提交 532df6f3 编写于 作者: L Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (277 commits)
  [SCSI] isci: fix checkpatch errors
  isci: Device reset should request sas_phy_reset(phy, true)
  isci: pare back error messsages
  isci: cleanup silicon revision detection
  isci: merge scu_unsolicited_frame.h into unsolicited_frame_control.h
  isci: merge sata.[ch] into request.c
  isci: kill 'get/set' macros
  isci: retire scic_sds_ and scic_ prefixes
  isci: unify isci_host and scic_sds_controller
  isci: unify isci_remote_device and scic_sds_remote_device
  isci: unify isci_port and scic_sds_port
  isci: fix scic_sds_remote_device_terminate_requests
  isci: unify isci_phy and scic_sds_phy
  isci: unify isci_request and scic_sds_request
  isci: rename / clean up scic_sds_stp_request
  isci: preallocate requests
  isci: combine request flags
  isci: unify can_queue tracking on the tci_pool, uplevel tag assignment
  isci: Terminate dev requests on FIS err bit rx in NCQ
  isci: fix frame received locking
  ...
......@@ -830,6 +830,19 @@ config SCSI_GDTH
To compile this driver as a module, choose M here: the
module will be called gdth.
config SCSI_ISCI
tristate "Intel(R) C600 Series Chipset SAS Controller"
depends on PCI && SCSI
depends on X86
# (temporary): known alpha quality driver
depends on EXPERIMENTAL
select SCSI_SAS_LIBSAS
---help---
This driver supports the 6Gb/s SAS capabilities of the storage
control unit found in the Intel(R) C600 series chipset.
The experimental tag will be removed after the driver exits alpha
config SCSI_GENERIC_NCR5380
tristate "Generic NCR5380/53c400 SCSI PIO support"
depends on ISA && SCSI
......
......@@ -73,6 +73,7 @@ obj-$(CONFIG_SCSI_AACRAID) += aacraid/
obj-$(CONFIG_SCSI_AIC7XXX_OLD) += aic7xxx_old.o
obj-$(CONFIG_SCSI_AIC94XX) += aic94xx/
obj-$(CONFIG_SCSI_PM8001) += pm8001/
obj-$(CONFIG_SCSI_ISCI) += isci/
obj-$(CONFIG_SCSI_IPS) += ips.o
obj-$(CONFIG_SCSI_FD_MCS) += fd_mcs.o
obj-$(CONFIG_SCSI_FUTURE_DOMAIN)+= fdomain.o
......
......@@ -1037,6 +1037,7 @@ static void complete_scsi_command(struct CommandList *cp)
unsigned char sense_key;
unsigned char asc; /* additional sense code */
unsigned char ascq; /* additional sense code qualifier */
unsigned long sense_data_size;
ei = cp->err_info;
cmd = (struct scsi_cmnd *) cp->scsi_cmd;
......@@ -1051,10 +1052,14 @@ static void complete_scsi_command(struct CommandList *cp)
cmd->result |= ei->ScsiStatus;
/* copy the sense data whether we need to or not. */
memcpy(cmd->sense_buffer, ei->SenseInfo,
ei->SenseLen > SCSI_SENSE_BUFFERSIZE ?
SCSI_SENSE_BUFFERSIZE :
ei->SenseLen);
if (SCSI_SENSE_BUFFERSIZE < sizeof(ei->SenseInfo))
sense_data_size = SCSI_SENSE_BUFFERSIZE;
else
sense_data_size = sizeof(ei->SenseInfo);
if (ei->SenseLen < sense_data_size)
sense_data_size = ei->SenseLen;
memcpy(cmd->sense_buffer, ei->SenseInfo, sense_data_size);
scsi_set_resid(cmd, ei->ResidualCnt);
if (ei->CommandStatus == 0) {
......@@ -2580,7 +2585,8 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp)
c->SG[0].Ext = 0; /* we are not chaining*/
}
hpsa_scsi_do_simple_cmd_core(h, c);
hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL);
if (iocommand.buf_size > 0)
hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL);
check_ioctl_unit_attention(h, c);
/* Copy the error information out */
......
......@@ -4306,8 +4306,8 @@ static void ibmvfc_do_work(struct ibmvfc_host *vhost)
spin_lock_irqsave(vhost->host->host_lock, flags);
if (rc == H_CLOSED)
vio_enable_interrupts(to_vio_dev(vhost->dev));
else if (rc || (rc = ibmvfc_send_crq_init(vhost)) ||
(rc = vio_enable_interrupts(to_vio_dev(vhost->dev)))) {
if (rc || (rc = ibmvfc_send_crq_init(vhost)) ||
(rc = vio_enable_interrupts(to_vio_dev(vhost->dev)))) {
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
dev_err(vhost->dev, "Error after reset (rc=%d)\n", rc);
}
......
obj-$(CONFIG_SCSI_ISCI) += isci.o
isci-objs := init.o phy.o request.o \
remote_device.o port.o \
host.o task.o probe_roms.o \
remote_node_context.o \
remote_node_table.o \
unsolicited_frame_control.o \
port_config.o \
# Makefile for create_fw
#
CC=gcc
CFLAGS=-c -Wall -O2 -g
LDFLAGS=
SOURCES=create_fw.c
OBJECTS=$(SOURCES:.cpp=.o)
EXECUTABLE=create_fw
all: $(SOURCES) $(EXECUTABLE)
$(EXECUTABLE): $(OBJECTS)
$(CC) $(LDFLAGS) $(OBJECTS) -o $@
.c.o:
$(CC) $(CFLAGS) $< -O $@
clean:
rm -f *.o $(EXECUTABLE)
This defines the temporary binary blow we are to pass to the SCU
driver to emulate the binary firmware that we will eventually be
able to access via NVRAM on the SCU controller.
The current size of the binary blob is expected to be 149 bytes or larger
Header Types:
0x1: Phy Masks
0x2: Phy Gens
0x3: SAS Addrs
0xff: End of Data
ID string - u8[12]: "#SCU MAGIC#\0"
Version - u8: 1
SubVersion - u8: 0
Header Type - u8: 0x1
Size - u8: 8
Phy Mask - u32[8]
Header Type - u8: 0x2
Size - u8: 8
Phy Gen - u32[8]
Header Type - u8: 0x3
Size - u8: 8
Sas Addr - u64[8]
Header Type - u8: 0xf
==============================================================================
Place isci_firmware.bin in /lib/firmware
Be sure to recreate the initramfs image to include the firmware.
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <asm/types.h>
#include <strings.h>
#include <stdint.h>
#include "create_fw.h"
#include "../probe_roms.h"
int write_blob(struct isci_orom *isci_orom)
{
FILE *fd;
int err;
size_t count;
fd = fopen(blob_name, "w+");
if (!fd) {
perror("Open file for write failed");
fclose(fd);
return -EIO;
}
count = fwrite(isci_orom, sizeof(struct isci_orom), 1, fd);
if (count != 1) {
perror("Write data failed");
fclose(fd);
return -EIO;
}
fclose(fd);
return 0;
}
void set_binary_values(struct isci_orom *isci_orom)
{
int ctrl_idx, phy_idx, port_idx;
/* setting OROM signature */
strncpy(isci_orom->hdr.signature, sig, strlen(sig));
isci_orom->hdr.version = version;
isci_orom->hdr.total_block_length = sizeof(struct isci_orom);
isci_orom->hdr.hdr_length = sizeof(struct sci_bios_oem_param_block_hdr);
isci_orom->hdr.num_elements = num_elements;
for (ctrl_idx = 0; ctrl_idx < 2; ctrl_idx++) {
isci_orom->ctrl[ctrl_idx].controller.mode_type = mode_type;
isci_orom->ctrl[ctrl_idx].controller.max_concurrent_dev_spin_up =
max_num_concurrent_dev_spin_up;
isci_orom->ctrl[ctrl_idx].controller.do_enable_ssc =
enable_ssc;
for (port_idx = 0; port_idx < 4; port_idx++)
isci_orom->ctrl[ctrl_idx].ports[port_idx].phy_mask =
phy_mask[ctrl_idx][port_idx];
for (phy_idx = 0; phy_idx < 4; phy_idx++) {
isci_orom->ctrl[ctrl_idx].phys[phy_idx].sas_address.high =
(__u32)(sas_addr[ctrl_idx][phy_idx] >> 32);
isci_orom->ctrl[ctrl_idx].phys[phy_idx].sas_address.low =
(__u32)(sas_addr[ctrl_idx][phy_idx]);
isci_orom->ctrl[ctrl_idx].phys[phy_idx].afe_tx_amp_control0 =
afe_tx_amp_control0;
isci_orom->ctrl[ctrl_idx].phys[phy_idx].afe_tx_amp_control1 =
afe_tx_amp_control1;
isci_orom->ctrl[ctrl_idx].phys[phy_idx].afe_tx_amp_control2 =
afe_tx_amp_control2;
isci_orom->ctrl[ctrl_idx].phys[phy_idx].afe_tx_amp_control3 =
afe_tx_amp_control3;
}
}
}
int main(void)
{
int err;
struct isci_orom *isci_orom;
isci_orom = malloc(sizeof(struct isci_orom));
memset(isci_orom, 0, sizeof(struct isci_orom));
set_binary_values(isci_orom);
err = write_blob(isci_orom);
if (err < 0) {
free(isci_orom);
return err;
}
free(isci_orom);
return 0;
}
#ifndef _CREATE_FW_H_
#define _CREATE_FW_H_
#include "../probe_roms.h"
/* we are configuring for 2 SCUs */
static const int num_elements = 2;
/*
* For all defined arrays:
* elements 0-3 are for SCU0, ports 0-3
* elements 4-7 are for SCU1, ports 0-3
*
* valid configurations for one SCU are:
* P0 P1 P2 P3
* ----------------
* 0xF,0x0,0x0,0x0 # 1 x4 port
* 0x3,0x0,0x4,0x8 # Phys 0 and 1 are a x2 port, phy 2 and phy 3 are each x1
* # ports
* 0x1,0x2,0xC,0x0 # Phys 0 and 1 are each x1 ports, phy 2 and phy 3 are a x2
* # port
* 0x3,0x0,0xC,0x0 # Phys 0 and 1 are a x2 port, phy 2 and phy 3 are a x2 port
* 0x1,0x2,0x4,0x8 # Each phy is a x1 port (this is the default configuration)
*
* if there is a port/phy on which you do not wish to override the default
* values, use the value assigned to UNINIT_PARAM (255).
*/
/* discovery mode type (port auto config mode by default ) */
/*
* if there is a port/phy on which you do not wish to override the default
* values, use the value "0000000000000000". SAS address of zero's is
* considered invalid and will not be used.
*/
#ifdef MPC
static const int mode_type = SCIC_PORT_MANUAL_CONFIGURATION_MODE;
static const __u8 phy_mask[2][4] = { {1, 2, 4, 8},
{1, 2, 4, 8} };
static const unsigned long long sas_addr[2][4] = { { 0x5FCFFFFFF0000001ULL,
0x5FCFFFFFF0000002ULL,
0x5FCFFFFFF0000003ULL,
0x5FCFFFFFF0000004ULL },
{ 0x5FCFFFFFF0000005ULL,
0x5FCFFFFFF0000006ULL,
0x5FCFFFFFF0000007ULL,
0x5FCFFFFFF0000008ULL } };
#else /* APC (default) */
static const int mode_type = SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE;
static const __u8 phy_mask[2][4];
static const unsigned long long sas_addr[2][4] = { { 0x5FCFFFFF00000001ULL,
0x5FCFFFFF00000001ULL,
0x5FCFFFFF00000001ULL,
0x5FCFFFFF00000001ULL },
{ 0x5FCFFFFF00000002ULL,
0x5FCFFFFF00000002ULL,
0x5FCFFFFF00000002ULL,
0x5FCFFFFF00000002ULL } };
#endif
/* Maximum number of concurrent device spin up */
static const int max_num_concurrent_dev_spin_up = 1;
/* enable of ssc operation */
static const int enable_ssc;
/* AFE_TX_AMP_CONTROL */
static const unsigned int afe_tx_amp_control0 = 0x000bdd08;
static const unsigned int afe_tx_amp_control1 = 0x000ffc00;
static const unsigned int afe_tx_amp_control2 = 0x000b7c09;
static const unsigned int afe_tx_amp_control3 = 0x000afc6e;
static const char blob_name[] = "isci_firmware.bin";
static const char sig[] = "ISCUOEMB";
static const unsigned char version = 0x10;
#endif
此差异已折叠。
/*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SCI_HOST_H_
#define _SCI_HOST_H_
#include "remote_device.h"
#include "phy.h"
#include "isci.h"
#include "remote_node_table.h"
#include "registers.h"
#include "unsolicited_frame_control.h"
#include "probe_roms.h"
struct isci_request;
struct scu_task_context;
/**
* struct sci_power_control -
*
* This structure defines the fields for managing power control for direct
* attached disk devices.
*/
struct sci_power_control {
/**
* This field is set when the power control timer is running and cleared when
* it is not.
*/
bool timer_started;
/**
* Timer to control when the directed attached disks can consume power.
*/
struct sci_timer timer;
/**
* This field is used to keep track of how many phys are put into the
* requesters field.
*/
u8 phys_waiting;
/**
* This field is used to keep track of how many phys have been granted to consume power
*/
u8 phys_granted_power;
/**
* This field is an array of phys that we are waiting on. The phys are direct
* mapped into requesters via struct sci_phy.phy_index
*/
struct isci_phy *requesters[SCI_MAX_PHYS];
};
struct sci_port_configuration_agent;
typedef void (*port_config_fn)(struct isci_host *,
struct sci_port_configuration_agent *,
struct isci_port *, struct isci_phy *);
struct sci_port_configuration_agent {
u16 phy_configured_mask;
u16 phy_ready_mask;
struct {
u8 min_index;
u8 max_index;
} phy_valid_port_range[SCI_MAX_PHYS];
bool timer_pending;
port_config_fn link_up_handler;
port_config_fn link_down_handler;
struct sci_timer timer;
};
/**
* isci_host - primary host/controller object
* @timer: timeout start/stop operations
* @device_table: rni (hw remote node index) to remote device lookup table
* @available_remote_nodes: rni allocator
* @power_control: manage device spin up
* @io_request_sequence: generation number for tci's (task contexts)
* @task_context_table: hw task context table
* @remote_node_context_table: hw remote node context table
* @completion_queue: hw-producer driver-consumer communication ring
* @completion_queue_get: tracks the driver 'head' of the ring to notify hw
* @logical_port_entries: min({driver|silicon}-supported-port-count)
* @remote_node_entries: min({driver|silicon}-supported-node-count)
* @task_context_entries: min({driver|silicon}-supported-task-count)
* @phy_timer: phy startup timer
* @invalid_phy_mask: if an invalid_link_up notification is reported a bit for
* the phy index is set so further notifications are not
* made. Once the phy reports link up and is made part of a
* port then this bit is cleared.
*/
struct isci_host {
struct sci_base_state_machine sm;
/* XXX can we time this externally */
struct sci_timer timer;
/* XXX drop reference module params directly */
struct sci_user_parameters user_parameters;
/* XXX no need to be a union */
struct sci_oem_params oem_parameters;
struct sci_port_configuration_agent port_agent;
struct isci_remote_device *device_table[SCI_MAX_REMOTE_DEVICES];
struct sci_remote_node_table available_remote_nodes;
struct sci_power_control power_control;
u8 io_request_sequence[SCI_MAX_IO_REQUESTS];
struct scu_task_context *task_context_table;
dma_addr_t task_context_dma;
union scu_remote_node_context *remote_node_context_table;
u32 *completion_queue;
u32 completion_queue_get;
u32 logical_port_entries;
u32 remote_node_entries;
u32 task_context_entries;
struct sci_unsolicited_frame_control uf_control;
/* phy startup */
struct sci_timer phy_timer;
/* XXX kill */
bool phy_startup_timer_pending;
u32 next_phy_to_start;
/* XXX convert to unsigned long and use bitops */
u8 invalid_phy_mask;
/* TODO attempt dynamic interrupt coalescing scheme */
u16 interrupt_coalesce_number;
u32 interrupt_coalesce_timeout;
struct smu_registers __iomem *smu_registers;
struct scu_registers __iomem *scu_registers;
u16 tci_head;
u16 tci_tail;
u16 tci_pool[SCI_MAX_IO_REQUESTS];
int id; /* unique within a given pci device */
struct isci_phy phys[SCI_MAX_PHYS];
struct isci_port ports[SCI_MAX_PORTS + 1]; /* includes dummy port */
struct sas_ha_struct sas_ha;
spinlock_t state_lock;
struct pci_dev *pdev;
enum isci_status status;
#define IHOST_START_PENDING 0
#define IHOST_STOP_PENDING 1
unsigned long flags;
wait_queue_head_t eventq;
struct Scsi_Host *shost;
struct tasklet_struct completion_tasklet;
struct list_head requests_to_complete;
struct list_head requests_to_errorback;
spinlock_t scic_lock;
struct isci_request *reqs[SCI_MAX_IO_REQUESTS];
struct isci_remote_device devices[SCI_MAX_REMOTE_DEVICES];
};
/**
* enum sci_controller_states - This enumeration depicts all the states
* for the common controller state machine.
*/
enum sci_controller_states {
/**
* Simply the initial state for the base controller state machine.
*/
SCIC_INITIAL = 0,
/**
* This state indicates that the controller is reset. The memory for
* the controller is in it's initial state, but the controller requires
* initialization.
* This state is entered from the INITIAL state.
* This state is entered from the RESETTING state.
*/
SCIC_RESET,
/**
* This state is typically an action state that indicates the controller
* is in the process of initialization. In this state no new IO operations
* are permitted.
* This state is entered from the RESET state.
*/
SCIC_INITIALIZING,
/**
* This state indicates that the controller has been successfully
* initialized. In this state no new IO operations are permitted.
* This state is entered from the INITIALIZING state.
*/
SCIC_INITIALIZED,
/**
* This state indicates the the controller is in the process of becoming
* ready (i.e. starting). In this state no new IO operations are permitted.
* This state is entered from the INITIALIZED state.
*/
SCIC_STARTING,
/**
* This state indicates the controller is now ready. Thus, the user
* is able to perform IO operations on the controller.
* This state is entered from the STARTING state.
*/
SCIC_READY,
/**
* This state is typically an action state that indicates the controller
* is in the process of resetting. Thus, the user is unable to perform
* IO operations on the controller. A reset is considered destructive in
* most cases.
* This state is entered from the READY state.
* This state is entered from the FAILED state.
* This state is entered from the STOPPED state.
*/
SCIC_RESETTING,
/**
* This state indicates that the controller is in the process of stopping.
* In this state no new IO operations are permitted, but existing IO
* operations are allowed to complete.
* This state is entered from the READY state.
*/
SCIC_STOPPING,
/**
* This state indicates that the controller has successfully been stopped.
* In this state no new IO operations are permitted.
* This state is entered from the STOPPING state.
*/
SCIC_STOPPED,
/**
* This state indicates that the controller could not successfully be
* initialized. In this state no new IO operations are permitted.
* This state is entered from the INITIALIZING state.
* This state is entered from the STARTING state.
* This state is entered from the STOPPING state.
* This state is entered from the RESETTING state.
*/
SCIC_FAILED,
};
/**
* struct isci_pci_info - This class represents the pci function containing the
* controllers. Depending on PCI SKU, there could be up to 2 controllers in
* the PCI function.
*/
#define SCI_MAX_MSIX_INT (SCI_NUM_MSI_X_INT*SCI_MAX_CONTROLLERS)
struct isci_pci_info {
struct msix_entry msix_entries[SCI_MAX_MSIX_INT];
struct isci_host *hosts[SCI_MAX_CONTROLLERS];
struct isci_orom *orom;
};
static inline struct isci_pci_info *to_pci_info(struct pci_dev *pdev)
{
return pci_get_drvdata(pdev);
}
#define for_each_isci_host(id, ihost, pdev) \
for (id = 0, ihost = to_pci_info(pdev)->hosts[id]; \
id < ARRAY_SIZE(to_pci_info(pdev)->hosts) && ihost; \
ihost = to_pci_info(pdev)->hosts[++id])
static inline enum isci_status isci_host_get_state(struct isci_host *isci_host)
{
return isci_host->status;
}
static inline void isci_host_change_state(struct isci_host *isci_host,
enum isci_status status)
{
unsigned long flags;
dev_dbg(&isci_host->pdev->dev,
"%s: isci_host = %p, state = 0x%x",
__func__,
isci_host,
status);
spin_lock_irqsave(&isci_host->state_lock, flags);
isci_host->status = status;
spin_unlock_irqrestore(&isci_host->state_lock, flags);
}
static inline void wait_for_start(struct isci_host *ihost)
{
wait_event(ihost->eventq, !test_bit(IHOST_START_PENDING, &ihost->flags));
}
static inline void wait_for_stop(struct isci_host *ihost)
{
wait_event(ihost->eventq, !test_bit(IHOST_STOP_PENDING, &ihost->flags));
}
static inline void wait_for_device_start(struct isci_host *ihost, struct isci_remote_device *idev)
{
wait_event(ihost->eventq, !test_bit(IDEV_START_PENDING, &idev->flags));
}
static inline void wait_for_device_stop(struct isci_host *ihost, struct isci_remote_device *idev)
{
wait_event(ihost->eventq, !test_bit(IDEV_STOP_PENDING, &idev->flags));
}
static inline struct isci_host *dev_to_ihost(struct domain_device *dev)
{
return dev->port->ha->lldd_ha;
}
/* we always use protocol engine group zero */
#define ISCI_PEG 0
/* see sci_controller_io_tag_allocate|free for how seq and tci are built */
#define ISCI_TAG(seq, tci) (((u16) (seq)) << 12 | tci)
/* these are returned by the hardware, so sanitize them */
#define ISCI_TAG_SEQ(tag) (((tag) >> 12) & (SCI_MAX_SEQ-1))
#define ISCI_TAG_TCI(tag) ((tag) & (SCI_MAX_IO_REQUESTS-1))
/* expander attached sata devices require 3 rnc slots */
static inline int sci_remote_device_node_count(struct isci_remote_device *idev)
{
struct domain_device *dev = idev->domain_dev;
if ((dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) &&
!idev->is_direct_attached)
return SCU_STP_REMOTE_NODE_COUNT;
return SCU_SSP_REMOTE_NODE_COUNT;
}
/**
* sci_controller_clear_invalid_phy() -
*
* This macro will clear the bit in the invalid phy mask for this controller
* object. This is used to control messages reported for invalid link up
* notifications.
*/
#define sci_controller_clear_invalid_phy(controller, phy) \
((controller)->invalid_phy_mask &= ~(1 << (phy)->phy_index))
static inline struct device *sciphy_to_dev(struct isci_phy *iphy)
{
if (!iphy || !iphy->isci_port || !iphy->isci_port->isci_host)
return NULL;
return &iphy->isci_port->isci_host->pdev->dev;
}
static inline struct device *sciport_to_dev(struct isci_port *iport)
{
if (!iport || !iport->isci_host)
return NULL;
return &iport->isci_host->pdev->dev;
}
static inline struct device *scirdev_to_dev(struct isci_remote_device *idev)
{
if (!idev || !idev->isci_port || !idev->isci_port->isci_host)
return NULL;
return &idev->isci_port->isci_host->pdev->dev;
}
static inline bool is_a2(struct pci_dev *pdev)
{
if (pdev->revision < 4)
return true;
return false;
}
static inline bool is_b0(struct pci_dev *pdev)
{
if (pdev->revision == 4)
return true;
return false;
}
static inline bool is_c0(struct pci_dev *pdev)
{
if (pdev->revision >= 5)
return true;
return false;
}
void sci_controller_post_request(struct isci_host *ihost,
u32 request);
void sci_controller_release_frame(struct isci_host *ihost,
u32 frame_index);
void sci_controller_copy_sata_response(void *response_buffer,
void *frame_header,
void *frame_buffer);
enum sci_status sci_controller_allocate_remote_node_context(struct isci_host *ihost,
struct isci_remote_device *idev,
u16 *node_id);
void sci_controller_free_remote_node_context(
struct isci_host *ihost,
struct isci_remote_device *idev,
u16 node_id);
struct isci_request *sci_request_by_tag(struct isci_host *ihost,
u16 io_tag);
void sci_controller_power_control_queue_insert(
struct isci_host *ihost,
struct isci_phy *iphy);
void sci_controller_power_control_queue_remove(
struct isci_host *ihost,
struct isci_phy *iphy);
void sci_controller_link_up(
struct isci_host *ihost,
struct isci_port *iport,
struct isci_phy *iphy);
void sci_controller_link_down(
struct isci_host *ihost,
struct isci_port *iport,
struct isci_phy *iphy);
void sci_controller_remote_device_stopped(
struct isci_host *ihost,
struct isci_remote_device *idev);
void sci_controller_copy_task_context(
struct isci_host *ihost,
struct isci_request *ireq);
void sci_controller_register_setup(struct isci_host *ihost);
enum sci_status sci_controller_continue_io(struct isci_request *ireq);
int isci_host_scan_finished(struct Scsi_Host *, unsigned long);
void isci_host_scan_start(struct Scsi_Host *);
u16 isci_alloc_tag(struct isci_host *ihost);
enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag);
void isci_tci_free(struct isci_host *ihost, u16 tci);
int isci_host_init(struct isci_host *);
void isci_host_init_controller_names(
struct isci_host *isci_host,
unsigned int controller_idx);
void isci_host_deinit(
struct isci_host *);
void isci_host_port_link_up(
struct isci_host *,
struct isci_port *,
struct isci_phy *);
int isci_host_dev_found(struct domain_device *);
void isci_host_remote_device_start_complete(
struct isci_host *,
struct isci_remote_device *,
enum sci_status);
void sci_controller_disable_interrupts(
struct isci_host *ihost);
enum sci_status sci_controller_start_io(
struct isci_host *ihost,
struct isci_remote_device *idev,
struct isci_request *ireq);
enum sci_task_status sci_controller_start_task(
struct isci_host *ihost,
struct isci_remote_device *idev,
struct isci_request *ireq);
enum sci_status sci_controller_terminate_request(
struct isci_host *ihost,
struct isci_remote_device *idev,
struct isci_request *ireq);
enum sci_status sci_controller_complete_io(
struct isci_host *ihost,
struct isci_remote_device *idev,
struct isci_request *ireq);
void sci_port_configuration_agent_construct(
struct sci_port_configuration_agent *port_agent);
enum sci_status sci_port_configuration_agent_initialize(
struct isci_host *ihost,
struct sci_port_configuration_agent *port_agent);
#endif
/*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/firmware.h>
#include <linux/efi.h>
#include <asm/string.h>
#include "isci.h"
#include "task.h"
#include "probe_roms.h"
static struct scsi_transport_template *isci_transport_template;
static DEFINE_PCI_DEVICE_TABLE(isci_id_table) = {
{ PCI_VDEVICE(INTEL, 0x1D61),},
{ PCI_VDEVICE(INTEL, 0x1D63),},
{ PCI_VDEVICE(INTEL, 0x1D65),},
{ PCI_VDEVICE(INTEL, 0x1D67),},
{ PCI_VDEVICE(INTEL, 0x1D69),},
{ PCI_VDEVICE(INTEL, 0x1D6B),},
{ PCI_VDEVICE(INTEL, 0x1D60),},
{ PCI_VDEVICE(INTEL, 0x1D62),},
{ PCI_VDEVICE(INTEL, 0x1D64),},
{ PCI_VDEVICE(INTEL, 0x1D66),},
{ PCI_VDEVICE(INTEL, 0x1D68),},
{ PCI_VDEVICE(INTEL, 0x1D6A),},
{}
};
MODULE_DEVICE_TABLE(pci, isci_id_table);
/* linux isci specific settings */
unsigned char no_outbound_task_to = 20;
module_param(no_outbound_task_to, byte, 0);
MODULE_PARM_DESC(no_outbound_task_to, "No Outbound Task Timeout (1us incr)");
u16 ssp_max_occ_to = 20;
module_param(ssp_max_occ_to, ushort, 0);
MODULE_PARM_DESC(ssp_max_occ_to, "SSP Max occupancy timeout (100us incr)");
u16 stp_max_occ_to = 5;
module_param(stp_max_occ_to, ushort, 0);
MODULE_PARM_DESC(stp_max_occ_to, "STP Max occupancy timeout (100us incr)");
u16 ssp_inactive_to = 5;
module_param(ssp_inactive_to, ushort, 0);
MODULE_PARM_DESC(ssp_inactive_to, "SSP inactivity timeout (100us incr)");
u16 stp_inactive_to = 5;
module_param(stp_inactive_to, ushort, 0);
MODULE_PARM_DESC(stp_inactive_to, "STP inactivity timeout (100us incr)");
unsigned char phy_gen = 3;
module_param(phy_gen, byte, 0);
MODULE_PARM_DESC(phy_gen, "PHY generation (1: 1.5Gbps 2: 3.0Gbps 3: 6.0Gbps)");
unsigned char max_concurr_spinup = 1;
module_param(max_concurr_spinup, byte, 0);
MODULE_PARM_DESC(max_concurr_spinup, "Max concurrent device spinup");
static struct scsi_host_template isci_sht = {
.module = THIS_MODULE,
.name = DRV_NAME,
.proc_name = DRV_NAME,
.queuecommand = sas_queuecommand,
.target_alloc = sas_target_alloc,
.slave_configure = sas_slave_configure,
.slave_destroy = sas_slave_destroy,
.scan_finished = isci_host_scan_finished,
.scan_start = isci_host_scan_start,
.change_queue_depth = sas_change_queue_depth,
.change_queue_type = sas_change_queue_type,
.bios_param = sas_bios_param,
.can_queue = ISCI_CAN_QUEUE_VAL,
.cmd_per_lun = 1,
.this_id = -1,
.sg_tablesize = SG_ALL,
.max_sectors = SCSI_DEFAULT_MAX_SECTORS,
.use_clustering = ENABLE_CLUSTERING,
.eh_device_reset_handler = sas_eh_device_reset_handler,
.eh_bus_reset_handler = isci_bus_reset_handler,
.slave_alloc = sas_slave_alloc,
.target_destroy = sas_target_destroy,
.ioctl = sas_ioctl,
};
static struct sas_domain_function_template isci_transport_ops = {
/* The class calls these to notify the LLDD of an event. */
.lldd_port_formed = isci_port_formed,
.lldd_port_deformed = isci_port_deformed,
/* The class calls these when a device is found or gone. */
.lldd_dev_found = isci_remote_device_found,
.lldd_dev_gone = isci_remote_device_gone,
.lldd_execute_task = isci_task_execute_task,
/* Task Management Functions. Must be called from process context. */
.lldd_abort_task = isci_task_abort_task,
.lldd_abort_task_set = isci_task_abort_task_set,
.lldd_clear_aca = isci_task_clear_aca,
.lldd_clear_task_set = isci_task_clear_task_set,
.lldd_I_T_nexus_reset = isci_task_I_T_nexus_reset,
.lldd_lu_reset = isci_task_lu_reset,
.lldd_query_task = isci_task_query_task,
/* Port and Adapter management */
.lldd_clear_nexus_port = isci_task_clear_nexus_port,
.lldd_clear_nexus_ha = isci_task_clear_nexus_ha,
/* Phy management */
.lldd_control_phy = isci_phy_control,
};
/******************************************************************************
* P R O T E C T E D M E T H O D S
******************************************************************************/
/**
* isci_register_sas_ha() - This method initializes various lldd
* specific members of the sas_ha struct and calls the libsas
* sas_register_ha() function.
* @isci_host: This parameter specifies the lldd specific wrapper for the
* libsas sas_ha struct.
*
* This method returns an error code indicating sucess or failure. The user
* should check for possible memory allocation error return otherwise, a zero
* indicates success.
*/
static int isci_register_sas_ha(struct isci_host *isci_host)
{
int i;
struct sas_ha_struct *sas_ha = &(isci_host->sas_ha);
struct asd_sas_phy **sas_phys;
struct asd_sas_port **sas_ports;
sas_phys = devm_kzalloc(&isci_host->pdev->dev,
SCI_MAX_PHYS * sizeof(void *),
GFP_KERNEL);
if (!sas_phys)
return -ENOMEM;
sas_ports = devm_kzalloc(&isci_host->pdev->dev,
SCI_MAX_PORTS * sizeof(void *),
GFP_KERNEL);
if (!sas_ports)
return -ENOMEM;
/*----------------- Libsas Initialization Stuff----------------------
* Set various fields in the sas_ha struct:
*/
sas_ha->sas_ha_name = DRV_NAME;
sas_ha->lldd_module = THIS_MODULE;
sas_ha->sas_addr = &isci_host->phys[0].sas_addr[0];
/* set the array of phy and port structs. */
for (i = 0; i < SCI_MAX_PHYS; i++) {
sas_phys[i] = &isci_host->phys[i].sas_phy;
sas_ports[i] = &isci_host->ports[i].sas_port;
}
sas_ha->sas_phy = sas_phys;
sas_ha->sas_port = sas_ports;
sas_ha->num_phys = SCI_MAX_PHYS;
sas_ha->lldd_queue_size = ISCI_CAN_QUEUE_VAL;
sas_ha->lldd_max_execute_num = 1;
sas_ha->strict_wide_ports = 1;
sas_register_ha(sas_ha);
return 0;
}
static ssize_t isci_show_id(struct device *dev, struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = container_of(dev, typeof(*shost), shost_dev);
struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
struct isci_host *ihost = container_of(sas_ha, typeof(*ihost), sas_ha);
return snprintf(buf, PAGE_SIZE, "%d\n", ihost->id);
}
static DEVICE_ATTR(isci_id, S_IRUGO, isci_show_id, NULL);
static void isci_unregister(struct isci_host *isci_host)
{
struct Scsi_Host *shost;
if (!isci_host)
return;
shost = isci_host->shost;
device_remove_file(&shost->shost_dev, &dev_attr_isci_id);
sas_unregister_ha(&isci_host->sas_ha);
sas_remove_host(isci_host->shost);
scsi_remove_host(isci_host->shost);
scsi_host_put(isci_host->shost);
}
static int __devinit isci_pci_init(struct pci_dev *pdev)
{
int err, bar_num, bar_mask = 0;
void __iomem * const *iomap;
err = pcim_enable_device(pdev);
if (err) {
dev_err(&pdev->dev,
"failed enable PCI device %s!\n",
pci_name(pdev));
return err;
}
for (bar_num = 0; bar_num < SCI_PCI_BAR_COUNT; bar_num++)
bar_mask |= 1 << (bar_num * 2);
err = pcim_iomap_regions(pdev, bar_mask, DRV_NAME);
if (err)
return err;
iomap = pcim_iomap_table(pdev);
if (!iomap)
return -ENOMEM;
pci_set_master(pdev);
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
if (err) {
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (err)
return err;
}
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
if (err) {
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (err)
return err;
}
return 0;
}
static int num_controllers(struct pci_dev *pdev)
{
/* bar size alone can tell us if we are running with a dual controller
* part, no need to trust revision ids that might be under broken firmware
* control
*/
resource_size_t scu_bar_size = pci_resource_len(pdev, SCI_SCU_BAR*2);
resource_size_t smu_bar_size = pci_resource_len(pdev, SCI_SMU_BAR*2);
if (scu_bar_size >= SCI_SCU_BAR_SIZE*SCI_MAX_CONTROLLERS &&
smu_bar_size >= SCI_SMU_BAR_SIZE*SCI_MAX_CONTROLLERS)
return SCI_MAX_CONTROLLERS;
else
return 1;
}
static int isci_setup_interrupts(struct pci_dev *pdev)
{
int err, i, num_msix;
struct isci_host *ihost;
struct isci_pci_info *pci_info = to_pci_info(pdev);
/*
* Determine the number of vectors associated with this
* PCI function.
*/
num_msix = num_controllers(pdev) * SCI_NUM_MSI_X_INT;
for (i = 0; i < num_msix; i++)
pci_info->msix_entries[i].entry = i;
err = pci_enable_msix(pdev, pci_info->msix_entries, num_msix);
if (err)
goto intx;
for (i = 0; i < num_msix; i++) {
int id = i / SCI_NUM_MSI_X_INT;
struct msix_entry *msix = &pci_info->msix_entries[i];
irq_handler_t isr;
ihost = pci_info->hosts[id];
/* odd numbered vectors are error interrupts */
if (i & 1)
isr = isci_error_isr;
else
isr = isci_msix_isr;
err = devm_request_irq(&pdev->dev, msix->vector, isr, 0,
DRV_NAME"-msix", ihost);
if (!err)
continue;
dev_info(&pdev->dev, "msix setup failed falling back to intx\n");
while (i--) {
id = i / SCI_NUM_MSI_X_INT;
ihost = pci_info->hosts[id];
msix = &pci_info->msix_entries[i];
devm_free_irq(&pdev->dev, msix->vector, ihost);
}
pci_disable_msix(pdev);
goto intx;
}
return 0;
intx:
for_each_isci_host(i, ihost, pdev) {
err = devm_request_irq(&pdev->dev, pdev->irq, isci_intx_isr,
IRQF_SHARED, DRV_NAME"-intx", ihost);
if (err)
break;
}
return err;
}
static struct isci_host *isci_host_alloc(struct pci_dev *pdev, int id)
{
struct isci_host *isci_host;
struct Scsi_Host *shost;
int err;
isci_host = devm_kzalloc(&pdev->dev, sizeof(*isci_host), GFP_KERNEL);
if (!isci_host)
return NULL;
isci_host->pdev = pdev;
isci_host->id = id;
shost = scsi_host_alloc(&isci_sht, sizeof(void *));
if (!shost)
return NULL;
isci_host->shost = shost;
err = isci_host_init(isci_host);
if (err)
goto err_shost;
SHOST_TO_SAS_HA(shost) = &isci_host->sas_ha;
isci_host->sas_ha.core.shost = shost;
shost->transportt = isci_transport_template;
shost->max_id = ~0;
shost->max_lun = ~0;
shost->max_cmd_len = MAX_COMMAND_SIZE;
err = scsi_add_host(shost, &pdev->dev);
if (err)
goto err_shost;
err = isci_register_sas_ha(isci_host);
if (err)
goto err_shost_remove;
err = device_create_file(&shost->shost_dev, &dev_attr_isci_id);
if (err)
goto err_unregister_ha;
return isci_host;
err_unregister_ha:
sas_unregister_ha(&(isci_host->sas_ha));
err_shost_remove:
scsi_remove_host(shost);
err_shost:
scsi_host_put(shost);
return NULL;
}
static int __devinit isci_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct isci_pci_info *pci_info;
int err, i;
struct isci_host *isci_host;
const struct firmware *fw = NULL;
struct isci_orom *orom = NULL;
char *source = "(platform)";
dev_info(&pdev->dev, "driver configured for rev: %d silicon\n",
pdev->revision);
pci_info = devm_kzalloc(&pdev->dev, sizeof(*pci_info), GFP_KERNEL);
if (!pci_info)
return -ENOMEM;
pci_set_drvdata(pdev, pci_info);
if (efi_enabled)
orom = isci_get_efi_var(pdev);
if (!orom)
orom = isci_request_oprom(pdev);
for (i = 0; orom && i < ARRAY_SIZE(orom->ctrl); i++) {
if (sci_oem_parameters_validate(&orom->ctrl[i])) {
dev_warn(&pdev->dev,
"[%d]: invalid oem parameters detected, falling back to firmware\n", i);
devm_kfree(&pdev->dev, orom);
orom = NULL;
break;
}
}
if (!orom) {
source = "(firmware)";
orom = isci_request_firmware(pdev, fw);
if (!orom) {
/* TODO convert this to WARN_TAINT_ONCE once the
* orom/efi parameter support is widely available
*/
dev_warn(&pdev->dev,
"Loading user firmware failed, using default "
"values\n");
dev_warn(&pdev->dev,
"Default OEM configuration being used: 4 "
"narrow ports, and default SAS Addresses\n");
}
}
if (orom)
dev_info(&pdev->dev,
"OEM SAS parameters (version: %u.%u) loaded %s\n",
(orom->hdr.version & 0xf0) >> 4,
(orom->hdr.version & 0xf), source);
pci_info->orom = orom;
err = isci_pci_init(pdev);
if (err)
return err;
for (i = 0; i < num_controllers(pdev); i++) {
struct isci_host *h = isci_host_alloc(pdev, i);
if (!h) {
err = -ENOMEM;
goto err_host_alloc;
}
pci_info->hosts[i] = h;
}
err = isci_setup_interrupts(pdev);
if (err)
goto err_host_alloc;
for_each_isci_host(i, isci_host, pdev)
scsi_scan_host(isci_host->shost);
return 0;
err_host_alloc:
for_each_isci_host(i, isci_host, pdev)
isci_unregister(isci_host);
return err;
}
static void __devexit isci_pci_remove(struct pci_dev *pdev)
{
struct isci_host *ihost;
int i;
for_each_isci_host(i, ihost, pdev) {
isci_unregister(ihost);
isci_host_deinit(ihost);
sci_controller_disable_interrupts(ihost);
}
}
static struct pci_driver isci_pci_driver = {
.name = DRV_NAME,
.id_table = isci_id_table,
.probe = isci_pci_probe,
.remove = __devexit_p(isci_pci_remove),
};
static __init int isci_init(void)
{
int err;
pr_info("%s: Intel(R) C600 SAS Controller Driver\n", DRV_NAME);
isci_transport_template = sas_domain_attach_transport(&isci_transport_ops);
if (!isci_transport_template)
return -ENOMEM;
err = pci_register_driver(&isci_pci_driver);
if (err)
sas_release_transport(isci_transport_template);
return err;
}
static __exit void isci_exit(void)
{
pci_unregister_driver(&isci_pci_driver);
sas_release_transport(isci_transport_template);
}
MODULE_LICENSE("Dual BSD/GPL");
MODULE_FIRMWARE(ISCI_FW_NAME);
module_init(isci_init);
module_exit(isci_exit);
/*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __ISCI_H__
#define __ISCI_H__
#include <linux/interrupt.h>
#include <linux/types.h>
#define DRV_NAME "isci"
#define SCI_PCI_BAR_COUNT 2
#define SCI_NUM_MSI_X_INT 2
#define SCI_SMU_BAR 0
#define SCI_SMU_BAR_SIZE (16*1024)
#define SCI_SCU_BAR 1
#define SCI_SCU_BAR_SIZE (4*1024*1024)
#define SCI_IO_SPACE_BAR0 2
#define SCI_IO_SPACE_BAR1 3
#define ISCI_CAN_QUEUE_VAL 250 /* < SCI_MAX_IO_REQUESTS ? */
#define SCIC_CONTROLLER_STOP_TIMEOUT 5000
#define SCI_CONTROLLER_INVALID_IO_TAG 0xFFFF
#define SCI_MAX_PHYS (4UL)
#define SCI_MAX_PORTS SCI_MAX_PHYS
#define SCI_MAX_SMP_PHYS (384) /* not silicon constrained */
#define SCI_MAX_REMOTE_DEVICES (256UL)
#define SCI_MAX_IO_REQUESTS (256UL)
#define SCI_MAX_SEQ (16)
#define SCI_MAX_MSIX_MESSAGES (2)
#define SCI_MAX_SCATTER_GATHER_ELEMENTS 130 /* not silicon constrained */
#define SCI_MAX_CONTROLLERS 2
#define SCI_MAX_DOMAINS SCI_MAX_PORTS
#define SCU_MAX_CRITICAL_NOTIFICATIONS (384)
#define SCU_MAX_EVENTS_SHIFT (7)
#define SCU_MAX_EVENTS (1 << SCU_MAX_EVENTS_SHIFT)
#define SCU_MAX_UNSOLICITED_FRAMES (128)
#define SCU_MAX_COMPLETION_QUEUE_SCRATCH (128)
#define SCU_MAX_COMPLETION_QUEUE_ENTRIES (SCU_MAX_CRITICAL_NOTIFICATIONS \
+ SCU_MAX_EVENTS \
+ SCU_MAX_UNSOLICITED_FRAMES \
+ SCI_MAX_IO_REQUESTS \
+ SCU_MAX_COMPLETION_QUEUE_SCRATCH)
#define SCU_MAX_COMPLETION_QUEUE_SHIFT (ilog2(SCU_MAX_COMPLETION_QUEUE_ENTRIES))
#define SCU_ABSOLUTE_MAX_UNSOLICITED_FRAMES (4096)
#define SCU_UNSOLICITED_FRAME_BUFFER_SIZE (1024)
#define SCU_INVALID_FRAME_INDEX (0xFFFF)
#define SCU_IO_REQUEST_MAX_SGE_SIZE (0x00FFFFFF)
#define SCU_IO_REQUEST_MAX_TRANSFER_LENGTH (0x00FFFFFF)
static inline void check_sizes(void)
{
BUILD_BUG_ON_NOT_POWER_OF_2(SCU_MAX_EVENTS);
BUILD_BUG_ON(SCU_MAX_UNSOLICITED_FRAMES <= 8);
BUILD_BUG_ON_NOT_POWER_OF_2(SCU_MAX_UNSOLICITED_FRAMES);
BUILD_BUG_ON_NOT_POWER_OF_2(SCU_MAX_COMPLETION_QUEUE_ENTRIES);
BUILD_BUG_ON(SCU_MAX_UNSOLICITED_FRAMES > SCU_ABSOLUTE_MAX_UNSOLICITED_FRAMES);
BUILD_BUG_ON_NOT_POWER_OF_2(SCI_MAX_IO_REQUESTS);
BUILD_BUG_ON_NOT_POWER_OF_2(SCI_MAX_SEQ);
}
/**
* enum sci_status - This is the general return status enumeration for non-IO,
* non-task management related SCI interface methods.
*
*
*/
enum sci_status {
/**
* This member indicates successful completion.
*/
SCI_SUCCESS = 0,
/**
* This value indicates that the calling method completed successfully,
* but that the IO may have completed before having it's start method
* invoked. This occurs during SAT translation for requests that do
* not require an IO to the target or for any other requests that may
* be completed without having to submit IO.
*/
SCI_SUCCESS_IO_COMPLETE_BEFORE_START,
/**
* This Value indicates that the SCU hardware returned an early response
* because the io request specified more data than is returned by the
* target device (mode pages, inquiry data, etc.). The completion routine
* will handle this case to get the actual number of bytes transferred.
*/
SCI_SUCCESS_IO_DONE_EARLY,
/**
* This member indicates that the object for which a state change is
* being requested is already in said state.
*/
SCI_WARNING_ALREADY_IN_STATE,
/**
* This member indicates interrupt coalescence timer may cause SAS
* specification compliance issues (i.e. SMP target mode response
* frames must be returned within 1.9 milliseconds).
*/
SCI_WARNING_TIMER_CONFLICT,
/**
* This field indicates a sequence of action is not completed yet. Mostly,
* this status is used when multiple ATA commands are needed in a SATI translation.
*/
SCI_WARNING_SEQUENCE_INCOMPLETE,
/**
* This member indicates that there was a general failure.
*/
SCI_FAILURE,
/**
* This member indicates that the SCI implementation is unable to complete
* an operation due to a critical flaw the prevents any further operation
* (i.e. an invalid pointer).
*/
SCI_FATAL_ERROR,
/**
* This member indicates the calling function failed, because the state
* of the controller is in a state that prevents successful completion.
*/
SCI_FAILURE_INVALID_STATE,
/**
* This member indicates the calling function failed, because there is
* insufficient resources/memory to complete the request.
*/
SCI_FAILURE_INSUFFICIENT_RESOURCES,
/**
* This member indicates the calling function failed, because the
* controller object required for the operation can't be located.
*/
SCI_FAILURE_CONTROLLER_NOT_FOUND,
/**
* This member indicates the calling function failed, because the
* discovered controller type is not supported by the library.
*/
SCI_FAILURE_UNSUPPORTED_CONTROLLER_TYPE,
/**
* This member indicates the calling function failed, because the
* requested initialization data version isn't supported.
*/
SCI_FAILURE_UNSUPPORTED_INIT_DATA_VERSION,
/**
* This member indicates the calling function failed, because the
* requested configuration of SAS Phys into SAS Ports is not supported.
*/
SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION,
/**
* This member indicates the calling function failed, because the
* requested protocol is not supported by the remote device, port,
* or controller.
*/
SCI_FAILURE_UNSUPPORTED_PROTOCOL,
/**
* This member indicates the calling function failed, because the
* requested information type is not supported by the SCI implementation.
*/
SCI_FAILURE_UNSUPPORTED_INFORMATION_TYPE,
/**
* This member indicates the calling function failed, because the
* device already exists.
*/
SCI_FAILURE_DEVICE_EXISTS,
/**
* This member indicates the calling function failed, because adding
* a phy to the object is not possible.
*/
SCI_FAILURE_ADDING_PHY_UNSUPPORTED,
/**
* This member indicates the calling function failed, because the
* requested information type is not supported by the SCI implementation.
*/
SCI_FAILURE_UNSUPPORTED_INFORMATION_FIELD,
/**
* This member indicates the calling function failed, because the SCI
* implementation does not support the supplied time limit.
*/
SCI_FAILURE_UNSUPPORTED_TIME_LIMIT,
/**
* This member indicates the calling method failed, because the SCI
* implementation does not contain the specified Phy.
*/
SCI_FAILURE_INVALID_PHY,
/**
* This member indicates the calling method failed, because the SCI
* implementation does not contain the specified Port.
*/
SCI_FAILURE_INVALID_PORT,
/**
* This member indicates the calling method was partly successful
* The port was reset but not all phys in port are operational
*/
SCI_FAILURE_RESET_PORT_PARTIAL_SUCCESS,
/**
* This member indicates that calling method failed
* The port reset did not complete because none of the phys are operational
*/
SCI_FAILURE_RESET_PORT_FAILURE,
/**
* This member indicates the calling method failed, because the SCI
* implementation does not contain the specified remote device.
*/
SCI_FAILURE_INVALID_REMOTE_DEVICE,
/**
* This member indicates the calling method failed, because the remote
* device is in a bad state and requires a reset.
*/
SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED,
/**
* This member indicates the calling method failed, because the SCI
* implementation does not contain or support the specified IO tag.
*/
SCI_FAILURE_INVALID_IO_TAG,
/**
* This member indicates that the operation failed and the user should
* check the response data associated with the IO.
*/
SCI_FAILURE_IO_RESPONSE_VALID,
/**
* This member indicates that the operation failed, the failure is
* controller implementation specific, and the response data associated
* with the request is not valid. You can query for the controller
* specific error information via sci_controller_get_request_status()
*/
SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR,
/**
* This member indicated that the operation failed because the
* user requested this IO to be terminated.
*/
SCI_FAILURE_IO_TERMINATED,
/**
* This member indicates that the operation failed and the associated
* request requires a SCSI abort task to be sent to the target.
*/
SCI_FAILURE_IO_REQUIRES_SCSI_ABORT,
/**
* This member indicates that the operation failed because the supplied
* device could not be located.
*/
SCI_FAILURE_DEVICE_NOT_FOUND,
/**
* This member indicates that the operation failed because the
* objects association is required and is not correctly set.
*/
SCI_FAILURE_INVALID_ASSOCIATION,
/**
* This member indicates that the operation failed, because a timeout
* occurred.
*/
SCI_FAILURE_TIMEOUT,
/**
* This member indicates that the operation failed, because the user
* specified a value that is either invalid or not supported.
*/
SCI_FAILURE_INVALID_PARAMETER_VALUE,
/**
* This value indicates that the operation failed, because the number
* of messages (MSI-X) is not supported.
*/
SCI_FAILURE_UNSUPPORTED_MESSAGE_COUNT,
/**
* This value indicates that the method failed due to a lack of
* available NCQ tags.
*/
SCI_FAILURE_NO_NCQ_TAG_AVAILABLE,
/**
* This value indicates that a protocol violation has occurred on the
* link.
*/
SCI_FAILURE_PROTOCOL_VIOLATION,
/**
* This value indicates a failure condition that retry may help to clear.
*/
SCI_FAILURE_RETRY_REQUIRED,
/**
* This field indicates the retry limit was reached when a retry is attempted
*/
SCI_FAILURE_RETRY_LIMIT_REACHED,
/**
* This member indicates the calling method was partly successful.
* Mostly, this status is used when a LUN_RESET issued to an expander attached
* STP device in READY NCQ substate needs to have RNC suspended/resumed
* before posting TC.
*/
SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS,
/**
* This field indicates an illegal phy connection based on the routing attribute
* of both expander phy attached to each other.
*/
SCI_FAILURE_ILLEGAL_ROUTING_ATTRIBUTE_CONFIGURATION,
/**
* This field indicates a CONFIG ROUTE INFO command has a response with function result
* INDEX DOES NOT EXIST, usually means exceeding max route index.
*/
SCI_FAILURE_EXCEED_MAX_ROUTE_INDEX,
/**
* This value indicates that an unsupported PCI device ID has been
* specified. This indicates that attempts to invoke
* sci_library_allocate_controller() will fail.
*/
SCI_FAILURE_UNSUPPORTED_PCI_DEVICE_ID
};
/**
* enum sci_io_status - This enumeration depicts all of the possible IO
* completion status values. Each value in this enumeration maps directly
* to a value in the enum sci_status enumeration. Please refer to that
* enumeration for detailed comments concerning what the status represents.
*
* Add the API to retrieve the SCU status from the core. Check to see that the
* following status are properly handled: - SCI_IO_FAILURE_UNSUPPORTED_PROTOCOL
* - SCI_IO_FAILURE_INVALID_IO_TAG
*/
enum sci_io_status {
SCI_IO_SUCCESS = SCI_SUCCESS,
SCI_IO_FAILURE = SCI_FAILURE,
SCI_IO_SUCCESS_COMPLETE_BEFORE_START = SCI_SUCCESS_IO_COMPLETE_BEFORE_START,
SCI_IO_SUCCESS_IO_DONE_EARLY = SCI_SUCCESS_IO_DONE_EARLY,
SCI_IO_FAILURE_INVALID_STATE = SCI_FAILURE_INVALID_STATE,
SCI_IO_FAILURE_INSUFFICIENT_RESOURCES = SCI_FAILURE_INSUFFICIENT_RESOURCES,
SCI_IO_FAILURE_UNSUPPORTED_PROTOCOL = SCI_FAILURE_UNSUPPORTED_PROTOCOL,
SCI_IO_FAILURE_RESPONSE_VALID = SCI_FAILURE_IO_RESPONSE_VALID,
SCI_IO_FAILURE_CONTROLLER_SPECIFIC_ERR = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR,
SCI_IO_FAILURE_TERMINATED = SCI_FAILURE_IO_TERMINATED,
SCI_IO_FAILURE_REQUIRES_SCSI_ABORT = SCI_FAILURE_IO_REQUIRES_SCSI_ABORT,
SCI_IO_FAILURE_INVALID_PARAMETER_VALUE = SCI_FAILURE_INVALID_PARAMETER_VALUE,
SCI_IO_FAILURE_NO_NCQ_TAG_AVAILABLE = SCI_FAILURE_NO_NCQ_TAG_AVAILABLE,
SCI_IO_FAILURE_PROTOCOL_VIOLATION = SCI_FAILURE_PROTOCOL_VIOLATION,
SCI_IO_FAILURE_REMOTE_DEVICE_RESET_REQUIRED = SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED,
SCI_IO_FAILURE_RETRY_REQUIRED = SCI_FAILURE_RETRY_REQUIRED,
SCI_IO_FAILURE_RETRY_LIMIT_REACHED = SCI_FAILURE_RETRY_LIMIT_REACHED,
SCI_IO_FAILURE_INVALID_REMOTE_DEVICE = SCI_FAILURE_INVALID_REMOTE_DEVICE
};
/**
* enum sci_task_status - This enumeration depicts all of the possible task
* completion status values. Each value in this enumeration maps directly
* to a value in the enum sci_status enumeration. Please refer to that
* enumeration for detailed comments concerning what the status represents.
*
* Check to see that the following status are properly handled:
*/
enum sci_task_status {
SCI_TASK_SUCCESS = SCI_SUCCESS,
SCI_TASK_FAILURE = SCI_FAILURE,
SCI_TASK_FAILURE_INVALID_STATE = SCI_FAILURE_INVALID_STATE,
SCI_TASK_FAILURE_INSUFFICIENT_RESOURCES = SCI_FAILURE_INSUFFICIENT_RESOURCES,
SCI_TASK_FAILURE_UNSUPPORTED_PROTOCOL = SCI_FAILURE_UNSUPPORTED_PROTOCOL,
SCI_TASK_FAILURE_INVALID_TAG = SCI_FAILURE_INVALID_IO_TAG,
SCI_TASK_FAILURE_RESPONSE_VALID = SCI_FAILURE_IO_RESPONSE_VALID,
SCI_TASK_FAILURE_CONTROLLER_SPECIFIC_ERR = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR,
SCI_TASK_FAILURE_TERMINATED = SCI_FAILURE_IO_TERMINATED,
SCI_TASK_FAILURE_INVALID_PARAMETER_VALUE = SCI_FAILURE_INVALID_PARAMETER_VALUE,
SCI_TASK_FAILURE_REMOTE_DEVICE_RESET_REQUIRED = SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED,
SCI_TASK_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS = SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS
};
/**
* sci_swab32_cpy - convert between scsi and scu-hardware byte format
* @dest: receive the 4-byte endian swapped version of src
* @src: word aligned source buffer
*
* scu hardware handles SSP/SMP control, response, and unidentified
* frames in "big endian dword" order. Regardless of host endian this
* is always a swab32()-per-dword conversion of the standard definition,
* i.e. single byte fields swapped and multi-byte fields in little-
* endian
*/
static inline void sci_swab32_cpy(void *_dest, void *_src, ssize_t word_cnt)
{
u32 *dest = _dest, *src = _src;
while (--word_cnt >= 0)
dest[word_cnt] = swab32(src[word_cnt]);
}
extern unsigned char no_outbound_task_to;
extern u16 ssp_max_occ_to;
extern u16 stp_max_occ_to;
extern u16 ssp_inactive_to;
extern u16 stp_inactive_to;
extern unsigned char phy_gen;
extern unsigned char max_concurr_spinup;
irqreturn_t isci_msix_isr(int vec, void *data);
irqreturn_t isci_intx_isr(int vec, void *data);
irqreturn_t isci_error_isr(int vec, void *data);
/*
* Each timer is associated with a cancellation flag that is set when
* del_timer() is called and checked in the timer callback function. This
* is needed since del_timer_sync() cannot be called with sci_lock held.
* For deinit however, del_timer_sync() is used without holding the lock.
*/
struct sci_timer {
struct timer_list timer;
bool cancel;
};
static inline
void sci_init_timer(struct sci_timer *tmr, void (*fn)(unsigned long))
{
tmr->timer.function = fn;
tmr->timer.data = (unsigned long) tmr;
tmr->cancel = 0;
init_timer(&tmr->timer);
}
static inline void sci_mod_timer(struct sci_timer *tmr, unsigned long msec)
{
tmr->cancel = 0;
mod_timer(&tmr->timer, jiffies + msecs_to_jiffies(msec));
}
static inline void sci_del_timer(struct sci_timer *tmr)
{
tmr->cancel = 1;
del_timer(&tmr->timer);
}
struct sci_base_state_machine {
const struct sci_base_state *state_table;
u32 initial_state_id;
u32 current_state_id;
u32 previous_state_id;
};
typedef void (*sci_state_transition_t)(struct sci_base_state_machine *sm);
struct sci_base_state {
sci_state_transition_t enter_state; /* Called on state entry */
sci_state_transition_t exit_state; /* Called on state exit */
};
extern void sci_init_sm(struct sci_base_state_machine *sm,
const struct sci_base_state *state_table,
u32 initial_state);
extern void sci_change_state(struct sci_base_state_machine *sm, u32 next_state);
#endif /* __ISCI_H__ */
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/*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*/
/* probe_roms - scan for oem parameters */
#include <linux/kernel.h>
#include <linux/firmware.h>
#include <linux/uaccess.h>
#include <linux/efi.h>
#include <asm/probe_roms.h>
#include "isci.h"
#include "task.h"
#include "probe_roms.h"
static efi_char16_t isci_efivar_name[] = {
'R', 's', 't', 'S', 'c', 'u', 'O'
};
struct isci_orom *isci_request_oprom(struct pci_dev *pdev)
{
void __iomem *oprom = pci_map_biosrom(pdev);
struct isci_orom *rom = NULL;
size_t len, i;
int j;
char oem_sig[4];
struct isci_oem_hdr oem_hdr;
u8 *tmp, sum;
if (!oprom)
return NULL;
len = pci_biosrom_size(pdev);
rom = devm_kzalloc(&pdev->dev, sizeof(*rom), GFP_KERNEL);
if (!rom) {
dev_warn(&pdev->dev,
"Unable to allocate memory for orom\n");
return NULL;
}
for (i = 0; i < len && rom; i += ISCI_OEM_SIG_SIZE) {
memcpy_fromio(oem_sig, oprom + i, ISCI_OEM_SIG_SIZE);
/* we think we found the OEM table */
if (memcmp(oem_sig, ISCI_OEM_SIG, ISCI_OEM_SIG_SIZE) == 0) {
size_t copy_len;
memcpy_fromio(&oem_hdr, oprom + i, sizeof(oem_hdr));
copy_len = min(oem_hdr.len - sizeof(oem_hdr),
sizeof(*rom));
memcpy_fromio(rom,
oprom + i + sizeof(oem_hdr),
copy_len);
/* calculate checksum */
tmp = (u8 *)&oem_hdr;
for (j = 0, sum = 0; j < sizeof(oem_hdr); j++, tmp++)
sum += *tmp;
tmp = (u8 *)rom;
for (j = 0; j < sizeof(*rom); j++, tmp++)
sum += *tmp;
if (sum != 0) {
dev_warn(&pdev->dev,
"OEM table checksum failed\n");
continue;
}
/* keep going if that's not the oem param table */
if (memcmp(rom->hdr.signature,
ISCI_ROM_SIG,
ISCI_ROM_SIG_SIZE) != 0)
continue;
dev_info(&pdev->dev,
"OEM parameter table found in OROM\n");
break;
}
}
if (i >= len) {
dev_err(&pdev->dev, "oprom parse error\n");
devm_kfree(&pdev->dev, rom);
rom = NULL;
}
pci_unmap_biosrom(oprom);
return rom;
}
enum sci_status isci_parse_oem_parameters(struct sci_oem_params *oem,
struct isci_orom *orom, int scu_index)
{
/* check for valid inputs */
if (scu_index < 0 || scu_index >= SCI_MAX_CONTROLLERS ||
scu_index > orom->hdr.num_elements || !oem)
return -EINVAL;
*oem = orom->ctrl[scu_index];
return 0;
}
struct isci_orom *isci_request_firmware(struct pci_dev *pdev, const struct firmware *fw)
{
struct isci_orom *orom = NULL, *data;
int i, j;
if (request_firmware(&fw, ISCI_FW_NAME, &pdev->dev) != 0)
return NULL;
if (fw->size < sizeof(*orom))
goto out;
data = (struct isci_orom *)fw->data;
if (strncmp(ISCI_ROM_SIG, data->hdr.signature,
strlen(ISCI_ROM_SIG)) != 0)
goto out;
orom = devm_kzalloc(&pdev->dev, fw->size, GFP_KERNEL);
if (!orom)
goto out;
memcpy(orom, fw->data, fw->size);
if (is_c0(pdev))
goto out;
/*
* deprecated: override default amp_control for pre-preproduction
* silicon revisions
*/
for (i = 0; i < ARRAY_SIZE(orom->ctrl); i++)
for (j = 0; j < ARRAY_SIZE(orom->ctrl[i].phys); j++) {
orom->ctrl[i].phys[j].afe_tx_amp_control0 = 0xe7c03;
orom->ctrl[i].phys[j].afe_tx_amp_control1 = 0xe7c03;
orom->ctrl[i].phys[j].afe_tx_amp_control2 = 0xe7c03;
orom->ctrl[i].phys[j].afe_tx_amp_control3 = 0xe7c03;
}
out:
release_firmware(fw);
return orom;
}
static struct efi *get_efi(void)
{
#ifdef CONFIG_EFI
return &efi;
#else
return NULL;
#endif
}
struct isci_orom *isci_get_efi_var(struct pci_dev *pdev)
{
efi_status_t status;
struct isci_orom *rom;
struct isci_oem_hdr *oem_hdr;
u8 *tmp, sum;
int j;
unsigned long data_len;
u8 *efi_data;
u32 efi_attrib = 0;
data_len = 1024;
efi_data = devm_kzalloc(&pdev->dev, data_len, GFP_KERNEL);
if (!efi_data) {
dev_warn(&pdev->dev,
"Unable to allocate memory for EFI data\n");
return NULL;
}
rom = (struct isci_orom *)(efi_data + sizeof(struct isci_oem_hdr));
if (get_efi())
status = get_efi()->get_variable(isci_efivar_name,
&ISCI_EFI_VENDOR_GUID,
&efi_attrib,
&data_len,
efi_data);
else
status = EFI_NOT_FOUND;
if (status != EFI_SUCCESS) {
dev_warn(&pdev->dev,
"Unable to obtain EFI var data for OEM parms\n");
return NULL;
}
oem_hdr = (struct isci_oem_hdr *)efi_data;
if (memcmp(oem_hdr->sig, ISCI_OEM_SIG, ISCI_OEM_SIG_SIZE) != 0) {
dev_warn(&pdev->dev,
"Invalid OEM header signature\n");
return NULL;
}
/* calculate checksum */
tmp = (u8 *)efi_data;
for (j = 0, sum = 0; j < (sizeof(*oem_hdr) + sizeof(*rom)); j++, tmp++)
sum += *tmp;
if (sum != 0) {
dev_warn(&pdev->dev,
"OEM table checksum failed\n");
return NULL;
}
if (memcmp(rom->hdr.signature,
ISCI_ROM_SIG,
ISCI_ROM_SIG_SIZE) != 0) {
dev_warn(&pdev->dev,
"Invalid OEM table signature\n");
return NULL;
}
return rom;
}
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......@@ -82,6 +82,7 @@ fw-shipped-$(CONFIG_SERIAL_8250_CS) += cis/MT5634ZLX.cis cis/RS-COM-2P.cis \
fw-shipped-$(CONFIG_PCMCIA_SMC91C92) += ositech/Xilinx7OD.bin
fw-shipped-$(CONFIG_SCSI_ADVANSYS) += advansys/mcode.bin advansys/38C1600.bin \
advansys/3550.bin advansys/38C0800.bin
fw-shipped-$(CONFIG_SCSI_ISCI) += isci/isci_firmware.bin
fw-shipped-$(CONFIG_SCSI_QLOGIC_1280) += qlogic/1040.bin qlogic/1280.bin \
qlogic/12160.bin
fw-shipped-$(CONFIG_SCSI_QLOGICPTI) += qlogic/isp1000.bin
......
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:10005000FFFFCF5F0100000008DD0B0000FC0F0078
:10006000097C0B006EFC0A00FFFFCF5F010000005F
:1000700008DD0B0000FC0F00097C0B006EFC0A0081
:100080000101000000000000FFFFCF5F0200000040
:1000900008DD0B0000FC0F00097C0B006EFC0A0061
:1000A000FFFFCF5F0200000008DD0B0000FC0F0027
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:1000D000FFFFCF5F0200000008DD0B0000FC0F00F7
:0800E000097C0B006EFC0A0014
:00000001FF
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