freebsd-dev/sys/dev/twa/tw_cl_init.c
Vinod Kashyap f0c1dee27f The latest release of the FreeBSD driver (twa) for
3ware's 9xxx series controllers.  This corresponds to
the 9.2 release (for FreeBSD 5.2.1) on the 3ware website.

Highlights of this release are:

1. The driver has been re-architected to use a "Common Layer"
    (all tw_cl* files), which is a consolidation of all OS-independent
    parts of the driver.  The FreeBSD OS specific portions of the
    driver go into an "OS Layer" (all tw_osl* files).
    This re-architecture is to achieve better maintainability, consistency
    of behavior across OS's, and better portability to new OS's (drivers
    for new OS's can be written by just adding an OS Layer that's specific
    to the OS, by complying to a "Common Layer Programming Interface" API.

2. The driver takes advantage of multiple processors.

3. The driver has a new firmware image bundled, the new features of which
   include Online Capacity Expansion and multi-lun support, among others.
   More details about 3ware's 9.2 release can be found here:
   http://www.3ware.com/download/Escalade9000Series/9.2/9.2_Release_Notes_Web.pdf

Since the Common Layer is used across OS's, the FreeBSD specific include
path for header files (/sys/dev/twa) is not part of the #include pre-processor
directive in any of the source files.  For being able to integrate twa into
the kernel despite this, Makefile.<arch> has been changed to add the include
path to CFLAGS.

Reviewed by: scottl
2005-04-12 22:07:11 +00:00

1105 lines
34 KiB
C

/*
* Copyright (c) 2004-05 Applied Micro Circuits Corporation.
* Copyright (c) 2004-05 Vinod Kashyap
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
/*
* AMCC'S 3ware driver for 9000 series storage controllers.
*
* Author: Vinod Kashyap
*/
/*
* Common Layer initialization functions.
*/
#include "tw_osl_share.h"
#include "tw_cl_share.h"
#include "tw_cl_fwif.h"
#include "tw_cl_ioctl.h"
#include "tw_cl.h"
#include "tw_cl_externs.h"
#include "tw_osl_ioctl.h"
/*
* Function name: tw_cl_ctlr_supported
* Description: Determines if a controller is supported.
*
* Input: vendor_id -- vendor id of the controller
* device_id -- device id of the controller
* Output: None
* Return value: TW_CL_TRUE-- controller supported
* TW_CL_FALSE-- controller not supported
*/
TW_INT32
tw_cl_ctlr_supported(TW_INT32 vendor_id, TW_INT32 device_id)
{
if ((vendor_id == TW_CL_VENDOR_ID) && (device_id == TW_CL_DEVICE_ID_9K))
return(TW_CL_TRUE);
return(TW_CL_FALSE);
}
/*
* Function name: tw_cl_get_mem_requirements
* Description: Provides info about Common Layer requirements for a
* controller, given the controller type (in 'flags').
* Input: ctlr_handle -- controller handle
* flags -- more info passed by the OS Layer
* max_simult_reqs -- maximum # of simultaneous
* requests that the OS Layer expects
* the Common Layer to support
* max_aens -- maximun # of AEN's needed to be supported
* Output: alignment -- alignment needed for all DMA'able
* buffers
* sg_size_factor -- every SG element should have a size
* that's a multiple of this number
* non_dma_mem_size -- # of bytes of memory needed for
* non-DMA purposes
* dma_mem_size -- # of bytes of DMA'able memory needed
* flash_dma_mem_size -- # of bytes of DMA'able memory
* needed for firmware flash, if applicable
* per_req_dma_mem_size -- # of bytes of DMA'able memory
* needed per request, if applicable
* per_req_non_dma_mem_size -- # of bytes of memory needed
* per request for non-DMA purposes,
* if applicable
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_cl_get_mem_requirements(struct tw_cl_ctlr_handle *ctlr_handle,
TW_UINT32 flags, TW_INT32 max_simult_reqs, TW_INT32 max_aens,
TW_UINT32 *alignment, TW_UINT32 *sg_size_factor,
TW_UINT32 *non_dma_mem_size, TW_UINT32 *dma_mem_size
#ifdef TW_OSL_FLASH_FIRMWARE
, TW_UINT32 *flash_dma_mem_size
#endif /* TW_OSL_FLASH_FIRMWARE */
#ifdef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
, TW_UINT32 *per_req_dma_mem_size
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
#ifdef TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST
, TW_UINT32 *per_req_non_dma_mem_size
#endif /* TW_OSL_N0N_DMA_MEM_ALLOC_PER_REQUEST */
)
{
if (max_simult_reqs > TW_CL_MAX_SIMULTANEOUS_REQUESTS) {
tw_cl_create_event(ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1000, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Too many simultaneous requests to support!",
"requested = %d, supported = %d, error = %d\n",
max_simult_reqs, TW_CL_MAX_SIMULTANEOUS_REQUESTS,
TW_OSL_EBIG);
return(TW_OSL_EBIG);
}
*alignment = TWA_ALIGNMENT;
*sg_size_factor = TWA_SG_ELEMENT_SIZE_FACTOR;
/*
* Total non-DMA memory needed is the sum total of memory needed for
* the controller context, request packets (including the 1 needed for
* CL internal requests), and event packets.
*/
#ifdef TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST
*non_dma_mem_size = sizeof(struct tw_cli_ctlr_context) +
(sizeof(struct tw_cli_req_context)) +
(sizeof(struct tw_cl_event_packet) * max_aens);
*per_req_non_dma_mem_size = sizeof(struct tw_cli_req_context);
#else /* TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST */
*non_dma_mem_size = sizeof(struct tw_cli_ctlr_context) +
(sizeof(struct tw_cli_req_context) * (max_simult_reqs + 1)) +
(sizeof(struct tw_cl_event_packet) * max_aens);
#endif /* TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST */
/*
* Total DMA'able memory needed is the sum total of memory needed for
* all command packets (including the 1 needed for CL internal
* requests), and memory needed to hold the payload for internal
* requests.
*/
#ifdef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
*dma_mem_size = sizeof(struct tw_cl_command_packet) +
TW_CLI_SECTOR_SIZE;
*per_req_dma_mem_size = sizeof(struct tw_cl_command_packet);
#else /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
*dma_mem_size = (sizeof(struct tw_cl_command_packet) *
(max_simult_reqs + 1)) + (TW_CLI_SECTOR_SIZE);
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
#ifdef TW_OSL_FLASH_FIRMWARE
/* Memory needed to hold the firmware image while flashing. */
*flash_dma_mem_size =
((tw_cli_fw_img_size / TW_CLI_NUM_FW_IMAGE_CHUNKS) +
(TWA_SG_ELEMENT_SIZE_FACTOR - 1)) &
~(TWA_SG_ELEMENT_SIZE_FACTOR - 1);
#endif /* TW_OSL_FLASH_FIRMWARE */
return(0);
}
/*
* Function name: tw_cl_init_ctlr
* Description: Initializes driver data structures for the controller.
*
* Input: ctlr_handle -- controller handle
* flags -- more info passed by the OS Layer
* max_simult_reqs -- maximum # of simultaneous requests
* that the OS Layer expects the Common
* Layer to support
* max_aens -- maximun # of AEN's needed to be supported
* non_dma_mem -- ptr to allocated non-DMA memory
* dma_mem -- ptr to allocated DMA'able memory
* dma_mem_phys -- physical address of dma_mem
* flash_dma_mem -- ptr to allocated DMA'able memory
* needed for firmware flash, if applicable
* flash_dma_mem_phys -- physical address of flash_dma_mem
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_cl_init_ctlr(struct tw_cl_ctlr_handle *ctlr_handle, TW_UINT32 flags,
TW_INT32 max_simult_reqs, TW_INT32 max_aens, TW_VOID *non_dma_mem,
TW_VOID *dma_mem, TW_UINT64 dma_mem_phys
#ifdef TW_OSL_FLASH_FIRMWARE
, TW_VOID *flash_dma_mem,
TW_UINT64 flash_dma_mem_phys
#endif /* TW_OSL_FLASH_FIRMWARE */
)
{
struct tw_cli_ctlr_context *ctlr;
struct tw_cli_req_context *req;
TW_UINT8 *free_non_dma_mem;
TW_INT32 error = TW_OSL_ESUCCESS;
TW_INT32 i;
tw_cli_dbg_printf(3, ctlr_handle, tw_osl_cur_func(), "entered");
if (flags & TW_CL_START_CTLR_ONLY) {
ctlr = (struct tw_cli_ctlr_context *)
(ctlr_handle->cl_ctlr_ctxt);
goto start_ctlr;
}
if (max_simult_reqs > TW_CL_MAX_SIMULTANEOUS_REQUESTS) {
tw_cl_create_event(ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1000, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Too many simultaneous requests to support!",
"requested = %d, supported = %d, error = %d\n",
max_simult_reqs, TW_CL_MAX_SIMULTANEOUS_REQUESTS,
TW_OSL_EBIG);
return(TW_OSL_EBIG);
}
if ((non_dma_mem == TW_CL_NULL) || (dma_mem == TW_CL_NULL)
#ifdef TW_OSL_FLASH_FIRMWARE
|| ((flags & TW_CL_FLASH_FIRMWARE) ?
(flash_dma_mem == TW_CL_NULL) : TW_CL_FALSE)
#endif /* TW_OSL_FLASH_FIRMWARE */
) {
tw_cl_create_event(ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1001, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Insufficient memory for Common Layer's internal usage",
"error = %d\n", TW_OSL_ENOMEM);
return(TW_OSL_ENOMEM);
}
#ifdef TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST
tw_osl_memzero(non_dma_mem, sizeof(struct tw_cli_ctlr_context) +
sizeof(struct tw_cli_req_context) +
(sizeof(struct tw_cl_event_packet) * max_aens));
#else /* TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST */
tw_osl_memzero(non_dma_mem, sizeof(struct tw_cli_ctlr_context) +
(sizeof(struct tw_cli_req_context) * (max_simult_reqs + 1)) +
(sizeof(struct tw_cl_event_packet) * max_aens));
#endif /* TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST */
#ifdef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
tw_osl_memzero(dma_mem,
sizeof(struct tw_cl_command_packet) +
TW_CLI_SECTOR_SIZE);
#else /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
tw_osl_memzero(dma_mem,
(sizeof(struct tw_cl_command_packet) *
(max_simult_reqs + 1)) +
TW_CLI_SECTOR_SIZE);
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
free_non_dma_mem = (TW_UINT8 *)non_dma_mem;
ctlr = (struct tw_cli_ctlr_context *)free_non_dma_mem;
free_non_dma_mem += sizeof(struct tw_cli_ctlr_context);
ctlr_handle->cl_ctlr_ctxt = ctlr;
ctlr->ctlr_handle = ctlr_handle;
ctlr->max_simult_reqs = max_simult_reqs + 1;
ctlr->max_aens_supported = max_aens;
ctlr->flags = flags;
#ifdef TW_OSL_FLASH_FIRMWARE
ctlr->flash_dma_mem = flash_dma_mem;
ctlr->flash_dma_mem_phys = flash_dma_mem_phys;
#endif /* TW_OSL_FLASH_FIRMWARE */
/* Initialize queues of CL internal request context packets. */
tw_cli_req_q_init(ctlr, TW_CLI_FREE_Q);
tw_cli_req_q_init(ctlr, TW_CLI_BUSY_Q);
tw_cli_req_q_init(ctlr, TW_CLI_PENDING_Q);
tw_cli_req_q_init(ctlr, TW_CLI_COMPLETE_Q);
/* Initialize all locks used by CL. */
ctlr->gen_lock = &(ctlr->gen_lock_handle);
tw_osl_init_lock(ctlr_handle, "tw_cl_gen_lock", ctlr->gen_lock);
ctlr->io_lock = &(ctlr->io_lock_handle);
tw_osl_init_lock(ctlr_handle, "tw_cl_io_lock", ctlr->io_lock);
/*
* If 64 bit cmd pkt addresses are used, we will need to serialize
* writes to the hardware (across registers), since existing hardware
* will get confused if, for example, we wrote the low 32 bits of the
* cmd pkt address, followed by a response interrupt mask to the
* control register, followed by the high 32 bits of the cmd pkt
* address. It will then interpret the value written to the control
* register as the low cmd pkt address. So, for this case, we will
* only use one lock (io_lock) by making io_lock & intr_lock one and
* the same.
*/
if (ctlr->flags & TW_CL_64BIT_ADDRESSES)
ctlr->intr_lock = ctlr->io_lock;
else {
ctlr->intr_lock = &(ctlr->intr_lock_handle);
tw_osl_init_lock(ctlr_handle, "tw_cl_intr_lock",
ctlr->intr_lock);
}
/* Initialize CL internal request context packets. */
ctlr->req_ctxt_buf = (struct tw_cli_req_context *)free_non_dma_mem;
free_non_dma_mem += (sizeof(struct tw_cli_req_context) *
(
#ifndef TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST
max_simult_reqs +
#endif /* TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST */
1));
ctlr->cmd_pkt_buf = (struct tw_cl_command_packet *)dma_mem;
ctlr->cmd_pkt_phys = dma_mem_phys;
ctlr->internal_req_data = (TW_UINT8 *)
(ctlr->cmd_pkt_buf +
(
#ifndef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
max_simult_reqs +
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
1));
ctlr->internal_req_data_phys = ctlr->cmd_pkt_phys +
(sizeof(struct tw_cl_command_packet) *
(
#ifndef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
max_simult_reqs +
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
1));
for (i = 0;
i < (
#ifndef TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST
max_simult_reqs +
#endif /* TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST */
1); i++) {
req = &(ctlr->req_ctxt_buf[i]);
#ifndef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
req->cmd_pkt = &(ctlr->cmd_pkt_buf[i]);
req->cmd_pkt_phys = ctlr->cmd_pkt_phys +
(i * sizeof(struct tw_cl_command_packet));
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
req->request_id = i;
req->ctlr = ctlr;
#ifdef TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST
req->flags |= TW_CLI_REQ_FLAGS_INTERNAL;
#endif /* TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST */
/* Insert request into the free queue. */
tw_cli_req_q_insert_tail(req, TW_CLI_FREE_Q);
}
#ifdef TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST
ctlr->free_req_head = i - 1;
ctlr->free_req_tail = i - 1;
for (; i < (max_simult_reqs + 1); i++)
ctlr->free_req_ids[i - 1] = i;
ctlr->num_free_req_ids = max_simult_reqs;
#endif /* TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST */
/* Initialize the AEN queue. */
ctlr->aen_queue = (struct tw_cl_event_packet *)free_non_dma_mem;
start_ctlr:
/*
* Disable interrupts. Interrupts will be enabled in tw_cli_start_ctlr
* (only) if initialization succeeded.
*/
tw_cli_disable_interrupts(ctlr);
/* Initialize the controller. */
if ((error = tw_cli_start_ctlr(ctlr))) {
/* Soft reset the controller, and try one more time. */
tw_cl_create_event(ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1002, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Controller initialization failed. Retrying...",
"error = %d\n", error);
if ((error = tw_cli_soft_reset(ctlr))) {
tw_cl_create_event(ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1003, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Controller soft reset failed",
"error = %d\n", error);
return(error);
} else if ((error = tw_cli_start_ctlr(ctlr))) {
tw_cl_create_event(ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1004, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Controller initialization retry failed",
"error = %d\n", error);
return(error);
}
}
/* Notify some info about the controller to the OSL. */
tw_cli_notify_ctlr_info(ctlr);
/* Mark the controller as active. */
ctlr->state |= TW_CLI_CTLR_STATE_ACTIVE;
return(error);
}
#ifdef TW_OSL_FLASH_FIRMWARE
/*
* Function name: tw_cli_flash_firmware
* Description: Flashes bundled firmware image onto controller.
*
* Input: ctlr -- ptr to per ctlr structure
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_cli_flash_firmware(struct tw_cli_ctlr_context *ctlr)
{
struct tw_cli_req_context *req;
struct tw_cl_command_header *cmd_hdr;
struct tw_cl_command_download_firmware *cmd;
TW_UINT32 fw_img_chunk_size;
TW_UINT32 num_chunks;
TW_UINT32 this_chunk_size = 0;
TW_INT32 remaining_img_size = 0;
TW_INT32 hard_reset_needed = TW_CL_FALSE;
TW_INT32 error = TW_OSL_EGENFAILURE;
TW_UINT32 i;
tw_cli_dbg_printf(3, ctlr->ctlr_handle, tw_osl_cur_func(), "entered");
if ((req = tw_cli_get_request(ctlr
#ifdef TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST
, TW_CL_NULL
#endif /* TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST */
)) == TW_CL_NULL) {
/* No free request packets available. Can't proceed. */
error = TW_OSL_EBUSY;
goto out;
}
#ifdef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
req->cmd_pkt = ctlr->cmd_pkt_buf;
req->cmd_pkt_phys = ctlr->cmd_pkt_phys;
tw_osl_memzero(req->cmd_pkt,
sizeof(struct tw_cl_command_header) +
28 /* max bytes before sglist */);
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
req->flags |= TW_CLI_REQ_FLAGS_INTERNAL;
/*
* Determine amount of memory needed to hold a chunk of the
* firmware image.
*/
fw_img_chunk_size = ((tw_cli_fw_img_size / TW_CLI_NUM_FW_IMAGE_CHUNKS) +
(TWA_SG_ELEMENT_SIZE_FACTOR - 1)) &
~(TWA_SG_ELEMENT_SIZE_FACTOR - 1);
/* Calculate the actual number of chunks needed. */
num_chunks = (tw_cli_fw_img_size / fw_img_chunk_size) +
((tw_cli_fw_img_size % fw_img_chunk_size) ? 1 : 0);
req->data = ctlr->flash_dma_mem;
req->data_phys = ctlr->flash_dma_mem_phys;
remaining_img_size = tw_cli_fw_img_size;
cmd_hdr = &(req->cmd_pkt->cmd_hdr);
cmd = &(req->cmd_pkt->command.cmd_pkt_7k.download_fw);
for (i = 0; i < num_chunks; i++) {
/* Build a cmd pkt for downloading firmware. */
tw_osl_memzero(req->cmd_pkt,
sizeof(struct tw_cl_command_packet));
cmd_hdr->header_desc.size_header = 128;
/* sgl_offset (offset in dwords, to sg list) is 2. */
cmd->sgl_off__opcode =
BUILD_SGL_OFF__OPCODE(2, TWA_FW_CMD_DOWNLOAD_FIRMWARE);
cmd->request_id = (TW_UINT8)(TW_CL_SWAP16(req->request_id));
cmd->unit = 0;
cmd->status = 0;
cmd->flags = 0;
cmd->param = TW_CL_SWAP16(8); /* prom image */
if (i != (num_chunks - 1))
this_chunk_size = fw_img_chunk_size;
else /* last chunk */
this_chunk_size = remaining_img_size;
remaining_img_size -= this_chunk_size;
tw_osl_memcpy(req->data, tw_cli_fw_img + (i * fw_img_chunk_size),
this_chunk_size);
/*
* The next line will effect only the last chunk.
*/
req->length = (this_chunk_size +
(TWA_SG_ELEMENT_SIZE_FACTOR - 1)) &
~(TWA_SG_ELEMENT_SIZE_FACTOR - 1);
if (ctlr->flags & TW_CL_64BIT_ADDRESSES) {
((struct tw_cl_sg_desc64 *)(cmd->sgl))[0].address =
TW_CL_SWAP64(req->data_phys);
((struct tw_cl_sg_desc64 *)(cmd->sgl))[0].length =
TW_CL_SWAP32(req->length);
cmd->size = 2 + 3;
} else {
((struct tw_cl_sg_desc32 *)(cmd->sgl))[0].address =
TW_CL_SWAP32(req->data_phys);
((struct tw_cl_sg_desc32 *)(cmd->sgl))[0].length =
TW_CL_SWAP32(req->length);
cmd->size = 2 + 2;
}
error = tw_cli_submit_and_poll_request(req,
TW_CLI_REQUEST_TIMEOUT_PERIOD);
if (error) {
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1005, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Firmware flash request could not be posted",
"error = %d\n", error);
if (error == TW_OSL_ETIMEDOUT)
/* clean-up done by tw_cli_submit_and_poll_request */
return(error);
break;
}
error = cmd->status;
if (((i == (num_chunks - 1)) && (error)) ||
((i != (num_chunks - 1)) &&
((error = cmd_hdr->status_block.error) !=
TWA_ERROR_MORE_DATA))) {
/*
* It's either that download of the last chunk
* failed, or the download of one of the earlier
* chunks failed with an error other than
* TWA_ERROR_MORE_DATA. Report the error.
*/
tw_cli_create_ctlr_event(ctlr,
TW_CL_MESSAGE_SOURCE_CONTROLLER_ERROR,
cmd_hdr);
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1006, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Firmware flash failed",
"cmd = 0x%x, chunk # %d, cmd status = %d",
GET_OPCODE(cmd->sgl_off__opcode),
i, cmd->status);
/*
* Make a note to hard reset the controller,
* so that it doesn't wait for the remaining
* chunks. Don't call the hard reset function
* right here, since we have committed to having
* only 1 active internal request at a time, and
* this request has not yet been freed.
*/
hard_reset_needed = TW_CL_TRUE;
break;
}
} /* for */
out:
if (req)
tw_cli_req_q_insert_tail(req, TW_CLI_FREE_Q);
if (hard_reset_needed)
tw_cli_hard_reset(ctlr);
return(error);
}
/*
* Function name: tw_cli_hard_reset
* Description: Hard resets the controller.
*
* Input: ctlr -- ptr to per ctlr structure
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_cli_hard_reset(struct tw_cli_ctlr_context *ctlr)
{
struct tw_cli_req_context *req;
struct tw_cl_command_reset_firmware *cmd;
TW_INT32 error;
tw_cli_dbg_printf(3, ctlr->ctlr_handle, tw_osl_cur_func(), "entered");
if ((req = tw_cli_get_request(ctlr
#ifdef TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST
, TW_CL_NULL
#endif /* TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST */
)) == TW_CL_NULL)
return(TW_OSL_EBUSY);
#ifdef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
req->cmd_pkt = ctlr->cmd_pkt_buf;
req->cmd_pkt_phys = ctlr->cmd_pkt_phys;
tw_osl_memzero(req->cmd_pkt,
sizeof(struct tw_cl_command_header) +
28 /* max bytes before sglist */);
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
req->flags |= TW_CLI_REQ_FLAGS_INTERNAL;
/* Build a cmd pkt for sending down the hard reset command. */
req->cmd_pkt->cmd_hdr.header_desc.size_header = 128;
cmd = &(req->cmd_pkt->command.cmd_pkt_7k.reset_fw);
cmd->res1__opcode =
BUILD_RES__OPCODE(0, TWA_FW_CMD_HARD_RESET_FIRMWARE);
cmd->size = 2;
cmd->request_id = (TW_UINT8)(TW_CL_SWAP16(req->request_id));
cmd->unit = 0;
cmd->status = 0;
cmd->flags = 0;
cmd->param = 0; /* don't reload FPGA logic */
req->data = TW_CL_NULL;
req->length = 0;
error = tw_cli_submit_and_poll_request(req,
TW_CLI_REQUEST_TIMEOUT_PERIOD);
if (error) {
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1007, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Hard reset request could not be posted",
"error = %d", error);
if (error == TW_OSL_ETIMEDOUT)
/* clean-up done by tw_cli_submit_and_poll_request */
return(error);
goto out;
}
if ((error = cmd->status)) {
tw_cli_create_ctlr_event(ctlr,
TW_CL_MESSAGE_SOURCE_CONTROLLER_ERROR,
&(req->cmd_pkt->cmd_hdr));
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1008, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Hard reset request failed",
"error = %d", error);
}
out:
if (req)
tw_cli_req_q_insert_tail(req, TW_CLI_FREE_Q);
return(error);
}
#endif /* TW_OSL_FLASH_FIRMWARE */
/*
* Function name: tw_cli_start_ctlr
* Description: Establishes a logical connection with the controller.
* If bundled with firmware, determines whether or not
* to flash firmware, based on arch_id, fw SRL (Spec.
* Revision Level), branch & build #'s. Also determines
* whether or not the driver is compatible with the
* firmware on the controller, before proceeding to work
* with it.
*
* Input: ctlr -- ptr to per ctlr structure
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_cli_start_ctlr(struct tw_cli_ctlr_context *ctlr)
{
TW_UINT16 fw_on_ctlr_srl = 0;
TW_UINT16 fw_on_ctlr_arch_id = 0;
TW_UINT16 fw_on_ctlr_branch = 0;
TW_UINT16 fw_on_ctlr_build = 0;
TW_UINT32 init_connect_result = 0;
TW_INT32 error = TW_OSL_ESUCCESS;
#ifdef TW_OSL_FLASH_FIRMWARE
TW_INT8 fw_flashed = TW_CL_FALSE;
TW_INT8 fw_flash_failed = TW_CL_FALSE;
#endif /* TW_OSL_FLASH_FIRMWARE */
tw_cli_dbg_printf(3, ctlr->ctlr_handle, tw_osl_cur_func(), "entered");
/* Wait for the controller to become ready. */
if ((error = tw_cli_poll_status(ctlr,
TWA_STATUS_MICROCONTROLLER_READY,
TW_CLI_REQUEST_TIMEOUT_PERIOD))) {
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1009, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Microcontroller not ready",
"error = %d", error);
return(error);
}
/* Drain the response queue. */
if ((error = tw_cli_drain_response_queue(ctlr))) {
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x100A, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Can't drain response queue",
"error = %d", error);
return(error);
}
/* Establish a logical connection with the controller. */
if ((error = tw_cli_init_connection(ctlr,
(TW_UINT16)(ctlr->max_simult_reqs),
TWA_EXTENDED_INIT_CONNECT, TWA_CURRENT_FW_SRL,
TWA_9000_ARCH_ID, TWA_CURRENT_FW_BRANCH,
TWA_CURRENT_FW_BUILD, &fw_on_ctlr_srl,
&fw_on_ctlr_arch_id, &fw_on_ctlr_branch,
&fw_on_ctlr_build, &init_connect_result))) {
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x100B, 0x2, TW_CL_SEVERITY_WARNING_STRING,
"Can't initialize connection in current mode",
"error = %d", error);
return(error);
}
#ifdef TW_OSL_FLASH_FIRMWARE
if ((ctlr->flags & TW_CL_FLASH_FIRMWARE) &&
(init_connect_result & TWA_BUNDLED_FW_SAFE_TO_FLASH) &&
(init_connect_result & TWA_CTLR_FW_RECOMMENDS_FLASH)) {
/*
* The bundled firmware is safe to flash, and the firmware
* on the controller recommends a flash. So, flash!
*/
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x100C, 0x3, TW_CL_SEVERITY_INFO_STRING,
"Flashing bundled firmware...",
" ");
if ((error = tw_cli_flash_firmware(ctlr))) {
fw_flash_failed = TW_CL_TRUE;
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x100D, 0x2, TW_CL_SEVERITY_WARNING_STRING,
"Unable to flash bundled firmware. "
"Attempting to work with fw on ctlr...",
" ");
} else {
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x100E, 0x3, TW_CL_SEVERITY_INFO_STRING,
"Successfully flashed bundled firmware",
" ");
fw_flashed = TW_CL_TRUE;
}
}
if (fw_flashed) {
/* The firmware was flashed. Have the new image loaded */
error = tw_cli_hard_reset(ctlr);
if (error)
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x100F, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Could not reset controller after flash!",
" ");
else /* Go through initialization again. */
error = tw_cli_start_ctlr(ctlr);
/*
* If hard reset of controller failed, we need to return.
* Otherwise, the above recursive call to tw_cli_start_ctlr
* will have completed the rest of the initialization (starting
* from tw_cli_drain_aen_queue below). Don't do it again.
* Just return.
*/
return(error);
} else
#endif /* TW_OSL_FLASH_FIRMWARE */
{
/*
* Either we are not bundled with a firmware image, or
* the bundled firmware is not safe to flash,
* or flash failed for some reason. See if we can at
* least work with the firmware on the controller in the
* current mode.
*/
if (init_connect_result & TWA_CTLR_FW_COMPATIBLE) {
/* Yes, we can. Make note of the operating mode. */
if (init_connect_result & TWA_CTLR_FW_SAME_OR_NEWER) {
ctlr->working_srl = TWA_CURRENT_FW_SRL;
ctlr->working_branch = TWA_CURRENT_FW_BRANCH;
ctlr->working_build = TWA_CURRENT_FW_BUILD;
} else {
ctlr->working_srl = fw_on_ctlr_srl;
ctlr->working_branch = fw_on_ctlr_branch;
ctlr->working_build = fw_on_ctlr_build;
}
} else {
/*
* No, we can't. See if we can at least work with
* it in the base mode. We should never come here
* if firmware has just been flashed.
*/
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1010, 0x2, TW_CL_SEVERITY_WARNING_STRING,
"Driver/Firmware mismatch. "
"Negotiating for base level...",
" ");
if ((error = tw_cli_init_connection(ctlr,
(TW_UINT16)(ctlr->max_simult_reqs),
TWA_EXTENDED_INIT_CONNECT,
TWA_BASE_FW_SRL, TWA_9000_ARCH_ID,
TWA_BASE_FW_BRANCH, TWA_BASE_FW_BUILD,
&fw_on_ctlr_srl, &fw_on_ctlr_arch_id,
&fw_on_ctlr_branch, &fw_on_ctlr_build,
&init_connect_result))) {
tw_cl_create_event(ctlr->ctlr_handle,
TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1011, 0x1,
TW_CL_SEVERITY_ERROR_STRING,
"Can't initialize connection in "
"base mode",
" ");
return(error);
}
if (!(init_connect_result & TWA_CTLR_FW_COMPATIBLE)) {
/*
* The firmware on the controller is not even
* compatible with our base mode. We cannot
* work with it. Bail...
*/
#ifdef TW_OSL_FLASH_FIRMWARE
if (fw_flash_failed)
tw_cl_create_event(ctlr->ctlr_handle,
TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1012, 0x1,
TW_CL_SEVERITY_ERROR_STRING,
"Incompatible firmware on controller"
"...and could not flash bundled "
"firmware",
" ");
else
tw_cl_create_event(ctlr->ctlr_handle,
TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1013, 0x1,
TW_CL_SEVERITY_ERROR_STRING,
"Incompatible firmware on controller"
"...and bundled firmware not safe to "
"flash",
" ");
#endif /* TW_OSL_FLASH_FIRMWARE */
return(1);
}
/*
* We can work with this firmware, but only in
* base mode.
*/
ctlr->working_srl = TWA_BASE_FW_SRL;
ctlr->working_branch = TWA_BASE_FW_BRANCH;
ctlr->working_build = TWA_BASE_FW_BUILD;
ctlr->operating_mode = TWA_BASE_MODE;
}
}
/* Drain the AEN queue */
if ((error = tw_cli_drain_aen_queue(ctlr)))
/*
* We will just print that we couldn't drain the AEN queue.
* There's no need to bail out.
*/
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1014, 0x2, TW_CL_SEVERITY_WARNING_STRING,
"Can't drain AEN queue",
"error = %d", error);
/* Enable interrupts. */
tw_cli_enable_interrupts(ctlr);
return(TW_OSL_ESUCCESS);
}
/*
* Function name: tw_cl_shutdown_ctlr
* Description: Closes logical connection with the controller.
*
* Input: ctlr -- ptr to per ctlr structure
* flags -- more info passed by the OS Layer
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_cl_shutdown_ctlr(struct tw_cl_ctlr_handle *ctlr_handle, TW_UINT32 flags)
{
struct tw_cli_ctlr_context *ctlr =
(struct tw_cli_ctlr_context *)(ctlr_handle->cl_ctlr_ctxt);
TW_INT32 error;
tw_cli_dbg_printf(3, ctlr_handle, tw_osl_cur_func(), "entered");
/*
* Mark the controller as inactive, disable any further interrupts,
* and notify the controller that we are going down.
*/
ctlr->state &= ~TW_CLI_CTLR_STATE_ACTIVE;
tw_cli_disable_interrupts(ctlr);
/* Let the controller know that we are going down. */
if ((error = tw_cli_init_connection(ctlr, TWA_SHUTDOWN_MESSAGE_CREDITS,
0, 0, 0, 0, 0, TW_CL_NULL, TW_CL_NULL, TW_CL_NULL,
TW_CL_NULL, TW_CL_NULL)))
tw_cl_create_event(ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1015, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Can't close connection with controller",
"error = %d", error);
if (flags & TW_CL_STOP_CTLR_ONLY)
goto ret;
/* Destroy all locks used by CL. */
tw_osl_destroy_lock(ctlr_handle, ctlr->gen_lock);
tw_osl_destroy_lock(ctlr_handle, ctlr->io_lock);
if (!(ctlr->flags & TW_CL_64BIT_ADDRESSES))
tw_osl_destroy_lock(ctlr_handle, ctlr->intr_lock);
ret:
return(error);
}
/*
* Function name: tw_cli_init_connection
* Description: Sends init_connection cmd to firmware
*
* Input: ctlr -- ptr to per ctlr structure
* message_credits -- max # of requests that we might send
* down simultaneously. This will be
* typically set to 256 at init-time or
* after a reset, and to 1 at shutdown-time
* set_features -- indicates if we intend to use 64-bit
* sg, also indicates if we want to do a
* basic or an extended init_connection;
*
* Note: The following input/output parameters are valid, only in case of an
* extended init_connection:
*
* current_fw_srl -- srl of fw we are bundled
* with, if any; 0 otherwise
* current_fw_arch_id -- arch_id of fw we are bundled
* with, if any; 0 otherwise
* current_fw_branch -- branch # of fw we are bundled
* with, if any; 0 otherwise
* current_fw_build -- build # of fw we are bundled
* with, if any; 0 otherwise
* Output: fw_on_ctlr_srl -- srl of fw on ctlr
* fw_on_ctlr_arch_id -- arch_id of fw on ctlr
* fw_on_ctlr_branch -- branch # of fw on ctlr
* fw_on_ctlr_build -- build # of fw on ctlr
* init_connect_result -- result bitmap of fw response
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_cli_init_connection(struct tw_cli_ctlr_context *ctlr,
TW_UINT16 message_credits, TW_UINT32 set_features,
TW_UINT16 current_fw_srl, TW_UINT16 current_fw_arch_id,
TW_UINT16 current_fw_branch, TW_UINT16 current_fw_build,
TW_UINT16 *fw_on_ctlr_srl, TW_UINT16 *fw_on_ctlr_arch_id,
TW_UINT16 *fw_on_ctlr_branch, TW_UINT16 *fw_on_ctlr_build,
TW_UINT32 *init_connect_result)
{
struct tw_cli_req_context *req;
struct tw_cl_command_init_connect *init_connect;
TW_INT32 error = TW_OSL_EBUSY;
tw_cli_dbg_printf(3, ctlr->ctlr_handle, tw_osl_cur_func(), "entered");
/* Get a request packet. */
if ((req = tw_cli_get_request(ctlr
#ifdef TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST
, TW_CL_NULL
#endif /* TW_OSL_NON_DMA_MEM_ALLOC_PER_REQUEST */
)) == TW_CL_NULL)
goto out;
#ifdef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
req->cmd_pkt = ctlr->cmd_pkt_buf;
req->cmd_pkt_phys = ctlr->cmd_pkt_phys;
tw_osl_memzero(req->cmd_pkt,
sizeof(struct tw_cl_command_header) +
28 /* max bytes before sglist */);
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
req->flags |= TW_CLI_REQ_FLAGS_INTERNAL;
/* Build the cmd pkt. */
init_connect = &(req->cmd_pkt->command.cmd_pkt_7k.init_connect);
req->cmd_pkt->cmd_hdr.header_desc.size_header = 128;
init_connect->res1__opcode =
BUILD_RES__OPCODE(0, TWA_FW_CMD_INIT_CONNECTION);
init_connect->request_id =
(TW_UINT8)(TW_CL_SWAP16(req->request_id));
init_connect->message_credits = TW_CL_SWAP16(message_credits);
init_connect->features = TW_CL_SWAP32(set_features);
if (ctlr->flags & TW_CL_64BIT_ADDRESSES)
init_connect->features |= TWA_64BIT_SG_ADDRESSES;
if (set_features & TWA_EXTENDED_INIT_CONNECT) {
/*
* Fill in the extra fields needed for an extended
* init_connect.
*/
init_connect->size = 6;
init_connect->fw_srl = TW_CL_SWAP16(current_fw_srl);
init_connect->fw_arch_id = TW_CL_SWAP16(current_fw_arch_id);
init_connect->fw_branch = TW_CL_SWAP16(current_fw_branch);
init_connect->fw_build = TW_CL_SWAP16(current_fw_build);
} else
init_connect->size = 3;
/* Submit the command, and wait for it to complete. */
error = tw_cli_submit_and_poll_request(req,
TW_CLI_REQUEST_TIMEOUT_PERIOD);
if (error == TW_OSL_ETIMEDOUT)
/* Clean-up done by tw_cli_submit_and_poll_request. */
return(error);
if (error)
goto out;
if ((error = init_connect->status)) {
tw_cli_create_ctlr_event(ctlr,
TW_CL_MESSAGE_SOURCE_CONTROLLER_ERROR,
&(req->cmd_pkt->cmd_hdr));
goto out;
}
if (set_features & TWA_EXTENDED_INIT_CONNECT) {
*fw_on_ctlr_srl = TW_CL_SWAP16(init_connect->fw_srl);
*fw_on_ctlr_arch_id = TW_CL_SWAP16(init_connect->fw_arch_id);
*fw_on_ctlr_branch = TW_CL_SWAP16(init_connect->fw_branch);
*fw_on_ctlr_build = TW_CL_SWAP16(init_connect->fw_build);
*init_connect_result = TW_CL_SWAP32(init_connect->result);
}
tw_cli_req_q_insert_tail(req, TW_CLI_FREE_Q);
return(error);
out:
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1016, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"init_connection failed",
"error = %d", error);
if (req)
tw_cli_req_q_insert_tail(req, TW_CLI_FREE_Q);
return(error);
}