote_identify.device_type == SAS_PHY_UNUSED) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out_fail;
+ }
+
+ mr_sas_port->hba_port = hba_port;
+ mpi3mr_sas_port_sanity_check(mrioc, mr_sas_node,
+ mr_sas_port->remote_identify.sas_address, hba_port);
+
+ for (i = 0; i < mr_sas_node->num_phys; i++) {
+ if ((mr_sas_node->phy[i].remote_identify.sas_address !=
+ mr_sas_port->remote_identify.sas_address) ||
+ (mr_sas_node->phy[i].hba_port != hba_port))
+ continue;
+ list_add_tail(&mr_sas_node->phy[i].port_siblings,
+ &mr_sas_port->phy_list);
+ mr_sas_port->num_phys++;
+ mr_sas_port->phy_mask |= (1 << i);
+ }
+
+ if (!mr_sas_port->num_phys) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out_fail;
+ }
+
+ mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1;
+
+ if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) {
+ tgtdev = mpi3mr_get_tgtdev_by_addr(mrioc,
+ mr_sas_port->remote_identify.sas_address,
+ mr_sas_port->hba_port);
+
+ if (!tgtdev) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out_fail;
+ }
+ tgtdev->dev_spec.sas_sata_inf.pend_sas_rphy_add = 1;
+ }
+
+ if (!mr_sas_node->parent_dev) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out_fail;
+ }
+
+ port = sas_port_alloc_num(mr_sas_node->parent_dev);
+ if ((sas_port_add(port))) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out_fail;
+ }
+
+ list_for_each_entry(mr_sas_phy, &mr_sas_port->phy_list,
+ port_siblings) {
+ if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
+ dev_info(&port->dev,
+ "add: handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
+ handle, (unsigned long long)
+ mr_sas_port->remote_identify.sas_address,
+ mr_sas_phy->phy_id);
+ sas_port_add_phy(port, mr_sas_phy->phy);
+ mr_sas_phy->phy_belongs_to_port = 1;
+ mr_sas_phy->hba_port = hba_port;
+ }
+
+ mr_sas_port->port = port;
+ if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) {
+ rphy = sas_end_device_alloc(port);
+ tgtdev->dev_spec.sas_sata_inf.rphy = rphy;
+ } else {
+ rphy = sas_expander_alloc(port,
+ mr_sas_port->remote_identify.device_type);
+ }
+ rphy->identify = mr_sas_port->remote_identify;
+
+ if (mrioc->current_event)
+ mrioc->current_event->pending_at_sml = 1;
+
+ if ((sas_rphy_add(rphy))) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ }
+ if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) {
+ tgtdev->dev_spec.sas_sata_inf.pend_sas_rphy_add = 0;
+ tgtdev->dev_spec.sas_sata_inf.sas_transport_attached = 1;
+ mpi3mr_tgtdev_put(tgtdev);
+ }
+
+ dev_info(&rphy->dev,
+ "%s: added: handle(0x%04x), sas_address(0x%016llx)\n",
+ __func__, handle, (unsigned long long)
+ mr_sas_port->remote_identify.sas_address);
+
+ mr_sas_port->rphy = rphy;
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ list_add_tail(&mr_sas_port->port_list, &mr_sas_node->sas_port_list);
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+ if (mrioc->current_event) {
+ mrioc->current_event->pending_at_sml = 0;
+ if (mrioc->current_event->discard)
+ mpi3mr_print_device_event_notice(mrioc, true);
+ }
+
+ /* fill in report manufacture */
+ if (mr_sas_port->remote_identify.device_type ==
+ SAS_EDGE_EXPANDER_DEVICE ||
+ mr_sas_port->remote_identify.device_type ==
+ SAS_FANOUT_EXPANDER_DEVICE)
+ mpi3mr_report_manufacture(mrioc,
+ mr_sas_port->remote_identify.sas_address,
+ rphy_to_expander_device(rphy), hba_port->port_id);
+
+ return mr_sas_port;
+
+ out_fail:
+ list_for_each_entry_safe(mr_sas_phy, next, &mr_sas_port->phy_list,
+ port_siblings)
+ list_del(&mr_sas_phy->port_siblings);
+ kfree(mr_sas_port);
+ return NULL;
+}
+
+/**
+ * mpi3mr_sas_port_remove - remove port from the list
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of attached device
+ * @sas_address_parent: SAS address of parent expander or host
+ * @hba_port: HBA port entry
+ *
+ * Removing object and freeing associated memory from the
+ * sas_port_list.
+ *
+ * Return: None
+ */
+static void mpi3mr_sas_port_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
+ u64 sas_address_parent, struct mpi3mr_hba_port *hba_port)
+{
+ int i;
+ unsigned long flags;
+ struct mpi3mr_sas_port *mr_sas_port, *next;
+ struct mpi3mr_sas_node *mr_sas_node;
+ u8 found = 0;
+ struct mpi3mr_sas_phy *mr_sas_phy, *next_phy;
+ struct mpi3mr_hba_port *srch_port, *hba_port_next = NULL;
+
+ if (!hba_port)
+ return;
+
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ mr_sas_node = __mpi3mr_sas_node_find_by_sas_address(mrioc,
+ sas_address_parent, hba_port);
+ if (!mr_sas_node) {
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+ return;
+ }
+ list_for_each_entry_safe(mr_sas_port, next, &mr_sas_node->sas_port_list,
+ port_list) {
+ if (mr_sas_port->remote_identify.sas_address != sas_address)
+ continue;
+ if (mr_sas_port->hba_port != hba_port)
+ continue;
+ found = 1;
+ list_del(&mr_sas_port->port_list);
+ goto out;
+ }
+
+ out:
+ if (!found) {
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+ return;
+ }
+
+ if (mr_sas_node->host_node) {
+ list_for_each_entry_safe(srch_port, hba_port_next,
+ &mrioc->hba_port_table_list, list) {
+ if (srch_port != hba_port)
+ continue;
+ ioc_info(mrioc,
+ "removing hba_port entry: %p port: %d from hba_port list\n",
+ srch_port, srch_port->port_id);
+ list_del(&hba_port->list);
+ kfree(hba_port);
+ break;
+ }
+ }
+
+ for (i = 0; i < mr_sas_node->num_phys; i++) {
+ if (mr_sas_node->phy[i].remote_identify.sas_address ==
+ sas_address)
+ memset(&mr_sas_node->phy[i].remote_identify, 0,
+ sizeof(struct sas_identify));
+ }
+
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+ if (mrioc->current_event)
+ mrioc->current_event->pending_at_sml = 1;
+
+ list_for_each_entry_safe(mr_sas_phy, next_phy,
+ &mr_sas_port->phy_list, port_siblings) {
+ if ((!mrioc->stop_drv_processing) &&
+ (mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
+ dev_info(&mr_sas_port->port->dev,
+ "remove: sas_address(0x%016llx), phy(%d)\n",
+ (unsigned long long)
+ mr_sas_port->remote_identify.sas_address,
+ mr_sas_phy->phy_id);
+ mr_sas_phy->phy_belongs_to_port = 0;
+ if (!mrioc->stop_drv_processing)
+ sas_port_delete_phy(mr_sas_port->port,
+ mr_sas_phy->phy);
+ list_del(&mr_sas_phy->port_siblings);
+ }
+ if (!mrioc->stop_drv_processing)
+ sas_port_delete(mr_sas_port->port);
+ ioc_info(mrioc, "%s: removed sas_address(0x%016llx)\n",
+ __func__, (unsigned long long)sas_address);
+
+ if (mrioc->current_event) {
+ mrioc->current_event->pending_at_sml = 0;
+ if (mrioc->current_event->discard)
+ mpi3mr_print_device_event_notice(mrioc, false);
+ }
+
+ kfree(mr_sas_port);
+}
+
+/**
+ * struct host_port - host port details
+ * @sas_address: SAS Address of the attached device
+ * @phy_mask: phy mask of host port
+ * @handle: Device Handle of attached device
+ * @iounit_port_id: port ID
+ * @used: host port is already matched with sas port from sas_port_list
+ * @lowest_phy: lowest phy ID of host port
+ */
+struct host_port {
+ u64 sas_address;
+ u32 phy_mask;
+ u16 handle;
+ u8 iounit_port_id;
+ u8 used;
+ u8 lowest_phy;
+};
+
+/**
+ * mpi3mr_update_mr_sas_port - update sas port objects during reset
+ * @mrioc: Adapter instance reference
+ * @h_port: host_port object
+ * @mr_sas_port: sas_port objects which needs to be updated
+ *
+ * Update the port ID of sas port object. Also add the phys if new phys got
+ * added to current sas port and remove the phys if some phys are moved
+ * out of the current sas port.
+ *
+ * Return: Nothing.
+ */
+static void
+mpi3mr_update_mr_sas_port(struct mpi3mr_ioc *mrioc, struct host_port *h_port,
+ struct mpi3mr_sas_port *mr_sas_port)
+{
+ struct mpi3mr_sas_phy *mr_sas_phy;
+ u32 phy_mask_xor;
+ u64 phys_to_be_added, phys_to_be_removed;
+ int i;
+
+ h_port->used = 1;
+ mr_sas_port->marked_responding = 1;
+
+ dev_info(&mr_sas_port->port->dev,
+ "sas_address(0x%016llx), old: port_id %d phy_mask 0x%x, new: port_id %d phy_mask:0x%x\n",
+ mr_sas_port->remote_identify.sas_address,
+ mr_sas_port->hba_port->port_id, mr_sas_port->phy_mask,
+ h_port->iounit_port_id, h_port->phy_mask);
+
+ mr_sas_port->hba_port->port_id = h_port->iounit_port_id;
+ mr_sas_port->hba_port->flags &= ~MPI3MR_HBA_PORT_FLAG_DIRTY;
+
+ /* Get the newly added phys bit map & removed phys bit map */
+ phy_mask_xor = mr_sas_port->phy_mask ^ h_port->phy_mask;
+ phys_to_be_added = h_port->phy_mask & phy_mask_xor;
+ phys_to_be_removed = mr_sas_port->phy_mask & phy_mask_xor;
+
+ /*
+ * Register these new phys to current mr_sas_port's port.
+ * if these phys are previously registered with another port
+ * then delete these phys from that port first.
+ */
+ for_each_set_bit(i, (ulong *) &phys_to_be_added, BITS_PER_TYPE(u32)) {
+ mr_sas_phy = &mrioc->sas_hba.phy[i];
+ if (mr_sas_phy->phy_belongs_to_port)
+ mpi3mr_del_phy_from_an_existing_port(mrioc,
+ &mrioc->sas_hba, mr_sas_phy);
+ mpi3mr_add_phy_to_an_existing_port(mrioc,
+ &mrioc->sas_hba, mr_sas_phy,
+ mr_sas_port->remote_identify.sas_address,
+ mr_sas_port->hba_port);
+ }
+
+ /* Delete the phys which are not part of current mr_sas_port's port. */
+ for_each_set_bit(i, (ulong *) &phys_to_be_removed, BITS_PER_TYPE(u32)) {
+ mr_sas_phy = &mrioc->sas_hba.phy[i];
+ if (mr_sas_phy->phy_belongs_to_port)
+ mpi3mr_del_phy_from_an_existing_port(mrioc,
+ &mrioc->sas_hba, mr_sas_phy);
+ }
+}
+
+/**
+ * mpi3mr_refresh_sas_ports - update host's sas ports during reset
+ * @mrioc: Adapter instance reference
+ *
+ * Update the host's sas ports during reset by checking whether
+ * sas ports are still intact or not. Add/remove phys if any hba
+ * phys are (moved in)/(moved out) of sas port. Also update
+ * io_unit_port if it got changed during reset.
+ *
+ * Return: Nothing.
+ */
+void
+mpi3mr_refresh_sas_ports(struct mpi3mr_ioc *mrioc)
+{
+ struct host_port h_port[32];
+ int i, j, found, host_port_count = 0, port_idx;
+ u16 sz, attached_handle, ioc_status;
+ struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
+ struct mpi3_device_page0 dev_pg0;
+ struct mpi3_device0_sas_sata_format *sasinf;
+ struct mpi3mr_sas_port *mr_sas_port;
+
+ sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
+ (mrioc->sas_hba.num_phys *
+ sizeof(struct mpi3_sas_io_unit0_phy_data));
+ sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
+ if (!sas_io_unit_pg0)
+ return;
+ if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out;
+ }
+
+ /* Create a new expander port table */
+ for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
+ attached_handle = le16_to_cpu(
+ sas_io_unit_pg0->phy_data[i].attached_dev_handle);
+ if (!attached_handle)
+ continue;
+ found = 0;
+ for (j = 0; j < host_port_count; j++) {
+ if (h_port[j].handle == attached_handle) {
+ h_port[j].phy_mask |= (1 << i);
+ found = 1;
+ break;
+ }
+ }
+ if (found)
+ continue;
+ if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
+ sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
+ attached_handle))) {
+ dprint_reset(mrioc,
+ "failed to read dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n",
+ attached_handle, __FILE__, __LINE__, __func__);
+ continue;
+ }
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ dprint_reset(mrioc,
+ "ioc_status(0x%x) while reading dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n",
+ ioc_status, attached_handle,
+ __FILE__, __LINE__, __func__);
+ continue;
+ }
+ sasinf = &dev_pg0.device_specific.sas_sata_format;
+
+ port_idx = host_port_count;
+ h_port[port_idx].sas_address = le64_to_cpu(sasinf->sas_address);
+ h_port[port_idx].handle = attached_handle;
+ h_port[port_idx].phy_mask = (1 << i);
+ h_port[port_idx].iounit_port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
+ h_port[port_idx].lowest_phy = sasinf->phy_num;
+ h_port[port_idx].used = 0;
+ host_port_count++;
+ }
+
+ if (!host_port_count)
+ goto out;
+
+ if (mrioc->logging_level & MPI3_DEBUG_RESET) {
+ ioc_info(mrioc, "Host port details before reset\n");
+ list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
+ port_list) {
+ ioc_info(mrioc,
+ "port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%x), lowest phy id:%d\n",
+ mr_sas_port->hba_port->port_id,
+ mr_sas_port->remote_identify.sas_address,
+ mr_sas_port->phy_mask, mr_sas_port->lowest_phy);
+ }
+ mr_sas_port = NULL;
+ ioc_info(mrioc, "Host port details after reset\n");
+ for (i = 0; i < host_port_count; i++) {
+ ioc_info(mrioc,
+ "port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%x), lowest phy id:%d\n",
+ h_port[i].iounit_port_id, h_port[i].sas_address,
+ h_port[i].phy_mask, h_port[i].lowest_phy);
+ }
+ }
+
+ /* mark all host sas port entries as dirty */
+ list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
+ port_list) {
+ mr_sas_port->marked_responding = 0;
+ mr_sas_port->hba_port->flags |= MPI3MR_HBA_PORT_FLAG_DIRTY;
+ }
+
+ /* First check for matching lowest phy */
+ for (i = 0; i < host_port_count; i++) {
+ mr_sas_port = NULL;
+ list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
+ port_list) {
+ if (mr_sas_port->marked_responding)
+ continue;
+ if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
+ continue;
+ if (h_port[i].lowest_phy == mr_sas_port->lowest_phy) {
+ mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
+ break;
+ }
+ }
+ }
+
+ /* In case if lowest phy is got enabled or disabled during reset */
+ for (i = 0; i < host_port_count; i++) {
+ if (h_port[i].used)
+ continue;
+ mr_sas_port = NULL;
+ list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
+ port_list) {
+ if (mr_sas_port->marked_responding)
+ continue;
+ if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
+ continue;
+ if (h_port[i].phy_mask & mr_sas_port->phy_mask) {
+ mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
+ break;
+ }
+ }
+ }
+
+ /* In case if expander cable is removed & connected to another HBA port during reset */
+ for (i = 0; i < host_port_count; i++) {
+ if (h_port[i].used)
+ continue;
+ mr_sas_port = NULL;
+ list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
+ port_list) {
+ if (mr_sas_port->marked_responding)
+ continue;
+ if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
+ continue;
+ mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
+ break;
+ }
+ }
+out:
+ kfree(sas_io_unit_pg0);
+}
+
+/**
+ * mpi3mr_refresh_expanders - Refresh expander device exposure
+ * @mrioc: Adapter instance reference
+ *
+ * This is executed post controller reset to identify any
+ * missing expander devices during reset and remove from the upper layers
+ * or expose any newly detected expander device to the upper layers.
+ *
+ * Return: Nothing.
+ */
+void
+mpi3mr_refresh_expanders(struct mpi3mr_ioc *mrioc)
+{
+ struct mpi3mr_sas_node *sas_expander, *sas_expander_next;
+ struct mpi3_sas_expander_page0 expander_pg0;
+ u16 ioc_status, handle;
+ u64 sas_address;
+ int i;
+ unsigned long flags;
+ struct mpi3mr_hba_port *hba_port;
+
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
+ sas_expander->non_responding = 1;
+ }
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+ sas_expander = NULL;
+
+ handle = 0xffff;
+
+ /* Search for responding expander devices and add them if they are newly got added */
+ while (true) {
+ if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0,
+ sizeof(struct mpi3_sas_expander_page0),
+ MPI3_SAS_EXPAND_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
+ dprint_reset(mrioc,
+ "failed to read exp pg0 for handle(0x%04x) at %s:%d/%s()!\n",
+ handle, __FILE__, __LINE__, __func__);
+ break;
+ }
+
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ dprint_reset(mrioc,
+ "ioc_status(0x%x) while reading exp pg0 for handle:(0x%04x), %s:%d/%s()!\n",
+ ioc_status, handle, __FILE__, __LINE__, __func__);
+ break;
+ }
+
+ handle = le16_to_cpu(expander_pg0.dev_handle);
+ sas_address = le64_to_cpu(expander_pg0.sas_address);
+ hba_port = mpi3mr_get_hba_port_by_id(mrioc, expander_pg0.io_unit_port);
+
+ if (!hba_port) {
+ mpi3mr_sas_host_refresh(mrioc);
+ mpi3mr_expander_add(mrioc, handle);
+ continue;
+ }
+
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ sas_expander =
+ mpi3mr_expander_find_by_sas_address(mrioc,
+ sas_address, hba_port);
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+ if (!sas_expander) {
+ mpi3mr_sas_host_refresh(mrioc);
+ mpi3mr_expander_add(mrioc, handle);
+ continue;
+ }
+
+ sas_expander->non_responding = 0;
+ if (sas_expander->handle == handle)
+ continue;
+
+ sas_expander->handle = handle;
+ for (i = 0 ; i < sas_expander->num_phys ; i++)
+ sas_expander->phy[i].handle = handle;
+ }
+
+ /*
+ * Delete non responding expander devices and the corresponding
+ * hba_port if the non responding expander device's parent device
+ * is a host node.
+ */
+ sas_expander = NULL;
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ list_for_each_entry_safe_reverse(sas_expander, sas_expander_next,
+ &mrioc->sas_expander_list, list) {
+ if (sas_expander->non_responding) {
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+ mpi3mr_expander_node_remove(mrioc, sas_expander);
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ }
+ }
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+}
+
+/**
+ * mpi3mr_expander_node_add - insert an expander to the list.
+ * @mrioc: Adapter instance reference
+ * @sas_expander: Expander sas node
+ * Context: This function will acquire sas_node_lock.
+ *
+ * Adding new object to the ioc->sas_expander_list.
+ *
+ * Return: None.
+ */
+static void mpi3mr_expander_node_add(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_sas_node *sas_expander)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ list_add_tail(&sas_expander->list, &mrioc->sas_expander_list);
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+}
+
+/**
+ * mpi3mr_expander_add - Create expander object
+ * @mrioc: Adapter instance reference
+ * @handle: Expander firmware device handle
+ *
+ * This function creating expander object, stored in
+ * sas_expander_list and expose it to the SAS transport
+ * layer.
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+int mpi3mr_expander_add(struct mpi3mr_ioc *mrioc, u16 handle)
+{
+ struct mpi3mr_sas_node *sas_expander;
+ struct mpi3mr_enclosure_node *enclosure_dev;
+ struct mpi3_sas_expander_page0 expander_pg0;
+ struct mpi3_sas_expander_page1 expander_pg1;
+ u16 ioc_status, parent_handle, temp_handle;
+ u64 sas_address, sas_address_parent = 0;
+ int i;
+ unsigned long flags;
+ u8 port_id, link_rate;
+ struct mpi3mr_sas_port *mr_sas_port = NULL;
+ struct mpi3mr_hba_port *hba_port;
+ u32 phynum_handle;
+ int rc = 0;
+
+ if (!handle)
+ return -1;
+
+ if (mrioc->reset_in_progress)
+ return -1;
+
+ if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0,
+ sizeof(expander_pg0), MPI3_SAS_EXPAND_PGAD_FORM_HANDLE, handle))) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ return -1;
+ }
+
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ return -1;
+ }
+
+ parent_handle = le16_to_cpu(expander_pg0.parent_dev_handle);
+ if (mpi3mr_get_sas_address(mrioc, parent_handle, &sas_address_parent)
+ != 0) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ return -1;
+ }
+
+ port_id = expander_pg0.io_unit_port;
+ hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id);
+ if (!hba_port) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ return -1;
+ }
+
+ if (sas_address_parent != mrioc->sas_hba.sas_address) {
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ sas_expander =
+ mpi3mr_expander_find_by_sas_address(mrioc,
+ sas_address_parent, hba_port);
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+ if (!sas_expander) {
+ rc = mpi3mr_expander_add(mrioc, parent_handle);
+ if (rc != 0)
+ return rc;
+ } else {
+ /*
+ * When there is a parent expander present, update it's
+ * phys where child expander is connected with the link
+ * speed, attached dev handle and sas address.
+ */
+ for (i = 0 ; i < sas_expander->num_phys ; i++) {
+ phynum_handle =
+ (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
+ parent_handle;
+ if (mpi3mr_cfg_get_sas_exp_pg1(mrioc,
+ &ioc_status, &expander_pg1,
+ sizeof(expander_pg1),
+ MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
+ phynum_handle)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ rc = -1;
+ return rc;
+ }
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ rc = -1;
+ return rc;
+ }
+ temp_handle = le16_to_cpu(
+ expander_pg1.attached_dev_handle);
+ if (temp_handle != handle)
+ continue;
+ link_rate = (expander_pg1.negotiated_link_rate &
+ MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
+ MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
+ mpi3mr_update_links(mrioc, sas_address_parent,
+ handle, i, link_rate, hba_port);
+ }
+ }
+ }
+
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ sas_address = le64_to_cpu(expander_pg0.sas_address);
+ sas_expander = mpi3mr_expander_find_by_sas_address(mrioc,
+ sas_address, hba_port);
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+ if (sas_expander)
+ return 0;
+
+ sas_expander = kzalloc(sizeof(struct mpi3mr_sas_node),
+ GFP_KERNEL);
+ if (!sas_expander)
+ return -1;
+
+ sas_expander->handle = handle;
+ sas_expander->num_phys = expander_pg0.num_phys;
+ sas_expander->sas_address_parent = sas_address_parent;
+ sas_expander->sas_address = sas_address;
+ sas_expander->hba_port = hba_port;
+
+ ioc_info(mrioc,
+ "expander_add: handle(0x%04x), parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
+ handle, parent_handle, (unsigned long long)
+ sas_expander->sas_address, sas_expander->num_phys);
+
+ if (!sas_expander->num_phys) {
+ rc = -1;
+ goto out_fail;
+ }
+ sas_expander->phy = kcalloc(sas_expander->num_phys,
+ sizeof(struct mpi3mr_sas_phy), GFP_KERNEL);
+ if (!sas_expander->phy) {
+ rc = -1;
+ goto out_fail;
+ }
+
+ INIT_LIST_HEAD(&sas_expander->sas_port_list);
+ mr_sas_port = mpi3mr_sas_port_add(mrioc, handle, sas_address_parent,
+ sas_expander->hba_port);
+ if (!mr_sas_port) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ rc = -1;
+ goto out_fail;
+ }
+ sas_expander->parent_dev = &mr_sas_port->rphy->dev;
+ sas_expander->rphy = mr_sas_port->rphy;
+
+ for (i = 0 ; i < sas_expander->num_phys ; i++) {
+ phynum_handle = (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
+ handle;
+ if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, &ioc_status,
+ &expander_pg1, sizeof(expander_pg1),
+ MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
+ phynum_handle)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ rc = -1;
+ goto out_fail;
+ }
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ rc = -1;
+ goto out_fail;
+ }
+
+ sas_expander->phy[i].handle = handle;
+ sas_expander->phy[i].phy_id = i;
+ sas_expander->phy[i].hba_port = hba_port;
+
+ if ((mpi3mr_add_expander_phy(mrioc, &sas_expander->phy[i],
+ expander_pg1, sas_expander->parent_dev))) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ rc = -1;
+ goto out_fail;
+ }
+ }
+
+ if (sas_expander->enclosure_handle) {
+ enclosure_dev =
+ mpi3mr_enclosure_find_by_handle(mrioc,
+ sas_expander->enclosure_handle);
+ if (enclosure_dev)
+ sas_expander->enclosure_logical_id = le64_to_cpu(
+ enclosure_dev->pg0.enclosure_logical_id);
+ }
+
+ mpi3mr_expander_node_add(mrioc, sas_expander);
+ return 0;
+
+out_fail:
+
+ if (mr_sas_port)
+ mpi3mr_sas_port_remove(mrioc,
+ sas_expander->sas_address,
+ sas_address_parent, sas_expander->hba_port);
+ kfree(sas_expander->phy);
+ kfree(sas_expander);
+ return rc;
+}
+
+/**
+ * mpi3mr_expander_node_remove - recursive removal of expander.
+ * @mrioc: Adapter instance reference
+ * @sas_expander: Expander device object
+ *
+ * Removes expander object and freeing associated memory from
+ * the sas_expander_list and removes the same from SAS TL, if
+ * one of the attached device is an expander then it recursively
+ * removes the expander device too.
+ *
+ * Return nothing.
+ */
+void mpi3mr_expander_node_remove(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_sas_node *sas_expander)
+{
+ struct mpi3mr_sas_port *mr_sas_port, *next;
+ unsigned long flags;
+ u8 port_id;
+
+ /* remove sibling ports attached to this expander */
+ list_for_each_entry_safe(mr_sas_port, next,
+ &sas_expander->sas_port_list, port_list) {
+ if (mrioc->reset_in_progress)
+ return;
+ if (mr_sas_port->remote_identify.device_type ==
+ SAS_END_DEVICE)
+ mpi3mr_remove_device_by_sas_address(mrioc,
+ mr_sas_port->remote_identify.sas_address,
+ mr_sas_port->hba_port);
+ else if (mr_sas_port->remote_identify.device_type ==
+ SAS_EDGE_EXPANDER_DEVICE ||
+ mr_sas_port->remote_identify.device_type ==
+ SAS_FANOUT_EXPANDER_DEVICE)
+ mpi3mr_expander_remove(mrioc,
+ mr_sas_port->remote_identify.sas_address,
+ mr_sas_port->hba_port);
+ }
+
+ port_id = sas_expander->hba_port->port_id;
+ mpi3mr_sas_port_remove(mrioc, sas_expander->sas_address,
+ sas_expander->sas_address_parent, sas_expander->hba_port);
+
+ ioc_info(mrioc, "expander_remove: handle(0x%04x), sas_addr(0x%016llx), port:%d\n",
+ sas_expander->handle, (unsigned long long)
+ sas_expander->sas_address, port_id);
+
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ list_del(&sas_expander->list);
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+ kfree(sas_expander->phy);
+ kfree(sas_expander);
+}
+
+/**
+ * mpi3mr_expander_remove - Remove expander object
+ * @mrioc: Adapter instance reference
+ * @sas_address: Remove expander sas_address
+ * @hba_port: HBA port reference
+ *
+ * This function remove expander object, stored in
+ * mrioc->sas_expander_list and removes it from the SAS TL by
+ * calling mpi3mr_expander_node_remove().
+ *
+ * Return: None
+ */
+void mpi3mr_expander_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
+ struct mpi3mr_hba_port *hba_port)
+{
+ struct mpi3mr_sas_node *sas_expander;
+ unsigned long flags;
+
+ if (mrioc->reset_in_progress)
+ return;
+
+ if (!hba_port)
+ return;
+
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ sas_expander = mpi3mr_expander_find_by_sas_address(mrioc, sas_address,
+ hba_port);
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+ if (sas_expander)
+ mpi3mr_expander_node_remove(mrioc, sas_expander);
+
+}
+
+/**
+ * mpi3mr_get_sas_negotiated_logical_linkrate - get linkrate
+ * @mrioc: Adapter instance reference
+ * @tgtdev: Target device
+ *
+ * This function identifies whether the target device is
+ * attached directly or through expander and issues sas phy
+ * page0 or expander phy page1 and gets the link rate, if there
+ * is any failure in reading the pages then this returns link
+ * rate of 1.5.
+ *
+ * Return: logical link rate.
+ */
+static u8 mpi3mr_get_sas_negotiated_logical_linkrate(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_tgt_dev *tgtdev)
+{
+ u8 link_rate = MPI3_SAS_NEG_LINK_RATE_1_5, phy_number;
+ struct mpi3_sas_expander_page1 expander_pg1;
+ struct mpi3_sas_phy_page0 phy_pg0;
+ u32 phynum_handle;
+ u16 ioc_status;
+
+ phy_number = tgtdev->dev_spec.sas_sata_inf.phy_id;
+ if (!(tgtdev->devpg0_flag & MPI3_DEVICE0_FLAGS_ATT_METHOD_DIR_ATTACHED)) {
+ phynum_handle = ((phy_number<<MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT)
+ | tgtdev->parent_handle);
+ if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, &ioc_status,
+ &expander_pg1, sizeof(expander_pg1),
+ MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
+ phynum_handle)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out;
+ }
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out;
+ }
+ link_rate = (expander_pg1.negotiated_link_rate &
+ MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
+ MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
+ goto out;
+ }
+ if (mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
+ sizeof(struct mpi3_sas_phy_page0),
+ MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy_number)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out;
+ }
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ goto out;
+ }
+ link_rate = (phy_pg0.negotiated_link_rate &
+ MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
+ MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
+out:
+ return link_rate;
+}
+
+/**
+ * mpi3mr_report_tgtdev_to_sas_transport - expose dev to SAS TL
+ * @mrioc: Adapter instance reference
+ * @tgtdev: Target device
+ *
+ * This function exposes the target device after
+ * preparing host_phy, setting up link rate etc.
+ *
+ * Return: 0 on success, non-zero for failure.
+ */
+int mpi3mr_report_tgtdev_to_sas_transport(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_tgt_dev *tgtdev)
+{
+ int retval = 0;
+ u8 link_rate, parent_phy_number;
+ u64 sas_address_parent, sas_address;
+ struct mpi3mr_hba_port *hba_port;
+ u8 port_id;
+
+ if ((tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA) ||
+ !mrioc->sas_transport_enabled)
+ return -1;
+
+ sas_address = tgtdev->dev_spec.sas_sata_inf.sas_address;
+ if (!mrioc->sas_hba.num_phys)
+ mpi3mr_sas_host_add(mrioc);
+ else
+ mpi3mr_sas_host_refresh(mrioc);
+
+ if (mpi3mr_get_sas_address(mrioc, tgtdev->parent_handle,
+ &sas_address_parent) != 0) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ return -1;
+ }
+ tgtdev->dev_spec.sas_sata_inf.sas_address_parent = sas_address_parent;
+
+ parent_phy_number = tgtdev->dev_spec.sas_sata_inf.phy_id;
+ port_id = tgtdev->io_unit_port;
+
+ hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id);
+ if (!hba_port) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ return -1;
+ }
+ tgtdev->dev_spec.sas_sata_inf.hba_port = hba_port;
+
+ link_rate = mpi3mr_get_sas_negotiated_logical_linkrate(mrioc, tgtdev);
+
+ mpi3mr_update_links(mrioc, sas_address_parent, tgtdev->dev_handle,
+ parent_phy_number, link_rate, hba_port);
+
+ tgtdev->host_exposed = 1;
+ if (!mpi3mr_sas_port_add(mrioc, tgtdev->dev_handle,
+ sas_address_parent, hba_port)) {
+ retval = -1;
+ } else if ((!tgtdev->starget) && (!mrioc->is_driver_loading)) {
+ mpi3mr_sas_port_remove(mrioc, sas_address,
+ sas_address_parent, hba_port);
+ retval = -1;
+ }
+ if (retval) {
+ tgtdev->dev_spec.sas_sata_inf.hba_port = NULL;
+ tgtdev->host_exposed = 0;
+ }
+ return retval;
+}
+
+/**
+ * mpi3mr_remove_tgtdev_from_sas_transport - remove from SAS TL
+ * @mrioc: Adapter instance reference
+ * @tgtdev: Target device
+ *
+ * This function removes the target device
+ *
+ * Return: None.
+ */
+void mpi3mr_remove_tgtdev_from_sas_transport(struct mpi3mr_ioc *mrioc,
+ struct mpi3mr_tgt_dev *tgtdev)
+{
+ u64 sas_address_parent, sas_address;
+ struct mpi3mr_hba_port *hba_port;
+
+ if ((tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA) ||
+ !mrioc->sas_transport_enabled)
+ return;
+
+ hba_port = tgtdev->dev_spec.sas_sata_inf.hba_port;
+ sas_address = tgtdev->dev_spec.sas_sata_inf.sas_address;
+ sas_address_parent = tgtdev->dev_spec.sas_sata_inf.sas_address_parent;
+ mpi3mr_sas_port_remove(mrioc, sas_address, sas_address_parent,
+ hba_port);
+ tgtdev->host_exposed = 0;
+ tgtdev->dev_spec.sas_sata_inf.hba_port = NULL;
+}
+
+/**
+ * mpi3mr_get_port_id_by_sas_phy - Get port ID of the given phy
+ * @phy: SAS transport layer phy object
+ *
+ * Return: Port number for valid ID else 0xFFFF
+ */
+static inline u8 mpi3mr_get_port_id_by_sas_phy(struct sas_phy *phy)
+{
+ u8 port_id = 0xFF;
+ struct mpi3mr_hba_port *hba_port = phy->hostdata;
+
+ if (hba_port)
+ port_id = hba_port->port_id;
+
+ return port_id;
+}
+
+/**
+ * mpi3mr_get_port_id_by_rphy - Get Port number from SAS rphy
+ *
+ * @mrioc: Adapter instance reference
+ * @rphy: SAS transport layer remote phy object
+ *
+ * Retrieves HBA port number in which the device pointed by the
+ * rphy object is attached with.
+ *
+ * Return: Valid port number on success else OxFFFF.
+ */
+static u8 mpi3mr_get_port_id_by_rphy(struct mpi3mr_ioc *mrioc, struct sas_rphy *rphy)
+{
+ struct mpi3mr_sas_node *sas_expander;
+ struct mpi3mr_tgt_dev *tgtdev;
+ unsigned long flags;
+ u8 port_id = 0xFF;
+
+ if (!rphy)
+ return port_id;
+
+ if (rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE ||
+ rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE) {
+ spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+ list_for_each_entry(sas_expander, &mrioc->sas_expander_list,
+ list) {
+ if (sas_expander->rphy == rphy) {
+ port_id = sas_expander->hba_port->port_id;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+ } else if (rphy->identify.device_type == SAS_END_DEVICE) {
+ spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
+
+ tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+ rphy->identify.sas_address, rphy);
+ if (tgtdev && tgtdev->dev_spec.sas_sata_inf.hba_port) {
+ port_id =
+ tgtdev->dev_spec.sas_sata_inf.hba_port->port_id;
+ mpi3mr_tgtdev_put(tgtdev);
+ }
+ spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
+ }
+ return port_id;
+}
+
+static inline struct mpi3mr_ioc *phy_to_mrioc(struct sas_phy *phy)
+{
+ struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
+
+ return shost_priv(shost);
+}
+
+static inline struct mpi3mr_ioc *rphy_to_mrioc(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;
+};
+
+
+/**
+ * mpi3mr_get_expander_phy_error_log - return expander counters:
+ * @mrioc: Adapter instance reference
+ * @phy: The SAS transport layer phy object
+ *
+ * Return: 0 for success, non-zero for failure.
+ *
+ */
+static int mpi3mr_get_expander_phy_error_log(struct mpi3mr_ioc *mrioc,
+ struct sas_phy *phy)
+{
+ struct mpi3_smp_passthrough_request mpi_request;
+ struct mpi3_smp_passthrough_reply mpi_reply;
+ struct phy_error_log_request *phy_error_log_request;
+ struct phy_error_log_reply *phy_error_log_reply;
+ int rc;
+ void *psge;
+ void *data_out = NULL;
+ dma_addr_t data_out_dma, data_in_dma;
+ u32 data_out_sz, data_in_sz, sz;
+ u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
+ u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
+ u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
+ u16 ioc_status;
+
+ if (mrioc->reset_in_progress) {
+ ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
+ return -EFAULT;
+ }
+
+ data_out_sz = sizeof(struct phy_error_log_request);
+ data_in_sz = sizeof(struct phy_error_log_reply);
+ sz = data_out_sz + data_in_sz;
+ data_out = dma_alloc_coherent(&mrioc->pdev->dev, sz, &data_out_dma,
+ GFP_KERNEL);
+ if (!data_out) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ data_in_dma = data_out_dma + data_out_sz;
+ phy_error_log_reply = data_out + data_out_sz;
+
+ 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, request_sz);
+ memset(&mpi_reply, 0, reply_sz);
+ mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
+ mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
+ mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_sas_phy(phy);
+ mpi_request.sas_address = cpu_to_le64(phy->identify.sas_address);
+
+ psge = &mpi_request.request_sge;
+ mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
+
+ psge = &mpi_request.response_sge;
+ mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
+
+ dprint_transport_info(mrioc,
+ "sending phy error log SMP request to sas_address(0x%016llx), phy_id(%d)\n",
+ (unsigned long long)phy->identify.sas_address, phy->number);
+
+ if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
+ &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status))
+ goto out;
+
+ dprint_transport_info(mrioc,
+ "phy error log SMP request completed with ioc_status(0x%04x)\n",
+ ioc_status);
+
+ if (ioc_status == MPI3_IOCSTATUS_SUCCESS) {
+ dprint_transport_info(mrioc,
+ "phy error log - reply data transfer size(%d)\n",
+ le16_to_cpu(mpi_reply.response_data_length));
+
+ if (le16_to_cpu(mpi_reply.response_data_length) !=
+ sizeof(struct phy_error_log_reply))
+ goto out;
+
+ dprint_transport_info(mrioc,
+ "phy error log - function_result(%d)\n",
+ phy_error_log_reply->function_result);
+
+ phy->invalid_dword_count =
+ be32_to_cpu(phy_error_log_reply->invalid_dword);
+ phy->running_disparity_error_count =
+ be32_to_cpu(phy_error_log_reply->running_disparity_error);
+ phy->loss_of_dword_sync_count =
+ be32_to_cpu(phy_error_log_reply->loss_of_dword_sync);
+ phy->phy_reset_problem_count =
+ be32_to_cpu(phy_error_log_reply->phy_reset_problem);
+ rc = 0;
+ }
+
+out:
+ if (data_out)
+ dma_free_coherent(&mrioc->pdev->dev, sz, data_out,
+ data_out_dma);
+
+ return rc;
+}
+
+/**
+ * mpi3mr_transport_get_linkerrors - return phy error counters
+ * @phy: The SAS transport layer phy object
+ *
+ * This function retrieves the phy error log information of the
+ * HBA or expander for which the phy belongs to
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int mpi3mr_transport_get_linkerrors(struct sas_phy *phy)
+{
+ struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
+ struct mpi3_sas_phy_page1 phy_pg1;
+ int rc = 0;
+ u16 ioc_status;
+
+ rc = mpi3mr_parent_present(mrioc, phy);
+ if (rc)
+ return rc;
+
+ if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
+ return mpi3mr_get_expander_phy_error_log(mrioc, phy);
+
+ memset(&phy_pg1, 0, sizeof(struct mpi3_sas_phy_page1));
+ /* get hba phy error logs */
+ if ((mpi3mr_cfg_get_sas_phy_pg1(mrioc, &ioc_status, &phy_pg1,
+ sizeof(struct mpi3_sas_phy_page1),
+ MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy->number))) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ return -ENXIO;
+ }
+
+ if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ return -ENXIO;
+ }
+ phy->invalid_dword_count = le32_to_cpu(phy_pg1.invalid_dword_count);
+ phy->running_disparity_error_count =
+ le32_to_cpu(phy_pg1.running_disparity_error_count);
+ phy->loss_of_dword_sync_count =
+ le32_to_cpu(phy_pg1.loss_dword_synch_count);
+ phy->phy_reset_problem_count =
+ le32_to_cpu(phy_pg1.phy_reset_problem_count);
+ return 0;
+}
+
+/**
+ * mpi3mr_transport_get_enclosure_identifier - Get Enclosure ID
+ * @rphy: The SAS transport layer remote phy object
+ * @identifier: Enclosure identifier to be returned
+ *
+ * Returns the enclosure id for the device pointed by the remote
+ * phy object.
+ *
+ * Return: 0 on success or -ENXIO
+ */
+static int
+mpi3mr_transport_get_enclosure_identifier(struct sas_rphy *rphy,
+ u64 *identifier)
+{
+ struct mpi3mr_ioc *mrioc = rphy_to_mrioc(rphy);
+ struct mpi3mr_tgt_dev *tgtdev = NULL;
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
+ tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+ rphy->identify.sas_address, rphy);
+ if (tgtdev) {
+ *identifier =
+ tgtdev->enclosure_logical_id;
+ rc = 0;
+ mpi3mr_tgtdev_put(tgtdev);
+ } else {
+ *identifier = 0;
+ rc = -ENXIO;
+ }
+ spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
+
+ return rc;
+}
+
+/**
+ * mpi3mr_transport_get_bay_identifier - Get bay ID
+ * @rphy: The SAS transport layer remote phy object
+ *
+ * Returns the slot id for the device pointed by the remote phy
+ * object.
+ *
+ * Return: Valid slot ID on success or -ENXIO
+ */
+static int
+mpi3mr_transport_get_bay_identifier(struct sas_rphy *rphy)
+{
+ struct mpi3mr_ioc *mrioc = rphy_to_mrioc(rphy);
+ struct mpi3mr_tgt_dev *tgtdev = NULL;
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
+ tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+ rphy->identify.sas_address, rphy);
+ if (tgtdev) {
+ rc = tgtdev->slot;
+ mpi3mr_tgtdev_put(tgtdev);
+ } else
+ rc = -ENXIO;
+ spin_unlock_irqrestore(&mrioc->tgtdev_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)
+
+/**
+ * mpi3mr_expander_phy_control - expander phy control
+ * @mrioc: Adapter instance reference
+ * @phy: The SAS transport layer phy object
+ * @phy_operation: The phy operation to be executed
+ *
+ * Issues SMP passthru phy control request to execute a specific
+ * phy operation for a given expander device.
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpi3mr_expander_phy_control(struct mpi3mr_ioc *mrioc,
+ struct sas_phy *phy, u8 phy_operation)
+{
+ struct mpi3_smp_passthrough_request mpi_request;
+ struct mpi3_smp_passthrough_reply mpi_reply;
+ struct phy_control_request *phy_control_request;
+ struct phy_control_reply *phy_control_reply;
+ int rc;
+ void *psge;
+ void *data_out = NULL;
+ dma_addr_t data_out_dma;
+ dma_addr_t data_in_dma;
+ size_t data_in_sz;
+ size_t data_out_sz;
+ u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
+ u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
+ u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
+ u16 ioc_status;
+ u16 sz;
+
+ if (mrioc->reset_in_progress) {
+ ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
+ return -EFAULT;
+ }
+
+ data_out_sz = sizeof(struct phy_control_request);
+ data_in_sz = sizeof(struct phy_control_reply);
+ sz = data_out_sz + data_in_sz;
+ data_out = dma_alloc_coherent(&mrioc->pdev->dev, sz, &data_out_dma,
+ GFP_KERNEL);
+ if (!data_out) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ data_in_dma = data_out_dma + data_out_sz;
+ phy_control_reply = data_out + data_out_sz;
+
+ 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, request_sz);
+ memset(&mpi_reply, 0, reply_sz);
+ mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
+ mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
+ mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_sas_phy(phy);
+ mpi_request.sas_address = cpu_to_le64(phy->identify.sas_address);
+
+ psge = &mpi_request.request_sge;
+ mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
+
+ psge = &mpi_request.response_sge;
+ mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
+
+ dprint_transport_info(mrioc,
+ "sending phy control SMP request to sas_address(0x%016llx), phy_id(%d) opcode(%d)\n",
+ (unsigned long long)phy->identify.sas_address, phy->number,
+ phy_operation);
+
+ if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
+ &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status))
+ goto out;
+
+ dprint_transport_info(mrioc,
+ "phy control SMP request completed with ioc_status(0x%04x)\n",
+ ioc_status);
+
+ if (ioc_status == MPI3_IOCSTATUS_SUCCESS) {
+ dprint_transport_info(mrioc,
+ "phy control - reply data transfer size(%d)\n",
+ le16_to_cpu(mpi_reply.response_data_length));
+
+ if (le16_to_cpu(mpi_reply.response_data_length) !=
+ sizeof(struct phy_control_reply))
+ goto out;
+ dprint_transport_info(mrioc,
+ "phy control - function_result(%d)\n",
+ phy_control_reply->function_result);
+ rc = 0;
+ }
+ out:
+ if (data_out)
+ dma_free_coherent(&mrioc->pdev->dev, sz, data_out,
+ data_out_dma);
+
+ return rc;
+}
+
+/**
+ * mpi3mr_transport_phy_reset - Reset a given phy
+ * @phy: The SAS transport layer phy object
+ * @hard_reset: Flag to indicate the type of reset
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpi3mr_transport_phy_reset(struct sas_phy *phy, int hard_reset)
+{
+ struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
+ struct mpi3_iounit_control_request mpi_request;
+ struct mpi3_iounit_control_reply mpi_reply;
+ u16 request_sz = sizeof(struct mpi3_iounit_control_request);
+ u16 reply_sz = sizeof(struct mpi3_iounit_control_reply);
+ int rc = 0;
+ u16 ioc_status;
+
+ rc = mpi3mr_parent_present(mrioc, phy);
+ if (rc)
+ return rc;
+
+ /* handle expander phys */
+ if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
+ return mpi3mr_expander_phy_control(mrioc, phy,
+ (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET :
+ SMP_PHY_CONTROL_LINK_RESET);
+
+ /* handle hba phys */
+ memset(&mpi_request, 0, request_sz);
+ mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
+ mpi_request.function = MPI3_FUNCTION_IO_UNIT_CONTROL;
+ mpi_request.operation = MPI3_CTRL_OP_SAS_PHY_CONTROL;
+ mpi_request.param8[MPI3_CTRL_OP_SAS_PHY_CONTROL_PARAM8_ACTION_INDEX] =
+ (hard_reset ? MPI3_CTRL_ACTION_HARD_RESET :
+ MPI3_CTRL_ACTION_LINK_RESET);
+ mpi_request.param8[MPI3_CTRL_OP_SAS_PHY_CONTROL_PARAM8_PHY_INDEX] =
+ phy->number;
+
+ dprint_transport_info(mrioc,
+ "sending phy reset request to sas_address(0x%016llx), phy_id(%d) hard_reset(%d)\n",
+ (unsigned long long)phy->identify.sas_address, phy->number,
+ hard_reset);
+
+ if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
+ &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status)) {
+ rc = -EAGAIN;
+ goto out;
+ }
+
+ dprint_transport_info(mrioc,
+ "phy reset request completed with ioc_status(0x%04x)\n",
+ ioc_status);
+out:
+ return rc;
+}
+
+/**
+ * mpi3mr_transport_phy_enable - enable/disable phys
+ * @phy: The SAS transport layer phy object
+ * @enable: flag to enable/disable, enable phy when true
+ *
+ * This function enables/disables a given by executing required
+ * configuration page changes or expander phy control command
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpi3mr_transport_phy_enable(struct sas_phy *phy, int enable)
+{
+ struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
+ struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
+ struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1 = NULL;
+ u16 sz;
+ int rc = 0;
+ int i, discovery_active;
+
+ rc = mpi3mr_parent_present(mrioc, phy);
+ if (rc)
+ return rc;
+
+ /* handle expander phys */
+ if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
+ return mpi3mr_expander_phy_control(mrioc, phy,
+ (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET :
+ SMP_PHY_CONTROL_DISABLE);
+
+ /* handle hba phys */
+ sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
+ (mrioc->sas_hba.num_phys *
+ sizeof(struct mpi3_sas_io_unit0_phy_data));
+ sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
+ if (!sas_io_unit_pg0) {
+ rc = -ENOMEM;
+ goto out;
+ }
+ if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ rc = -ENXIO;
+ goto out;
+ }
+
+ /* unable to enable/disable phys when discovery is active */
+ for (i = 0, discovery_active = 0; i < mrioc->sas_hba.num_phys ; i++) {
+ if (sas_io_unit_pg0->phy_data[i].port_flags &
+ MPI3_SASIOUNIT0_PORTFLAGS_DISC_IN_PROGRESS) {
+ ioc_err(mrioc,
+ "discovery is active on port = %d, phy = %d\n"
+ "\tunable to enable/disable phys, try again later!\n",
+ sas_io_unit_pg0->phy_data[i].io_unit_port, i);
+ discovery_active = 1;
+ }
+ }
+
+ if (discovery_active) {
+ rc = -EAGAIN;
+ goto out;
+ }
+
+ if ((sas_io_unit_pg0->phy_data[phy->number].phy_flags &
+ (MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
+ MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ rc = -ENXIO;
+ goto out;
+ }
+
+ /* read sas_iounit page 1 */
+ sz = offsetof(struct mpi3_sas_io_unit_page1, phy_data) +
+ (mrioc->sas_hba.num_phys *
+ sizeof(struct mpi3_sas_io_unit1_phy_data));
+ sas_io_unit_pg1 = kzalloc(sz, GFP_KERNEL);
+ if (!sas_io_unit_pg1) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ if (mpi3mr_cfg_get_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ rc = -ENXIO;
+ goto out;
+ }
+
+ if (enable)
+ sas_io_unit_pg1->phy_data[phy->number].phy_flags
+ &= ~MPI3_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
+ else
+ sas_io_unit_pg1->phy_data[phy->number].phy_flags
+ |= MPI3_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
+
+ mpi3mr_cfg_set_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz);
+
+ /* link reset */
+ if (enable)
+ mpi3mr_transport_phy_reset(phy, 0);
+
+ out:
+ kfree(sas_io_unit_pg1);
+ kfree(sas_io_unit_pg0);
+ return rc;
+}
+
+/**
+ * mpi3mr_transport_phy_speed - set phy min/max speed
+ * @phy: The SAS transport later phy object
+ * @rates: Rates defined as in sas_phy_linkrates
+ *
+ * This function sets the link rates given in the rates
+ * argument to the given phy by executing required configuration
+ * page changes or expander phy control command
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpi3mr_transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates)
+{
+ struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
+ struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1 = NULL;
+ struct mpi3_sas_phy_page0 phy_pg0;
+ u16 sz, ioc_status;
+ int rc = 0;
+
+ rc = mpi3mr_parent_present(mrioc, phy);
+ if (rc)
+ return rc;
+
+ 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 != mrioc->sas_hba.sas_address) {
+ phy->minimum_linkrate = rates->minimum_linkrate;
+ phy->maximum_linkrate = rates->maximum_linkrate;
+ return mpi3mr_expander_phy_control(mrioc, phy,
+ SMP_PHY_CONTROL_LINK_RESET);
+ }
+
+ /* handle hba phys */
+ sz = offsetof(struct mpi3_sas_io_unit_page1, phy_data) +
+ (mrioc->sas_hba.num_phys *
+ sizeof(struct mpi3_sas_io_unit1_phy_data));
+ sas_io_unit_pg1 = kzalloc(sz, GFP_KERNEL);
+ if (!sas_io_unit_pg1) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ if (mpi3mr_cfg_get_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ rc = -ENXIO;
+ goto out;
+ }
+
+ sas_io_unit_pg1->phy_data[phy->number].max_min_link_rate =
+ (rates->minimum_linkrate + (rates->maximum_linkrate << 4));
+
+ if (mpi3mr_cfg_set_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
+ ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+ __FILE__, __LINE__, __func__);
+ rc = -ENXIO;
+ goto out;
+ }
+
+ /* link reset */
+ mpi3mr_transport_phy_reset(phy, 0);
+
+ /* read phy page 0, then update the rates in the sas transport phy */
+ if (!mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
+ sizeof(struct mpi3_sas_phy_page0),
+ MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy->number) &&
+ (ioc_status == MPI3_IOCSTATUS_SUCCESS)) {
+ phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
+ phy_pg0.programmed_link_rate &
+ MPI3_SAS_PRATE_MIN_RATE_MASK);
+ phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
+ phy_pg0.programmed_link_rate >> 4);
+ phy->negotiated_linkrate =
+ mpi3mr_convert_phy_link_rate(
+ (phy_pg0.negotiated_link_rate &
+ MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK)
+ >> MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
+ }
+
+out:
+ kfree(sas_io_unit_pg1);
+ return rc;
+}
+
+/**
+ * mpi3mr_map_smp_buffer - map BSG dma buffer
+ * @dev: Generic device reference
+ * @buf: BSG buffer pointer
+ * @dma_addr: Physical address holder
+ * @dma_len: Mapped DMA buffer length.
+ * @p: Virtual address holder
+ *
+ * This function maps the DMAable buffer
+ *
+ * Return: 0 on success, non-zero on failure
+ */
+static int
+mpi3mr_map_smp_buffer(struct device *dev, struct bsg_buffer *buf,
+ dma_addr_t *dma_addr, size_t *dma_len, void **p)
+{
+ /* Check if the request is split across multiple segments */
+ if (buf->sg_cnt > 1) {
+ *p = dma_alloc_coherent(dev, buf->payload_len, dma_addr,
+ GFP_KERNEL);
+ if (!*p)
+ return -ENOMEM;
+ *dma_len = buf->payload_len;
+ } else {
+ if (!dma_map_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL))
+ return -ENOMEM;
+ *dma_addr = sg_dma_address(buf->sg_list);
+ *dma_len = sg_dma_len(buf->sg_list);
+ *p = NULL;
+ }
+
+ return 0;
+}
+
+/**
+ * mpi3mr_unmap_smp_buffer - unmap BSG dma buffer
+ * @dev: Generic device reference
+ * @buf: BSG buffer pointer
+ * @dma_addr: Physical address to be unmapped
+ * @p: Virtual address
+ *
+ * This function unmaps the DMAable buffer
+ */
+static void
+mpi3mr_unmap_smp_buffer(struct device *dev, struct bsg_buffer *buf,
+ dma_addr_t dma_addr, void *p)
+{
+ if (p)
+ dma_free_coherent(dev, buf->payload_len, p, dma_addr);
+ else
+ dma_unmap_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL);
+}
+
+/**
+ * mpi3mr_transport_smp_handler - handler for smp passthru
+ * @job: BSG job reference
+ * @shost: SCSI host object reference
+ * @rphy: SAS transport rphy object pointing the expander
+ *
+ * This is used primarily by smp utils for sending the SMP
+ * commands to the expanders attached to the controller
+ */
+static void
+mpi3mr_transport_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
+ struct sas_rphy *rphy)
+{
+ struct mpi3mr_ioc *mrioc = shost_priv(shost);
+ struct mpi3_smp_passthrough_request mpi_request;
+ struct mpi3_smp_passthrough_reply mpi_reply;
+ int rc;
+ void *psge;
+ dma_addr_t dma_addr_in;
+ dma_addr_t dma_addr_out;
+ void *addr_in = NULL;
+ void *addr_out = NULL;
+ size_t dma_len_in;
+ size_t dma_len_out;
+ unsigned int reslen = 0;
+ u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
+ u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
+ u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
+ u16 ioc_status;
+
+ if (mrioc->reset_in_progress) {
+ ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
+ rc = -EFAULT;
+ goto out;
+ }
+
+ rc = mpi3mr_map_smp_buffer(&mrioc->pdev->dev, &job->request_payload,
+ &dma_addr_out, &dma_len_out, &addr_out);
+ if (rc)
+ goto out;
+
+ if (addr_out)
+ sg_copy_to_buffer(job->request_payload.sg_list,
+ job->request_payload.sg_cnt, addr_out,
+ job->request_payload.payload_len);
+
+ rc = mpi3mr_map_smp_buffer(&mrioc->pdev->dev, &job->reply_payload,
+ &dma_addr_in, &dma_len_in, &addr_in);
+ if (rc)
+ goto unmap_out;
+
+ memset(&mpi_request, 0, request_sz);
+ memset(&mpi_reply, 0, reply_sz);
+ mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
+ mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
+ mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_rphy(mrioc, rphy);
+ mpi_request.sas_address = ((rphy) ?
+ cpu_to_le64(rphy->identify.sas_address) :
+ cpu_to_le64(mrioc->sas_hba.sas_address));
+ psge = &mpi_request.request_sge;
+ mpi3mr_add_sg_single(psge, sgl_flags, dma_len_out - 4, dma_addr_out);
+
+ psge = &mpi_request.response_sge;
+ mpi3mr_add_sg_single(psge, sgl_flags, dma_len_in - 4, dma_addr_in);
+
+ dprint_transport_info(mrioc, "sending SMP request\n");
+
+ rc = mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
+ &mpi_reply, reply_sz,
+ MPI3MR_INTADMCMD_TIMEOUT, &ioc_status);
+ if (rc)
+ goto unmap_in;
+
+ dprint_transport_info(mrioc,
+ "SMP request completed with ioc_status(0x%04x)\n", ioc_status);
+
+ dprint_transport_info(mrioc,
+ "SMP request - reply data transfer size(%d)\n",
+ le16_to_cpu(mpi_reply.response_data_length));
+
+ memcpy(job->reply, &mpi_reply, reply_sz);
+ job->reply_len = reply_sz;
+ reslen = le16_to_cpu(mpi_reply.response_data_length);
+
+ if (addr_in)
+ sg_copy_from_buffer(job->reply_payload.sg_list,
+ job->reply_payload.sg_cnt, addr_in,
+ job->reply_payload.payload_len);
+
+ rc = 0;
+unmap_in:
+ mpi3mr_unmap_smp_buffer(&mrioc->pdev->dev, &job->reply_payload,
+ dma_addr_in, addr_in);
+unmap_out:
+ mpi3mr_unmap_smp_buffer(&mrioc->pdev->dev, &job->request_payload,
+ dma_addr_out, addr_out);
+out:
+ bsg_job_done(job, rc, reslen);
+}
+
+struct sas_function_template mpi3mr_transport_functions = {
+ .get_linkerrors = mpi3mr_transport_get_linkerrors,
+ .get_enclosure_identifier = mpi3mr_transport_get_enclosure_identifier,
+ .get_bay_identifier = mpi3mr_transport_get_bay_identifier,
+ .phy_reset = mpi3mr_transport_phy_reset,
+ .phy_enable = mpi3mr_transport_phy_enable,
+ .set_phy_speed = mpi3mr_transport_phy_speed,
+ .smp_handler = mpi3mr_transport_smp_handler,
+};
+
+struct scsi_transport_template *mpi3mr_transport_template;