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626 lines
16 KiB
626 lines
16 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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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 <[email protected]> |
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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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|
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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 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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|
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/* DMA_... to our direction translation. |
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*/ |
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static const u8 data_dir_flags[] = { |
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[DMA_BIDIRECTIONAL] = DATA_DIR_BYRECIPIENT, /* UNSPECIFIED */ |
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[DMA_TO_DEVICE] = DATA_DIR_OUT, /* OUTBOUND */ |
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[DMA_FROM_DEVICE] = DATA_DIR_IN, /* INBOUND */ |
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[DMA_NONE] = DATA_DIR_NONE, /* NO TRANSFER */ |
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}; |
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static int asd_map_scatterlist(struct sas_task *task, |
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struct sg_el *sg_arr, |
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gfp_t 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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|
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if (task->data_dir == DMA_NONE) |
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return 0; |
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|
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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 = dma_map_single(&asd_ha->pcidev->dev, 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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|
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/* STP tasks come from libata which has already mapped |
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* the SG list */ |
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if (sas_protocol_ata(task->task_proto)) |
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num_sg = task->num_scatter; |
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else |
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num_sg = dma_map_sg(&asd_ha->pcidev->dev, task->scatter, |
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task->num_scatter, task->data_dir); |
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if (num_sg == 0) |
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return -ENOMEM; |
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|
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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_each_sg(task->scatter, sc, num_sg, i) { |
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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_each_sg(task->scatter, sc, 2, i) { |
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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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|
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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_each_sg(task->scatter, sc, num_sg, i) { |
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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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if (sas_protocol_ata(task->task_proto)) |
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dma_unmap_sg(&asd_ha->pcidev->dev, task->scatter, |
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task->num_scatter, task->data_dir); |
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return res; |
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} |
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static 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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|
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if (task->data_dir == 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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dma_unmap_single(&ascb->ha->pcidev->dev, dma, |
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task->total_xfer_len, 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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if (task->task_proto != SAS_PROTOCOL_STP) |
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dma_unmap_sg(&asd_ha->pcidev->dev, task->scatter, |
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task->num_scatter, task->data_dir); |
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} |
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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_PROTOCOL_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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sas_ssp_task_response(&asd_ha->pcidev->dev, task, iu); |
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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, ATA_RESP_FIS_SIZE); |
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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 = SAS_SAM_STAT_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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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", __func__, opcode); |
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break; |
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} |
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switch (task->task_proto) { |
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case SAS_PROTOCOL_SATA: |
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case SAS_PROTOCOL_STP: |
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asd_unbuild_ata_ascb(ascb); |
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break; |
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case SAS_PROTOCOL_SMP: |
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asd_unbuild_smp_ascb(ascb); |
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break; |
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case SAS_PROTOCOL_SSP: |
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asd_unbuild_ssp_ascb(ascb); |
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break; |
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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_AT_INITIATOR; |
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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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struct completion *completion = ascb->completion; |
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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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if (completion) |
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complete(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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gfp_t 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.class == ATA_DEV_ATAPI) |
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scb->header.opcode = INITIATE_ATAPI_TASK; |
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else |
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scb->header.opcode = INITIATE_ATA_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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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.class == ATA_DEV_ATAPI) |
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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.class != ATA_DEV_ATAPI) |
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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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|
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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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|
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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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gfp_t 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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dma_map_sg(&asd_ha->pcidev->dev, &task->smp_task.smp_req, 1, |
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DMA_TO_DEVICE); |
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dma_map_sg(&asd_ha->pcidev->dev, &task->smp_task.smp_resp, 1, |
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DMA_FROM_DEVICE); |
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|
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scb = ascb->scb; |
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|
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scb->header.opcode = INITIATE_SMP_TASK; |
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|
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scb->smp_task.proto_conn_rate = dev->linkrate; |
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|
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scb->smp_task.smp_req.bus_addr = |
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cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_req)); |
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scb->smp_task.smp_req.size = |
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cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_req)-4); |
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|
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scb->smp_task.smp_resp.bus_addr = |
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cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_resp)); |
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scb->smp_task.smp_resp.size = |
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cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_resp)-4); |
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|
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scb->smp_task.sister_scb = cpu_to_le16(0xFFFF); |
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scb->smp_task.conn_handle = cpu_to_le16((u16) |
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(unsigned long)dev->lldd_dev); |
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|
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ascb->tasklet_complete = asd_task_tasklet_complete; |
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|
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return 0; |
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} |
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|
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static void asd_unbuild_smp_ascb(struct asd_ascb *a) |
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{ |
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struct sas_task *task = a->uldd_task; |
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|
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BUG_ON(!task); |
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dma_unmap_sg(&a->ha->pcidev->dev, &task->smp_task.smp_req, 1, |
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DMA_TO_DEVICE); |
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dma_unmap_sg(&a->ha->pcidev->dev, &task->smp_task.smp_resp, 1, |
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DMA_FROM_DEVICE); |
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} |
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|
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/* ---------- SSP ---------- */ |
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|
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static int asd_build_ssp_ascb(struct asd_ascb *ascb, struct sas_task *task, |
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gfp_t 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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int res = 0; |
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|
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scb = ascb->scb; |
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|
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scb->header.opcode = INITIATE_SSP_TASK; |
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|
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scb->ssp_task.proto_conn_rate = (1 << 4); /* SSP */ |
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scb->ssp_task.proto_conn_rate |= dev->linkrate; |
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scb->ssp_task.total_xfer_len = cpu_to_le32(task->total_xfer_len); |
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scb->ssp_task.ssp_frame.frame_type = SSP_DATA; |
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memcpy(scb->ssp_task.ssp_frame.hashed_dest_addr, dev->hashed_sas_addr, |
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HASHED_SAS_ADDR_SIZE); |
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memcpy(scb->ssp_task.ssp_frame.hashed_src_addr, |
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dev->port->ha->hashed_sas_addr, HASHED_SAS_ADDR_SIZE); |
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scb->ssp_task.ssp_frame.tptt = cpu_to_be16(0xFFFF); |
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|
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memcpy(scb->ssp_task.ssp_cmd.lun, task->ssp_task.LUN, 8); |
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if (task->ssp_task.enable_first_burst) |
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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.cmd->cmnd, |
|
task->ssp_task.cmd->cmd_len); |
|
|
|
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 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, gfp_t 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; |
|
unsigned long flags; |
|
|
|
res = asd_can_queue(asd_ha, 1); |
|
if (res) |
|
return res; |
|
|
|
res = 1; |
|
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; |
|
break; |
|
} |
|
list_for_each_entry(a, &alist, list) { |
|
t = a->uldd_task; |
|
a->uldd_timer = 1; |
|
if (t->task_proto & SAS_PROTOCOL_STP) |
|
t->task_proto = SAS_PROTOCOL_STP; |
|
switch (t->task_proto) { |
|
case SAS_PROTOCOL_SATA: |
|
case SAS_PROTOCOL_STP: |
|
res = asd_build_ata_ascb(a, t, gfp_flags); |
|
break; |
|
case SAS_PROTOCOL_SMP: |
|
res = asd_build_smp_ascb(a, t, gfp_flags); |
|
break; |
|
case SAS_PROTOCOL_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; |
|
|
|
spin_lock_irqsave(&t->task_state_lock, flags); |
|
t->task_state_flags |= SAS_TASK_AT_INITIATOR; |
|
spin_unlock_irqrestore(&t->task_state_lock, flags); |
|
} |
|
list_del_init(&alist); |
|
|
|
res = asd_post_ascb_list(asd_ha, ascb, 1); |
|
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; |
|
spin_lock_irqsave(&t->task_state_lock, flags); |
|
t->task_state_flags &= ~SAS_TASK_AT_INITIATOR; |
|
spin_unlock_irqrestore(&t->task_state_lock, flags); |
|
switch (t->task_proto) { |
|
case SAS_PROTOCOL_SATA: |
|
case SAS_PROTOCOL_STP: |
|
asd_unbuild_ata_ascb(a); |
|
break; |
|
case SAS_PROTOCOL_SMP: |
|
asd_unbuild_smp_ascb(a); |
|
break; |
|
case SAS_PROTOCOL_SSP: |
|
asd_unbuild_ssp_ascb(a); |
|
break; |
|
default: |
|
break; |
|
} |
|
t->lldd_task = NULL; |
|
} |
|
} |
|
list_del_init(&alist); |
|
out_err: |
|
if (ascb) |
|
asd_ascb_free_list(ascb); |
|
asd_can_dequeue(asd_ha, 1); |
|
return res; |
|
}
|
|
|