#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <uapi/scsi/scsi_bsg_mpi3mr.h>
+#include <scsi/scsi_transport_sas.h>
#include "mpi/mpi30_transport.h"
#include "mpi/mpi30_cnfg.h"
atomic_t pend_large_data_sz;
};
+/* HBA port flags */
+#define MPI3MR_HBA_PORT_FLAG_DIRTY 0x01
+
+/**
+ * struct mpi3mr_hba_port - HBA's port information
+ * @port_id: Port number
+ * @flags: HBA port flags
+ */
+struct mpi3mr_hba_port {
+ struct list_head list;
+ u8 port_id;
+ u8 flags;
+};
+
+/**
+ * struct mpi3mr_sas_port - Internal SAS port information
+ * @port_list: List of ports belonging to a SAS node
+ * @num_phys: Number of phys associated with port
+ * @hba_port: HBA port entry
+ * @remote_identify: Attached device identification
+ * @rphy: SAS transport layer rphy object
+ * @port: SAS transport layer port object
+ * @phy_list: mpi3mr_sas_phy objects belonging to this port
+ */
+struct mpi3mr_sas_port {
+ struct list_head port_list;
+ u8 num_phys;
+ struct mpi3mr_hba_port *hba_port;
+ struct sas_identify remote_identify;
+ struct sas_rphy *rphy;
+ struct sas_port *port;
+ struct list_head phy_list;
+};
+
+/**
+ * struct mpi3mr_sas_phy - Internal SAS Phy information
+ * @port_siblings: List of phys belonging to a port
+ * @identify: Phy identification
+ * @remote_identify: Attached device identification
+ * @phy: SAS transport layer Phy object
+ * @phy_id: Unique phy id within a port
+ * @handle: Firmware device handle for this phy
+ * @attached_handle: Firmware device handle for attached device
+ * @phy_belongs_to_port: Flag to indicate phy belongs to port
+ @hba_port: HBA port entry
+ */
+struct mpi3mr_sas_phy {
+ struct list_head port_siblings;
+ struct sas_identify identify;
+ struct sas_identify remote_identify;
+ struct sas_phy *phy;
+ u8 phy_id;
+ u16 handle;
+ u16 attached_handle;
+ u8 phy_belongs_to_port;
+ struct mpi3mr_hba_port *hba_port;
+};
+
+/**
+ * struct mpi3mr_sas_node - SAS host/expander information
+ * @list: List of sas nodes in a controller
+ * @parent_dev: Parent device class
+ * @num_phys: Number phys belonging to sas_node
+ * @sas_address: SAS address of sas_node
+ * @handle: Firmware device handle for this sas_host/expander
+ * @sas_address_parent: SAS address of parent expander or host
+ * @enclosure_handle: Firmware handle of enclosure of this node
+ * @device_info: Capabilities of this sas_host/expander
+ * @non_responding: used to refresh the expander devices during reset
+ * @host_node: Flag to indicate this is a host_node
+ * @hba_port: HBA port entry
+ * @phy: A list of phys that make up this sas_host/expander
+ * @sas_port_list: List of internal ports of this node
+ * @rphy: sas_rphy object of this expander node
+ */
+struct mpi3mr_sas_node {
+ struct list_head list;
+ struct device *parent_dev;
+ u8 num_phys;
+ u64 sas_address;
+ u16 handle;
+ u64 sas_address_parent;
+ u16 enclosure_handle;
+ u64 enclosure_logical_id;
+ u8 non_responding;
+ u8 host_node;
+ struct mpi3mr_hba_port *hba_port;
+ struct mpi3mr_sas_phy *phy;
+ struct list_head sas_port_list;
+ struct sas_rphy *rphy;
+};
+
/**
* struct mpi3mr_enclosure_node - enclosure information
* @list: List of enclosures
--- /dev/null
+// 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_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--;
+ 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++;
+ 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_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;
+ 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;
+}
projects / platform / kernel / linux-starfive.git / commitdiff