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![Alex Dewar](/assets/img/avatar_default.png)
In a number of places in esas2r_ioctl.c, the void* returned from pci_alloc_consistent() is cast unnecessarily. Remove casts. Issue identified with Coccinelle. Link: https://lore.kernel.org/r/20200820181411.866057-1-alex.dewar90@gmail.com Signed-off-by: Alex Dewar <alex.dewar90@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2088 lines
51 KiB
C
2088 lines
51 KiB
C
/*
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* linux/drivers/scsi/esas2r/esas2r_ioctl.c
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* For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
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*
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* Copyright (c) 2001-2013 ATTO Technology, Inc.
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* (mailto:linuxdrivers@attotech.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* NO WARRANTY
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* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
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* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
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* solely responsible for determining the appropriateness of using and
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* distributing the Program and assumes all risks associated with its
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* exercise of rights under this Agreement, including but not limited to
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* the risks and costs of program errors, damage to or loss of data,
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* programs or equipment, and unavailability or interruption of operations.
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*
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* DISCLAIMER OF LIABILITY
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* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
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* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*/
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#include "esas2r.h"
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/*
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* Buffered ioctl handlers. A buffered ioctl is one which requires that we
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* allocate a DMA-able memory area to communicate with the firmware. In
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* order to prevent continually allocating and freeing consistent memory,
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* we will allocate a global buffer the first time we need it and re-use
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* it for subsequent ioctl calls that require it.
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*/
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u8 *esas2r_buffered_ioctl;
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dma_addr_t esas2r_buffered_ioctl_addr;
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u32 esas2r_buffered_ioctl_size;
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struct pci_dev *esas2r_buffered_ioctl_pcid;
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static DEFINE_SEMAPHORE(buffered_ioctl_semaphore);
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typedef int (*BUFFERED_IOCTL_CALLBACK)(struct esas2r_adapter *,
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struct esas2r_request *,
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struct esas2r_sg_context *,
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void *);
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typedef void (*BUFFERED_IOCTL_DONE_CALLBACK)(struct esas2r_adapter *,
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struct esas2r_request *, void *);
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struct esas2r_buffered_ioctl {
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struct esas2r_adapter *a;
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void *ioctl;
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u32 length;
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u32 control_code;
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u32 offset;
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BUFFERED_IOCTL_CALLBACK
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callback;
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void *context;
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BUFFERED_IOCTL_DONE_CALLBACK
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done_callback;
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void *done_context;
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};
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static void complete_fm_api_req(struct esas2r_adapter *a,
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struct esas2r_request *rq)
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{
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a->fm_api_command_done = 1;
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wake_up_interruptible(&a->fm_api_waiter);
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}
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/* Callbacks for building scatter/gather lists for FM API requests */
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static u32 get_physaddr_fm_api(struct esas2r_sg_context *sgc, u64 *addr)
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{
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struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter;
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int offset = sgc->cur_offset - a->save_offset;
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(*addr) = a->firmware.phys + offset;
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return a->firmware.orig_len - offset;
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}
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static u32 get_physaddr_fm_api_header(struct esas2r_sg_context *sgc, u64 *addr)
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{
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struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter;
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int offset = sgc->cur_offset - a->save_offset;
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(*addr) = a->firmware.header_buff_phys + offset;
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return sizeof(struct esas2r_flash_img) - offset;
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}
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/* Handle EXPRESS_IOCTL_RW_FIRMWARE ioctl with img_type = FW_IMG_FM_API. */
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static void do_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi)
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{
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struct esas2r_request *rq;
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if (mutex_lock_interruptible(&a->fm_api_mutex)) {
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fi->status = FI_STAT_BUSY;
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return;
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}
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rq = esas2r_alloc_request(a);
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if (rq == NULL) {
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fi->status = FI_STAT_BUSY;
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goto free_sem;
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}
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if (fi == &a->firmware.header) {
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a->firmware.header_buff = dma_alloc_coherent(&a->pcid->dev,
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(size_t)sizeof(
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struct
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esas2r_flash_img),
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(dma_addr_t *)&a->
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firmware.
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header_buff_phys,
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GFP_KERNEL);
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if (a->firmware.header_buff == NULL) {
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esas2r_debug("failed to allocate header buffer!");
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fi->status = FI_STAT_BUSY;
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goto free_req;
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}
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memcpy(a->firmware.header_buff, fi,
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sizeof(struct esas2r_flash_img));
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a->save_offset = a->firmware.header_buff;
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a->fm_api_sgc.get_phys_addr =
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(PGETPHYSADDR)get_physaddr_fm_api_header;
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} else {
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a->save_offset = (u8 *)fi;
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a->fm_api_sgc.get_phys_addr =
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(PGETPHYSADDR)get_physaddr_fm_api;
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}
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rq->comp_cb = complete_fm_api_req;
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a->fm_api_command_done = 0;
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a->fm_api_sgc.cur_offset = a->save_offset;
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if (!esas2r_fm_api(a, (struct esas2r_flash_img *)a->save_offset, rq,
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&a->fm_api_sgc))
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goto all_done;
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/* Now wait around for it to complete. */
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while (!a->fm_api_command_done)
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wait_event_interruptible(a->fm_api_waiter,
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a->fm_api_command_done);
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all_done:
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if (fi == &a->firmware.header) {
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memcpy(fi, a->firmware.header_buff,
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sizeof(struct esas2r_flash_img));
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dma_free_coherent(&a->pcid->dev,
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(size_t)sizeof(struct esas2r_flash_img),
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a->firmware.header_buff,
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(dma_addr_t)a->firmware.header_buff_phys);
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}
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free_req:
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esas2r_free_request(a, (struct esas2r_request *)rq);
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free_sem:
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mutex_unlock(&a->fm_api_mutex);
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return;
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}
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static void complete_nvr_req(struct esas2r_adapter *a,
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struct esas2r_request *rq)
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{
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a->nvram_command_done = 1;
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wake_up_interruptible(&a->nvram_waiter);
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}
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/* Callback for building scatter/gather lists for buffered ioctls */
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static u32 get_physaddr_buffered_ioctl(struct esas2r_sg_context *sgc,
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u64 *addr)
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{
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int offset = (u8 *)sgc->cur_offset - esas2r_buffered_ioctl;
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(*addr) = esas2r_buffered_ioctl_addr + offset;
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return esas2r_buffered_ioctl_size - offset;
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}
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static void complete_buffered_ioctl_req(struct esas2r_adapter *a,
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struct esas2r_request *rq)
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{
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a->buffered_ioctl_done = 1;
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wake_up_interruptible(&a->buffered_ioctl_waiter);
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}
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static u8 handle_buffered_ioctl(struct esas2r_buffered_ioctl *bi)
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{
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struct esas2r_adapter *a = bi->a;
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struct esas2r_request *rq;
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struct esas2r_sg_context sgc;
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u8 result = IOCTL_SUCCESS;
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if (down_interruptible(&buffered_ioctl_semaphore))
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return IOCTL_OUT_OF_RESOURCES;
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/* allocate a buffer or use the existing buffer. */
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if (esas2r_buffered_ioctl) {
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if (esas2r_buffered_ioctl_size < bi->length) {
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/* free the too-small buffer and get a new one */
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dma_free_coherent(&a->pcid->dev,
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(size_t)esas2r_buffered_ioctl_size,
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esas2r_buffered_ioctl,
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esas2r_buffered_ioctl_addr);
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goto allocate_buffer;
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}
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} else {
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allocate_buffer:
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esas2r_buffered_ioctl_size = bi->length;
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esas2r_buffered_ioctl_pcid = a->pcid;
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esas2r_buffered_ioctl = dma_alloc_coherent(&a->pcid->dev,
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(size_t)
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esas2r_buffered_ioctl_size,
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&
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esas2r_buffered_ioctl_addr,
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GFP_KERNEL);
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}
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if (!esas2r_buffered_ioctl) {
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esas2r_log(ESAS2R_LOG_CRIT,
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"could not allocate %d bytes of consistent memory "
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"for a buffered ioctl!",
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bi->length);
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esas2r_debug("buffered ioctl alloc failure");
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result = IOCTL_OUT_OF_RESOURCES;
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goto exit_cleanly;
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}
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memcpy(esas2r_buffered_ioctl, bi->ioctl, bi->length);
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rq = esas2r_alloc_request(a);
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if (rq == NULL) {
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esas2r_log(ESAS2R_LOG_CRIT,
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"could not allocate an internal request");
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result = IOCTL_OUT_OF_RESOURCES;
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esas2r_debug("buffered ioctl - no requests");
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goto exit_cleanly;
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}
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a->buffered_ioctl_done = 0;
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rq->comp_cb = complete_buffered_ioctl_req;
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sgc.cur_offset = esas2r_buffered_ioctl + bi->offset;
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sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_buffered_ioctl;
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sgc.length = esas2r_buffered_ioctl_size;
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if (!(*bi->callback)(a, rq, &sgc, bi->context)) {
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/* completed immediately, no need to wait */
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a->buffered_ioctl_done = 0;
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goto free_andexit_cleanly;
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}
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/* now wait around for it to complete. */
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while (!a->buffered_ioctl_done)
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wait_event_interruptible(a->buffered_ioctl_waiter,
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a->buffered_ioctl_done);
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free_andexit_cleanly:
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if (result == IOCTL_SUCCESS && bi->done_callback)
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(*bi->done_callback)(a, rq, bi->done_context);
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esas2r_free_request(a, rq);
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exit_cleanly:
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if (result == IOCTL_SUCCESS)
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memcpy(bi->ioctl, esas2r_buffered_ioctl, bi->length);
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up(&buffered_ioctl_semaphore);
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return result;
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}
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/* SMP ioctl support */
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static int smp_ioctl_callback(struct esas2r_adapter *a,
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struct esas2r_request *rq,
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struct esas2r_sg_context *sgc, void *context)
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{
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struct atto_ioctl_smp *si =
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(struct atto_ioctl_smp *)esas2r_buffered_ioctl;
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esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge);
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esas2r_build_ioctl_req(a, rq, sgc->length, VDA_IOCTL_SMP);
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if (!esas2r_build_sg_list(a, rq, sgc)) {
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si->status = ATTO_STS_OUT_OF_RSRC;
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return false;
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}
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esas2r_start_request(a, rq);
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return true;
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}
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static u8 handle_smp_ioctl(struct esas2r_adapter *a, struct atto_ioctl_smp *si)
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{
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struct esas2r_buffered_ioctl bi;
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memset(&bi, 0, sizeof(bi));
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bi.a = a;
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bi.ioctl = si;
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bi.length = sizeof(struct atto_ioctl_smp)
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+ le32_to_cpu(si->req_length)
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+ le32_to_cpu(si->rsp_length);
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bi.offset = 0;
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bi.callback = smp_ioctl_callback;
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return handle_buffered_ioctl(&bi);
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}
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/* CSMI ioctl support */
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static void esas2r_csmi_ioctl_tunnel_comp_cb(struct esas2r_adapter *a,
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struct esas2r_request *rq)
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{
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rq->target_id = le16_to_cpu(rq->func_rsp.ioctl_rsp.csmi.target_id);
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rq->vrq->scsi.flags |= cpu_to_le32(rq->func_rsp.ioctl_rsp.csmi.lun);
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/* Now call the original completion callback. */
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(*rq->aux_req_cb)(a, rq);
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}
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/* Tunnel a CSMI IOCTL to the back end driver for processing. */
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static bool csmi_ioctl_tunnel(struct esas2r_adapter *a,
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union atto_ioctl_csmi *ci,
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struct esas2r_request *rq,
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struct esas2r_sg_context *sgc,
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u32 ctrl_code,
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u16 target_id)
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{
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struct atto_vda_ioctl_req *ioctl = &rq->vrq->ioctl;
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if (test_bit(AF_DEGRADED_MODE, &a->flags))
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return false;
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esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge);
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esas2r_build_ioctl_req(a, rq, sgc->length, VDA_IOCTL_CSMI);
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ioctl->csmi.ctrl_code = cpu_to_le32(ctrl_code);
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ioctl->csmi.target_id = cpu_to_le16(target_id);
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ioctl->csmi.lun = (u8)le32_to_cpu(rq->vrq->scsi.flags);
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/*
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* Always usurp the completion callback since the interrupt callback
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* mechanism may be used.
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*/
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rq->aux_req_cx = ci;
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rq->aux_req_cb = rq->comp_cb;
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rq->comp_cb = esas2r_csmi_ioctl_tunnel_comp_cb;
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if (!esas2r_build_sg_list(a, rq, sgc))
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return false;
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esas2r_start_request(a, rq);
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return true;
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}
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static bool check_lun(struct scsi_lun lun)
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{
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bool result;
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result = ((lun.scsi_lun[7] == 0) &&
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(lun.scsi_lun[6] == 0) &&
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(lun.scsi_lun[5] == 0) &&
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(lun.scsi_lun[4] == 0) &&
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(lun.scsi_lun[3] == 0) &&
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(lun.scsi_lun[2] == 0) &&
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/* Byte 1 is intentionally skipped */
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(lun.scsi_lun[0] == 0));
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return result;
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}
|
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|
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static int csmi_ioctl_callback(struct esas2r_adapter *a,
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struct esas2r_request *rq,
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struct esas2r_sg_context *sgc, void *context)
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{
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struct atto_csmi *ci = (struct atto_csmi *)context;
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union atto_ioctl_csmi *ioctl_csmi =
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(union atto_ioctl_csmi *)esas2r_buffered_ioctl;
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u8 path = 0;
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u8 tid = 0;
|
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u8 lun = 0;
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u32 sts = CSMI_STS_SUCCESS;
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struct esas2r_target *t;
|
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unsigned long flags;
|
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|
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if (ci->control_code == CSMI_CC_GET_DEV_ADDR) {
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struct atto_csmi_get_dev_addr *gda = &ci->data.dev_addr;
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|
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path = gda->path_id;
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tid = gda->target_id;
|
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lun = gda->lun;
|
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} else if (ci->control_code == CSMI_CC_TASK_MGT) {
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struct atto_csmi_task_mgmt *tm = &ci->data.tsk_mgt;
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|
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path = tm->path_id;
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tid = tm->target_id;
|
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lun = tm->lun;
|
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}
|
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|
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if (path > 0) {
|
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rq->func_rsp.ioctl_rsp.csmi.csmi_status = cpu_to_le32(
|
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CSMI_STS_INV_PARAM);
|
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return false;
|
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}
|
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|
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rq->target_id = tid;
|
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rq->vrq->scsi.flags |= cpu_to_le32(lun);
|
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|
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switch (ci->control_code) {
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case CSMI_CC_GET_DRVR_INFO:
|
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{
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struct atto_csmi_get_driver_info *gdi = &ioctl_csmi->drvr_info;
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|
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strcpy(gdi->description, esas2r_get_model_name(a));
|
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gdi->csmi_major_rev = CSMI_MAJOR_REV;
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gdi->csmi_minor_rev = CSMI_MINOR_REV;
|
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break;
|
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}
|
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|
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case CSMI_CC_GET_CNTLR_CFG:
|
|
{
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struct atto_csmi_get_cntlr_cfg *gcc = &ioctl_csmi->cntlr_cfg;
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|
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gcc->base_io_addr = 0;
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pci_read_config_dword(a->pcid, PCI_BASE_ADDRESS_2,
|
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&gcc->base_memaddr_lo);
|
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pci_read_config_dword(a->pcid, PCI_BASE_ADDRESS_3,
|
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&gcc->base_memaddr_hi);
|
|
gcc->board_id = MAKEDWORD(a->pcid->subsystem_device,
|
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a->pcid->subsystem_vendor);
|
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gcc->slot_num = CSMI_SLOT_NUM_UNKNOWN;
|
|
gcc->cntlr_class = CSMI_CNTLR_CLASS_HBA;
|
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gcc->io_bus_type = CSMI_BUS_TYPE_PCI;
|
|
gcc->pci_addr.bus_num = a->pcid->bus->number;
|
|
gcc->pci_addr.device_num = PCI_SLOT(a->pcid->devfn);
|
|
gcc->pci_addr.function_num = PCI_FUNC(a->pcid->devfn);
|
|
|
|
memset(gcc->serial_num, 0, sizeof(gcc->serial_num));
|
|
|
|
gcc->major_rev = LOBYTE(LOWORD(a->fw_version));
|
|
gcc->minor_rev = HIBYTE(LOWORD(a->fw_version));
|
|
gcc->build_rev = LOBYTE(HIWORD(a->fw_version));
|
|
gcc->release_rev = HIBYTE(HIWORD(a->fw_version));
|
|
gcc->bios_major_rev = HIBYTE(HIWORD(a->flash_ver));
|
|
gcc->bios_minor_rev = LOBYTE(HIWORD(a->flash_ver));
|
|
gcc->bios_build_rev = LOWORD(a->flash_ver);
|
|
|
|
if (test_bit(AF2_THUNDERLINK, &a->flags2))
|
|
gcc->cntlr_flags = CSMI_CNTLRF_SAS_HBA
|
|
| CSMI_CNTLRF_SATA_HBA;
|
|
else
|
|
gcc->cntlr_flags = CSMI_CNTLRF_SAS_RAID
|
|
| CSMI_CNTLRF_SATA_RAID;
|
|
|
|
gcc->rrom_major_rev = 0;
|
|
gcc->rrom_minor_rev = 0;
|
|
gcc->rrom_build_rev = 0;
|
|
gcc->rrom_release_rev = 0;
|
|
gcc->rrom_biosmajor_rev = 0;
|
|
gcc->rrom_biosminor_rev = 0;
|
|
gcc->rrom_biosbuild_rev = 0;
|
|
gcc->rrom_biosrelease_rev = 0;
|
|
break;
|
|
}
|
|
|
|
case CSMI_CC_GET_CNTLR_STS:
|
|
{
|
|
struct atto_csmi_get_cntlr_sts *gcs = &ioctl_csmi->cntlr_sts;
|
|
|
|
if (test_bit(AF_DEGRADED_MODE, &a->flags))
|
|
gcs->status = CSMI_CNTLR_STS_FAILED;
|
|
else
|
|
gcs->status = CSMI_CNTLR_STS_GOOD;
|
|
|
|
gcs->offline_reason = CSMI_OFFLINE_NO_REASON;
|
|
break;
|
|
}
|
|
|
|
case CSMI_CC_FW_DOWNLOAD:
|
|
case CSMI_CC_GET_RAID_INFO:
|
|
case CSMI_CC_GET_RAID_CFG:
|
|
|
|
sts = CSMI_STS_BAD_CTRL_CODE;
|
|
break;
|
|
|
|
case CSMI_CC_SMP_PASSTHRU:
|
|
case CSMI_CC_SSP_PASSTHRU:
|
|
case CSMI_CC_STP_PASSTHRU:
|
|
case CSMI_CC_GET_PHY_INFO:
|
|
case CSMI_CC_SET_PHY_INFO:
|
|
case CSMI_CC_GET_LINK_ERRORS:
|
|
case CSMI_CC_GET_SATA_SIG:
|
|
case CSMI_CC_GET_CONN_INFO:
|
|
case CSMI_CC_PHY_CTRL:
|
|
|
|
if (!csmi_ioctl_tunnel(a, ioctl_csmi, rq, sgc,
|
|
ci->control_code,
|
|
ESAS2R_TARG_ID_INV)) {
|
|
sts = CSMI_STS_FAILED;
|
|
break;
|
|
}
|
|
|
|
return true;
|
|
|
|
case CSMI_CC_GET_SCSI_ADDR:
|
|
{
|
|
struct atto_csmi_get_scsi_addr *gsa = &ioctl_csmi->scsi_addr;
|
|
|
|
struct scsi_lun lun;
|
|
|
|
memcpy(&lun, gsa->sas_lun, sizeof(struct scsi_lun));
|
|
|
|
if (!check_lun(lun)) {
|
|
sts = CSMI_STS_NO_SCSI_ADDR;
|
|
break;
|
|
}
|
|
|
|
/* make sure the device is present */
|
|
spin_lock_irqsave(&a->mem_lock, flags);
|
|
t = esas2r_targ_db_find_by_sas_addr(a, (u64 *)gsa->sas_addr);
|
|
spin_unlock_irqrestore(&a->mem_lock, flags);
|
|
|
|
if (t == NULL) {
|
|
sts = CSMI_STS_NO_SCSI_ADDR;
|
|
break;
|
|
}
|
|
|
|
gsa->host_index = 0xFF;
|
|
gsa->lun = gsa->sas_lun[1];
|
|
rq->target_id = esas2r_targ_get_id(t, a);
|
|
break;
|
|
}
|
|
|
|
case CSMI_CC_GET_DEV_ADDR:
|
|
{
|
|
struct atto_csmi_get_dev_addr *gda = &ioctl_csmi->dev_addr;
|
|
|
|
/* make sure the target is present */
|
|
t = a->targetdb + rq->target_id;
|
|
|
|
if (t >= a->targetdb_end
|
|
|| t->target_state != TS_PRESENT
|
|
|| t->sas_addr == 0) {
|
|
sts = CSMI_STS_NO_DEV_ADDR;
|
|
break;
|
|
}
|
|
|
|
/* fill in the result */
|
|
*(u64 *)gda->sas_addr = t->sas_addr;
|
|
memset(gda->sas_lun, 0, sizeof(gda->sas_lun));
|
|
gda->sas_lun[1] = (u8)le32_to_cpu(rq->vrq->scsi.flags);
|
|
break;
|
|
}
|
|
|
|
case CSMI_CC_TASK_MGT:
|
|
|
|
/* make sure the target is present */
|
|
t = a->targetdb + rq->target_id;
|
|
|
|
if (t >= a->targetdb_end
|
|
|| t->target_state != TS_PRESENT
|
|
|| !(t->flags & TF_PASS_THRU)) {
|
|
sts = CSMI_STS_NO_DEV_ADDR;
|
|
break;
|
|
}
|
|
|
|
if (!csmi_ioctl_tunnel(a, ioctl_csmi, rq, sgc,
|
|
ci->control_code,
|
|
t->phys_targ_id)) {
|
|
sts = CSMI_STS_FAILED;
|
|
break;
|
|
}
|
|
|
|
return true;
|
|
|
|
default:
|
|
|
|
sts = CSMI_STS_BAD_CTRL_CODE;
|
|
break;
|
|
}
|
|
|
|
rq->func_rsp.ioctl_rsp.csmi.csmi_status = cpu_to_le32(sts);
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
static void csmi_ioctl_done_callback(struct esas2r_adapter *a,
|
|
struct esas2r_request *rq, void *context)
|
|
{
|
|
struct atto_csmi *ci = (struct atto_csmi *)context;
|
|
union atto_ioctl_csmi *ioctl_csmi =
|
|
(union atto_ioctl_csmi *)esas2r_buffered_ioctl;
|
|
|
|
switch (ci->control_code) {
|
|
case CSMI_CC_GET_DRVR_INFO:
|
|
{
|
|
struct atto_csmi_get_driver_info *gdi =
|
|
&ioctl_csmi->drvr_info;
|
|
|
|
strcpy(gdi->name, ESAS2R_VERSION_STR);
|
|
|
|
gdi->major_rev = ESAS2R_MAJOR_REV;
|
|
gdi->minor_rev = ESAS2R_MINOR_REV;
|
|
gdi->build_rev = 0;
|
|
gdi->release_rev = 0;
|
|
break;
|
|
}
|
|
|
|
case CSMI_CC_GET_SCSI_ADDR:
|
|
{
|
|
struct atto_csmi_get_scsi_addr *gsa = &ioctl_csmi->scsi_addr;
|
|
|
|
if (le32_to_cpu(rq->func_rsp.ioctl_rsp.csmi.csmi_status) ==
|
|
CSMI_STS_SUCCESS) {
|
|
gsa->target_id = rq->target_id;
|
|
gsa->path_id = 0;
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
ci->status = le32_to_cpu(rq->func_rsp.ioctl_rsp.csmi.csmi_status);
|
|
}
|
|
|
|
|
|
static u8 handle_csmi_ioctl(struct esas2r_adapter *a, struct atto_csmi *ci)
|
|
{
|
|
struct esas2r_buffered_ioctl bi;
|
|
|
|
memset(&bi, 0, sizeof(bi));
|
|
|
|
bi.a = a;
|
|
bi.ioctl = &ci->data;
|
|
bi.length = sizeof(union atto_ioctl_csmi);
|
|
bi.offset = 0;
|
|
bi.callback = csmi_ioctl_callback;
|
|
bi.context = ci;
|
|
bi.done_callback = csmi_ioctl_done_callback;
|
|
bi.done_context = ci;
|
|
|
|
return handle_buffered_ioctl(&bi);
|
|
}
|
|
|
|
/* ATTO HBA ioctl support */
|
|
|
|
/* Tunnel an ATTO HBA IOCTL to the back end driver for processing. */
|
|
static bool hba_ioctl_tunnel(struct esas2r_adapter *a,
|
|
struct atto_ioctl *hi,
|
|
struct esas2r_request *rq,
|
|
struct esas2r_sg_context *sgc)
|
|
{
|
|
esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge);
|
|
|
|
esas2r_build_ioctl_req(a, rq, sgc->length, VDA_IOCTL_HBA);
|
|
|
|
if (!esas2r_build_sg_list(a, rq, sgc)) {
|
|
hi->status = ATTO_STS_OUT_OF_RSRC;
|
|
|
|
return false;
|
|
}
|
|
|
|
esas2r_start_request(a, rq);
|
|
|
|
return true;
|
|
}
|
|
|
|
static void scsi_passthru_comp_cb(struct esas2r_adapter *a,
|
|
struct esas2r_request *rq)
|
|
{
|
|
struct atto_ioctl *hi = (struct atto_ioctl *)rq->aux_req_cx;
|
|
struct atto_hba_scsi_pass_thru *spt = &hi->data.scsi_pass_thru;
|
|
u8 sts = ATTO_SPT_RS_FAILED;
|
|
|
|
spt->scsi_status = rq->func_rsp.scsi_rsp.scsi_stat;
|
|
spt->sense_length = rq->sense_len;
|
|
spt->residual_length =
|
|
le32_to_cpu(rq->func_rsp.scsi_rsp.residual_length);
|
|
|
|
switch (rq->req_stat) {
|
|
case RS_SUCCESS:
|
|
case RS_SCSI_ERROR:
|
|
sts = ATTO_SPT_RS_SUCCESS;
|
|
break;
|
|
case RS_UNDERRUN:
|
|
sts = ATTO_SPT_RS_UNDERRUN;
|
|
break;
|
|
case RS_OVERRUN:
|
|
sts = ATTO_SPT_RS_OVERRUN;
|
|
break;
|
|
case RS_SEL:
|
|
case RS_SEL2:
|
|
sts = ATTO_SPT_RS_NO_DEVICE;
|
|
break;
|
|
case RS_NO_LUN:
|
|
sts = ATTO_SPT_RS_NO_LUN;
|
|
break;
|
|
case RS_TIMEOUT:
|
|
sts = ATTO_SPT_RS_TIMEOUT;
|
|
break;
|
|
case RS_DEGRADED:
|
|
sts = ATTO_SPT_RS_DEGRADED;
|
|
break;
|
|
case RS_BUSY:
|
|
sts = ATTO_SPT_RS_BUSY;
|
|
break;
|
|
case RS_ABORTED:
|
|
sts = ATTO_SPT_RS_ABORTED;
|
|
break;
|
|
case RS_RESET:
|
|
sts = ATTO_SPT_RS_BUS_RESET;
|
|
break;
|
|
}
|
|
|
|
spt->req_status = sts;
|
|
|
|
/* Update the target ID to the next one present. */
|
|
spt->target_id =
|
|
esas2r_targ_db_find_next_present(a, (u16)spt->target_id);
|
|
|
|
/* Done, call the completion callback. */
|
|
(*rq->aux_req_cb)(a, rq);
|
|
}
|
|
|
|
static int hba_ioctl_callback(struct esas2r_adapter *a,
|
|
struct esas2r_request *rq,
|
|
struct esas2r_sg_context *sgc,
|
|
void *context)
|
|
{
|
|
struct atto_ioctl *hi = (struct atto_ioctl *)esas2r_buffered_ioctl;
|
|
|
|
hi->status = ATTO_STS_SUCCESS;
|
|
|
|
switch (hi->function) {
|
|
case ATTO_FUNC_GET_ADAP_INFO:
|
|
{
|
|
u8 *class_code = (u8 *)&a->pcid->class;
|
|
|
|
struct atto_hba_get_adapter_info *gai =
|
|
&hi->data.get_adap_info;
|
|
|
|
if (hi->flags & HBAF_TUNNEL) {
|
|
hi->status = ATTO_STS_UNSUPPORTED;
|
|
break;
|
|
}
|
|
|
|
if (hi->version > ATTO_VER_GET_ADAP_INFO0) {
|
|
hi->status = ATTO_STS_INV_VERSION;
|
|
hi->version = ATTO_VER_GET_ADAP_INFO0;
|
|
break;
|
|
}
|
|
|
|
memset(gai, 0, sizeof(*gai));
|
|
|
|
gai->pci.vendor_id = a->pcid->vendor;
|
|
gai->pci.device_id = a->pcid->device;
|
|
gai->pci.ss_vendor_id = a->pcid->subsystem_vendor;
|
|
gai->pci.ss_device_id = a->pcid->subsystem_device;
|
|
gai->pci.class_code[0] = class_code[0];
|
|
gai->pci.class_code[1] = class_code[1];
|
|
gai->pci.class_code[2] = class_code[2];
|
|
gai->pci.rev_id = a->pcid->revision;
|
|
gai->pci.bus_num = a->pcid->bus->number;
|
|
gai->pci.dev_num = PCI_SLOT(a->pcid->devfn);
|
|
gai->pci.func_num = PCI_FUNC(a->pcid->devfn);
|
|
|
|
if (pci_is_pcie(a->pcid)) {
|
|
u16 stat;
|
|
u32 caps;
|
|
|
|
pcie_capability_read_word(a->pcid, PCI_EXP_LNKSTA,
|
|
&stat);
|
|
pcie_capability_read_dword(a->pcid, PCI_EXP_LNKCAP,
|
|
&caps);
|
|
|
|
gai->pci.link_speed_curr =
|
|
(u8)(stat & PCI_EXP_LNKSTA_CLS);
|
|
gai->pci.link_speed_max =
|
|
(u8)(caps & PCI_EXP_LNKCAP_SLS);
|
|
gai->pci.link_width_curr =
|
|
(u8)((stat & PCI_EXP_LNKSTA_NLW)
|
|
>> PCI_EXP_LNKSTA_NLW_SHIFT);
|
|
gai->pci.link_width_max =
|
|
(u8)((caps & PCI_EXP_LNKCAP_MLW)
|
|
>> 4);
|
|
}
|
|
|
|
gai->pci.msi_vector_cnt = 1;
|
|
|
|
if (a->pcid->msix_enabled)
|
|
gai->pci.interrupt_mode = ATTO_GAI_PCIIM_MSIX;
|
|
else if (a->pcid->msi_enabled)
|
|
gai->pci.interrupt_mode = ATTO_GAI_PCIIM_MSI;
|
|
else
|
|
gai->pci.interrupt_mode = ATTO_GAI_PCIIM_LEGACY;
|
|
|
|
gai->adap_type = ATTO_GAI_AT_ESASRAID2;
|
|
|
|
if (test_bit(AF2_THUNDERLINK, &a->flags2))
|
|
gai->adap_type = ATTO_GAI_AT_TLSASHBA;
|
|
|
|
if (test_bit(AF_DEGRADED_MODE, &a->flags))
|
|
gai->adap_flags |= ATTO_GAI_AF_DEGRADED;
|
|
|
|
gai->adap_flags |= ATTO_GAI_AF_SPT_SUPP |
|
|
ATTO_GAI_AF_DEVADDR_SUPP;
|
|
|
|
if (a->pcid->subsystem_device == ATTO_ESAS_R60F
|
|
|| a->pcid->subsystem_device == ATTO_ESAS_R608
|
|
|| a->pcid->subsystem_device == ATTO_ESAS_R644
|
|
|| a->pcid->subsystem_device == ATTO_TSSC_3808E)
|
|
gai->adap_flags |= ATTO_GAI_AF_VIRT_SES;
|
|
|
|
gai->num_ports = ESAS2R_NUM_PHYS;
|
|
gai->num_phys = ESAS2R_NUM_PHYS;
|
|
|
|
strcpy(gai->firmware_rev, a->fw_rev);
|
|
strcpy(gai->flash_rev, a->flash_rev);
|
|
strcpy(gai->model_name_short, esas2r_get_model_name_short(a));
|
|
strcpy(gai->model_name, esas2r_get_model_name(a));
|
|
|
|
gai->num_targets = ESAS2R_MAX_TARGETS;
|
|
|
|
gai->num_busses = 1;
|
|
gai->num_targsper_bus = gai->num_targets;
|
|
gai->num_lunsper_targ = 256;
|
|
|
|
if (a->pcid->subsystem_device == ATTO_ESAS_R6F0
|
|
|| a->pcid->subsystem_device == ATTO_ESAS_R60F)
|
|
gai->num_connectors = 4;
|
|
else
|
|
gai->num_connectors = 2;
|
|
|
|
gai->adap_flags2 |= ATTO_GAI_AF2_ADAP_CTRL_SUPP;
|
|
|
|
gai->num_targets_backend = a->num_targets_backend;
|
|
|
|
gai->tunnel_flags = a->ioctl_tunnel
|
|
& (ATTO_GAI_TF_MEM_RW
|
|
| ATTO_GAI_TF_TRACE
|
|
| ATTO_GAI_TF_SCSI_PASS_THRU
|
|
| ATTO_GAI_TF_GET_DEV_ADDR
|
|
| ATTO_GAI_TF_PHY_CTRL
|
|
| ATTO_GAI_TF_CONN_CTRL
|
|
| ATTO_GAI_TF_GET_DEV_INFO);
|
|
break;
|
|
}
|
|
|
|
case ATTO_FUNC_GET_ADAP_ADDR:
|
|
{
|
|
struct atto_hba_get_adapter_address *gaa =
|
|
&hi->data.get_adap_addr;
|
|
|
|
if (hi->flags & HBAF_TUNNEL) {
|
|
hi->status = ATTO_STS_UNSUPPORTED;
|
|
break;
|
|
}
|
|
|
|
if (hi->version > ATTO_VER_GET_ADAP_ADDR0) {
|
|
hi->status = ATTO_STS_INV_VERSION;
|
|
hi->version = ATTO_VER_GET_ADAP_ADDR0;
|
|
} else if (gaa->addr_type == ATTO_GAA_AT_PORT
|
|
|| gaa->addr_type == ATTO_GAA_AT_NODE) {
|
|
if (gaa->addr_type == ATTO_GAA_AT_PORT
|
|
&& gaa->port_id >= ESAS2R_NUM_PHYS) {
|
|
hi->status = ATTO_STS_NOT_APPL;
|
|
} else {
|
|
memcpy((u64 *)gaa->address,
|
|
&a->nvram->sas_addr[0], sizeof(u64));
|
|
gaa->addr_len = sizeof(u64);
|
|
}
|
|
} else {
|
|
hi->status = ATTO_STS_INV_PARAM;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case ATTO_FUNC_MEM_RW:
|
|
{
|
|
if (hi->flags & HBAF_TUNNEL) {
|
|
if (hba_ioctl_tunnel(a, hi, rq, sgc))
|
|
return true;
|
|
|
|
break;
|
|
}
|
|
|
|
hi->status = ATTO_STS_UNSUPPORTED;
|
|
|
|
break;
|
|
}
|
|
|
|
case ATTO_FUNC_TRACE:
|
|
{
|
|
struct atto_hba_trace *trc = &hi->data.trace;
|
|
|
|
if (hi->flags & HBAF_TUNNEL) {
|
|
if (hba_ioctl_tunnel(a, hi, rq, sgc))
|
|
return true;
|
|
|
|
break;
|
|
}
|
|
|
|
if (hi->version > ATTO_VER_TRACE1) {
|
|
hi->status = ATTO_STS_INV_VERSION;
|
|
hi->version = ATTO_VER_TRACE1;
|
|
break;
|
|
}
|
|
|
|
if (trc->trace_type == ATTO_TRC_TT_FWCOREDUMP
|
|
&& hi->version >= ATTO_VER_TRACE1) {
|
|
if (trc->trace_func == ATTO_TRC_TF_UPLOAD) {
|
|
u32 len = hi->data_length;
|
|
u32 offset = trc->current_offset;
|
|
u32 total_len = ESAS2R_FWCOREDUMP_SZ;
|
|
|
|
/* Size is zero if a core dump isn't present */
|
|
if (!test_bit(AF2_COREDUMP_SAVED, &a->flags2))
|
|
total_len = 0;
|
|
|
|
if (len > total_len)
|
|
len = total_len;
|
|
|
|
if (offset >= total_len
|
|
|| offset + len > total_len
|
|
|| len == 0) {
|
|
hi->status = ATTO_STS_INV_PARAM;
|
|
break;
|
|
}
|
|
|
|
memcpy(trc + 1,
|
|
a->fw_coredump_buff + offset,
|
|
len);
|
|
|
|
hi->data_length = len;
|
|
} else if (trc->trace_func == ATTO_TRC_TF_RESET) {
|
|
memset(a->fw_coredump_buff, 0,
|
|
ESAS2R_FWCOREDUMP_SZ);
|
|
|
|
clear_bit(AF2_COREDUMP_SAVED, &a->flags2);
|
|
} else if (trc->trace_func != ATTO_TRC_TF_GET_INFO) {
|
|
hi->status = ATTO_STS_UNSUPPORTED;
|
|
break;
|
|
}
|
|
|
|
/* Always return all the info we can. */
|
|
trc->trace_mask = 0;
|
|
trc->current_offset = 0;
|
|
trc->total_length = ESAS2R_FWCOREDUMP_SZ;
|
|
|
|
/* Return zero length buffer if core dump not present */
|
|
if (!test_bit(AF2_COREDUMP_SAVED, &a->flags2))
|
|
trc->total_length = 0;
|
|
} else {
|
|
hi->status = ATTO_STS_UNSUPPORTED;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case ATTO_FUNC_SCSI_PASS_THRU:
|
|
{
|
|
struct atto_hba_scsi_pass_thru *spt = &hi->data.scsi_pass_thru;
|
|
struct scsi_lun lun;
|
|
|
|
memcpy(&lun, spt->lun, sizeof(struct scsi_lun));
|
|
|
|
if (hi->flags & HBAF_TUNNEL) {
|
|
if (hba_ioctl_tunnel(a, hi, rq, sgc))
|
|
return true;
|
|
|
|
break;
|
|
}
|
|
|
|
if (hi->version > ATTO_VER_SCSI_PASS_THRU0) {
|
|
hi->status = ATTO_STS_INV_VERSION;
|
|
hi->version = ATTO_VER_SCSI_PASS_THRU0;
|
|
break;
|
|
}
|
|
|
|
if (spt->target_id >= ESAS2R_MAX_TARGETS || !check_lun(lun)) {
|
|
hi->status = ATTO_STS_INV_PARAM;
|
|
break;
|
|
}
|
|
|
|
esas2r_sgc_init(sgc, a, rq, NULL);
|
|
|
|
sgc->length = hi->data_length;
|
|
sgc->cur_offset += offsetof(struct atto_ioctl, data.byte)
|
|
+ sizeof(struct atto_hba_scsi_pass_thru);
|
|
|
|
/* Finish request initialization */
|
|
rq->target_id = (u16)spt->target_id;
|
|
rq->vrq->scsi.flags |= cpu_to_le32(spt->lun[1]);
|
|
memcpy(rq->vrq->scsi.cdb, spt->cdb, 16);
|
|
rq->vrq->scsi.length = cpu_to_le32(hi->data_length);
|
|
rq->sense_len = spt->sense_length;
|
|
rq->sense_buf = (u8 *)spt->sense_data;
|
|
/* NOTE: we ignore spt->timeout */
|
|
|
|
/*
|
|
* always usurp the completion callback since the interrupt
|
|
* callback mechanism may be used.
|
|
*/
|
|
|
|
rq->aux_req_cx = hi;
|
|
rq->aux_req_cb = rq->comp_cb;
|
|
rq->comp_cb = scsi_passthru_comp_cb;
|
|
|
|
if (spt->flags & ATTO_SPTF_DATA_IN) {
|
|
rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_RDD);
|
|
} else if (spt->flags & ATTO_SPTF_DATA_OUT) {
|
|
rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_WRD);
|
|
} else {
|
|
if (sgc->length) {
|
|
hi->status = ATTO_STS_INV_PARAM;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (spt->flags & ATTO_SPTF_ORDERED_Q)
|
|
rq->vrq->scsi.flags |=
|
|
cpu_to_le32(FCP_CMND_TA_ORDRD_Q);
|
|
else if (spt->flags & ATTO_SPTF_HEAD_OF_Q)
|
|
rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_TA_HEAD_Q);
|
|
|
|
|
|
if (!esas2r_build_sg_list(a, rq, sgc)) {
|
|
hi->status = ATTO_STS_OUT_OF_RSRC;
|
|
break;
|
|
}
|
|
|
|
esas2r_start_request(a, rq);
|
|
|
|
return true;
|
|
}
|
|
|
|
case ATTO_FUNC_GET_DEV_ADDR:
|
|
{
|
|
struct atto_hba_get_device_address *gda =
|
|
&hi->data.get_dev_addr;
|
|
struct esas2r_target *t;
|
|
|
|
if (hi->flags & HBAF_TUNNEL) {
|
|
if (hba_ioctl_tunnel(a, hi, rq, sgc))
|
|
return true;
|
|
|
|
break;
|
|
}
|
|
|
|
if (hi->version > ATTO_VER_GET_DEV_ADDR0) {
|
|
hi->status = ATTO_STS_INV_VERSION;
|
|
hi->version = ATTO_VER_GET_DEV_ADDR0;
|
|
break;
|
|
}
|
|
|
|
if (gda->target_id >= ESAS2R_MAX_TARGETS) {
|
|
hi->status = ATTO_STS_INV_PARAM;
|
|
break;
|
|
}
|
|
|
|
t = a->targetdb + (u16)gda->target_id;
|
|
|
|
if (t->target_state != TS_PRESENT) {
|
|
hi->status = ATTO_STS_FAILED;
|
|
} else if (gda->addr_type == ATTO_GDA_AT_PORT) {
|
|
if (t->sas_addr == 0) {
|
|
hi->status = ATTO_STS_UNSUPPORTED;
|
|
} else {
|
|
*(u64 *)gda->address = t->sas_addr;
|
|
|
|
gda->addr_len = sizeof(u64);
|
|
}
|
|
} else if (gda->addr_type == ATTO_GDA_AT_NODE) {
|
|
hi->status = ATTO_STS_NOT_APPL;
|
|
} else {
|
|
hi->status = ATTO_STS_INV_PARAM;
|
|
}
|
|
|
|
/* update the target ID to the next one present. */
|
|
|
|
gda->target_id =
|
|
esas2r_targ_db_find_next_present(a,
|
|
(u16)gda->target_id);
|
|
break;
|
|
}
|
|
|
|
case ATTO_FUNC_PHY_CTRL:
|
|
case ATTO_FUNC_CONN_CTRL:
|
|
{
|
|
if (hba_ioctl_tunnel(a, hi, rq, sgc))
|
|
return true;
|
|
|
|
break;
|
|
}
|
|
|
|
case ATTO_FUNC_ADAP_CTRL:
|
|
{
|
|
struct atto_hba_adap_ctrl *ac = &hi->data.adap_ctrl;
|
|
|
|
if (hi->flags & HBAF_TUNNEL) {
|
|
hi->status = ATTO_STS_UNSUPPORTED;
|
|
break;
|
|
}
|
|
|
|
if (hi->version > ATTO_VER_ADAP_CTRL0) {
|
|
hi->status = ATTO_STS_INV_VERSION;
|
|
hi->version = ATTO_VER_ADAP_CTRL0;
|
|
break;
|
|
}
|
|
|
|
if (ac->adap_func == ATTO_AC_AF_HARD_RST) {
|
|
esas2r_reset_adapter(a);
|
|
} else if (ac->adap_func != ATTO_AC_AF_GET_STATE) {
|
|
hi->status = ATTO_STS_UNSUPPORTED;
|
|
break;
|
|
}
|
|
|
|
if (test_bit(AF_CHPRST_NEEDED, &a->flags))
|
|
ac->adap_state = ATTO_AC_AS_RST_SCHED;
|
|
else if (test_bit(AF_CHPRST_PENDING, &a->flags))
|
|
ac->adap_state = ATTO_AC_AS_RST_IN_PROG;
|
|
else if (test_bit(AF_DISC_PENDING, &a->flags))
|
|
ac->adap_state = ATTO_AC_AS_RST_DISC;
|
|
else if (test_bit(AF_DISABLED, &a->flags))
|
|
ac->adap_state = ATTO_AC_AS_DISABLED;
|
|
else if (test_bit(AF_DEGRADED_MODE, &a->flags))
|
|
ac->adap_state = ATTO_AC_AS_DEGRADED;
|
|
else
|
|
ac->adap_state = ATTO_AC_AS_OK;
|
|
|
|
break;
|
|
}
|
|
|
|
case ATTO_FUNC_GET_DEV_INFO:
|
|
{
|
|
struct atto_hba_get_device_info *gdi = &hi->data.get_dev_info;
|
|
struct esas2r_target *t;
|
|
|
|
if (hi->flags & HBAF_TUNNEL) {
|
|
if (hba_ioctl_tunnel(a, hi, rq, sgc))
|
|
return true;
|
|
|
|
break;
|
|
}
|
|
|
|
if (hi->version > ATTO_VER_GET_DEV_INFO0) {
|
|
hi->status = ATTO_STS_INV_VERSION;
|
|
hi->version = ATTO_VER_GET_DEV_INFO0;
|
|
break;
|
|
}
|
|
|
|
if (gdi->target_id >= ESAS2R_MAX_TARGETS) {
|
|
hi->status = ATTO_STS_INV_PARAM;
|
|
break;
|
|
}
|
|
|
|
t = a->targetdb + (u16)gdi->target_id;
|
|
|
|
/* update the target ID to the next one present. */
|
|
|
|
gdi->target_id =
|
|
esas2r_targ_db_find_next_present(a,
|
|
(u16)gdi->target_id);
|
|
|
|
if (t->target_state != TS_PRESENT) {
|
|
hi->status = ATTO_STS_FAILED;
|
|
break;
|
|
}
|
|
|
|
hi->status = ATTO_STS_UNSUPPORTED;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
|
|
hi->status = ATTO_STS_INV_FUNC;
|
|
break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static void hba_ioctl_done_callback(struct esas2r_adapter *a,
|
|
struct esas2r_request *rq, void *context)
|
|
{
|
|
struct atto_ioctl *ioctl_hba =
|
|
(struct atto_ioctl *)esas2r_buffered_ioctl;
|
|
|
|
esas2r_debug("hba_ioctl_done_callback %d", a->index);
|
|
|
|
if (ioctl_hba->function == ATTO_FUNC_GET_ADAP_INFO) {
|
|
struct atto_hba_get_adapter_info *gai =
|
|
&ioctl_hba->data.get_adap_info;
|
|
|
|
esas2r_debug("ATTO_FUNC_GET_ADAP_INFO");
|
|
|
|
gai->drvr_rev_major = ESAS2R_MAJOR_REV;
|
|
gai->drvr_rev_minor = ESAS2R_MINOR_REV;
|
|
|
|
strcpy(gai->drvr_rev_ascii, ESAS2R_VERSION_STR);
|
|
strcpy(gai->drvr_name, ESAS2R_DRVR_NAME);
|
|
|
|
gai->num_busses = 1;
|
|
gai->num_targsper_bus = ESAS2R_MAX_ID + 1;
|
|
gai->num_lunsper_targ = 1;
|
|
}
|
|
}
|
|
|
|
u8 handle_hba_ioctl(struct esas2r_adapter *a,
|
|
struct atto_ioctl *ioctl_hba)
|
|
{
|
|
struct esas2r_buffered_ioctl bi;
|
|
|
|
memset(&bi, 0, sizeof(bi));
|
|
|
|
bi.a = a;
|
|
bi.ioctl = ioctl_hba;
|
|
bi.length = sizeof(struct atto_ioctl) + ioctl_hba->data_length;
|
|
bi.callback = hba_ioctl_callback;
|
|
bi.context = NULL;
|
|
bi.done_callback = hba_ioctl_done_callback;
|
|
bi.done_context = NULL;
|
|
bi.offset = 0;
|
|
|
|
return handle_buffered_ioctl(&bi);
|
|
}
|
|
|
|
|
|
int esas2r_write_params(struct esas2r_adapter *a, struct esas2r_request *rq,
|
|
struct esas2r_sas_nvram *data)
|
|
{
|
|
int result = 0;
|
|
|
|
a->nvram_command_done = 0;
|
|
rq->comp_cb = complete_nvr_req;
|
|
|
|
if (esas2r_nvram_write(a, rq, data)) {
|
|
/* now wait around for it to complete. */
|
|
while (!a->nvram_command_done)
|
|
wait_event_interruptible(a->nvram_waiter,
|
|
a->nvram_command_done);
|
|
;
|
|
|
|
/* done, check the status. */
|
|
if (rq->req_stat == RS_SUCCESS)
|
|
result = 1;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
/* This function only cares about ATTO-specific ioctls (atto_express_ioctl) */
|
|
int esas2r_ioctl_handler(void *hostdata, unsigned int cmd, void __user *arg)
|
|
{
|
|
struct atto_express_ioctl *ioctl = NULL;
|
|
struct esas2r_adapter *a;
|
|
struct esas2r_request *rq;
|
|
u16 code;
|
|
int err;
|
|
|
|
esas2r_log(ESAS2R_LOG_DEBG, "ioctl (%p, %x, %p)", hostdata, cmd, arg);
|
|
|
|
if ((arg == NULL)
|
|
|| (cmd < EXPRESS_IOCTL_MIN)
|
|
|| (cmd > EXPRESS_IOCTL_MAX))
|
|
return -ENOTSUPP;
|
|
|
|
ioctl = memdup_user(arg, sizeof(struct atto_express_ioctl));
|
|
if (IS_ERR(ioctl)) {
|
|
esas2r_log(ESAS2R_LOG_WARN,
|
|
"ioctl_handler access_ok failed for cmd %u, address %p",
|
|
cmd, arg);
|
|
return PTR_ERR(ioctl);
|
|
}
|
|
|
|
/* verify the signature */
|
|
|
|
if (memcmp(ioctl->header.signature,
|
|
EXPRESS_IOCTL_SIGNATURE,
|
|
EXPRESS_IOCTL_SIGNATURE_SIZE) != 0) {
|
|
esas2r_log(ESAS2R_LOG_WARN, "invalid signature");
|
|
kfree(ioctl);
|
|
|
|
return -ENOTSUPP;
|
|
}
|
|
|
|
/* assume success */
|
|
|
|
ioctl->header.return_code = IOCTL_SUCCESS;
|
|
err = 0;
|
|
|
|
/*
|
|
* handle EXPRESS_IOCTL_GET_CHANNELS
|
|
* without paying attention to channel
|
|
*/
|
|
|
|
if (cmd == EXPRESS_IOCTL_GET_CHANNELS) {
|
|
int i = 0, k = 0;
|
|
|
|
ioctl->data.chanlist.num_channels = 0;
|
|
|
|
while (i < MAX_ADAPTERS) {
|
|
if (esas2r_adapters[i]) {
|
|
ioctl->data.chanlist.num_channels++;
|
|
ioctl->data.chanlist.channel[k] = i;
|
|
k++;
|
|
}
|
|
i++;
|
|
}
|
|
|
|
goto ioctl_done;
|
|
}
|
|
|
|
/* get the channel */
|
|
|
|
if (ioctl->header.channel == 0xFF) {
|
|
a = (struct esas2r_adapter *)hostdata;
|
|
} else {
|
|
if (ioctl->header.channel >= MAX_ADAPTERS ||
|
|
esas2r_adapters[ioctl->header.channel] == NULL) {
|
|
ioctl->header.return_code = IOCTL_BAD_CHANNEL;
|
|
esas2r_log(ESAS2R_LOG_WARN, "bad channel value");
|
|
kfree(ioctl);
|
|
|
|
return -ENOTSUPP;
|
|
}
|
|
a = esas2r_adapters[ioctl->header.channel];
|
|
}
|
|
|
|
switch (cmd) {
|
|
case EXPRESS_IOCTL_RW_FIRMWARE:
|
|
|
|
if (ioctl->data.fwrw.img_type == FW_IMG_FM_API) {
|
|
err = esas2r_write_fw(a,
|
|
(char *)ioctl->data.fwrw.image,
|
|
0,
|
|
sizeof(struct
|
|
atto_express_ioctl));
|
|
|
|
if (err >= 0) {
|
|
err = esas2r_read_fw(a,
|
|
(char *)ioctl->data.fwrw.
|
|
image,
|
|
0,
|
|
sizeof(struct
|
|
atto_express_ioctl));
|
|
}
|
|
} else if (ioctl->data.fwrw.img_type == FW_IMG_FS_API) {
|
|
err = esas2r_write_fs(a,
|
|
(char *)ioctl->data.fwrw.image,
|
|
0,
|
|
sizeof(struct
|
|
atto_express_ioctl));
|
|
|
|
if (err >= 0) {
|
|
err = esas2r_read_fs(a,
|
|
(char *)ioctl->data.fwrw.
|
|
image,
|
|
0,
|
|
sizeof(struct
|
|
atto_express_ioctl));
|
|
}
|
|
} else {
|
|
ioctl->header.return_code = IOCTL_BAD_FLASH_IMGTYPE;
|
|
}
|
|
|
|
break;
|
|
|
|
case EXPRESS_IOCTL_READ_PARAMS:
|
|
|
|
memcpy(ioctl->data.prw.data_buffer, a->nvram,
|
|
sizeof(struct esas2r_sas_nvram));
|
|
ioctl->data.prw.code = 1;
|
|
break;
|
|
|
|
case EXPRESS_IOCTL_WRITE_PARAMS:
|
|
|
|
rq = esas2r_alloc_request(a);
|
|
if (rq == NULL) {
|
|
kfree(ioctl);
|
|
esas2r_log(ESAS2R_LOG_WARN,
|
|
"could not allocate an internal request");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
code = esas2r_write_params(a, rq,
|
|
(struct esas2r_sas_nvram *)ioctl->data.prw.data_buffer);
|
|
ioctl->data.prw.code = code;
|
|
|
|
esas2r_free_request(a, rq);
|
|
|
|
break;
|
|
|
|
case EXPRESS_IOCTL_DEFAULT_PARAMS:
|
|
|
|
esas2r_nvram_get_defaults(a,
|
|
(struct esas2r_sas_nvram *)ioctl->data.prw.data_buffer);
|
|
ioctl->data.prw.code = 1;
|
|
break;
|
|
|
|
case EXPRESS_IOCTL_CHAN_INFO:
|
|
|
|
ioctl->data.chaninfo.major_rev = ESAS2R_MAJOR_REV;
|
|
ioctl->data.chaninfo.minor_rev = ESAS2R_MINOR_REV;
|
|
ioctl->data.chaninfo.IRQ = a->pcid->irq;
|
|
ioctl->data.chaninfo.device_id = a->pcid->device;
|
|
ioctl->data.chaninfo.vendor_id = a->pcid->vendor;
|
|
ioctl->data.chaninfo.ven_dev_id = a->pcid->subsystem_device;
|
|
ioctl->data.chaninfo.revision_id = a->pcid->revision;
|
|
ioctl->data.chaninfo.pci_bus = a->pcid->bus->number;
|
|
ioctl->data.chaninfo.pci_dev_func = a->pcid->devfn;
|
|
ioctl->data.chaninfo.core_rev = 0;
|
|
ioctl->data.chaninfo.host_no = a->host->host_no;
|
|
ioctl->data.chaninfo.hbaapi_rev = 0;
|
|
break;
|
|
|
|
case EXPRESS_IOCTL_SMP:
|
|
ioctl->header.return_code = handle_smp_ioctl(a,
|
|
&ioctl->data.
|
|
ioctl_smp);
|
|
break;
|
|
|
|
case EXPRESS_CSMI:
|
|
ioctl->header.return_code =
|
|
handle_csmi_ioctl(a, &ioctl->data.csmi);
|
|
break;
|
|
|
|
case EXPRESS_IOCTL_HBA:
|
|
ioctl->header.return_code = handle_hba_ioctl(a,
|
|
&ioctl->data.
|
|
ioctl_hba);
|
|
break;
|
|
|
|
case EXPRESS_IOCTL_VDA:
|
|
err = esas2r_write_vda(a,
|
|
(char *)&ioctl->data.ioctl_vda,
|
|
0,
|
|
sizeof(struct atto_ioctl_vda) +
|
|
ioctl->data.ioctl_vda.data_length);
|
|
|
|
if (err >= 0) {
|
|
err = esas2r_read_vda(a,
|
|
(char *)&ioctl->data.ioctl_vda,
|
|
0,
|
|
sizeof(struct atto_ioctl_vda) +
|
|
ioctl->data.ioctl_vda.data_length);
|
|
}
|
|
|
|
|
|
|
|
|
|
break;
|
|
|
|
case EXPRESS_IOCTL_GET_MOD_INFO:
|
|
|
|
ioctl->data.modinfo.adapter = a;
|
|
ioctl->data.modinfo.pci_dev = a->pcid;
|
|
ioctl->data.modinfo.scsi_host = a->host;
|
|
ioctl->data.modinfo.host_no = a->host->host_no;
|
|
|
|
break;
|
|
|
|
default:
|
|
esas2r_debug("esas2r_ioctl invalid cmd %p!", cmd);
|
|
ioctl->header.return_code = IOCTL_ERR_INVCMD;
|
|
}
|
|
|
|
ioctl_done:
|
|
|
|
if (err < 0) {
|
|
esas2r_log(ESAS2R_LOG_WARN, "err %d on ioctl cmd %u", err,
|
|
cmd);
|
|
|
|
switch (err) {
|
|
case -ENOMEM:
|
|
case -EBUSY:
|
|
ioctl->header.return_code = IOCTL_OUT_OF_RESOURCES;
|
|
break;
|
|
|
|
case -ENOSYS:
|
|
case -EINVAL:
|
|
ioctl->header.return_code = IOCTL_INVALID_PARAM;
|
|
break;
|
|
|
|
default:
|
|
ioctl->header.return_code = IOCTL_GENERAL_ERROR;
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
/* Always copy the buffer back, if only to pick up the status */
|
|
err = copy_to_user(arg, ioctl, sizeof(struct atto_express_ioctl));
|
|
if (err != 0) {
|
|
esas2r_log(ESAS2R_LOG_WARN,
|
|
"ioctl_handler copy_to_user didn't copy everything (err %d, cmd %u)",
|
|
err, cmd);
|
|
kfree(ioctl);
|
|
|
|
return -EFAULT;
|
|
}
|
|
|
|
kfree(ioctl);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int esas2r_ioctl(struct scsi_device *sd, unsigned int cmd, void __user *arg)
|
|
{
|
|
return esas2r_ioctl_handler(sd->host->hostdata, cmd, arg);
|
|
}
|
|
|
|
static void free_fw_buffers(struct esas2r_adapter *a)
|
|
{
|
|
if (a->firmware.data) {
|
|
dma_free_coherent(&a->pcid->dev,
|
|
(size_t)a->firmware.orig_len,
|
|
a->firmware.data,
|
|
(dma_addr_t)a->firmware.phys);
|
|
|
|
a->firmware.data = NULL;
|
|
}
|
|
}
|
|
|
|
static int allocate_fw_buffers(struct esas2r_adapter *a, u32 length)
|
|
{
|
|
free_fw_buffers(a);
|
|
|
|
a->firmware.orig_len = length;
|
|
|
|
a->firmware.data = dma_alloc_coherent(&a->pcid->dev,
|
|
(size_t)length,
|
|
(dma_addr_t *)&a->firmware.phys,
|
|
GFP_KERNEL);
|
|
|
|
if (!a->firmware.data) {
|
|
esas2r_debug("buffer alloc failed!");
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Handle a call to read firmware. */
|
|
int esas2r_read_fw(struct esas2r_adapter *a, char *buf, long off, int count)
|
|
{
|
|
esas2r_trace_enter();
|
|
/* if the cached header is a status, simply copy it over and return. */
|
|
if (a->firmware.state == FW_STATUS_ST) {
|
|
int size = min_t(int, count, sizeof(a->firmware.header));
|
|
esas2r_trace_exit();
|
|
memcpy(buf, &a->firmware.header, size);
|
|
esas2r_debug("esas2r_read_fw: STATUS size %d", size);
|
|
return size;
|
|
}
|
|
|
|
/*
|
|
* if the cached header is a command, do it if at
|
|
* offset 0, otherwise copy the pieces.
|
|
*/
|
|
|
|
if (a->firmware.state == FW_COMMAND_ST) {
|
|
u32 length = a->firmware.header.length;
|
|
esas2r_trace_exit();
|
|
|
|
esas2r_debug("esas2r_read_fw: COMMAND length %d off %d",
|
|
length,
|
|
off);
|
|
|
|
if (off == 0) {
|
|
if (a->firmware.header.action == FI_ACT_UP) {
|
|
if (!allocate_fw_buffers(a, length))
|
|
return -ENOMEM;
|
|
|
|
|
|
/* copy header over */
|
|
|
|
memcpy(a->firmware.data,
|
|
&a->firmware.header,
|
|
sizeof(a->firmware.header));
|
|
|
|
do_fm_api(a,
|
|
(struct esas2r_flash_img *)a->firmware.data);
|
|
} else if (a->firmware.header.action == FI_ACT_UPSZ) {
|
|
int size =
|
|
min((int)count,
|
|
(int)sizeof(a->firmware.header));
|
|
do_fm_api(a, &a->firmware.header);
|
|
memcpy(buf, &a->firmware.header, size);
|
|
esas2r_debug("FI_ACT_UPSZ size %d", size);
|
|
return size;
|
|
} else {
|
|
esas2r_debug("invalid action %d",
|
|
a->firmware.header.action);
|
|
return -ENOSYS;
|
|
}
|
|
}
|
|
|
|
if (count + off > length)
|
|
count = length - off;
|
|
|
|
if (count < 0)
|
|
return 0;
|
|
|
|
if (!a->firmware.data) {
|
|
esas2r_debug(
|
|
"read: nonzero offset but no buffer available!");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
esas2r_debug("esas2r_read_fw: off %d count %d length %d ", off,
|
|
count,
|
|
length);
|
|
|
|
memcpy(buf, &a->firmware.data[off], count);
|
|
|
|
/* when done, release the buffer */
|
|
|
|
if (length <= off + count) {
|
|
esas2r_debug("esas2r_read_fw: freeing buffer!");
|
|
|
|
free_fw_buffers(a);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
esas2r_trace_exit();
|
|
esas2r_debug("esas2r_read_fw: invalid firmware state %d",
|
|
a->firmware.state);
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Handle a call to write firmware. */
|
|
int esas2r_write_fw(struct esas2r_adapter *a, const char *buf, long off,
|
|
int count)
|
|
{
|
|
u32 length;
|
|
|
|
if (off == 0) {
|
|
struct esas2r_flash_img *header =
|
|
(struct esas2r_flash_img *)buf;
|
|
|
|
/* assume version 0 flash image */
|
|
|
|
int min_size = sizeof(struct esas2r_flash_img_v0);
|
|
|
|
a->firmware.state = FW_INVALID_ST;
|
|
|
|
/* validate the version field first */
|
|
|
|
if (count < 4
|
|
|| header->fi_version > FI_VERSION_1) {
|
|
esas2r_debug(
|
|
"esas2r_write_fw: short header or invalid version");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* See if its a version 1 flash image */
|
|
|
|
if (header->fi_version == FI_VERSION_1)
|
|
min_size = sizeof(struct esas2r_flash_img);
|
|
|
|
/* If this is the start, the header must be full and valid. */
|
|
if (count < min_size) {
|
|
esas2r_debug("esas2r_write_fw: short header, aborting");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Make sure the size is reasonable. */
|
|
length = header->length;
|
|
|
|
if (length > 1024 * 1024) {
|
|
esas2r_debug(
|
|
"esas2r_write_fw: hosed, length %d fi_version %d",
|
|
length, header->fi_version);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* If this is a write command, allocate memory because
|
|
* we have to cache everything. otherwise, just cache
|
|
* the header, because the read op will do the command.
|
|
*/
|
|
|
|
if (header->action == FI_ACT_DOWN) {
|
|
if (!allocate_fw_buffers(a, length))
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* Store the command, so there is context on subsequent
|
|
* calls.
|
|
*/
|
|
memcpy(&a->firmware.header,
|
|
buf,
|
|
sizeof(*header));
|
|
} else if (header->action == FI_ACT_UP
|
|
|| header->action == FI_ACT_UPSZ) {
|
|
/* Save the command, result will be picked up on read */
|
|
memcpy(&a->firmware.header,
|
|
buf,
|
|
sizeof(*header));
|
|
|
|
a->firmware.state = FW_COMMAND_ST;
|
|
|
|
esas2r_debug(
|
|
"esas2r_write_fw: COMMAND, count %d, action %d ",
|
|
count, header->action);
|
|
|
|
/*
|
|
* Pretend we took the whole buffer,
|
|
* so we don't get bothered again.
|
|
*/
|
|
|
|
return count;
|
|
} else {
|
|
esas2r_debug("esas2r_write_fw: invalid action %d ",
|
|
a->firmware.header.action);
|
|
return -ENOSYS;
|
|
}
|
|
} else {
|
|
length = a->firmware.header.length;
|
|
}
|
|
|
|
/*
|
|
* We only get here on a download command, regardless of offset.
|
|
* the chunks written by the system need to be cached, and when
|
|
* the final one arrives, issue the fmapi command.
|
|
*/
|
|
|
|
if (off + count > length)
|
|
count = length - off;
|
|
|
|
if (count > 0) {
|
|
esas2r_debug("esas2r_write_fw: off %d count %d length %d", off,
|
|
count,
|
|
length);
|
|
|
|
/*
|
|
* On a full upload, the system tries sending the whole buffer.
|
|
* there's nothing to do with it, so just drop it here, before
|
|
* trying to copy over into unallocated memory!
|
|
*/
|
|
if (a->firmware.header.action == FI_ACT_UP)
|
|
return count;
|
|
|
|
if (!a->firmware.data) {
|
|
esas2r_debug(
|
|
"write: nonzero offset but no buffer available!");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memcpy(&a->firmware.data[off], buf, count);
|
|
|
|
if (length == off + count) {
|
|
do_fm_api(a,
|
|
(struct esas2r_flash_img *)a->firmware.data);
|
|
|
|
/*
|
|
* Now copy the header result to be picked up by the
|
|
* next read
|
|
*/
|
|
memcpy(&a->firmware.header,
|
|
a->firmware.data,
|
|
sizeof(a->firmware.header));
|
|
|
|
a->firmware.state = FW_STATUS_ST;
|
|
|
|
esas2r_debug("write completed");
|
|
|
|
/*
|
|
* Since the system has the data buffered, the only way
|
|
* this can leak is if a root user writes a program
|
|
* that writes a shorter buffer than it claims, and the
|
|
* copyin fails.
|
|
*/
|
|
free_fw_buffers(a);
|
|
}
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
/* Callback for the completion of a VDA request. */
|
|
static void vda_complete_req(struct esas2r_adapter *a,
|
|
struct esas2r_request *rq)
|
|
{
|
|
a->vda_command_done = 1;
|
|
wake_up_interruptible(&a->vda_waiter);
|
|
}
|
|
|
|
/* Scatter/gather callback for VDA requests */
|
|
static u32 get_physaddr_vda(struct esas2r_sg_context *sgc, u64 *addr)
|
|
{
|
|
struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter;
|
|
int offset = (u8 *)sgc->cur_offset - (u8 *)a->vda_buffer;
|
|
|
|
(*addr) = a->ppvda_buffer + offset;
|
|
return VDA_MAX_BUFFER_SIZE - offset;
|
|
}
|
|
|
|
/* Handle a call to read a VDA command. */
|
|
int esas2r_read_vda(struct esas2r_adapter *a, char *buf, long off, int count)
|
|
{
|
|
if (!a->vda_buffer)
|
|
return -ENOMEM;
|
|
|
|
if (off == 0) {
|
|
struct esas2r_request *rq;
|
|
struct atto_ioctl_vda *vi =
|
|
(struct atto_ioctl_vda *)a->vda_buffer;
|
|
struct esas2r_sg_context sgc;
|
|
bool wait_for_completion;
|
|
|
|
/*
|
|
* Presumeably, someone has already written to the vda_buffer,
|
|
* and now they are reading the node the response, so now we
|
|
* will actually issue the request to the chip and reply.
|
|
*/
|
|
|
|
/* allocate a request */
|
|
rq = esas2r_alloc_request(a);
|
|
if (rq == NULL) {
|
|
esas2r_debug("esas2r_read_vda: out of requests");
|
|
return -EBUSY;
|
|
}
|
|
|
|
rq->comp_cb = vda_complete_req;
|
|
|
|
sgc.first_req = rq;
|
|
sgc.adapter = a;
|
|
sgc.cur_offset = a->vda_buffer + VDA_BUFFER_HEADER_SZ;
|
|
sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_vda;
|
|
|
|
a->vda_command_done = 0;
|
|
|
|
wait_for_completion =
|
|
esas2r_process_vda_ioctl(a, vi, rq, &sgc);
|
|
|
|
if (wait_for_completion) {
|
|
/* now wait around for it to complete. */
|
|
|
|
while (!a->vda_command_done)
|
|
wait_event_interruptible(a->vda_waiter,
|
|
a->vda_command_done);
|
|
}
|
|
|
|
esas2r_free_request(a, (struct esas2r_request *)rq);
|
|
}
|
|
|
|
if (off > VDA_MAX_BUFFER_SIZE)
|
|
return 0;
|
|
|
|
if (count + off > VDA_MAX_BUFFER_SIZE)
|
|
count = VDA_MAX_BUFFER_SIZE - off;
|
|
|
|
if (count < 0)
|
|
return 0;
|
|
|
|
memcpy(buf, a->vda_buffer + off, count);
|
|
|
|
return count;
|
|
}
|
|
|
|
/* Handle a call to write a VDA command. */
|
|
int esas2r_write_vda(struct esas2r_adapter *a, const char *buf, long off,
|
|
int count)
|
|
{
|
|
/*
|
|
* allocate memory for it, if not already done. once allocated,
|
|
* we will keep it around until the driver is unloaded.
|
|
*/
|
|
|
|
if (!a->vda_buffer) {
|
|
dma_addr_t dma_addr;
|
|
a->vda_buffer = dma_alloc_coherent(&a->pcid->dev,
|
|
(size_t)
|
|
VDA_MAX_BUFFER_SIZE,
|
|
&dma_addr,
|
|
GFP_KERNEL);
|
|
|
|
a->ppvda_buffer = dma_addr;
|
|
}
|
|
|
|
if (!a->vda_buffer)
|
|
return -ENOMEM;
|
|
|
|
if (off > VDA_MAX_BUFFER_SIZE)
|
|
return 0;
|
|
|
|
if (count + off > VDA_MAX_BUFFER_SIZE)
|
|
count = VDA_MAX_BUFFER_SIZE - off;
|
|
|
|
if (count < 1)
|
|
return 0;
|
|
|
|
memcpy(a->vda_buffer + off, buf, count);
|
|
|
|
return count;
|
|
}
|
|
|
|
/* Callback for the completion of an FS_API request.*/
|
|
static void fs_api_complete_req(struct esas2r_adapter *a,
|
|
struct esas2r_request *rq)
|
|
{
|
|
a->fs_api_command_done = 1;
|
|
|
|
wake_up_interruptible(&a->fs_api_waiter);
|
|
}
|
|
|
|
/* Scatter/gather callback for VDA requests */
|
|
static u32 get_physaddr_fs_api(struct esas2r_sg_context *sgc, u64 *addr)
|
|
{
|
|
struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter;
|
|
struct esas2r_ioctl_fs *fs =
|
|
(struct esas2r_ioctl_fs *)a->fs_api_buffer;
|
|
u32 offset = (u8 *)sgc->cur_offset - (u8 *)fs;
|
|
|
|
(*addr) = a->ppfs_api_buffer + offset;
|
|
|
|
return a->fs_api_buffer_size - offset;
|
|
}
|
|
|
|
/* Handle a call to read firmware via FS_API. */
|
|
int esas2r_read_fs(struct esas2r_adapter *a, char *buf, long off, int count)
|
|
{
|
|
if (!a->fs_api_buffer)
|
|
return -ENOMEM;
|
|
|
|
if (off == 0) {
|
|
struct esas2r_request *rq;
|
|
struct esas2r_sg_context sgc;
|
|
struct esas2r_ioctl_fs *fs =
|
|
(struct esas2r_ioctl_fs *)a->fs_api_buffer;
|
|
|
|
/* If another flash request is already in progress, return. */
|
|
if (mutex_lock_interruptible(&a->fs_api_mutex)) {
|
|
busy:
|
|
fs->status = ATTO_STS_OUT_OF_RSRC;
|
|
return -EBUSY;
|
|
}
|
|
|
|
/*
|
|
* Presumeably, someone has already written to the
|
|
* fs_api_buffer, and now they are reading the node the
|
|
* response, so now we will actually issue the request to the
|
|
* chip and reply. Allocate a request
|
|
*/
|
|
|
|
rq = esas2r_alloc_request(a);
|
|
if (rq == NULL) {
|
|
esas2r_debug("esas2r_read_fs: out of requests");
|
|
mutex_unlock(&a->fs_api_mutex);
|
|
goto busy;
|
|
}
|
|
|
|
rq->comp_cb = fs_api_complete_req;
|
|
|
|
/* Set up the SGCONTEXT for to build the s/g table */
|
|
|
|
sgc.cur_offset = fs->data;
|
|
sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_fs_api;
|
|
|
|
a->fs_api_command_done = 0;
|
|
|
|
if (!esas2r_process_fs_ioctl(a, fs, rq, &sgc)) {
|
|
if (fs->status == ATTO_STS_OUT_OF_RSRC)
|
|
count = -EBUSY;
|
|
|
|
goto dont_wait;
|
|
}
|
|
|
|
/* Now wait around for it to complete. */
|
|
|
|
while (!a->fs_api_command_done)
|
|
wait_event_interruptible(a->fs_api_waiter,
|
|
a->fs_api_command_done);
|
|
;
|
|
dont_wait:
|
|
/* Free the request and keep going */
|
|
mutex_unlock(&a->fs_api_mutex);
|
|
esas2r_free_request(a, (struct esas2r_request *)rq);
|
|
|
|
/* Pick up possible error code from above */
|
|
if (count < 0)
|
|
return count;
|
|
}
|
|
|
|
if (off > a->fs_api_buffer_size)
|
|
return 0;
|
|
|
|
if (count + off > a->fs_api_buffer_size)
|
|
count = a->fs_api_buffer_size - off;
|
|
|
|
if (count < 0)
|
|
return 0;
|
|
|
|
memcpy(buf, a->fs_api_buffer + off, count);
|
|
|
|
return count;
|
|
}
|
|
|
|
/* Handle a call to write firmware via FS_API. */
|
|
int esas2r_write_fs(struct esas2r_adapter *a, const char *buf, long off,
|
|
int count)
|
|
{
|
|
if (off == 0) {
|
|
struct esas2r_ioctl_fs *fs = (struct esas2r_ioctl_fs *)buf;
|
|
u32 length = fs->command.length + offsetof(
|
|
struct esas2r_ioctl_fs,
|
|
data);
|
|
|
|
/*
|
|
* Special case, for BEGIN commands, the length field
|
|
* is lying to us, so just get enough for the header.
|
|
*/
|
|
|
|
if (fs->command.command == ESAS2R_FS_CMD_BEGINW)
|
|
length = offsetof(struct esas2r_ioctl_fs, data);
|
|
|
|
/*
|
|
* Beginning a command. We assume we'll get at least
|
|
* enough in the first write so we can look at the
|
|
* header and see how much we need to alloc.
|
|
*/
|
|
|
|
if (count < offsetof(struct esas2r_ioctl_fs, data))
|
|
return -EINVAL;
|
|
|
|
/* Allocate a buffer or use the existing buffer. */
|
|
if (a->fs_api_buffer) {
|
|
if (a->fs_api_buffer_size < length) {
|
|
/* Free too-small buffer and get a new one */
|
|
dma_free_coherent(&a->pcid->dev,
|
|
(size_t)a->fs_api_buffer_size,
|
|
a->fs_api_buffer,
|
|
(dma_addr_t)a->ppfs_api_buffer);
|
|
|
|
goto re_allocate_buffer;
|
|
}
|
|
} else {
|
|
re_allocate_buffer:
|
|
a->fs_api_buffer_size = length;
|
|
|
|
a->fs_api_buffer = dma_alloc_coherent(&a->pcid->dev,
|
|
(size_t)a->fs_api_buffer_size,
|
|
(dma_addr_t *)&a->ppfs_api_buffer,
|
|
GFP_KERNEL);
|
|
}
|
|
}
|
|
|
|
if (!a->fs_api_buffer)
|
|
return -ENOMEM;
|
|
|
|
if (off > a->fs_api_buffer_size)
|
|
return 0;
|
|
|
|
if (count + off > a->fs_api_buffer_size)
|
|
count = a->fs_api_buffer_size - off;
|
|
|
|
if (count < 1)
|
|
return 0;
|
|
|
|
memcpy(a->fs_api_buffer + off, buf, count);
|
|
|
|
return count;
|
|
}
|