From mboxrd@z Thu Jan 1 00:00:00 1970 From: akpm@linux-foundation.org Subject: [folded] hpsa-factor-out-some-pci_unmap-code.patch removed from -mm tree Date: Mon, 16 Nov 2009 13:28:21 -0800 Message-ID: <200911162128.nAGLSLMB000685@imap1.linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Return-path: Received: from smtp1.linux-foundation.org ([140.211.169.13]:33227 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753994AbZKPV22 (ORCPT ); Mon, 16 Nov 2009 16:28:28 -0500 Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: scameron@beardog.cce.hp.com, James.Bottomley@HansenPartnership.com, jens.axboe@oracle.com, mikem@beardog.cce.hp.com, mm-commits@vger.kernel.org The patch titled hpsa: Factor out some pci_unmap code has been removed from the -mm tree. Its filename was hpsa-factor-out-some-pci_unmap-code.patch This patch was dropped because it was folded into scsi-add-hpsa-driver-for-hp-smart-array-controllers.patch The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: hpsa: Factor out some pci_unmap code From: "Stephen M. Cameron" hpsa: Factor out some pci_unmap code. There are a few places where the same, or nearly the same code is used to pci_unmap data buffers of driver initiated commands. Factor these out into a separate function. Signed-off-by: Stephen M. Cameron Cc: James Bottomley Cc: Jens Axboe Cc: Mike Miller Signed-off-by: Andrew Morton --- drivers/scsi/hpsa.c | 45 +++++++++++++----------------------------- 1 file changed, 14 insertions(+), 31 deletions(-) diff -puN drivers/scsi/hpsa.c~hpsa-factor-out-some-pci_unmap-code drivers/scsi/hpsa.c --- a/drivers/scsi/hpsa.c~hpsa-factor-out-some-pci_unmap-code +++ a/drivers/scsi/hpsa.c @@ -928,17 +928,18 @@ static int hpsa_scsi_detect(struct ctlr_ return -1; } -static void hpsa_unmap_one(struct pci_dev *pdev, - struct CommandList *cp, - size_t buflen, - int data_direction) +static void hpsa_pci_unmap(struct pci_dev *pdev, + struct CommandList *c, int sg_used, int data_direction) { + int i; union u64bit addr64; - addr64.val32.lower = cp->SG[0].Addr.lower; - addr64.val32.upper = cp->SG[0].Addr.upper; - pci_unmap_single(pdev, (dma_addr_t) addr64.val, - buflen, data_direction); + for (i = 0; i < sg_used; i++) { + addr64.val32.lower = c->SG[i].Addr.lower; + addr64.val32.upper = c->SG[i].Addr.upper; + pci_unmap_single(pdev, (dma_addr_t) addr64.val, c->SG[i].Len, + data_direction); + } } static void hpsa_map_one(struct pci_dev *pdev, @@ -1055,7 +1056,7 @@ static int hpsa_scsi_do_inquiry(struct c TYPE_CMD); if (rc == 0) { hpsa_scsi_do_simple_cmd_core(h, c); - hpsa_unmap_one(h->pdev, c, bufsize, PCI_DMA_FROMDEVICE); + hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_FROMDEVICE); ei = c->err_info; if (ei->CommandStatus != 0 && @@ -1162,7 +1163,7 @@ static int hpsa_scsi_do_report_luns(stru if (extended_response) c->Request.CDB[1] = extended_response; hpsa_scsi_do_simple_cmd_core(h, c); - hpsa_unmap_one(h->pdev, c, bufsize, PCI_DMA_FROMDEVICE); + hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_FROMDEVICE); ei = c->err_info; if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { @@ -2144,12 +2145,7 @@ static int hpsa_passthru_ioctl(struct ct c->SG[0].Ext = 0; /* we are not chaining*/ } hpsa_scsi_do_simple_cmd_core(h, c); - - /* unlock the buffers from DMA */ - temp64.val32.lower = c->SG[0].Addr.lower; - temp64.val32.upper = c->SG[0].Addr.upper; - pci_unmap_single(h->pdev, (dma_addr_t) temp64.val, iocommand.buf_size, - PCI_DMA_BIDIRECTIONAL); + hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL); /* Copy the error information out */ memcpy(&iocommand.error_info, c->err_info, @@ -2277,14 +2273,7 @@ static int hpsa_big_passthru_ioctl(struc } } hpsa_scsi_do_simple_cmd_core(h, c); - /* unlock the buffers from DMA */ - for (i = 0; i < sg_used; i++) { - temp64.val32.lower = c->SG[i].Addr.lower; - temp64.val32.upper = c->SG[i].Addr.upper; - pci_unmap_single(h->pdev, - (dma_addr_t) temp64.val, buff_size[i], - PCI_DMA_BIDIRECTIONAL); - } + hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL); /* Copy the error information out */ memcpy(&ioc->error_info, c->err_info, sizeof(ioc->error_info)); if (copy_to_user(argp, ioc, sizeof(*ioc))) { @@ -2501,7 +2490,6 @@ static int sendcmd_core(struct ctlr_info int i; unsigned long complete; int status = IO_ERROR; - union u64bit buff_dma_handle; resend_cmd1: /* @@ -2596,12 +2584,7 @@ resend_cmd1: } while (1); cleanup1: - - /* unlock the data buffer from DMA */ - buff_dma_handle.val32.lower = c->SG[0].Addr.lower; - buff_dma_handle.val32.upper = c->SG[0].Addr.upper; - pci_unmap_single(h->pdev, (dma_addr_t) buff_dma_handle.val, - c->SG[0].Len, PCI_DMA_BIDIRECTIONAL); + hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL); return status; } _ Patches currently in -mm which might be from scameron@beardog.cce.hp.com are linux-next.patch scsi-add-hpsa-driver-for-hp-smart-array-controllers.patch hpsa-factor-out-some-pci_unmap-code.patch add-thread-to-allow-controllers-to-register-for-rescan-for-new-devices.patch hpsa-allow-device-rescan-to-be-triggered-via-sysfs.patch hpsa-make-hpsa_sdev_attrs-static.patch hpsa-decode-unit-attention-condition-and-retry-commands.patch hpsa-retry-driver-initiated-commands-on-unit-attention.patch hpsa-flush-cache-with-interrupts-still-enabled.patch hpsa-remove-sendcmd-in-no-case-are-we-required-to-poll-for-completions.patch hpsa-make-fill_cmd-return-void.patch hpsa-fix-typo-that-causes-scsi-status-to-be-lost.patch hpsa-make-device-attrs-static.patch