diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/message/fusion/mptbase.c | 287 | ||||
-rw-r--r-- | drivers/message/fusion/mptbase.h | 35 | ||||
-rw-r--r-- | drivers/message/fusion/mptctl.c | 37 | ||||
-rw-r--r-- | drivers/message/fusion/mptdebug.h | 3 | ||||
-rw-r--r-- | drivers/message/fusion/mptfc.c | 10 | ||||
-rw-r--r-- | drivers/message/fusion/mptsas.c | 18 | ||||
-rw-r--r-- | drivers/message/fusion/mptscsih.c | 102 | ||||
-rw-r--r-- | drivers/message/fusion/mptspi.c | 14 |
8 files changed, 318 insertions, 188 deletions
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 5d496a99e03..a66369218c9 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -998,7 +998,7 @@ mpt_free_msg_frame(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf) /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /** - * mpt_add_sge - Place a simple SGE at address pAddr. + * mpt_add_sge - Place a simple 32 bit SGE at address pAddr. * @pAddr: virtual address for SGE * @flagslength: SGE flags and data transfer length * @dma_addr: Physical address @@ -1006,23 +1006,117 @@ mpt_free_msg_frame(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf) * This routine places a MPT request frame back on the MPT adapter's * FreeQ. */ -void -mpt_add_sge(char *pAddr, u32 flagslength, dma_addr_t dma_addr) +static void +mpt_add_sge(void *pAddr, u32 flagslength, dma_addr_t dma_addr) { - if (sizeof(dma_addr_t) == sizeof(u64)) { - SGESimple64_t *pSge = (SGESimple64_t *) pAddr; + SGESimple32_t *pSge = (SGESimple32_t *) pAddr; + pSge->FlagsLength = cpu_to_le32(flagslength); + pSge->Address = cpu_to_le32(dma_addr); +} + +/** + * mpt_add_sge_64bit - Place a simple 64 bit SGE at address pAddr. + * @pAddr: virtual address for SGE + * @flagslength: SGE flags and data transfer length + * @dma_addr: Physical address + * + * This routine places a MPT request frame back on the MPT adapter's + * FreeQ. + **/ +static void +mpt_add_sge_64bit(void *pAddr, u32 flagslength, dma_addr_t dma_addr) +{ + SGESimple64_t *pSge = (SGESimple64_t *) pAddr; + pSge->Address.Low = cpu_to_le32 + (lower_32_bits((unsigned long)(dma_addr))); + pSge->Address.High = cpu_to_le32 + (upper_32_bits((unsigned long)dma_addr)); + pSge->FlagsLength = cpu_to_le32 + ((flagslength | MPT_SGE_FLAGS_64_BIT_ADDRESSING)); +} + +/** + * mpt_add_sge_64bit_1078 - Place a simple 64 bit SGE at address pAddr + * (1078 workaround). + * @pAddr: virtual address for SGE + * @flagslength: SGE flags and data transfer length + * @dma_addr: Physical address + * + * This routine places a MPT request frame back on the MPT adapter's + * FreeQ. + **/ +static void +mpt_add_sge_64bit_1078(void *pAddr, u32 flagslength, dma_addr_t dma_addr) +{ + SGESimple64_t *pSge = (SGESimple64_t *) pAddr; + u32 tmp; + + pSge->Address.Low = cpu_to_le32 + (lower_32_bits((unsigned long)(dma_addr))); + tmp = (u32)(upper_32_bits((unsigned long)dma_addr)); + + /* + * 1078 errata workaround for the 36GB limitation + */ + if ((((u64)dma_addr + MPI_SGE_LENGTH(flagslength)) >> 32) == 9) { + flagslength |= + MPI_SGE_SET_FLAGS(MPI_SGE_FLAGS_LOCAL_ADDRESS); + tmp |= (1<<31); + if (mpt_debug_level & MPT_DEBUG_36GB_MEM) + printk(KERN_DEBUG "1078 P0M2 addressing for " + "addr = 0x%llx len = %d\n", + (unsigned long long)dma_addr, + MPI_SGE_LENGTH(flagslength)); + } + + pSge->Address.High = cpu_to_le32(tmp); + pSge->FlagsLength = cpu_to_le32( + (flagslength | MPT_SGE_FLAGS_64_BIT_ADDRESSING)); +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mpt_add_chain - Place a 32 bit chain SGE at address pAddr. + * @pAddr: virtual address for SGE + * @next: nextChainOffset value (u32's) + * @length: length of next SGL segment + * @dma_addr: Physical address + * + */ +static void +mpt_add_chain(void *pAddr, u8 next, u16 length, dma_addr_t dma_addr) +{ + SGEChain32_t *pChain = (SGEChain32_t *) pAddr; + pChain->Length = cpu_to_le16(length); + pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT; + pChain->NextChainOffset = next; + pChain->Address = cpu_to_le32(dma_addr); +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mpt_add_chain_64bit - Place a 64 bit chain SGE at address pAddr. + * @pAddr: virtual address for SGE + * @next: nextChainOffset value (u32's) + * @length: length of next SGL segment + * @dma_addr: Physical address + * + */ +static void +mpt_add_chain_64bit(void *pAddr, u8 next, u16 length, dma_addr_t dma_addr) +{ + SGEChain64_t *pChain = (SGEChain64_t *) pAddr; u32 tmp = dma_addr & 0xFFFFFFFF; - pSge->FlagsLength = cpu_to_le32(flagslength); - pSge->Address.Low = cpu_to_le32(tmp); - tmp = (u32) ((u64)dma_addr >> 32); - pSge->Address.High = cpu_to_le32(tmp); + pChain->Length = cpu_to_le16(length); + pChain->Flags = (MPI_SGE_FLAGS_CHAIN_ELEMENT | + MPI_SGE_FLAGS_64_BIT_ADDRESSING); - } else { - SGESimple32_t *pSge = (SGESimple32_t *) pAddr; - pSge->FlagsLength = cpu_to_le32(flagslength); - pSge->Address = cpu_to_le32(dma_addr); - } + pChain->NextChainOffset = next; + + pChain->Address.Low = cpu_to_le32(tmp); + tmp = (u32)(upper_32_bits((unsigned long)dma_addr)); + pChain->Address.High = cpu_to_le32(tmp); } /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ @@ -1225,7 +1319,7 @@ mpt_host_page_alloc(MPT_ADAPTER *ioc, pIOCInit_t ioc_init) } flags_length = flags_length << MPI_SGE_FLAGS_SHIFT; flags_length |= ioc->HostPageBuffer_sz; - mpt_add_sge(psge, flags_length, ioc->HostPageBuffer_dma); + ioc->add_sge(psge, flags_length, ioc->HostPageBuffer_dma); ioc->facts.HostPageBufferSGE = ioc_init->HostPageBufferSGE; return 0; @@ -1534,21 +1628,42 @@ mpt_mapresources(MPT_ADAPTER *ioc) pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision); - if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) - && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) { - dinitprintk(ioc, printk(MYIOC_s_INFO_FMT - ": 64 BIT PCI BUS DMA ADDRESSING SUPPORTED\n", - ioc->name)); - } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) - && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) { - dinitprintk(ioc, printk(MYIOC_s_INFO_FMT - ": 32 BIT PCI BUS DMA ADDRESSING SUPPORTED\n", - ioc->name)); + if (sizeof(dma_addr_t) > 4) { + const uint64_t required_mask = dma_get_required_mask + (&pdev->dev); + if (required_mask > DMA_BIT_MASK(32) + && !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) + && !pci_set_consistent_dma_mask(pdev, + DMA_BIT_MASK(64))) { + ioc->dma_mask = DMA_BIT_MASK(64); + dinitprintk(ioc, printk(MYIOC_s_INFO_FMT + ": 64 BIT PCI BUS DMA ADDRESSING SUPPORTED\n", + ioc->name)); + } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) + && !pci_set_consistent_dma_mask(pdev, + DMA_BIT_MASK(32))) { + ioc->dma_mask = DMA_BIT_MASK(32); + dinitprintk(ioc, printk(MYIOC_s_INFO_FMT + ": 32 BIT PCI BUS DMA ADDRESSING SUPPORTED\n", + ioc->name)); + } else { + printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n", + ioc->name, pci_name(pdev)); + return r; + } } else { - printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n", - ioc->name, pci_name(pdev)); - pci_release_selected_regions(pdev, ioc->bars); - return r; + if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) + && !pci_set_consistent_dma_mask(pdev, + DMA_BIT_MASK(32))) { + ioc->dma_mask = DMA_BIT_MASK(32); + dinitprintk(ioc, printk(MYIOC_s_INFO_FMT + ": 32 BIT PCI BUS DMA ADDRESSING SUPPORTED\n", + ioc->name)); + } else { + printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n", + ioc->name, pci_name(pdev)); + return r; + } } mem_phys = msize = 0; @@ -1650,6 +1765,23 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id) return r; } + /* + * Setting up proper handlers for scatter gather handling + */ + if (ioc->dma_mask == DMA_BIT_MASK(64)) { + if (pdev->device == MPI_MANUFACTPAGE_DEVID_SAS1078) + ioc->add_sge = &mpt_add_sge_64bit_1078; + else + ioc->add_sge = &mpt_add_sge_64bit; + ioc->add_chain = &mpt_add_chain_64bit; + ioc->sg_addr_size = 8; + } else { + ioc->add_sge = &mpt_add_sge; + ioc->add_chain = &mpt_add_chain; + ioc->sg_addr_size = 4; + } + ioc->SGE_size = sizeof(u32) + ioc->sg_addr_size; + ioc->alloc_total = sizeof(MPT_ADAPTER); ioc->req_sz = MPT_DEFAULT_FRAME_SIZE; /* avoid div by zero! */ ioc->reply_sz = MPT_REPLY_FRAME_SIZE; @@ -1994,6 +2126,21 @@ mpt_resume(struct pci_dev *pdev) if (err) return err; + if (ioc->dma_mask == DMA_BIT_MASK(64)) { + if (pdev->device == MPI_MANUFACTPAGE_DEVID_SAS1078) + ioc->add_sge = &mpt_add_sge_64bit_1078; + else + ioc->add_sge = &mpt_add_sge_64bit; + ioc->add_chain = &mpt_add_chain_64bit; + ioc->sg_addr_size = 8; + } else { + + ioc->add_sge = &mpt_add_sge; + ioc->add_chain = &mpt_add_chain; + ioc->sg_addr_size = 4; + } + ioc->SGE_size = sizeof(u32) + ioc->sg_addr_size; + printk(MYIOC_s_INFO_FMT "pci-resume: ioc-state=0x%x,doorbell=0x%x\n", ioc->name, (mpt_GetIocState(ioc, 1) >> MPI_IOC_STATE_SHIFT), CHIPREG_READ32(&ioc->chip->Doorbell)); @@ -3325,11 +3472,10 @@ mpt_do_upload(MPT_ADAPTER *ioc, int sleepFlag) FWUpload_t *prequest; FWUploadReply_t *preply; FWUploadTCSGE_t *ptcsge; - int sgeoffset; u32 flagsLength; int ii, sz, reply_sz; int cmdStatus; - + int request_size; /* If the image size is 0, we are done. */ if ((sz = ioc->facts.FWImageSize) == 0) @@ -3364,18 +3510,17 @@ mpt_do_upload(MPT_ADAPTER *ioc, int sleepFlag) ptcsge->ImageSize = cpu_to_le32(sz); ptcsge++; - sgeoffset = sizeof(FWUpload_t) - sizeof(SGE_MPI_UNION) + sizeof(FWUploadTCSGE_t); - flagsLength = MPT_SGE_FLAGS_SSIMPLE_READ | sz; - mpt_add_sge((char *)ptcsge, flagsLength, ioc->cached_fw_dma); - - sgeoffset += sizeof(u32) + sizeof(dma_addr_t); - dinitprintk(ioc, printk(MYIOC_s_INFO_FMT ": Sending FW Upload (req @ %p) sgeoffset=%d \n", - ioc->name, prequest, sgeoffset)); + ioc->add_sge((char *)ptcsge, flagsLength, ioc->cached_fw_dma); + request_size = offsetof(FWUpload_t, SGL) + sizeof(FWUploadTCSGE_t) + + ioc->SGE_size; + dinitprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Sending FW Upload " + " (req @ %p) fw_size=%d mf_request_size=%d\n", ioc->name, prequest, + ioc->facts.FWImageSize, request_size)); DBG_DUMP_FW_REQUEST_FRAME(ioc, (u32 *)prequest); - ii = mpt_handshake_req_reply_wait(ioc, sgeoffset, (u32*)prequest, - reply_sz, (u16*)preply, 65 /*seconds*/, sleepFlag); + ii = mpt_handshake_req_reply_wait(ioc, request_size, (u32 *)prequest, + reply_sz, (u16 *)preply, 65 /*seconds*/, sleepFlag); dinitprintk(ioc, printk(MYIOC_s_INFO_FMT ": FW Upload completed rc=%x \n", ioc->name, ii)); @@ -4090,18 +4235,18 @@ initChainBuffers(MPT_ADAPTER *ioc) * num_sge = num sge in request frame + last chain buffer * scale = num sge per chain buffer if no chain element */ - scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32)); - if (sizeof(dma_addr_t) == sizeof(u64)) - num_sge = scale + (ioc->req_sz - 60) / (sizeof(dma_addr_t) + sizeof(u32)); + scale = ioc->req_sz / ioc->SGE_size; + if (ioc->sg_addr_size == sizeof(u64)) + num_sge = scale + (ioc->req_sz - 60) / ioc->SGE_size; else - num_sge = 1+ scale + (ioc->req_sz - 64) / (sizeof(dma_addr_t) + sizeof(u32)); + num_sge = 1 + scale + (ioc->req_sz - 64) / ioc->SGE_size; - if (sizeof(dma_addr_t) == sizeof(u64)) { + if (ioc->sg_addr_size == sizeof(u64)) { numSGE = (scale - 1) * (ioc->facts.MaxChainDepth-1) + scale + - (ioc->req_sz - 60) / (sizeof(dma_addr_t) + sizeof(u32)); + (ioc->req_sz - 60) / ioc->SGE_size; } else { - numSGE = 1 + (scale - 1) * (ioc->facts.MaxChainDepth-1) + scale + - (ioc->req_sz - 64) / (sizeof(dma_addr_t) + sizeof(u32)); + numSGE = 1 + (scale - 1) * (ioc->facts.MaxChainDepth-1) + + scale + (ioc->req_sz - 64) / ioc->SGE_size; } dinitprintk(ioc, printk(MYIOC_s_DEBUG_FMT "num_sge=%d numSGE=%d\n", ioc->name, num_sge, numSGE)); @@ -4161,12 +4306,42 @@ PrimeIocFifos(MPT_ADAPTER *ioc) dma_addr_t alloc_dma; u8 *mem; int i, reply_sz, sz, total_size, num_chain; + u64 dma_mask; + + dma_mask = 0; /* Prime reply FIFO... */ if (ioc->reply_frames == NULL) { if ( (num_chain = initChainBuffers(ioc)) < 0) return -1; + /* + * 1078 errata workaround for the 36GB limitation + */ + if (ioc->pcidev->device == MPI_MANUFACTPAGE_DEVID_SAS1078 && + ioc->dma_mask > DMA_35BIT_MASK) { + if (!pci_set_dma_mask(ioc->pcidev, DMA_BIT_MASK(32)) + && !pci_set_consistent_dma_mask(ioc->pcidev, + DMA_BIT_MASK(32))) { + dma_mask = DMA_35BIT_MASK; + d36memprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "setting 35 bit addressing for " + "Request/Reply/Chain and Sense Buffers\n", + ioc->name)); + } else { + /*Reseting DMA mask to 64 bit*/ + pci_set_dma_mask(ioc->pcidev, + DMA_BIT_MASK(64)); + pci_set_consistent_dma_mask(ioc->pcidev, + DMA_BIT_MASK(64)); + + printk(MYIOC_s_ERR_FMT + "failed setting 35 bit addressing for " + "Request/Reply/Chain and Sense Buffers\n", + ioc->name); + return -1; + } + } total_size = reply_sz = (ioc->reply_sz * ioc->reply_depth); dinitprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ReplyBuffer sz=%d bytes, ReplyDepth=%d\n", @@ -4305,6 +4480,12 @@ PrimeIocFifos(MPT_ADAPTER *ioc) alloc_dma += ioc->reply_sz; } + if (dma_mask == DMA_35BIT_MASK && !pci_set_dma_mask(ioc->pcidev, + ioc->dma_mask) && !pci_set_consistent_dma_mask(ioc->pcidev, + ioc->dma_mask)) + d36memprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "restoring 64 bit addressing\n", ioc->name)); + return 0; out_fail: @@ -4324,6 +4505,13 @@ out_fail: ioc->sense_buf_pool, ioc->sense_buf_pool_dma); ioc->sense_buf_pool = NULL; } + + if (dma_mask == DMA_35BIT_MASK && !pci_set_dma_mask(ioc->pcidev, + DMA_BIT_MASK(64)) && !pci_set_consistent_dma_mask(ioc->pcidev, + DMA_BIT_MASK(64))) + d36memprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "restoring 64 bit addressing\n", ioc->name)); + return -1; } @@ -5926,7 +6114,7 @@ mpt_config(MPT_ADAPTER *ioc, CONFIGPARMS *pCfg) ioc->name, pReq->Header.PageType, pReq->Header.PageNumber, pReq->Action)); } - mpt_add_sge((char *)&pReq->PageBufferSGE, flagsLength, pCfg->physAddr); + ioc->add_sge((char *)&pReq->PageBufferSGE, flagsLength, pCfg->physAddr); /* Append pCfg pointer to end of mf */ @@ -7613,7 +7801,6 @@ EXPORT_SYMBOL(mpt_get_msg_frame); EXPORT_SYMBOL(mpt_put_msg_frame); EXPORT_SYMBOL(mpt_put_msg_frame_hi_pri); EXPORT_SYMBOL(mpt_free_msg_frame); -EXPORT_SYMBOL(mpt_add_sge); EXPORT_SYMBOL(mpt_send_handshake_request); EXPORT_SYMBOL(mpt_verify_adapter); EXPORT_SYMBOL(mpt_GetIocState); diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h index b3e981d2a50..4a606764e31 100644 --- a/drivers/message/fusion/mptbase.h +++ b/drivers/message/fusion/mptbase.h @@ -76,8 +76,8 @@ #define COPYRIGHT "Copyright (c) 1999-2008 " MODULEAUTHOR #endif -#define MPT_LINUX_VERSION_COMMON "3.04.07" -#define MPT_LINUX_PACKAGE_NAME "@(#)mptlinux-3.04.07" +#define MPT_LINUX_VERSION_COMMON "3.04.08" +#define MPT_LINUX_PACKAGE_NAME "@(#)mptlinux-3.04.08" #define WHAT_MAGIC_STRING "@" "(" "#" ")" #define show_mptmod_ver(s,ver) \ @@ -134,6 +134,7 @@ #define MPT_COALESCING_TIMEOUT 0x10 + /* * SCSI transfer rate defines. */ @@ -564,6 +565,10 @@ struct mptfc_rport_info u8 flags; }; +typedef void (*MPT_ADD_SGE)(void *pAddr, u32 flagslength, dma_addr_t dma_addr); +typedef void (*MPT_ADD_CHAIN)(void *pAddr, u8 next, u16 length, + dma_addr_t dma_addr); + /* * Adapter Structure - pci_dev specific. Maximum: MPT_MAX_ADAPTERS */ @@ -600,6 +605,10 @@ typedef struct _MPT_ADAPTER int reply_depth; /* Num Allocated reply frames */ int reply_sz; /* Reply frame size */ int num_chain; /* Number of chain buffers */ + MPT_ADD_SGE add_sge; /* Pointer to add_sge + function */ + MPT_ADD_CHAIN add_chain; /* Pointer to add_chain + function */ /* Pool of buffers for chaining. ReqToChain * and ChainToChain track index of chain buffers. * ChainBuffer (DMA) virt/phys addresses. @@ -711,12 +720,15 @@ typedef struct _MPT_ADAPTER struct workqueue_struct *fc_rescan_work_q; struct scsi_cmnd **ScsiLookup; spinlock_t scsi_lookup_lock; - + u64 dma_mask; char reset_work_q_name[20]; struct workqueue_struct *reset_work_q; struct delayed_work fault_reset_work; spinlock_t fault_reset_work_lock; + u8 sg_addr_size; + u8 SGE_size; + } MPT_ADAPTER; /* @@ -753,13 +765,14 @@ typedef struct _mpt_sge { dma_addr_t Address; } MptSge_t; -#define mpt_addr_size() \ - ((sizeof(dma_addr_t) == sizeof(u64)) ? MPI_SGE_FLAGS_64_BIT_ADDRESSING : \ - MPI_SGE_FLAGS_32_BIT_ADDRESSING) -#define mpt_msg_flags() \ - ((sizeof(dma_addr_t) == sizeof(u64)) ? MPI_SCSIIO_MSGFLGS_SENSE_WIDTH_64 : \ - MPI_SCSIIO_MSGFLGS_SENSE_WIDTH_32) +#define mpt_msg_flags(ioc) \ + (ioc->sg_addr_size == sizeof(u64)) ? \ + MPI_SCSIIO_MSGFLGS_SENSE_WIDTH_64 : \ + MPI_SCSIIO_MSGFLGS_SENSE_WIDTH_32 + +#define MPT_SGE_FLAGS_64_BIT_ADDRESSING \ + (MPI_SGE_FLAGS_64_BIT_ADDRESSING << MPI_SGE_FLAGS_SHIFT) /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /* @@ -909,7 +922,6 @@ extern MPT_FRAME_HDR *mpt_get_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc); extern void mpt_free_msg_frame(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf); extern void mpt_put_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf); extern void mpt_put_msg_frame_hi_pri(u8 cb_idx, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf); -extern void mpt_add_sge(char *pAddr, u32 flagslength, dma_addr_t dma_addr); extern int mpt_send_handshake_request(u8 cb_idx, MPT_ADAPTER *ioc, int reqBytes, u32 *req, int sleepFlag); extern int mpt_verify_adapter(int iocid, MPT_ADAPTER **iocpp); @@ -959,7 +971,6 @@ extern int mpt_fwfault_debug; #define MPT_SGE_FLAGS_END_OF_BUFFER (0x40000000) #define MPT_SGE_FLAGS_LOCAL_ADDRESS (0x08000000) #define MPT_SGE_FLAGS_DIRECTION (0x04000000) -#define MPT_SGE_FLAGS_ADDRESSING (mpt_addr_size() << MPI_SGE_FLAGS_SHIFT) #define MPT_SGE_FLAGS_END_OF_LIST (0x01000000) #define MPT_SGE_FLAGS_TRANSACTION_ELEMENT (0x00000000) @@ -972,14 +983,12 @@ extern int mpt_fwfault_debug; MPT_SGE_FLAGS_END_OF_BUFFER | \ MPT_SGE_FLAGS_END_OF_LIST | \ MPT_SGE_FLAGS_SIMPLE_ELEMENT | \ - MPT_SGE_FLAGS_ADDRESSING | \ MPT_TRANSFER_IOC_TO_HOST) #define MPT_SGE_FLAGS_SSIMPLE_WRITE \ (MPT_SGE_FLAGS_LAST_ELEMENT | \ MPT_SGE_FLAGS_END_OF_BUFFER | \ MPT_SGE_FLAGS_END_OF_LIST | \ MPT_SGE_FLAGS_SIMPLE_ELEMENT | \ - MPT_SGE_FLAGS_ADDRESSING | \ MPT_TRANSFER_HOST_TO_IOC) /*}-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c index c63817117c0..bece386f1d4 100644 --- a/drivers/message/fusion/mptctl.c +++ b/drivers/message/fusion/mptctl.c @@ -841,8 +841,9 @@ mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen) * 96 8 * 64 4 */ - maxfrags = (iocp->req_sz - sizeof(MPIHeader_t) - sizeof(FWDownloadTCSGE_t)) - / (sizeof(dma_addr_t) + sizeof(u32)); + maxfrags = (iocp->req_sz - sizeof(MPIHeader_t) - + sizeof(FWDownloadTCSGE_t)) + / iocp->SGE_size; if (numfrags > maxfrags) { ret = -EMLINK; goto fwdl_out; @@ -870,7 +871,7 @@ mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen) if (nib == 0 || nib == 3) { ; } else if (sgIn->Address) { - mpt_add_sge(sgOut, sgIn->FlagsLength, sgIn->Address); + iocp->add_sge(sgOut, sgIn->FlagsLength, sgIn->Address); n++; if (copy_from_user(bl->kptr, ufwbuf+fw_bytes_copied, bl->len)) { printk(MYIOC_s_ERR_FMT "%s@%d::_ioctl_fwdl - " @@ -882,7 +883,7 @@ mptctl_do_fw_download(int ioc, char __user *ufwbuf, size_t fwlen) } sgIn++; bl++; - sgOut += (sizeof(dma_addr_t) + sizeof(u32)); + sgOut += iocp->SGE_size; } DBG_DUMP_FW_DOWNLOAD(iocp, (u32 *)mf, numfrags); @@ -1003,7 +1004,7 @@ kbuf_alloc_2_sgl(int bytes, u32 sgdir, int sge_offset, int *frags, * */ sgl = sglbuf; - sg_spill = ((ioc->req_sz - sge_offset)/(sizeof(dma_addr_t) + sizeof(u32))) - 1; + sg_spill = ((ioc->req_sz - sge_offset)/ioc->SGE_size) - 1; while (bytes_allocd < bytes) { this_alloc = min(alloc_sz, bytes-bytes_allocd); buflist[buflist_ent].len = this_alloc; @@ -1024,8 +1025,9 @@ kbuf_alloc_2_sgl(int bytes, u32 sgdir, int sge_offset, int *frags, dma_addr_t dma_addr; bytes_allocd += this_alloc; - sgl->FlagsLength = (0x10000000|MPT_SGE_FLAGS_ADDRESSING|sgdir|this_alloc); - dma_addr = pci_map_single(ioc->pcidev, buflist[buflist_ent].kptr, this_alloc, dir); + sgl->FlagsLength = (0x10000000|sgdir|this_alloc); + dma_addr = pci_map_single(ioc->pcidev, + buflist[buflist_ent].kptr, this_alloc, dir); sgl->Address = dma_addr; fragcnt++; @@ -1799,9 +1801,9 @@ mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr) */ sz = karg.dataSgeOffset * 4; if (karg.dataInSize > 0) - sz += sizeof(dma_addr_t) + sizeof(u32); + sz += ioc->SGE_size; if (karg.dataOutSize > 0) - sz += sizeof(dma_addr_t) + sizeof(u32); + sz += ioc->SGE_size; if (sz > ioc->req_sz) { printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - " @@ -1893,7 +1895,7 @@ mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr) } pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH; - pScsiReq->MsgFlags |= mpt_msg_flags(); + pScsiReq->MsgFlags |= mpt_msg_flags(ioc); /* verify that app has not requested @@ -1979,7 +1981,7 @@ mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr) int dataSize; pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH; - pScsiReq->MsgFlags |= mpt_msg_flags(); + pScsiReq->MsgFlags |= mpt_msg_flags(ioc); /* verify that app has not requested @@ -2123,8 +2125,7 @@ mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr) if (karg.dataInSize > 0) { flagsLength = ( MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER | - MPI_SGE_FLAGS_DIRECTION | - mpt_addr_size() ) + MPI_SGE_FLAGS_DIRECTION) << MPI_SGE_FLAGS_SHIFT; } else { flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE; @@ -2141,8 +2142,8 @@ mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr) /* Set up this SGE. * Copy to MF and to sglbuf */ - mpt_add_sge(psge, flagsLength, dma_addr_out); - psge += (sizeof(u32) + sizeof(dma_addr_t)); + ioc->add_sge(psge, flagsLength, dma_addr_out); + psge += ioc->SGE_size; /* Copy user data to kernel space. */ @@ -2175,13 +2176,13 @@ mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr) /* Set up this SGE * Copy to MF and to sglbuf */ - mpt_add_sge(psge, flagsLength, dma_addr_in); + ioc->add_sge(psge, flagsLength, dma_addr_in); } } } else { /* Add a NULL SGE */ - mpt_add_sge(psge, flagsLength, (dma_addr_t) -1); + ioc->add_sge(psge, flagsLength, (dma_addr_t) -1); } ioc->ioctl->wait_done = 0; @@ -2498,7 +2499,7 @@ mptctl_hp_hostinfo(unsigned long arg, unsigned int data_size) pbuf = pci_alloc_consistent(ioc->pcidev, 4, &buf_dma); if (!pbuf) goto out; - mpt_add_sge((char *)&IstwiRWRequest->SGL, + ioc->add_sge((char *)&IstwiRWRequest->SGL, (MPT_SGE_FLAGS_SSIMPLE_READ|4), buf_dma); ioc->ioctl->wait_done = 0; diff --git a/drivers/message/fusion/mptdebug.h b/drivers/message/fusion/mptdebug.h index 510b9f49209..28e47887928 100644 --- a/drivers/message/fusion/mptdebug.h +++ b/drivers/message/fusion/mptdebug.h @@ -58,6 +58,7 @@ #define MPT_DEBUG_FC 0x00080000 #define MPT_DEBUG_SAS 0x00100000 #define MPT_DEBUG_SAS_WIDE 0x00200000 +#define MPT_DEBUG_36GB_MEM 0x00400000 /* * CONFIG_FUSION_LOGGING - enabled in Kconfig @@ -135,6 +136,8 @@ #define dsaswideprintk(IOC, CMD) \ MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SAS_WIDE) +#define d36memprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_36GB_MEM) /* diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index c3c24fdf9fb..da16b47a3f3 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -1251,17 +1251,15 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) * A slightly different algorithm is required for * 64bit SGEs. */ - scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32)); - if (sizeof(dma_addr_t) == sizeof(u64)) { + scale = ioc->req_sz/ioc->SGE_size; + if (ioc->sg_addr_size == sizeof(u64)) { numSGE = (scale - 1) * (ioc->facts.MaxChainDepth-1) + scale + - (ioc->req_sz - 60) / (sizeof(dma_addr_t) + - sizeof(u32)); + (ioc->req_sz - 60) / ioc->SGE_size; } else { numSGE = 1 + (scale - 1) * (ioc->facts.MaxChainDepth-1) + scale + - (ioc->req_sz - 64) / (sizeof(dma_addr_t) + - sizeof(u32)); + (ioc->req_sz - 64) / ioc->SGE_size; } if (numSGE < sh->sg_tablesize) { diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index a9019f081b9..b162f7a1c56 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -1319,15 +1319,15 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, /* request */ flagsLength = (MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER | - MPI_SGE_FLAGS_DIRECTION | - mpt_addr_size()) << MPI_SGE_FLAGS_SHIFT; + MPI_SGE_FLAGS_DIRECTION) + << MPI_SGE_FLAGS_SHIFT; flagsLength |= (req->data_len - 4); dma_addr_out = pci_map_single(ioc->pcidev, bio_data(req->bio), req->data_len, PCI_DMA_BIDIRECTIONAL); if (!dma_addr_out) goto put_mf; - mpt_add_sge(psge, flagsLength, dma_addr_out); + ioc->add_sge(psge, flagsLength, dma_addr_out); psge += (sizeof(u32) + sizeof(dma_addr_t)); /* response */ @@ -1337,7 +1337,7 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, rsp->data_len, PCI_DMA_BIDIRECTIONAL); if (!dma_addr_in) goto unmap; - mpt_add_sge(psge, flagsLength, dma_addr_in); + ioc->add_sge(psge, flagsLength, dma_addr_in); mpt_put_msg_frame(mptsasMgmtCtx, ioc, mf); @@ -3211,17 +3211,15 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id) * A slightly different algorithm is required for * 64bit SGEs. */ - scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32)); - if (sizeof(dma_addr_t) == sizeof(u64)) { + scale = ioc->req_sz/ioc->SGE_size; + if (ioc->sg_addr_size == sizeof(u64)) { numSGE = (scale - 1) * (ioc->facts.MaxChainDepth-1) + scale + - (ioc->req_sz - 60) / (sizeof(dma_addr_t) + - sizeof(u32)); + (ioc->req_sz - 60) / ioc->SGE_size; } else { numSGE = 1 + (scale - 1) * (ioc->facts.MaxChainDepth-1) + scale + - (ioc->req_sz - 64) / (sizeof(dma_addr_t) + - sizeof(u32)); + (ioc->req_sz - 64) / ioc->SGE_size; } if (numSGE < sh->sg_tablesize) { diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index e62c6bc4ad3..8c08c73f194 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -113,69 +113,6 @@ int mptscsih_resume(struct pci_dev *pdev); #define SNS_LEN(scp) SCSI_SENSE_BUFFERSIZE -/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ -/** - * mptscsih_add_sge - Place a simple SGE at address pAddr. - * @pAddr: virtual address for SGE - * @flagslength: SGE flags and data transfer length - * @dma_addr: Physical address - * - * This routine places a MPT request frame back on the MPT adapter's - * FreeQ. - */ -static inline void -mptscsih_add_sge(char *pAddr, u32 flagslength, dma_addr_t dma_addr) -{ - if (sizeof(dma_addr_t) == sizeof(u64)) { - SGESimple64_t *pSge = (SGESimple64_t *) pAddr; - u32 tmp = dma_addr & 0xFFFFFFFF; - - pSge->FlagsLength = cpu_to_le32(flagslength); - pSge->Address.Low = cpu_to_le32(tmp); - tmp = (u32) ((u64)dma_addr >> 32); - pSge->Address.High = cpu_to_le32(tmp); - - } else { - SGESimple32_t *pSge = (SGESimple32_t *) pAddr; - pSge->FlagsLength = cpu_to_le32(flagslength); - pSge->Address = cpu_to_le32(dma_addr); - } -} /* mptscsih_add_sge() */ - -/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ -/** - * mptscsih_add_chain - Place a chain SGE at address pAddr. - * @pAddr: virtual address for SGE - * @next: nextChainOffset value (u32's) - * @length: length of next SGL segment - * @dma_addr: Physical address - * - * This routine places a MPT request frame back on the MPT adapter's - * FreeQ. - */ -static inline void -mptscsih_add_chain(char *pAddr, u8 next, u16 length, dma_addr_t dma_addr) -{ - if (sizeof(dma_addr_t) == sizeof(u64)) { - SGEChain64_t *pChain = (SGEChain64_t *) pAddr; - u32 tmp = dma_addr & 0xFFFFFFFF; - - pChain->Length = cpu_to_le16(length); - pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT | mpt_addr_size(); - - pChain->NextChainOffset = next; - - pChain->Address.Low = cpu_to_le32(tmp); - tmp = (u32) ((u64)dma_addr >> 32); - pChain->Address.High = cpu_to_le32(tmp); - } else { - SGEChain32_t *pChain = (SGEChain32_t *) pAddr; - pChain->Length = cpu_to_le16(length); - pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT | mpt_addr_size(); - pChain->NextChainOffset = next; - pChain->Address = cpu_to_le32(dma_addr); - } -} /* mptscsih_add_chain() */ /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /* @@ -281,10 +218,10 @@ mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt, */ nextSGEset: - numSgeSlots = ((frm_sz - sgeOffset) / (sizeof(u32) + sizeof(dma_addr_t)) ); + numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size); numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots; - sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | MPT_SGE_FLAGS_ADDRESSING | sgdir; + sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir; /* Get first (num - 1) SG elements * Skip any SG entries with a length of 0 @@ -299,11 +236,11 @@ nextSGEset: } v2 = sg_dma_address(sg); - mptscsih_add_sge(psge, sgflags | thisxfer, v2); + ioc->add_sge(psge, sgflags | thisxfer, v2); sg = sg_next(sg); /* Get next SG element from the OS */ - psge += (sizeof(u32) + sizeof(dma_addr_t)); - sgeOffset += (sizeof(u32) + sizeof(dma_addr_t)); + psge += ioc->SGE_size; + sgeOffset += ioc->SGE_size; sg_done++; } @@ -320,12 +257,8 @@ nextSGEset: thisxfer = sg_dma_len(sg); v2 = sg_dma_address(sg); - mptscsih_add_sge(psge, sgflags | thisxfer, v2); - /* - sg = sg_next(sg); - psge += (sizeof(u32) + sizeof(dma_addr_t)); - */ - sgeOffset += (sizeof(u32) + sizeof(dma_addr_t)); + ioc->add_sge(psge, sgflags | thisxfer, v2); + sgeOffset += ioc->SGE_size; sg_done++; if (chainSge) { @@ -334,7 +267,8 @@ nextSGEset: * Update the chain element * Offset and Length fields. */ - mptscsih_add_chain((char *)chainSge, 0, sgeOffset, ioc->ChainBufferDMA + chain_dma_off); + ioc->add_chain((char *)chainSge, 0, sgeOffset, + ioc->ChainBufferDMA + chain_dma_off); } else { /* The current buffer is the original MF * and there is no Chain buffer. @@ -367,7 +301,7 @@ nextSGEset: * set properly). */ if (sg_done) { - u32 *ptmp = (u32 *) (psge - (sizeof(u32) + sizeof(dma_addr_t))); + u32 *ptmp = (u32 *) (psge - ioc->SGE_size); sgflags = le32_to_cpu(*ptmp); sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT; *ptmp = cpu_to_le32(sgflags); @@ -381,8 +315,9 @@ nextSGEset: * Old chain element is now complete. */ u8 nextChain = (u8) (sgeOffset >> 2); - sgeOffset += (sizeof(u32) + sizeof(dma_addr_t)); - mptscsih_add_chain((char *)chainSge, nextChain, sgeOffset, ioc->ChainBufferDMA + chain_dma_off); + sgeOffset += ioc->SGE_size; + ioc->add_chain((char *)chainSge, nextChain, sgeOffset, + ioc->ChainBufferDMA + chain_dma_off); } else { /* The original MF buffer requires a chain buffer - * set the offset. @@ -1422,7 +1357,7 @@ mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) pScsiReq->CDBLength = SCpnt->cmd_len; pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE; pScsiReq->Reserved = 0; - pScsiReq->MsgFlags = mpt_msg_flags(); + pScsiReq->MsgFlags = mpt_msg_flags(ioc); int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN); pScsiReq->Control = cpu_to_le32(scsictl); @@ -1448,7 +1383,8 @@ mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) */ if (datalen == 0) { /* Add a NULL SGE */ - mptscsih_add_sge((char *)&pScsiReq->SGL, MPT_SGE_FLAGS_SSIMPLE_READ | 0, + ioc->add_sge((char *)&pScsiReq->SGL, + MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1); } else { /* Add a 32 or 64 bit SGE */ @@ -3172,7 +3108,7 @@ mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io) pScsiReq->Reserved = 0; - pScsiReq->MsgFlags = mpt_msg_flags(); + pScsiReq->MsgFlags = mpt_msg_flags(ioc); /* MsgContext set in mpt_get_msg_fram call */ int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN); @@ -3199,11 +3135,11 @@ mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io) ioc->name, cmd, io->channel, io->id, io->lun)); if (dir == MPI_SCSIIO_CONTROL_READ) { - mpt_add_sge((char *) &pScsiReq->SGL, + ioc->add_sge((char *) &pScsiReq->SGL, MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma); } else { - mpt_add_sge((char *) &pScsiReq->SGL, + ioc->add_sge((char *) &pScsiReq->SGL, MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma); } diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c index 61620144e49..643a3c6443a 100644 --- a/drivers/message/fusion/mptspi.c +++ b/drivers/message/fusion/mptspi.c @@ -300,7 +300,7 @@ mptspi_writeIOCPage4(MPT_SCSI_HOST *hd, u8 channel , u8 id) flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE | (IOCPage4Ptr->Header.PageLength + ii) * 4; - mpt_add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma); + ioc->add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma); ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "writeIOCPage4: MaxSEP=%d ActiveSEP=%d id=%d bus=%d\n", @@ -643,7 +643,7 @@ mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, u8 channel, u8 id) pReq->Reserved2 = 0; pReq->ActionDataWord = 0; /* Reserved for this action */ - mpt_add_sge((char *)&pReq->ActionDataSGE, + ioc->add_sge((char *)&pReq->ActionDataSGE, MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1); ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "RAID Volume action=%x channel=%d id=%d\n", @@ -1423,17 +1423,15 @@ mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id) * A slightly different algorithm is required for * 64bit SGEs. */ - scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32)); - if (sizeof(dma_addr_t) == sizeof(u64)) { + scale = ioc->req_sz/ioc->SGE_size; + if (ioc->sg_addr_size == sizeof(u64)) { numSGE = (scale - 1) * (ioc->facts.MaxChainDepth-1) + scale + - (ioc->req_sz - 60) / (sizeof(dma_addr_t) + - sizeof(u32)); + (ioc->req_sz - 60) / ioc->SGE_size; } else { numSGE = 1 + (scale - 1) * (ioc->facts.MaxChainDepth-1) + scale + - (ioc->req_sz - 64) / (sizeof(dma_addr_t) + - sizeof(u32)); + (ioc->req_sz - 64) / ioc->SGE_size; } if (numSGE < sh->sg_tablesize) { |