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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 19:10:51 +07:00
ieee1394: sbp2: fix bogus dma mapping
Need to use a PCI device, not a FireWire host device. Problem found by Andreas Schwab, mistake pointed out by Benjamin Herrenschmidt. http://ozlabs.org/pipermail/linuxppc-dev/2006-December/029595.html Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Tested-by: Andreas Schwab <schwab@suse.de>
This commit is contained in:
Stefan Richter
parent
b2bb550c4a
commit
97d552e35d
@ -490,11 +490,11 @@ static int sbp2util_create_command_orb_pool(struct sbp2_lu *lu)
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spin_unlock_irqrestore(&lu->cmd_orb_lock, flags);
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return -ENOMEM;
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}
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cmd->command_orb_dma = dma_map_single(&hi->host->device,
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cmd->command_orb_dma = dma_map_single(hi->host->device.parent,
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&cmd->command_orb,
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sizeof(struct sbp2_command_orb),
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DMA_TO_DEVICE);
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cmd->sge_dma = dma_map_single(&hi->host->device,
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cmd->sge_dma = dma_map_single(hi->host->device.parent,
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&cmd->scatter_gather_element,
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sizeof(cmd->scatter_gather_element),
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DMA_BIDIRECTIONAL);
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@ -516,10 +516,11 @@ static void sbp2util_remove_command_orb_pool(struct sbp2_lu *lu)
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if (!list_empty(&lu->cmd_orb_completed))
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list_for_each_safe(lh, next, &lu->cmd_orb_completed) {
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cmd = list_entry(lh, struct sbp2_command_info, list);
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dma_unmap_single(&host->device, cmd->command_orb_dma,
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dma_unmap_single(host->device.parent,
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cmd->command_orb_dma,
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sizeof(struct sbp2_command_orb),
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DMA_TO_DEVICE);
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dma_unmap_single(&host->device, cmd->sge_dma,
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dma_unmap_single(host->device.parent, cmd->sge_dma,
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sizeof(cmd->scatter_gather_element),
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DMA_BIDIRECTIONAL);
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kfree(cmd);
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@ -601,17 +602,17 @@ static void sbp2util_mark_command_completed(struct sbp2_lu *lu,
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if (cmd->cmd_dma) {
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if (cmd->dma_type == CMD_DMA_SINGLE)
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dma_unmap_single(&host->device, cmd->cmd_dma,
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dma_unmap_single(host->device.parent, cmd->cmd_dma,
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cmd->dma_size, cmd->dma_dir);
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else if (cmd->dma_type == CMD_DMA_PAGE)
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dma_unmap_page(&host->device, cmd->cmd_dma,
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dma_unmap_page(host->device.parent, cmd->cmd_dma,
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cmd->dma_size, cmd->dma_dir);
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/* XXX: Check for CMD_DMA_NONE bug */
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cmd->dma_type = CMD_DMA_NONE;
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cmd->cmd_dma = 0;
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}
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if (cmd->sge_buffer) {
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dma_unmap_sg(&host->device, cmd->sge_buffer,
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dma_unmap_sg(host->device.parent, cmd->sge_buffer,
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cmd->dma_size, cmd->dma_dir);
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cmd->sge_buffer = NULL;
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}
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@ -836,37 +837,37 @@ static int sbp2_start_device(struct sbp2_lu *lu)
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struct sbp2_fwhost_info *hi = lu->hi;
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int error;
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lu->login_response = dma_alloc_coherent(&hi->host->device,
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lu->login_response = dma_alloc_coherent(hi->host->device.parent,
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sizeof(struct sbp2_login_response),
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&lu->login_response_dma, GFP_KERNEL);
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if (!lu->login_response)
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goto alloc_fail;
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lu->query_logins_orb = dma_alloc_coherent(&hi->host->device,
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lu->query_logins_orb = dma_alloc_coherent(hi->host->device.parent,
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sizeof(struct sbp2_query_logins_orb),
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&lu->query_logins_orb_dma, GFP_KERNEL);
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if (!lu->query_logins_orb)
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goto alloc_fail;
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lu->query_logins_response = dma_alloc_coherent(&hi->host->device,
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lu->query_logins_response = dma_alloc_coherent(hi->host->device.parent,
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sizeof(struct sbp2_query_logins_response),
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&lu->query_logins_response_dma, GFP_KERNEL);
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if (!lu->query_logins_response)
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goto alloc_fail;
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lu->reconnect_orb = dma_alloc_coherent(&hi->host->device,
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lu->reconnect_orb = dma_alloc_coherent(hi->host->device.parent,
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sizeof(struct sbp2_reconnect_orb),
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&lu->reconnect_orb_dma, GFP_KERNEL);
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if (!lu->reconnect_orb)
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goto alloc_fail;
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lu->logout_orb = dma_alloc_coherent(&hi->host->device,
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lu->logout_orb = dma_alloc_coherent(hi->host->device.parent,
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sizeof(struct sbp2_logout_orb),
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&lu->logout_orb_dma, GFP_KERNEL);
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if (!lu->logout_orb)
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goto alloc_fail;
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lu->login_orb = dma_alloc_coherent(&hi->host->device,
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lu->login_orb = dma_alloc_coherent(hi->host->device.parent,
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sizeof(struct sbp2_login_orb),
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&lu->login_orb_dma, GFP_KERNEL);
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if (!lu->login_orb)
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@ -929,32 +930,32 @@ static void sbp2_remove_device(struct sbp2_lu *lu)
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list_del(&lu->lu_list);
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if (lu->login_response)
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dma_free_coherent(&hi->host->device,
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dma_free_coherent(hi->host->device.parent,
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sizeof(struct sbp2_login_response),
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lu->login_response,
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lu->login_response_dma);
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if (lu->login_orb)
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dma_free_coherent(&hi->host->device,
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dma_free_coherent(hi->host->device.parent,
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sizeof(struct sbp2_login_orb),
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lu->login_orb,
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lu->login_orb_dma);
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if (lu->reconnect_orb)
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dma_free_coherent(&hi->host->device,
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dma_free_coherent(hi->host->device.parent,
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sizeof(struct sbp2_reconnect_orb),
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lu->reconnect_orb,
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lu->reconnect_orb_dma);
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if (lu->logout_orb)
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dma_free_coherent(&hi->host->device,
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dma_free_coherent(hi->host->device.parent,
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sizeof(struct sbp2_logout_orb),
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lu->logout_orb,
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lu->logout_orb_dma);
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if (lu->query_logins_orb)
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dma_free_coherent(&hi->host->device,
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dma_free_coherent(hi->host->device.parent,
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sizeof(struct sbp2_query_logins_orb),
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lu->query_logins_orb,
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lu->query_logins_orb_dma);
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if (lu->query_logins_response)
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dma_free_coherent(&hi->host->device,
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dma_free_coherent(hi->host->device.parent,
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sizeof(struct sbp2_query_logins_response),
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lu->query_logins_response,
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lu->query_logins_response_dma);
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@ -1445,7 +1446,7 @@ static void sbp2_prep_command_orb_sg(struct sbp2_command_orb *orb,
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cmd->dma_size = sgpnt[0].length;
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cmd->dma_type = CMD_DMA_PAGE;
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cmd->cmd_dma = dma_map_page(&hi->host->device,
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cmd->cmd_dma = dma_map_page(hi->host->device.parent,
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sgpnt[0].page, sgpnt[0].offset,
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cmd->dma_size, cmd->dma_dir);
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@ -1457,8 +1458,8 @@ static void sbp2_prep_command_orb_sg(struct sbp2_command_orb *orb,
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&cmd->scatter_gather_element[0];
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u32 sg_count, sg_len;
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dma_addr_t sg_addr;
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int i, count = dma_map_sg(&hi->host->device, sgpnt, scsi_use_sg,
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dma_dir);
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int i, count = dma_map_sg(hi->host->device.parent, sgpnt,
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scsi_use_sg, dma_dir);
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cmd->dma_size = scsi_use_sg;
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cmd->sge_buffer = sgpnt;
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@ -1508,7 +1509,8 @@ static void sbp2_prep_command_orb_no_sg(struct sbp2_command_orb *orb,
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cmd->dma_dir = dma_dir;
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cmd->dma_size = scsi_request_bufflen;
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cmd->dma_type = CMD_DMA_SINGLE;
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cmd->cmd_dma = dma_map_single(&hi->host->device, scsi_request_buffer,
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cmd->cmd_dma = dma_map_single(hi->host->device.parent,
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scsi_request_buffer,
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cmd->dma_size, cmd->dma_dir);
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orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
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orb->misc |= ORB_SET_DIRECTION(orb_direction);
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@ -1626,10 +1628,11 @@ static void sbp2_link_orb_command(struct sbp2_lu *lu,
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size_t length;
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unsigned long flags;
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dma_sync_single_for_device(&hi->host->device, cmd->command_orb_dma,
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dma_sync_single_for_device(hi->host->device.parent,
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cmd->command_orb_dma,
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sizeof(struct sbp2_command_orb),
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DMA_TO_DEVICE);
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dma_sync_single_for_device(&hi->host->device, cmd->sge_dma,
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dma_sync_single_for_device(hi->host->device.parent, cmd->sge_dma,
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sizeof(cmd->scatter_gather_element),
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DMA_BIDIRECTIONAL);
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@ -1655,14 +1658,15 @@ static void sbp2_link_orb_command(struct sbp2_lu *lu,
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* The target's fetch agent may or may not have read this
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* previous ORB yet.
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*/
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dma_sync_single_for_cpu(&hi->host->device, last_orb_dma,
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dma_sync_single_for_cpu(hi->host->device.parent, last_orb_dma,
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sizeof(struct sbp2_command_orb),
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DMA_TO_DEVICE);
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last_orb->next_ORB_lo = cpu_to_be32(cmd->command_orb_dma);
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wmb();
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/* Tells hardware that this pointer is valid */
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last_orb->next_ORB_hi = 0;
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dma_sync_single_for_device(&hi->host->device, last_orb_dma,
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dma_sync_single_for_device(hi->host->device.parent,
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last_orb_dma,
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sizeof(struct sbp2_command_orb),
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DMA_TO_DEVICE);
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addr += SBP2_DOORBELL_OFFSET;
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@ -1790,10 +1794,11 @@ static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid,
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else
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cmd = sbp2util_find_command_for_orb(lu, sb->ORB_offset_lo);
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if (cmd) {
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dma_sync_single_for_cpu(&hi->host->device, cmd->command_orb_dma,
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dma_sync_single_for_cpu(hi->host->device.parent,
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cmd->command_orb_dma,
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sizeof(struct sbp2_command_orb),
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DMA_TO_DEVICE);
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dma_sync_single_for_cpu(&hi->host->device, cmd->sge_dma,
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dma_sync_single_for_cpu(hi->host->device.parent, cmd->sge_dma,
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sizeof(cmd->scatter_gather_element),
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DMA_BIDIRECTIONAL);
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/* Grab SCSI command pointers and check status. */
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@ -1921,10 +1926,11 @@ static void sbp2scsi_complete_all_commands(struct sbp2_lu *lu, u32 status)
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while (!list_empty(&lu->cmd_orb_inuse)) {
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lh = lu->cmd_orb_inuse.next;
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cmd = list_entry(lh, struct sbp2_command_info, list);
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dma_sync_single_for_cpu(&hi->host->device, cmd->command_orb_dma,
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dma_sync_single_for_cpu(hi->host->device.parent,
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cmd->command_orb_dma,
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sizeof(struct sbp2_command_orb),
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DMA_TO_DEVICE);
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dma_sync_single_for_cpu(&hi->host->device, cmd->sge_dma,
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dma_sync_single_for_cpu(hi->host->device.parent, cmd->sge_dma,
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sizeof(cmd->scatter_gather_element),
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DMA_BIDIRECTIONAL);
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sbp2util_mark_command_completed(lu, cmd);
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@ -2049,11 +2055,12 @@ static int sbp2scsi_abort(struct scsi_cmnd *SCpnt)
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spin_lock_irqsave(&lu->cmd_orb_lock, flags);
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cmd = sbp2util_find_command_for_SCpnt(lu, SCpnt);
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if (cmd) {
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dma_sync_single_for_cpu(&hi->host->device,
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dma_sync_single_for_cpu(hi->host->device.parent,
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cmd->command_orb_dma,
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sizeof(struct sbp2_command_orb),
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DMA_TO_DEVICE);
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dma_sync_single_for_cpu(&hi->host->device, cmd->sge_dma,
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dma_sync_single_for_cpu(hi->host->device.parent,
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cmd->sge_dma,
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sizeof(cmd->scatter_gather_element),
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DMA_BIDIRECTIONAL);
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sbp2util_mark_command_completed(lu, cmd);
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