- if (!scp->use_sg) { /* scatter-gather list not used */
-
- page = virt_to_page(scp->request_buffer);
-
- offset = ((unsigned long)scp->request_buffer & ~PAGE_MASK);
-
- ccb->buf_dma_h = pci_map_page(adapter->pdev, page, offset,
- scp->request_bufflen,
- scb->dma_direction);
- scb->dma_type = MRAID_DMA_WBUF;
-
- /*
- * We need to handle special 64-bit commands that need a
- * minimum of 1 SG
- */
- sgcnt = 1;
- ccb->sgl64[0].address = ccb->buf_dma_h;
- ccb->sgl64[0].length = scp->request_bufflen;
-
- return sgcnt;
- }
-
- sgl = (struct scatterlist *)scp->request_buffer;
-
- // The number of sg elements returned must not exceed our limit
- sgcnt = pci_map_sg(adapter->pdev, sgl, scp->use_sg,
- scb->dma_direction);
-
- if (sgcnt > adapter->sglen) {
- con_log(CL_ANN, (KERN_CRIT
- "megaraid critical: too many sg elements:%d\n",
- sgcnt));
- BUG();
- }
-