From 95099d4622f8cb224d94e314c7a8e0df60b13f87 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 08:38:01 +0000
Subject: [PATCH] enable docker ppp
---
kernel/drivers/scsi/smartpqi/smartpqi_sas_transport.c | 267 +++++++++++++++++++++++++++++++++++++++++++++++++----
1 files changed, 245 insertions(+), 22 deletions(-)
diff --git a/kernel/drivers/scsi/smartpqi/smartpqi_sas_transport.c b/kernel/drivers/scsi/smartpqi/smartpqi_sas_transport.c
index 01dfb97..999870e 100644
--- a/kernel/drivers/scsi/smartpqi/smartpqi_sas_transport.c
+++ b/kernel/drivers/scsi/smartpqi/smartpqi_sas_transport.c
@@ -1,25 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* driver for Microsemi PQI-based storage controllers
- * Copyright (c) 2016-2017 Microsemi Corporation
+ * Copyright (c) 2019-2020 Microchip Technology Inc. and its subsidiaries
+ * Copyright (c) 2016-2018 Microsemi Corporation
* Copyright (c) 2016 PMC-Sierra, Inc.
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more details.
- *
- * Questions/Comments/Bugfixes to esc.storagedev@microsemi.com
+ * Questions/Comments/Bugfixes to storagedev@microchip.com
*
*/
#include <linux/kernel.h>
+#include <linux/bsg-lib.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_transport_sas.h>
+#include <asm/unaligned.h>
#include "smartpqi.h"
static struct pqi_sas_phy *pqi_alloc_sas_phy(struct pqi_sas_port *pqi_sas_port)
@@ -97,14 +92,32 @@
identify = &rphy->identify;
identify->sas_address = pqi_sas_port->sas_address;
- identify->initiator_port_protocols = SAS_PROTOCOL_STP;
- identify->target_port_protocols = SAS_PROTOCOL_STP;
+
+ if (pqi_sas_port->device &&
+ pqi_sas_port->device->is_expander_smp_device) {
+ identify->initiator_port_protocols = SAS_PROTOCOL_SMP;
+ identify->target_port_protocols = SAS_PROTOCOL_SMP;
+ } else {
+ identify->initiator_port_protocols = SAS_PROTOCOL_STP;
+ identify->target_port_protocols = SAS_PROTOCOL_STP;
+ }
return sas_rphy_add(rphy);
}
+static struct sas_rphy *pqi_sas_rphy_alloc(struct pqi_sas_port *pqi_sas_port)
+{
+ if (pqi_sas_port->device &&
+ pqi_sas_port->device->is_expander_smp_device)
+ return sas_expander_alloc(pqi_sas_port->port,
+ SAS_FANOUT_EXPANDER_DEVICE);
+
+ return sas_end_device_alloc(pqi_sas_port->port);
+}
+
static struct pqi_sas_port *pqi_alloc_sas_port(
- struct pqi_sas_node *pqi_sas_node, u64 sas_address)
+ struct pqi_sas_node *pqi_sas_node, u64 sas_address,
+ struct pqi_scsi_dev *device)
{
int rc;
struct pqi_sas_port *pqi_sas_port;
@@ -127,6 +140,7 @@
pqi_sas_port->port = port;
pqi_sas_port->sas_address = sas_address;
+ pqi_sas_port->device = device;
list_add_tail(&pqi_sas_port->port_list_entry,
&pqi_sas_node->port_list_head);
@@ -146,7 +160,7 @@
struct pqi_sas_phy *next;
list_for_each_entry_safe(pqi_sas_phy, next,
- &pqi_sas_port->phy_list_head, phy_list_entry)
+ &pqi_sas_port->phy_list_head, phy_list_entry)
pqi_free_sas_phy(pqi_sas_phy);
sas_port_delete(pqi_sas_port->port);
@@ -176,7 +190,7 @@
return;
list_for_each_entry_safe(pqi_sas_port, next,
- &pqi_sas_node->port_list_head, port_list_entry)
+ &pqi_sas_node->port_list_head, port_list_entry)
pqi_free_sas_port(pqi_sas_port);
kfree(pqi_sas_node);
@@ -206,13 +220,14 @@
struct pqi_sas_port *pqi_sas_port;
struct pqi_sas_phy *pqi_sas_phy;
- parent_dev = &shost->shost_gendev;
+ parent_dev = &shost->shost_dev;
pqi_sas_node = pqi_alloc_sas_node(parent_dev);
if (!pqi_sas_node)
return -ENOMEM;
- pqi_sas_port = pqi_alloc_sas_port(pqi_sas_node, ctrl_info->sas_address);
+ pqi_sas_port = pqi_alloc_sas_port(pqi_sas_node,
+ ctrl_info->sas_address, NULL);
if (!pqi_sas_port) {
rc = -ENODEV;
goto free_sas_node;
@@ -254,11 +269,12 @@
struct pqi_sas_port *pqi_sas_port;
struct sas_rphy *rphy;
- pqi_sas_port = pqi_alloc_sas_port(pqi_sas_node, device->sas_address);
+ pqi_sas_port = pqi_alloc_sas_port(pqi_sas_node,
+ device->sas_address, device);
if (!pqi_sas_port)
return -ENOMEM;
- rphy = sas_end_device_alloc(pqi_sas_port->port);
+ rphy = pqi_sas_rphy_alloc(pqi_sas_port);
if (!rphy) {
rc = -ENODEV;
goto free_sas_port;
@@ -296,12 +312,107 @@
static int pqi_sas_get_enclosure_identifier(struct sas_rphy *rphy,
u64 *identifier)
{
- return 0;
+ int rc;
+ unsigned long flags;
+ struct Scsi_Host *shost;
+ struct pqi_ctrl_info *ctrl_info;
+ struct pqi_scsi_dev *found_device;
+ struct pqi_scsi_dev *device;
+
+ if (!rphy)
+ return -ENODEV;
+
+ shost = rphy_to_shost(rphy);
+ ctrl_info = shost_to_hba(shost);
+ spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
+ found_device = pqi_find_device_by_sas_rphy(ctrl_info, rphy);
+
+ if (!found_device) {
+ rc = -ENODEV;
+ goto out;
+ }
+
+ if (found_device->devtype == TYPE_ENCLOSURE) {
+ *identifier = get_unaligned_be64(&found_device->wwid);
+ rc = 0;
+ goto out;
+ }
+
+ if (found_device->box_index == 0xff ||
+ found_device->phys_box_on_bus == 0 ||
+ found_device->bay == 0xff) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ list_for_each_entry(device, &ctrl_info->scsi_device_list,
+ scsi_device_list_entry) {
+ if (device->devtype == TYPE_ENCLOSURE &&
+ device->box_index == found_device->box_index &&
+ device->phys_box_on_bus ==
+ found_device->phys_box_on_bus &&
+ memcmp(device->phys_connector,
+ found_device->phys_connector, 2) == 0) {
+ *identifier =
+ get_unaligned_be64(&device->wwid);
+ rc = 0;
+ goto out;
+ }
+ }
+
+ if (found_device->phy_connected_dev_type != SA_DEVICE_TYPE_CONTROLLER) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ list_for_each_entry(device, &ctrl_info->scsi_device_list,
+ scsi_device_list_entry) {
+ if (device->devtype == TYPE_ENCLOSURE &&
+ CISS_GET_DRIVE_NUMBER(device->scsi3addr) ==
+ PQI_VSEP_CISS_BTL) {
+ *identifier = get_unaligned_be64(&device->wwid);
+ rc = 0;
+ goto out;
+ }
+ }
+
+ rc = -EINVAL;
+out:
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
+
+ return rc;
}
static int pqi_sas_get_bay_identifier(struct sas_rphy *rphy)
{
- return -ENXIO;
+ int rc;
+ unsigned long flags;
+ struct pqi_ctrl_info *ctrl_info;
+ struct pqi_scsi_dev *device;
+ struct Scsi_Host *shost;
+
+ if (!rphy)
+ return -ENODEV;
+
+ shost = rphy_to_shost(rphy);
+ ctrl_info = shost_to_hba(shost);
+ spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
+ device = pqi_find_device_by_sas_rphy(ctrl_info, rphy);
+
+ if (!device) {
+ rc = -ENODEV;
+ goto out;
+ }
+
+ if (device->bay == 0xff)
+ rc = -EINVAL;
+ else
+ rc = device->bay;
+
+out:
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
+
+ return rc;
}
static int pqi_sas_phy_reset(struct sas_phy *phy, int hard_reset)
@@ -329,6 +440,117 @@
return -EINVAL;
}
+#define CSMI_IOCTL_TIMEOUT 60
+#define SMP_CRC_FIELD_LENGTH 4
+
+static struct bmic_csmi_smp_passthru_buffer *
+pqi_build_csmi_smp_passthru_buffer(struct sas_rphy *rphy,
+ struct bsg_job *job)
+{
+ struct bmic_csmi_smp_passthru_buffer *smp_buf;
+ struct bmic_csmi_ioctl_header *ioctl_header;
+ struct bmic_csmi_smp_passthru *parameters;
+ u32 req_size;
+ u32 resp_size;
+
+ smp_buf = kzalloc(sizeof(*smp_buf), GFP_KERNEL);
+ if (!smp_buf)
+ return NULL;
+
+ req_size = job->request_payload.payload_len;
+ resp_size = job->reply_payload.payload_len;
+
+ ioctl_header = &smp_buf->ioctl_header;
+ put_unaligned_le32(sizeof(smp_buf->ioctl_header),
+ &ioctl_header->header_length);
+ put_unaligned_le32(CSMI_IOCTL_TIMEOUT, &ioctl_header->timeout);
+ put_unaligned_le32(CSMI_CC_SAS_SMP_PASSTHRU,
+ &ioctl_header->control_code);
+ put_unaligned_le32(sizeof(smp_buf->parameters), &ioctl_header->length);
+
+ parameters = &smp_buf->parameters;
+ parameters->phy_identifier = rphy->identify.phy_identifier;
+ parameters->port_identifier = 0;
+ parameters->connection_rate = 0;
+ put_unaligned_be64(rphy->identify.sas_address,
+ ¶meters->destination_sas_address);
+
+ if (req_size > SMP_CRC_FIELD_LENGTH)
+ req_size -= SMP_CRC_FIELD_LENGTH;
+
+ put_unaligned_le32(req_size, ¶meters->request_length);
+ put_unaligned_le32(resp_size, ¶meters->response_length);
+
+ sg_copy_to_buffer(job->request_payload.sg_list,
+ job->reply_payload.sg_cnt, ¶meters->request,
+ req_size);
+
+ return smp_buf;
+}
+
+static unsigned int pqi_build_sas_smp_handler_reply(
+ struct bmic_csmi_smp_passthru_buffer *smp_buf, struct bsg_job *job,
+ struct pqi_raid_error_info *error_info)
+{
+ sg_copy_from_buffer(job->reply_payload.sg_list,
+ job->reply_payload.sg_cnt, &smp_buf->parameters.response,
+ le32_to_cpu(smp_buf->parameters.response_length));
+
+ job->reply_len = le16_to_cpu(error_info->sense_data_length);
+ memcpy(job->reply, error_info->data,
+ le16_to_cpu(error_info->sense_data_length));
+
+ return job->reply_payload.payload_len -
+ get_unaligned_le32(&error_info->data_in_transferred);
+}
+
+void pqi_sas_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
+ struct sas_rphy *rphy)
+{
+ int rc;
+ struct pqi_ctrl_info *ctrl_info;
+ struct bmic_csmi_smp_passthru_buffer *smp_buf;
+ struct pqi_raid_error_info error_info;
+ unsigned int reslen = 0;
+
+ ctrl_info = shost_to_hba(shost);
+
+ if (job->reply_payload.payload_len == 0) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ if (!rphy) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (rphy->identify.device_type != SAS_FANOUT_EXPANDER_DEVICE) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (job->request_payload.sg_cnt > 1 || job->reply_payload.sg_cnt > 1) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ smp_buf = pqi_build_csmi_smp_passthru_buffer(rphy, job);
+ if (!smp_buf) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ rc = pqi_csmi_smp_passthru(ctrl_info, smp_buf, sizeof(*smp_buf),
+ &error_info);
+ if (rc)
+ goto out;
+
+ reslen = pqi_build_sas_smp_handler_reply(smp_buf, job, &error_info);
+out:
+ bsg_job_done(job, rc, reslen);
+ pqi_ctrl_unbusy(ctrl_info);
+}
struct sas_function_template pqi_sas_transport_functions = {
.get_linkerrors = pqi_sas_get_linkerrors,
.get_enclosure_identifier = pqi_sas_get_enclosure_identifier,
@@ -338,4 +560,5 @@
.phy_setup = pqi_sas_phy_setup,
.phy_release = pqi_sas_phy_release,
.set_phy_speed = pqi_sas_phy_speed,
+ .smp_handler = pqi_sas_smp_handler,
};
--
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