643 lines
17 KiB
C
643 lines
17 KiB
C
/*
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* Aic94xx SAS/SATA Tasks
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*
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* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
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* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
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*
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* This file is licensed under GPLv2.
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*
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* This file is part of the aic94xx driver.
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*
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* The aic94xx driver is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of the
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* License.
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*
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* The aic94xx driver 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 GNU
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* General Public License for more details.
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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 the aic94xx driver; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include <linux/spinlock.h>
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#include "aic94xx.h"
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#include "aic94xx_sas.h"
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#include "aic94xx_hwi.h"
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static void asd_unbuild_ata_ascb(struct asd_ascb *a);
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static void asd_unbuild_smp_ascb(struct asd_ascb *a);
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static void asd_unbuild_ssp_ascb(struct asd_ascb *a);
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static inline void asd_can_dequeue(struct asd_ha_struct *asd_ha, int num)
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{
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unsigned long flags;
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spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
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asd_ha->seq.can_queue += num;
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spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
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}
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/* PCI_DMA_... to our direction translation.
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*/
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static const u8 data_dir_flags[] = {
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[PCI_DMA_BIDIRECTIONAL] = DATA_DIR_BYRECIPIENT, /* UNSPECIFIED */
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[PCI_DMA_TODEVICE] = DATA_DIR_OUT, /* OUTBOUND */
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[PCI_DMA_FROMDEVICE] = DATA_DIR_IN, /* INBOUND */
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[PCI_DMA_NONE] = DATA_DIR_NONE, /* NO TRANSFER */
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};
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static inline int asd_map_scatterlist(struct sas_task *task,
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struct sg_el *sg_arr,
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unsigned long gfp_flags)
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{
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struct asd_ascb *ascb = task->lldd_task;
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struct asd_ha_struct *asd_ha = ascb->ha;
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struct scatterlist *sc;
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int num_sg, res;
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if (task->data_dir == PCI_DMA_NONE)
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return 0;
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if (task->num_scatter == 0) {
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void *p = task->scatter;
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dma_addr_t dma = pci_map_single(asd_ha->pcidev, p,
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task->total_xfer_len,
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task->data_dir);
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sg_arr[0].bus_addr = cpu_to_le64((u64)dma);
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sg_arr[0].size = cpu_to_le32(task->total_xfer_len);
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sg_arr[0].flags |= ASD_SG_EL_LIST_EOL;
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return 0;
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}
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num_sg = pci_map_sg(asd_ha->pcidev, task->scatter, task->num_scatter,
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task->data_dir);
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if (num_sg == 0)
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return -ENOMEM;
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if (num_sg > 3) {
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int i;
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ascb->sg_arr = asd_alloc_coherent(asd_ha,
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num_sg*sizeof(struct sg_el),
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gfp_flags);
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if (!ascb->sg_arr) {
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res = -ENOMEM;
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goto err_unmap;
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}
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for (sc = task->scatter, i = 0; i < num_sg; i++, sc++) {
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struct sg_el *sg =
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&((struct sg_el *)ascb->sg_arr->vaddr)[i];
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sg->bus_addr = cpu_to_le64((u64)sg_dma_address(sc));
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sg->size = cpu_to_le32((u32)sg_dma_len(sc));
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if (i == num_sg-1)
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sg->flags |= ASD_SG_EL_LIST_EOL;
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}
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for (sc = task->scatter, i = 0; i < 2; i++, sc++) {
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sg_arr[i].bus_addr =
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cpu_to_le64((u64)sg_dma_address(sc));
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sg_arr[i].size = cpu_to_le32((u32)sg_dma_len(sc));
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}
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sg_arr[1].next_sg_offs = 2 * sizeof(*sg_arr);
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sg_arr[1].flags |= ASD_SG_EL_LIST_EOS;
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memset(&sg_arr[2], 0, sizeof(*sg_arr));
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sg_arr[2].bus_addr=cpu_to_le64((u64)ascb->sg_arr->dma_handle);
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} else {
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int i;
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for (sc = task->scatter, i = 0; i < num_sg; i++, sc++) {
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sg_arr[i].bus_addr =
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cpu_to_le64((u64)sg_dma_address(sc));
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sg_arr[i].size = cpu_to_le32((u32)sg_dma_len(sc));
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}
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sg_arr[i-1].flags |= ASD_SG_EL_LIST_EOL;
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}
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return 0;
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err_unmap:
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pci_unmap_sg(asd_ha->pcidev, task->scatter, task->num_scatter,
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task->data_dir);
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return res;
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}
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static inline void asd_unmap_scatterlist(struct asd_ascb *ascb)
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{
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struct asd_ha_struct *asd_ha = ascb->ha;
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struct sas_task *task = ascb->uldd_task;
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if (task->data_dir == PCI_DMA_NONE)
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return;
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if (task->num_scatter == 0) {
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dma_addr_t dma = (dma_addr_t)
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le64_to_cpu(ascb->scb->ssp_task.sg_element[0].bus_addr);
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pci_unmap_single(ascb->ha->pcidev, dma, task->total_xfer_len,
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task->data_dir);
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return;
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}
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asd_free_coherent(asd_ha, ascb->sg_arr);
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pci_unmap_sg(asd_ha->pcidev, task->scatter, task->num_scatter,
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task->data_dir);
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}
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/* ---------- Task complete tasklet ---------- */
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static void asd_get_response_tasklet(struct asd_ascb *ascb,
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struct done_list_struct *dl)
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{
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struct asd_ha_struct *asd_ha = ascb->ha;
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struct sas_task *task = ascb->uldd_task;
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struct task_status_struct *ts = &task->task_status;
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unsigned long flags;
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struct tc_resp_sb_struct {
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__le16 index_escb;
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u8 len_lsb;
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u8 flags;
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} __attribute__ ((packed)) *resp_sb = (void *) dl->status_block;
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/* int size = ((resp_sb->flags & 7) << 8) | resp_sb->len_lsb; */
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int edb_id = ((resp_sb->flags & 0x70) >> 4)-1;
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struct asd_ascb *escb;
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struct asd_dma_tok *edb;
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void *r;
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spin_lock_irqsave(&asd_ha->seq.tc_index_lock, flags);
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escb = asd_tc_index_find(&asd_ha->seq,
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(int)le16_to_cpu(resp_sb->index_escb));
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spin_unlock_irqrestore(&asd_ha->seq.tc_index_lock, flags);
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if (!escb) {
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ASD_DPRINTK("Uh-oh! No escb for this dl?!\n");
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return;
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}
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ts->buf_valid_size = 0;
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edb = asd_ha->seq.edb_arr[edb_id + escb->edb_index];
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r = edb->vaddr;
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if (task->task_proto == SAS_PROTO_SSP) {
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struct ssp_response_iu *iu =
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r + 16 + sizeof(struct ssp_frame_hdr);
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ts->residual = le32_to_cpu(*(__le32 *)r);
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ts->resp = SAS_TASK_COMPLETE;
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if (iu->datapres == 0)
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ts->stat = iu->status;
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else if (iu->datapres == 1)
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ts->stat = iu->resp_data[3];
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else if (iu->datapres == 2) {
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ts->stat = SAM_CHECK_COND;
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ts->buf_valid_size = min((u32) SAS_STATUS_BUF_SIZE,
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be32_to_cpu(iu->sense_data_len));
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memcpy(ts->buf, iu->sense_data, ts->buf_valid_size);
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if (iu->status != SAM_CHECK_COND) {
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ASD_DPRINTK("device %llx sent sense data, but "
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"stat(0x%x) is not CHECK_CONDITION"
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"\n",
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SAS_ADDR(task->dev->sas_addr),
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ts->stat);
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}
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}
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} else {
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struct ata_task_resp *resp = (void *) &ts->buf[0];
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ts->residual = le32_to_cpu(*(__le32 *)r);
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if (SAS_STATUS_BUF_SIZE >= sizeof(*resp)) {
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resp->frame_len = le16_to_cpu(*(__le16 *)(r+6));
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memcpy(&resp->ending_fis[0], r+16, 24);
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ts->buf_valid_size = sizeof(*resp);
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}
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}
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asd_invalidate_edb(escb, edb_id);
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}
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static void asd_task_tasklet_complete(struct asd_ascb *ascb,
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struct done_list_struct *dl)
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{
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struct sas_task *task = ascb->uldd_task;
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struct task_status_struct *ts = &task->task_status;
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unsigned long flags;
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u8 opcode = dl->opcode;
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asd_can_dequeue(ascb->ha, 1);
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Again:
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switch (opcode) {
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case TC_NO_ERROR:
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ts->resp = SAS_TASK_COMPLETE;
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ts->stat = SAM_GOOD;
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break;
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case TC_UNDERRUN:
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ts->resp = SAS_TASK_COMPLETE;
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ts->stat = SAS_DATA_UNDERRUN;
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ts->residual = le32_to_cpu(*(__le32 *)dl->status_block);
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break;
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case TC_OVERRUN:
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ts->resp = SAS_TASK_COMPLETE;
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ts->stat = SAS_DATA_OVERRUN;
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ts->residual = 0;
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break;
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case TC_SSP_RESP:
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case TC_ATA_RESP:
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ts->resp = SAS_TASK_COMPLETE;
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ts->stat = SAS_PROTO_RESPONSE;
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asd_get_response_tasklet(ascb, dl);
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break;
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case TF_OPEN_REJECT:
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ts->resp = SAS_TASK_UNDELIVERED;
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ts->stat = SAS_OPEN_REJECT;
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if (dl->status_block[1] & 2)
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ts->open_rej_reason = 1 + dl->status_block[2];
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else if (dl->status_block[1] & 1)
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ts->open_rej_reason = (dl->status_block[2] >> 4)+10;
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else
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ts->open_rej_reason = SAS_OREJ_UNKNOWN;
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break;
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case TF_OPEN_TO:
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ts->resp = SAS_TASK_UNDELIVERED;
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ts->stat = SAS_OPEN_TO;
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break;
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case TF_PHY_DOWN:
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case TU_PHY_DOWN:
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ts->resp = SAS_TASK_UNDELIVERED;
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ts->stat = SAS_PHY_DOWN;
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break;
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case TI_PHY_DOWN:
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ts->resp = SAS_TASK_COMPLETE;
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ts->stat = SAS_PHY_DOWN;
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break;
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case TI_BREAK:
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case TI_PROTO_ERR:
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case TI_NAK:
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case TI_ACK_NAK_TO:
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case TF_SMP_XMIT_RCV_ERR:
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case TC_ATA_R_ERR_RECV:
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ts->resp = SAS_TASK_COMPLETE;
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ts->stat = SAS_INTERRUPTED;
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break;
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case TF_BREAK:
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case TU_BREAK:
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case TU_ACK_NAK_TO:
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case TF_SMPRSP_TO:
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ts->resp = SAS_TASK_UNDELIVERED;
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ts->stat = SAS_DEV_NO_RESPONSE;
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break;
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case TF_NAK_RECV:
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ts->resp = SAS_TASK_COMPLETE;
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ts->stat = SAS_NAK_R_ERR;
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break;
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case TA_I_T_NEXUS_LOSS:
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opcode = dl->status_block[0];
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goto Again;
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break;
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case TF_INV_CONN_HANDLE:
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ts->resp = SAS_TASK_UNDELIVERED;
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ts->stat = SAS_DEVICE_UNKNOWN;
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break;
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case TF_REQUESTED_N_PENDING:
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ts->resp = SAS_TASK_UNDELIVERED;
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ts->stat = SAS_PENDING;
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break;
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case TC_TASK_CLEARED:
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case TA_ON_REQ:
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ts->resp = SAS_TASK_COMPLETE;
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ts->stat = SAS_ABORTED_TASK;
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break;
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case TF_NO_SMP_CONN:
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case TF_TMF_NO_CTX:
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case TF_TMF_NO_TAG:
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case TF_TMF_TAG_FREE:
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case TF_TMF_TASK_DONE:
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case TF_TMF_NO_CONN_HANDLE:
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case TF_IRTT_TO:
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case TF_IU_SHORT:
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case TF_DATA_OFFS_ERR:
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ts->resp = SAS_TASK_UNDELIVERED;
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ts->stat = SAS_DEV_NO_RESPONSE;
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break;
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case TC_LINK_ADM_RESP:
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case TC_CONTROL_PHY:
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case TC_RESUME:
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case TC_PARTIAL_SG_LIST:
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default:
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ASD_DPRINTK("%s: dl opcode: 0x%x?\n", __FUNCTION__, opcode);
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break;
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}
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switch (task->task_proto) {
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case SATA_PROTO:
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case SAS_PROTO_STP:
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asd_unbuild_ata_ascb(ascb);
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break;
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case SAS_PROTO_SMP:
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asd_unbuild_smp_ascb(ascb);
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break;
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case SAS_PROTO_SSP:
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asd_unbuild_ssp_ascb(ascb);
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default:
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break;
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}
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spin_lock_irqsave(&task->task_state_lock, flags);
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task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
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task->task_state_flags |= SAS_TASK_STATE_DONE;
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if (unlikely((task->task_state_flags & SAS_TASK_STATE_ABORTED))) {
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spin_unlock_irqrestore(&task->task_state_lock, flags);
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ASD_DPRINTK("task 0x%p done with opcode 0x%x resp 0x%x "
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"stat 0x%x but aborted by upper layer!\n",
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task, opcode, ts->resp, ts->stat);
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complete(&ascb->completion);
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} else {
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spin_unlock_irqrestore(&task->task_state_lock, flags);
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task->lldd_task = NULL;
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asd_ascb_free(ascb);
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mb();
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task->task_done(task);
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}
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}
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/* ---------- ATA ---------- */
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static int asd_build_ata_ascb(struct asd_ascb *ascb, struct sas_task *task,
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unsigned long gfp_flags)
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{
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struct domain_device *dev = task->dev;
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struct scb *scb;
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u8 flags;
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int res = 0;
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scb = ascb->scb;
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if (unlikely(task->ata_task.device_control_reg_update))
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scb->header.opcode = CONTROL_ATA_DEV;
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else if (dev->sata_dev.command_set == ATA_COMMAND_SET)
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scb->header.opcode = INITIATE_ATA_TASK;
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else
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scb->header.opcode = INITIATE_ATAPI_TASK;
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scb->ata_task.proto_conn_rate = (1 << 5); /* STP */
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if (dev->port->oob_mode == SAS_OOB_MODE)
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scb->ata_task.proto_conn_rate |= dev->linkrate;
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scb->ata_task.total_xfer_len = cpu_to_le32(task->total_xfer_len);
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scb->ata_task.fis = task->ata_task.fis;
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scb->ata_task.fis.fis_type = 0x27;
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if (likely(!task->ata_task.device_control_reg_update))
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scb->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */
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scb->ata_task.fis.flags &= 0xF0; /* PM_PORT field shall be 0 */
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if (dev->sata_dev.command_set == ATAPI_COMMAND_SET)
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memcpy(scb->ata_task.atapi_packet, task->ata_task.atapi_packet,
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16);
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scb->ata_task.sister_scb = cpu_to_le16(0xFFFF);
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scb->ata_task.conn_handle = cpu_to_le16(
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(u16)(unsigned long)dev->lldd_dev);
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if (likely(!task->ata_task.device_control_reg_update)) {
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flags = 0;
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if (task->ata_task.dma_xfer)
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flags |= DATA_XFER_MODE_DMA;
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if (task->ata_task.use_ncq &&
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dev->sata_dev.command_set != ATAPI_COMMAND_SET)
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flags |= ATA_Q_TYPE_NCQ;
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flags |= data_dir_flags[task->data_dir];
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scb->ata_task.ata_flags = flags;
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scb->ata_task.retry_count = task->ata_task.retry_count;
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flags = 0;
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if (task->ata_task.set_affil_pol)
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flags |= SET_AFFIL_POLICY;
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if (task->ata_task.stp_affil_pol)
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flags |= STP_AFFIL_POLICY;
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scb->ata_task.flags = flags;
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}
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ascb->tasklet_complete = asd_task_tasklet_complete;
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if (likely(!task->ata_task.device_control_reg_update))
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res = asd_map_scatterlist(task, scb->ata_task.sg_element,
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gfp_flags);
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return res;
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}
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static void asd_unbuild_ata_ascb(struct asd_ascb *a)
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{
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asd_unmap_scatterlist(a);
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}
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/* ---------- SMP ---------- */
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static int asd_build_smp_ascb(struct asd_ascb *ascb, struct sas_task *task,
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unsigned long gfp_flags)
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{
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struct asd_ha_struct *asd_ha = ascb->ha;
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struct domain_device *dev = task->dev;
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struct scb *scb;
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pci_map_sg(asd_ha->pcidev, &task->smp_task.smp_req, 1,
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PCI_DMA_FROMDEVICE);
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pci_map_sg(asd_ha->pcidev, &task->smp_task.smp_resp, 1,
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PCI_DMA_FROMDEVICE);
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scb = ascb->scb;
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scb->header.opcode = INITIATE_SMP_TASK;
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|
|
|
scb->smp_task.proto_conn_rate = dev->linkrate;
|
|
|
|
scb->smp_task.smp_req.bus_addr =
|
|
cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_req));
|
|
scb->smp_task.smp_req.size =
|
|
cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_req)-4);
|
|
|
|
scb->smp_task.smp_resp.bus_addr =
|
|
cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_resp));
|
|
scb->smp_task.smp_resp.size =
|
|
cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_resp)-4);
|
|
|
|
scb->smp_task.sister_scb = cpu_to_le16(0xFFFF);
|
|
scb->smp_task.conn_handle = cpu_to_le16((u16)
|
|
(unsigned long)dev->lldd_dev);
|
|
|
|
ascb->tasklet_complete = asd_task_tasklet_complete;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void asd_unbuild_smp_ascb(struct asd_ascb *a)
|
|
{
|
|
struct sas_task *task = a->uldd_task;
|
|
|
|
BUG_ON(!task);
|
|
pci_unmap_sg(a->ha->pcidev, &task->smp_task.smp_req, 1,
|
|
PCI_DMA_FROMDEVICE);
|
|
pci_unmap_sg(a->ha->pcidev, &task->smp_task.smp_resp, 1,
|
|
PCI_DMA_FROMDEVICE);
|
|
}
|
|
|
|
/* ---------- SSP ---------- */
|
|
|
|
static int asd_build_ssp_ascb(struct asd_ascb *ascb, struct sas_task *task,
|
|
unsigned long gfp_flags)
|
|
{
|
|
struct domain_device *dev = task->dev;
|
|
struct scb *scb;
|
|
int res = 0;
|
|
|
|
scb = ascb->scb;
|
|
|
|
scb->header.opcode = INITIATE_SSP_TASK;
|
|
|
|
scb->ssp_task.proto_conn_rate = (1 << 4); /* SSP */
|
|
scb->ssp_task.proto_conn_rate |= dev->linkrate;
|
|
scb->ssp_task.total_xfer_len = cpu_to_le32(task->total_xfer_len);
|
|
scb->ssp_task.ssp_frame.frame_type = SSP_DATA;
|
|
memcpy(scb->ssp_task.ssp_frame.hashed_dest_addr, dev->hashed_sas_addr,
|
|
HASHED_SAS_ADDR_SIZE);
|
|
memcpy(scb->ssp_task.ssp_frame.hashed_src_addr,
|
|
dev->port->ha->hashed_sas_addr, HASHED_SAS_ADDR_SIZE);
|
|
scb->ssp_task.ssp_frame.tptt = cpu_to_be16(0xFFFF);
|
|
|
|
memcpy(scb->ssp_task.ssp_cmd.lun, task->ssp_task.LUN, 8);
|
|
if (task->ssp_task.enable_first_burst)
|
|
scb->ssp_task.ssp_cmd.efb_prio_attr |= EFB_MASK;
|
|
scb->ssp_task.ssp_cmd.efb_prio_attr |= (task->ssp_task.task_prio << 3);
|
|
scb->ssp_task.ssp_cmd.efb_prio_attr |= (task->ssp_task.task_attr & 7);
|
|
memcpy(scb->ssp_task.ssp_cmd.cdb, task->ssp_task.cdb, 16);
|
|
|
|
scb->ssp_task.sister_scb = cpu_to_le16(0xFFFF);
|
|
scb->ssp_task.conn_handle = cpu_to_le16(
|
|
(u16)(unsigned long)dev->lldd_dev);
|
|
scb->ssp_task.data_dir = data_dir_flags[task->data_dir];
|
|
scb->ssp_task.retry_count = scb->ssp_task.retry_count;
|
|
|
|
ascb->tasklet_complete = asd_task_tasklet_complete;
|
|
|
|
res = asd_map_scatterlist(task, scb->ssp_task.sg_element, gfp_flags);
|
|
|
|
return res;
|
|
}
|
|
|
|
static void asd_unbuild_ssp_ascb(struct asd_ascb *a)
|
|
{
|
|
asd_unmap_scatterlist(a);
|
|
}
|
|
|
|
/* ---------- Execute Task ---------- */
|
|
|
|
static inline int asd_can_queue(struct asd_ha_struct *asd_ha, int num)
|
|
{
|
|
int res = 0;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
|
|
if ((asd_ha->seq.can_queue - num) < 0)
|
|
res = -SAS_QUEUE_FULL;
|
|
else
|
|
asd_ha->seq.can_queue -= num;
|
|
spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
|
|
|
|
return res;
|
|
}
|
|
|
|
int asd_execute_task(struct sas_task *task, const int num,
|
|
unsigned long gfp_flags)
|
|
{
|
|
int res = 0;
|
|
LIST_HEAD(alist);
|
|
struct sas_task *t = task;
|
|
struct asd_ascb *ascb = NULL, *a;
|
|
struct asd_ha_struct *asd_ha = task->dev->port->ha->lldd_ha;
|
|
|
|
res = asd_can_queue(asd_ha, num);
|
|
if (res)
|
|
return res;
|
|
|
|
res = num;
|
|
ascb = asd_ascb_alloc_list(asd_ha, &res, gfp_flags);
|
|
if (res) {
|
|
res = -ENOMEM;
|
|
goto out_err;
|
|
}
|
|
|
|
__list_add(&alist, ascb->list.prev, &ascb->list);
|
|
list_for_each_entry(a, &alist, list) {
|
|
a->uldd_task = t;
|
|
t->lldd_task = a;
|
|
t = list_entry(t->list.next, struct sas_task, list);
|
|
}
|
|
list_for_each_entry(a, &alist, list) {
|
|
t = a->uldd_task;
|
|
a->uldd_timer = 1;
|
|
if (t->task_proto & SAS_PROTO_STP)
|
|
t->task_proto = SAS_PROTO_STP;
|
|
switch (t->task_proto) {
|
|
case SATA_PROTO:
|
|
case SAS_PROTO_STP:
|
|
res = asd_build_ata_ascb(a, t, gfp_flags);
|
|
break;
|
|
case SAS_PROTO_SMP:
|
|
res = asd_build_smp_ascb(a, t, gfp_flags);
|
|
break;
|
|
case SAS_PROTO_SSP:
|
|
res = asd_build_ssp_ascb(a, t, gfp_flags);
|
|
break;
|
|
default:
|
|
asd_printk("unknown sas_task proto: 0x%x\n",
|
|
t->task_proto);
|
|
res = -ENOMEM;
|
|
break;
|
|
}
|
|
if (res)
|
|
goto out_err_unmap;
|
|
}
|
|
list_del_init(&alist);
|
|
|
|
res = asd_post_ascb_list(asd_ha, ascb, num);
|
|
if (unlikely(res)) {
|
|
a = NULL;
|
|
__list_add(&alist, ascb->list.prev, &ascb->list);
|
|
goto out_err_unmap;
|
|
}
|
|
|
|
return 0;
|
|
out_err_unmap:
|
|
{
|
|
struct asd_ascb *b = a;
|
|
list_for_each_entry(a, &alist, list) {
|
|
if (a == b)
|
|
break;
|
|
t = a->uldd_task;
|
|
switch (t->task_proto) {
|
|
case SATA_PROTO:
|
|
case SAS_PROTO_STP:
|
|
asd_unbuild_ata_ascb(a);
|
|
break;
|
|
case SAS_PROTO_SMP:
|
|
asd_unbuild_smp_ascb(a);
|
|
break;
|
|
case SAS_PROTO_SSP:
|
|
asd_unbuild_ssp_ascb(a);
|
|
default:
|
|
break;
|
|
}
|
|
t->lldd_task = NULL;
|
|
}
|
|
}
|
|
list_del_init(&alist);
|
|
out_err:
|
|
if (ascb)
|
|
asd_ascb_free_list(ascb);
|
|
asd_can_dequeue(asd_ha, num);
|
|
return res;
|
|
}
|