Merge git://git.infradead.org/mtd-2.6
[sfrench/cifs-2.6.git] / drivers / scsi / ipr.c
index fa6ff295e5683b544ceea30250de287fbdb362d6..439b97a6a269f6b8377b865d4759c300a0429f8a 100644 (file)
@@ -539,32 +539,6 @@ struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
        return ipr_cmd;
 }
 
-/**
- * ipr_unmap_sglist - Unmap scatterlist if mapped
- * @ioa_cfg:   ioa config struct
- * @ipr_cmd:   ipr command struct
- *
- * Return value:
- *     nothing
- **/
-static void ipr_unmap_sglist(struct ipr_ioa_cfg *ioa_cfg,
-                            struct ipr_cmnd *ipr_cmd)
-{
-       struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
-
-       if (ipr_cmd->dma_use_sg) {
-               if (scsi_cmd->use_sg > 0) {
-                       pci_unmap_sg(ioa_cfg->pdev, scsi_cmd->request_buffer,
-                                    scsi_cmd->use_sg,
-                                    scsi_cmd->sc_data_direction);
-               } else {
-                       pci_unmap_single(ioa_cfg->pdev, ipr_cmd->dma_handle,
-                                        scsi_cmd->request_bufflen,
-                                        scsi_cmd->sc_data_direction);
-               }
-       }
-}
-
 /**
  * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
  * @ioa_cfg:   ioa config struct
@@ -677,7 +651,7 @@ static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
 
        scsi_cmd->result |= (DID_ERROR << 16);
 
-       ipr_unmap_sglist(ioa_cfg, ipr_cmd);
+       scsi_dma_unmap(ipr_cmd->scsi_cmd);
        scsi_cmd->scsi_done(scsi_cmd);
        list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
 }
@@ -2465,6 +2439,7 @@ restart:
 /**
  * ipr_read_trace - Dump the adapter trace
  * @kobj:              kobject struct
+ * @bin_attr:          bin_attribute struct
  * @buf:               buffer
  * @off:               offset
  * @count:             buffer size
@@ -2472,8 +2447,9 @@ restart:
  * Return value:
  *     number of bytes printed to buffer
  **/
-static ssize_t ipr_read_trace(struct kobject *kobj, char *buf,
-                             loff_t off, size_t count)
+static ssize_t ipr_read_trace(struct kobject *kobj,
+                             struct bin_attribute *bin_attr,
+                             char *buf, loff_t off, size_t count)
 {
        struct class_device *cdev = container_of(kobj,struct class_device,kobj);
        struct Scsi_Host *shost = class_to_shost(cdev);
@@ -2896,6 +2872,7 @@ static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
        }
 
        scatterlist = sglist->scatterlist;
+       sg_init_table(scatterlist, num_elem);
 
        sglist->order = order;
        sglist->num_sg = num_elem;
@@ -2908,12 +2885,12 @@ static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
 
                        /* Free up what we already allocated */
                        for (j = i - 1; j >= 0; j--)
-                               __free_pages(scatterlist[j].page, order);
+                               __free_pages(sg_page(&scatterlist[j]), order);
                        kfree(sglist);
                        return NULL;
                }
 
-               scatterlist[i].page = page;
+               sg_set_page(&scatterlist[i], page);
        }
 
        return sglist;
@@ -2934,7 +2911,7 @@ static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
        int i;
 
        for (i = 0; i < sglist->num_sg; i++)
-               __free_pages(sglist->scatterlist[i].page, sglist->order);
+               __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
 
        kfree(sglist);
 }
@@ -2964,9 +2941,11 @@ static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
        scatterlist = sglist->scatterlist;
 
        for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
-               kaddr = kmap(scatterlist[i].page);
+               struct page *page = sg_page(&scatterlist[i]);
+
+               kaddr = kmap(page);
                memcpy(kaddr, buffer, bsize_elem);
-               kunmap(scatterlist[i].page);
+               kunmap(page);
 
                scatterlist[i].length = bsize_elem;
 
@@ -2977,9 +2956,11 @@ static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
        }
 
        if (len % bsize_elem) {
-               kaddr = kmap(scatterlist[i].page);
+               struct page *page = sg_page(&scatterlist[i]);
+
+               kaddr = kmap(page);
                memcpy(kaddr, buffer, len % bsize_elem);
-               kunmap(scatterlist[i].page);
+               kunmap(page);
 
                scatterlist[i].length = len % bsize_elem;
        }
@@ -3166,6 +3147,7 @@ static struct class_device_attribute *ipr_ioa_attrs[] = {
 /**
  * ipr_read_dump - Dump the adapter
  * @kobj:              kobject struct
+ * @bin_attr:          bin_attribute struct
  * @buf:               buffer
  * @off:               offset
  * @count:             buffer size
@@ -3173,8 +3155,9 @@ static struct class_device_attribute *ipr_ioa_attrs[] = {
  * Return value:
  *     number of bytes printed to buffer
  **/
-static ssize_t ipr_read_dump(struct kobject *kobj, char *buf,
-                             loff_t off, size_t count)
+static ssize_t ipr_read_dump(struct kobject *kobj,
+                            struct bin_attribute *bin_attr,
+                            char *buf, loff_t off, size_t count)
 {
        struct class_device *cdev = container_of(kobj,struct class_device,kobj);
        struct Scsi_Host *shost = class_to_shost(cdev);
@@ -3327,6 +3310,7 @@ static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
 /**
  * ipr_write_dump - Setup dump state of adapter
  * @kobj:              kobject struct
+ * @bin_attr:          bin_attribute struct
  * @buf:               buffer
  * @off:               offset
  * @count:             buffer size
@@ -3334,8 +3318,9 @@ static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
  * Return value:
  *     number of bytes printed to buffer
  **/
-static ssize_t ipr_write_dump(struct kobject *kobj, char *buf,
-                             loff_t off, size_t count)
+static ssize_t ipr_write_dump(struct kobject *kobj,
+                             struct bin_attribute *bin_attr,
+                             char *buf, loff_t off, size_t count)
 {
        struct class_device *cdev = container_of(kobj,struct class_device,kobj);
        struct Scsi_Host *shost = class_to_shost(cdev);
@@ -3849,18 +3834,18 @@ static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
 
 /**
  * ipr_sata_reset - Reset the SATA port
- * @ap:                SATA port to reset
+ * @link:      SATA link to reset
  * @classes:   class of the attached device
  *
- * This function issues a SATA phy reset to the affected ATA port.
+ * This function issues a SATA phy reset to the affected ATA link.
  *
  * Return value:
  *     0 on success / non-zero on failure
  **/
-static int ipr_sata_reset(struct ata_port *ap, unsigned int *classes,
+static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
                                unsigned long deadline)
 {
-       struct ipr_sata_port *sata_port = ap->private_data;
+       struct ipr_sata_port *sata_port = link->ap->private_data;
        struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
        struct ipr_resource_entry *res;
        unsigned long lock_flags = 0;
@@ -4292,93 +4277,55 @@ static irqreturn_t ipr_isr(int irq, void *devp)
 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
                           struct ipr_cmnd *ipr_cmd)
 {
-       int i;
-       struct scatterlist *sglist;
+       int i, nseg;
+       struct scatterlist *sg;
        u32 length;
        u32 ioadl_flags = 0;
        struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
        struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
        struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
 
-       length = scsi_cmd->request_bufflen;
-
-       if (length == 0)
+       length = scsi_bufflen(scsi_cmd);
+       if (!length)
                return 0;
 
-       if (scsi_cmd->use_sg) {
-               ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev,
-                                                scsi_cmd->request_buffer,
-                                                scsi_cmd->use_sg,
-                                                scsi_cmd->sc_data_direction);
-
-               if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
-                       ioadl_flags = IPR_IOADL_FLAGS_WRITE;
-                       ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
-                       ioarcb->write_data_transfer_length = cpu_to_be32(length);
-                       ioarcb->write_ioadl_len =
-                               cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
-               } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
-                       ioadl_flags = IPR_IOADL_FLAGS_READ;
-                       ioarcb->read_data_transfer_length = cpu_to_be32(length);
-                       ioarcb->read_ioadl_len =
-                               cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
-               }
-
-               sglist = scsi_cmd->request_buffer;
+       nseg = scsi_dma_map(scsi_cmd);
+       if (nseg < 0) {
+               dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
+               return -1;
+       }
 
-               if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) {
-                       ioadl = ioarcb->add_data.u.ioadl;
-                       ioarcb->write_ioadl_addr =
-                               cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
-                                           offsetof(struct ipr_ioarcb, add_data));
-                       ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
-               }
+       ipr_cmd->dma_use_sg = nseg;
 
-               for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
-                       ioadl[i].flags_and_data_len =
-                               cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i]));
-                       ioadl[i].address =
-                               cpu_to_be32(sg_dma_address(&sglist[i]));
-               }
+       if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
+               ioadl_flags = IPR_IOADL_FLAGS_WRITE;
+               ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
+               ioarcb->write_data_transfer_length = cpu_to_be32(length);
+               ioarcb->write_ioadl_len =
+                       cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
+       } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
+               ioadl_flags = IPR_IOADL_FLAGS_READ;
+               ioarcb->read_data_transfer_length = cpu_to_be32(length);
+               ioarcb->read_ioadl_len =
+                       cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
+       }
 
-               if (likely(ipr_cmd->dma_use_sg)) {
-                       ioadl[i-1].flags_and_data_len |=
-                               cpu_to_be32(IPR_IOADL_FLAGS_LAST);
-                       return 0;
-               } else
-                       dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
-       } else {
-               if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
-                       ioadl_flags = IPR_IOADL_FLAGS_WRITE;
-                       ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
-                       ioarcb->write_data_transfer_length = cpu_to_be32(length);
-                       ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
-               } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
-                       ioadl_flags = IPR_IOADL_FLAGS_READ;
-                       ioarcb->read_data_transfer_length = cpu_to_be32(length);
-                       ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
-               }
+       if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) {
+               ioadl = ioarcb->add_data.u.ioadl;
+               ioarcb->write_ioadl_addr =
+                       cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
+                                   offsetof(struct ipr_ioarcb, add_data));
+               ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
+       }
 
-               ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev,
-                                                    scsi_cmd->request_buffer, length,
-                                                    scsi_cmd->sc_data_direction);
-
-               if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) {
-                       ioadl = ioarcb->add_data.u.ioadl;
-                       ioarcb->write_ioadl_addr =
-                               cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
-                                           offsetof(struct ipr_ioarcb, add_data));
-                       ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
-                       ipr_cmd->dma_use_sg = 1;
-                       ioadl[0].flags_and_data_len =
-                               cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST);
-                       ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle);
-                       return 0;
-               } else
-                       dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n");
+       scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
+               ioadl[i].flags_and_data_len =
+                       cpu_to_be32(ioadl_flags | sg_dma_len(sg));
+               ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
        }
 
-       return -1;
+       ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
+       return 0;
 }
 
 /**
@@ -4441,7 +4388,7 @@ static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
                        res->needs_sync_complete = 1;
                res->in_erp = 0;
        }
-       ipr_unmap_sglist(ioa_cfg, ipr_cmd);
+       scsi_dma_unmap(ipr_cmd->scsi_cmd);
        list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
        scsi_cmd->scsi_done(scsi_cmd);
 }
@@ -4819,7 +4766,7 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
                break;
        }
 
-       ipr_unmap_sglist(ioa_cfg, ipr_cmd);
+       scsi_dma_unmap(ipr_cmd->scsi_cmd);
        list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
        scsi_cmd->scsi_done(scsi_cmd);
 }
@@ -4840,10 +4787,10 @@ static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
        struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
 
-       scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len);
+       scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len));
 
        if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
-               ipr_unmap_sglist(ioa_cfg, ipr_cmd);
+               scsi_dma_unmap(ipr_cmd->scsi_cmd);
                list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
                scsi_cmd->scsi_done(scsi_cmd);
        } else
@@ -5039,22 +4986,22 @@ static void ipr_ata_phy_reset(struct ata_port *ap)
        rc = ipr_device_reset(ioa_cfg, res);
 
        if (rc) {
-               ap->ops->port_disable(ap);
+               ata_port_disable(ap);
                goto out_unlock;
        }
 
        switch(res->cfgte.proto) {
        case IPR_PROTO_SATA:
        case IPR_PROTO_SAS_STP:
-               ap->device[0].class = ATA_DEV_ATA;
+               ap->link.device[0].class = ATA_DEV_ATA;
                break;
        case IPR_PROTO_SATA_ATAPI:
        case IPR_PROTO_SAS_STP_ATAPI:
-               ap->device[0].class = ATA_DEV_ATAPI;
+               ap->link.device[0].class = ATA_DEV_ATAPI;
                break;
        default:
-               ap->device[0].class = ATA_DEV_UNKNOWN;
-               ap->ops->port_disable(ap);
+               ap->link.device[0].class = ATA_DEV_UNKNOWN;
+               ata_port_disable(ap);
                break;
        };
 
@@ -5192,6 +5139,7 @@ static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
        u32 ioadl_flags = 0;
        struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
        struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
+       struct ipr_ioadl_desc *last_ioadl = NULL;
        int len = qc->nbytes + qc->pad_len;
        struct scatterlist *sg;
 
@@ -5214,11 +5162,13 @@ static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
        ata_for_each_sg(sg, qc) {
                ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
                ioadl->address = cpu_to_be32(sg_dma_address(sg));
-               if (ata_sg_is_last(sg, qc))
-                       ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
-               else
-                       ioadl++;
+
+               last_ioadl = ioadl;
+               ioadl++;
        }
+
+       if (likely(last_ioadl))
+               last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
 }
 
 /**
@@ -5320,7 +5270,6 @@ static u8 ipr_ata_check_altstatus(struct ata_port *ap)
 }
 
 static struct ata_port_operations ipr_sata_ops = {
-       .port_disable = ata_port_disable,
        .check_status = ipr_ata_check_status,
        .check_altstatus = ipr_ata_check_altstatus,
        .dev_select = ata_noop_dev_select,
@@ -5367,18 +5316,12 @@ static const u16 ipr_blocked_processors[] = {
  **/
 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
 {
-       u8 rev_id;
        int i;
 
-       if (ioa_cfg->type == 0x5702) {
-               if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID,
-                                        &rev_id) == PCIBIOS_SUCCESSFUL) {
-                       if (rev_id < 4) {
-                               for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
-                                       if (__is_processor(ipr_blocked_processors[i]))
-                                               return 1;
-                               }
-                       }
+       if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
+               for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
+                       if (__is_processor(ipr_blocked_processors[i]))
+                               return 1;
                }
        }
        return 0;
@@ -7535,13 +7478,7 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
        else
                ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
 
-       rc = pci_read_config_byte(pdev, PCI_REVISION_ID, &ioa_cfg->revid);
-
-       if (rc != PCIBIOS_SUCCESSFUL) {
-               dev_err(&pdev->dev, "Failed to read PCI revision ID\n");
-               rc = -EIO;
-               goto out_scsi_host_put;
-       }
+       ioa_cfg->revid = pdev->revision;
 
        ipr_regs_pci = pci_resource_start(pdev, 0);