hisi_sas: Allocate memories and create pools
Allocate DMA and non-DMA memories for the controller. Also create DMA
pools.
These include:
- Delivery queues
- Completion queues
- Command status buffer
- Command table
- ITCT (For device context)
- Host slot info
- IO status
- Breakpoint
- host slot indexing
- SG data
- FIS
- interrupts names
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 4fc5a6c..97f5368 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -36,6 +36,97 @@
static struct sas_domain_function_template hisi_sas_transport_ops = {
};
+static int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost)
+{
+ int i, s;
+ struct platform_device *pdev = hisi_hba->pdev;
+ struct device *dev = &pdev->dev;
+
+ for (i = 0; i < hisi_hba->queue_count; i++) {
+ /* Delivery queue */
+ s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS;
+ hisi_hba->cmd_hdr[i] = dma_alloc_coherent(dev, s,
+ &hisi_hba->cmd_hdr_dma[i], GFP_KERNEL);
+ if (!hisi_hba->cmd_hdr[i])
+ goto err_out;
+ memset(hisi_hba->cmd_hdr[i], 0, s);
+
+ /* Completion queue */
+ s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS;
+ hisi_hba->complete_hdr[i] = dma_alloc_coherent(dev, s,
+ &hisi_hba->complete_hdr_dma[i], GFP_KERNEL);
+ if (!hisi_hba->complete_hdr[i])
+ goto err_out;
+ memset(hisi_hba->complete_hdr[i], 0, s);
+ }
+
+ s = HISI_SAS_STATUS_BUF_SZ;
+ hisi_hba->status_buffer_pool = dma_pool_create("status_buffer",
+ dev, s, 16, 0);
+ if (!hisi_hba->status_buffer_pool)
+ goto err_out;
+
+ s = HISI_SAS_COMMAND_TABLE_SZ;
+ hisi_hba->command_table_pool = dma_pool_create("command_table",
+ dev, s, 16, 0);
+ if (!hisi_hba->command_table_pool)
+ goto err_out;
+
+ s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct);
+ hisi_hba->itct = dma_alloc_coherent(dev, s, &hisi_hba->itct_dma,
+ GFP_KERNEL);
+ if (!hisi_hba->itct)
+ goto err_out;
+
+ memset(hisi_hba->itct, 0, s);
+
+ hisi_hba->slot_info = devm_kcalloc(dev, HISI_SAS_COMMAND_ENTRIES,
+ sizeof(struct hisi_sas_slot),
+ GFP_KERNEL);
+ if (!hisi_hba->slot_info)
+ goto err_out;
+
+ s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_iost);
+ hisi_hba->iost = dma_alloc_coherent(dev, s, &hisi_hba->iost_dma,
+ GFP_KERNEL);
+ if (!hisi_hba->iost)
+ goto err_out;
+
+ memset(hisi_hba->iost, 0, s);
+
+ s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint);
+ hisi_hba->breakpoint = dma_alloc_coherent(dev, s,
+ &hisi_hba->breakpoint_dma, GFP_KERNEL);
+ if (!hisi_hba->breakpoint)
+ goto err_out;
+
+ memset(hisi_hba->breakpoint, 0, s);
+
+ hisi_hba->sge_page_pool = dma_pool_create("status_sge", dev,
+ sizeof(struct hisi_sas_sge_page), 16, 0);
+ if (!hisi_hba->sge_page_pool)
+ goto err_out;
+
+ s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS;
+ hisi_hba->initial_fis = dma_alloc_coherent(dev, s,
+ &hisi_hba->initial_fis_dma, GFP_KERNEL);
+ if (!hisi_hba->initial_fis)
+ goto err_out;
+ memset(hisi_hba->initial_fis, 0, s);
+
+ s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint) * 2;
+ hisi_hba->sata_breakpoint = dma_alloc_coherent(dev, s,
+ &hisi_hba->sata_breakpoint_dma, GFP_KERNEL);
+ if (!hisi_hba->sata_breakpoint)
+ goto err_out;
+ memset(hisi_hba->sata_breakpoint, 0, s);
+
+ return 0;
+err_out:
+ return -ENOMEM;
+}
+
+
static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev,
const struct hisi_sas_hw *hw)
{
@@ -97,6 +188,9 @@
if (IS_ERR(hisi_hba->ctrl))
goto err_out;
+ if (hisi_sas_alloc(hisi_hba, shost))
+ goto err_out;
+
return shost;
err_out:
dev_err(dev, "shost alloc failed\n");