GIT 1e56c106f0879872f6f2426b533ca5bfb712bb5b git+ssh://master.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git commit 1e56c106f0879872f6f2426b533ca5bfb712bb5b Author: Stefan Richter Date: Mon Aug 20 21:58:30 2007 +0200 firewire: fw-ohci: log posted write errors Signed-off-by: Stefan Richter commit 95ea4f3877086febb49111950c88c0346debf21d Author: Stefan Richter Date: Mon Aug 20 21:41:22 2007 +0200 firewire: fw-ohci: reorder includes Signed-off-by: Stefan Richter commit 48b797fa451d57b34270a0a8b839ad6fc1e42840 Author: Stefan Richter Date: Mon Aug 20 21:40:30 2007 +0200 firewire: fw-ohci: fix includes Add used includes, remove unused includes. Signed-off-by: Stefan Richter commit ff8a2c410630d25bbc53ae82f76001993a6af023 Author: Stefan Richter Date: Sat Aug 25 14:08:19 2007 +0200 firewire: fw-ohci: enforce read order for selfID generation It seems unlikely, but access to self_id_cpu[0] could at least in theory be deferred until after the loop over self_id_cpu[1..n] or even after the subsequent reg_read. Enforce the desired order by a read barrier. Also prevent the reg_read from being reordered relative to the for loop. This isn't necessary if the loop's conditional printk counts as an implicit barrier, but better make it explicit. (self_id_cpu[] is a coherent DMA buffer.) Signed-off-by: Stefan Richter commit 6c314f0edf49fece250382e2220e65960b5bbe21 Author: Stefan Richter Date: Sun Aug 12 12:51:18 2007 +0200 firewire: fw-sbp2: use an own workqueue (fix system responsiveness) Firewire-sbp2 did very uncooperative things in the kernel's shared workqueue: Sleeping until reception of management status from the target for up to 2 seconds, and performing SCSI inquiry and all of the setup of SCSI command set drivers via scsi_add_device. If there were transient or permanent error conditions, this caused long blockage of the kernel's events process, noticeable e.g. by blocked keyboard input. We now allocate a workqueue process exclusive to fw-sbp2. As a side effect, this also increases parallelism of fw-sbp2's login and reconnect work versus fw-core's device discovery and device update work which is performed in the shared workqueue. Signed-off-by: Stefan Richter Signed-off-by: Kristian Høgsberg commit 3f9d5a5152a1561c2fb80445227374c07dbce842 Author: Stefan Richter Date: Mon Aug 13 17:48:25 2007 +0200 firewire: fw-sbp2: expose module parameter for workarounds On rare occasions, the ability to set one of the workaround flags at runtime may save the day. People who experience I/O errors with firewire-sbp2 while the old sbp2 driver worked for them should try workarounds=1 and report to the devel mailinglist whether that improves things. Firewire-sbp2 defaults to the SCSI stack's maximum transfer size per command, while sbp2 limits them to 128 kBytes. Flag 1 accomplishes just that. Signed-off-by: Stefan Richter commit 07fcbcaf01d69a8ce20e6b9722a72f0943bca9d3 Author: Stefan Richter Date: Sat Aug 25 14:05:28 2007 +0200 firewire: fw-sbp2: add support for multiple logical units per target Fixes "New firewire stack only recognizing half of a chain of drives", https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=242254 Signed-off-by: Stefan Richter commit ec8d5dc0e1967445964298c07612215c9b1ddd6e Author: Stefan Richter Date: Sat Aug 25 10:40:42 2007 +0200 firewire: fw-sbp2: always enable IRQs before calling command ORB callback On IOMMU-less noncoherent architectures, orb->callback will memcpy the whole SCSI command buffer for READ-like SCSI commands. It is therefore friendlier to enable IRQs before the call, like before patch "Add ref-counting for sbp2 orbs". Signed-off-by: Stefan Richter commit ba57dc0ea32c276cd07c83993b99546be862c699 Author: Stefan Richter Date: Fri Aug 3 20:56:31 2007 +0200 firewire: fw-core: local variable shadows a global one Sparse warned about it although it was apparently harmless: drivers/firewire/fw-cdev.c:624:23: warning: symbol 'interrupt' shadows an earlier one include/asm/hw_irq.h:29:13: originally declared here Signed-off-by: Stefan Richter commit c5cf4a73611a91c91f0761596d19a37d772d2182 Author: Stefan Richter Date: Tue Jul 17 02:10:16 2007 +0200 firewire: optimize fw_core_add_address_handler Potentially avoids unnecessary loop runs. Guarantee quadlet-aligned starts of address regions. Document the return values. Signed-off-by: Stefan Richter commit 3743cc44c82342e744aa564f27c3e1fdd74ba3d0 Author: Kristian Høgsberg Date: Tue Jun 5 19:27:05 2007 -0400 firewire: Fix pci resume to not pass in a __be32 config rom. The ohci_enable() function shared between pci_probe and pci_resume takes a host endian config rom, but ohci->config_rom is __be32. This sets up the config rom in the wrong endian on little endian machine, specifically, BusOptions will be initialized to a 0 max receive size. This patch changes the way we reuse the config rom so that we avoid this problem. Signed-off-by: Kristian Hoegsberg Signed-off-by: Stefan Richter commit 6dc2aad465cc074bbe68e2e84b89a22428dc80c3 Author: Satyam Sharma Date: Wed Aug 15 20:05:38 2007 +0530 ieee1394: Fix kthread stopping in nodemgr_host_thread The nodemgr host thread can exit on its own even when kthread_should_stop is not true, on receiving a signal (might never happen in practice, as it ignores signals). But considering kthread_stop() must not be mixed with kthreads that can exit on their own, I think changing the code like this is clearer. This change means the thread can cut its sleep short when receive a signal but looking at the code around, that sounds okay (and again, it might never actually recieve a signal in practice). Signed-off-by: Satyam Sharma Signed-off-by: Stefan Richter commit 20b5cd8637514b6f5b4961a4360013ad519432eb Author: Stefan Richter Date: Sat Aug 11 11:52:08 2007 +0200 ieee1394: sbp2: fix unsafe iteration over list of devices sbp2_host_reset and sbp2_handle_status_write are not serialized against sbp2_alloc_device and sbp2_remove_device. Signed-off-by: Stefan Richter commit bca76d2f599125f169375e4a7300e8c22532f75a Author: Stefan Richter Date: Sun Jul 29 00:01:35 2007 +0200 ieee1394: pcilynx: superfluous local variables Signed-off-by: Stefan Richter commit b8ebfcfe1499644b7bd0144ddb4c3ef5362f617c Author: Stefan Richter Date: Sat Jul 28 23:45:03 2007 +0200 ieee1394: eth1394: fix lock imbalance bad_proto can be reached from points which did not take priv->lock. Signed-off-by: Stefan Richter commit 2f2bda15d415132132517e242442367b33ca0890 Author: Stefan Richter Date: Sat Jul 28 23:44:25 2007 +0200 ieee1394: eth1394: superfluous local variable Signed-off-by: Stefan Richter commit 5ac0464c61124914166e260404f1b9b98f5decb7 Author: Stefan Richter Date: Sat Aug 25 17:27:14 2007 +0200 roll back to origin commit 6ed8a4627fbbc94d8176d31470054a566b43c4d0 Author: Satyam Sharma Date: Wed Aug 15 20:05:38 2007 +0530 ieee1394: Fix kthread stopping in nodemgr_host_thread The nodemgr host thread can exit on its own even when kthread_should_stop is not true, on receiving a signal (might never happen in practice, as it ignores signals). But considering kthread_stop() must not be mixed with kthreads that can exit on their own, I think changing the code like this is clearer. This change means the thread can cut its sleep short when receive a signal but looking at the code around, that sounds okay (and again, it might never actually recieve a signal in practice). Signed-off-by: Satyam Sharma Signed-off-by: Stefan Richter commit 585e9c455ac48003d932c2ed8f0c06106b8ee123 Author: Stefan Richter Date: Wed Aug 15 21:44:51 2007 +0200 firewire: fw-sbp2: expose module parameter for workarounds, amendment Reduce nesting depth. Will be rolled into 549b7b036d091a114ccfbc5e90b39970df54b5a3 when pushed upstream. commit 98e0b80c3369bf3e415a503d0705edc5eadd4742 Author: Stefan Richter Date: Sun Aug 12 12:51:18 2007 +0200 firewire: fw-sbp2: use an own workqueue (fix system responsiveness) Firewire-sbp2 did very uncooperative things in the kernel's shared workqueue: Sleeping until reception of management status from the target for up to 2 seconds, and performing SCSI inquiry and all of the setup of SCSI command set drivers via scsi_add_device. If there were transient or permanent error conditions, this caused long blockage of the kernel's events process, noticeable e.g. by blocked keyboard input. We now allocate a workqueue process exclusive to fw-sbp2. As a side effect, this also increases parallelism of fw-sbp2's login and reconnect work versus fw-core's device discovery and device update work which is performed in the shared workqueue. Signed-off-by: Stefan Richter commit 549b7b036d091a114ccfbc5e90b39970df54b5a3 Author: Stefan Richter Date: Sun Aug 12 12:51:18 2007 +0200 firewire: fw-sbp2: expose module parameter for workarounds On rare occasions, the ability to set one of the workaround flags at runtime may save the day. People who experience I/O errors with firewire-sbp2 while the old sbp2 driver worked for them should try workarounds=1 and report to the devel mailinglist whether that improves things. Firewire-sbp2 defaults to the SCSI stack's maximum transfer size per command, while sbp2 limits them to 128 kBytes. Flag 1 accomplishes just that. Signed-off-by: Stefan Richter commit b911abe15da18ba4fe4a40239dadd2dcf9dcf705 Author: Stefan Richter Date: Sat Aug 11 11:52:08 2007 +0200 ieee1394: sbp2: fix unsafe iteration over list of devices sbp2_host_reset and sbp2_handle_status_write are not serialized against sbp2_alloc_device and sbp2_remove_device. Signed-off-by: Stefan Richter commit 3cdafc2494f6d07a974c6566d7a0c34fdb6027a8 Author: Stefan Richter Date: Sat Aug 11 11:51:16 2007 +0200 ieee1394: sbp2: fix sbp2_remove_device for error cases Bug found by Olaf Hering : sbp2util_remove_command_orb_pool requires a valid lu->hi pointer. Signed-off-by: Stefan Richter commit ce72b81c6049f0969832ff3f604f12ddd9d68cd4 Author: Stefan Richter Date: Sun Aug 12 13:20:25 2007 +0200 firewire: fw-sbp2: add support for multiple logical units per target, amendment Keep printing firmware_revision in dmesg, rather than firmware_revision & 0xffffff00. Will be rolled into the previous commit when pushed upstream. Signed-off-by: Stefan Richter commit 9166079a38d292f45ba59fe293c1ffaf11d0d56f Author: Stefan Richter Date: Sat Aug 4 15:54:58 2007 +0200 firewire: fw-sbp2: add support for multiple logical units per target Fixes "New firewire stack only recognizing half of a chain of drives", https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=242254 Signed-off-by: Stefan Richter commit 24f667e69f9493bfc09398d9149d998cf329afe9 Author: Stefan Richter Date: Tue Jul 17 02:10:16 2007 +0200 firewire: optimize fw_core_add_address_handler Potentially avoids unnecessary loop runs. Guarantee quadlet-aligned starts of address regions. Document the return values. Signed-off-by: Stefan Richter commit 12a2f56154610b63d06fe902db0783ceb44bcc4e Author: Kristian Høgsberg Date: Tue Jun 5 19:27:05 2007 -0400 firewire: Fix pci resume to not pass in a __be32 config rom. The ohci_enable() function shared between pci_probe and pci_resume takes a host endian config rom, but ohci->config_rom is __be32. This sets up the config rom in the wrong endian on little endian machine, specifically, BusOptions will be initialized to a 0 max receive size. This patch changes the way we reuse the config rom so that we avoid this problem. Signed-off-by: Kristian Hoegsberg Signed-off-by: Stefan Richter commit bad1bfb50d0f13d1f07f9973517a898a5e192e3d Author: Stefan Richter Date: Fri Aug 3 20:56:31 2007 +0200 firewire: fw-core: local variable shadows a global one Sparse warned about it although it was apparently harmless: drivers/firewire/fw-cdev.c:624:23: warning: symbol 'interrupt' shadows an earlier one include/asm/hw_irq.h:29:13: originally declared here Signed-off-by: Stefan Richter commit da9f857d30b890ff9d22bab72baf653d4875236f Author: Stefan Richter Date: Sat Aug 4 19:07:42 2007 +0200 roll back last firewire commits commit 619111d849ac2ef32123f71eb9af71b39a465c9a Author: Stefan Richter Date: Thu Aug 2 20:13:13 2007 +0200 Revert "firewire: fw-core: shrink the init function" This reverts commit a2354f71f88568c2fb295664c6a80d89b93324bb. commit 6ad42edd81e948e2f3278d0d3e5f4a36f83eca3c Author: Stefan Richter Date: Wed Aug 1 20:30:36 2007 +0200 ieee1394: revert "sbp2: enforce 32bit DMA mapping" Revert commit 0555659d63c285ceb7ead3115532e1b71b0f27a7 from 2.6.22-rc1. The dma_set_mask call somehow failed on a PowerMac G5, PPC64: http://lkml.org/lkml/2007/8/1/344 Should there ever occur a DMA mapping beyond the physical DMA range, a proper SBP-2 firmware will report transport errors. So let's leave it at that. Signed-off-by: Stefan Richter Tested-by: Olaf Hering commit a3d08165feaefb8bd5b294d5f464e30b904566a0 Author: Stefan Richter Date: Sun Jul 29 00:01:35 2007 +0200 ieee1394: pcilynx: superfluous local variables Signed-off-by: Stefan Richter commit 05495f9042c5aeed5d17f29531bc637e75c399f0 Author: Stefan Richter Date: Sat Jul 28 23:45:03 2007 +0200 ieee1394: eth1394: fix lock imbalance bad_proto can be reached from points which did not take priv->lock. Signed-off-by: Stefan Richter commit 9fc5fd1a634bf3ddb2bfc077b341d044e2b666de Author: Stefan Richter Date: Sat Jul 28 23:44:25 2007 +0200 ieee1394: eth1394: superfluous local variable Signed-off-by: Stefan Richter commit a2354f71f88568c2fb295664c6a80d89b93324bb Author: Stefan Richter Date: Sun Jul 29 20:40:04 2007 +0200 firewire: fw-core: shrink the init function by 208 bytes on x86-64, 112 bytes on i586. Signed-off-by: Stefan Richter commit 52c32d15ad031b8a3d8e5e119792609a6721d47d Author: Stefan Richter Date: Sun Jul 29 20:40:04 2007 +0200 firewire: fw-core: make two variables static Signed-off-by: Stefan Richter commit ab0f04efa6fa31b485424e28a3661ce764194367 Author: Stefan Richter Date: Thu Jul 26 01:43:40 2007 +0200 firewire: fw-sbp2: remove some log messages Signed-off-by: Stefan Richter commit ed6a36016077d831b92f8a775f340a96aa4960f5 Author: Stefan Richter Date: Sun Jul 29 19:40:07 2007 +0200 firewire: fw-sbp2: add support for multiple logical units per target This makes multiple logical units on a single target accessible to fw-sbp2. Successfully tested with the IOI FWB-IDE01AB dual LU bridge. Signed-off-by: Stefan Richter commit a8b974f5e01aba031a767a28616d439bb5be94cd Author: Stefan Richter Date: Sun Jul 29 03:04:15 2007 +0200 firewire: fw-sbp2: split logical unit data from target data struct sbp2_device is replaced by struct sbp2_target and struct sbp2_logical_unit. This prepares support of multiple logical units per target. Signed-off-by: Stefan Richter commit a2fb3f0b42e9d0012fe0036b8f8d4371ba4b858b Author: Stefan Richter Date: Sun Jul 29 03:03:07 2007 +0200 firewire: fw-sbp2: use one Scsi_Host for all targets This rework prepares support of multiple logical units per target. Instead of one instance of struct Scsi_Host per target, only one Scsi_Host global to fw-sbp2 is now used. We could also use one Scsi_Host per FireWire host, but that would add more overhead for no real benefit. The following user-visible changes result: - The generic device of the Scsi_Host is registered as a platform device. Hence it and the target devices and logical unit devices will be sitting below /sys/devices/platform/host*/ rather than within the PCI devices tree. - In the SCSI stack's H:C:T:L tuple, the H is now constant for all fw-sbp2 devices but the T is unique. We currently allocate T as stupidly as the H was allocated before: It is simply increased whenever a target is added. Neither of these changes should affect userspace, because none of the mentioned device properties have been of any interest to userspace before. Signed-off-by: Stefan Richter commit 1fbbb13a05fdc8cf8e778aa834d2e31e68193ee4 Author: Stefan Richter Date: Thu Jul 26 01:38:39 2007 +0200 firewire: remove unused macros Signed-off-by: Stefan Richter commit d9b6313c4d390dc6f4388c07d40ce0d606258458 Author: Stefan Richter Date: Sun Jul 29 01:50:37 2007 +0200 firewire: fw-sbp2: sanitize list handling - The ORB list iteration unsafely removed list items under itself. - The "ORB found" logic relied on implementation details of list_for_each_entry and was unreadable. Signed-off-by: Stefan Richter commit 644f24f97935b8de286eb6f6e6a2e67251958ce0 Author: Stefan Richter Date: Wed Jul 25 19:18:08 2007 +0200 firewire: fw-ohci: dma_free_coherent needs IRQs enabled Signed-off-by: Stefan Richter commit 5b402b97b6f98823f5950ca61d850f552ff042c9 Author: Stefan Richter Date: Sat Jul 21 22:43:05 2007 +0200 firewire: fw-sbp2: set correct maximum payload (fixes CardBus adapters) As far as I know, all CardBus FireWire 400 adapters have a maximum payload of 1024 bytes which is less than the speed-dependent limit of 2048 bytes. Fw-sbp2 has to take the host adapter's limit into account. This apparently fixes Juju's incompatibility with my CardBus cards, a NEC based card and a VIA based card. Signed-off-by: Stefan Richter commit 4e7210a2d7eac65134bcb340bd3814e5adba2c1d Author: Stefan Richter Date: Sat Jul 21 17:51:22 2007 +0200 ieee1394: sbp2: more correct Kconfig dependencies Make the option SBP2_PHYS_DMA available on all architectures where it compiles. This includes x86-64 where I runtime-tested it successfully. Signed-off-by: Stefan Richter commit 62d8f1e2e8efadb6d8f7d9c802adebef98c0081e Author: Stefan Richter Date: Tue Jul 17 02:10:16 2007 +0200 firewire: optimize fw_core_add_address_handler Potentially avoids unnecessary loop runs. Guarantee quadlet-aligned starts of address regions. Document the return values. Signed-off-by: Stefan Richter commit ccfab837384b2f125a2d1c179caf70032cbaecc8 Author: Kristian Høgsberg Date: Tue Jun 5 19:27:05 2007 -0400 firewire: Fix pci resume to not pass in a __be32 config rom. The ohci_enable() function shared between pci_probe and pci_resume takes a host endian config rom, but ohci->config_rom is __be32. This sets up the config rom in the wrong endian on little endian machine, specifically, BusOptions will be initialized to a 0 max receive size. This patch changes the way we reuse the config rom so that we avoid this problem. Signed-off-by: Kristian Hoegsberg Signed-off-by: Stefan Richter Signed-off-by: Andrew Morton --- drivers/firewire/fw-cdev.c | 21 drivers/firewire/fw-device.h | 5 drivers/firewire/fw-ohci.c | 66 +- drivers/firewire/fw-sbp2.c | 655 ++++++++++++++++------------ drivers/firewire/fw-transaction.c | 12 drivers/ieee1394/eth1394.c | 16 drivers/ieee1394/nodemgr.c | 3 drivers/ieee1394/pcilynx.c | 3 drivers/ieee1394/sbp2.c | 15 9 files changed, 474 insertions(+), 322 deletions(-) diff -puN drivers/firewire/fw-cdev.c~git-ieee1394 drivers/firewire/fw-cdev.c --- a/drivers/firewire/fw-cdev.c~git-ieee1394 +++ a/drivers/firewire/fw-cdev.c @@ -621,20 +621,19 @@ iso_callback(struct fw_iso_context *cont size_t header_length, void *header, void *data) { struct client *client = data; - struct iso_interrupt *interrupt; + struct iso_interrupt *irq; - interrupt = kzalloc(sizeof(*interrupt) + header_length, GFP_ATOMIC); - if (interrupt == NULL) + irq = kzalloc(sizeof(*irq) + header_length, GFP_ATOMIC); + if (irq == NULL) return; - interrupt->interrupt.type = FW_CDEV_EVENT_ISO_INTERRUPT; - interrupt->interrupt.closure = client->iso_closure; - interrupt->interrupt.cycle = cycle; - interrupt->interrupt.header_length = header_length; - memcpy(interrupt->interrupt.header, header, header_length); - queue_event(client, &interrupt->event, - &interrupt->interrupt, - sizeof(interrupt->interrupt) + header_length, NULL, 0); + irq->interrupt.type = FW_CDEV_EVENT_ISO_INTERRUPT; + irq->interrupt.closure = client->iso_closure; + irq->interrupt.cycle = cycle; + irq->interrupt.header_length = header_length; + memcpy(irq->interrupt.header, header, header_length); + queue_event(client, &irq->event, &irq->interrupt, + sizeof(irq->interrupt) + header_length, NULL, 0); } static int ioctl_create_iso_context(struct client *client, void *buffer) diff -puN drivers/firewire/fw-device.h~git-ieee1394 drivers/firewire/fw-device.h --- a/drivers/firewire/fw-device.h~git-ieee1394 +++ a/drivers/firewire/fw-device.h @@ -102,11 +102,6 @@ fw_unit(struct device *dev) #define CSR_INSTANCE 0x18 #define CSR_DIRECTORY_ID 0x20 -#define SBP2_COMMAND_SET_SPECIFIER 0x38 -#define SBP2_COMMAND_SET 0x39 -#define SBP2_COMMAND_SET_REVISION 0x3b -#define SBP2_FIRMWARE_REVISION 0x3c - struct fw_csr_iterator { u32 *p; u32 *end; diff -puN drivers/firewire/fw-ohci.c~git-ieee1394 drivers/firewire/fw-ohci.c --- a/drivers/firewire/fw-ohci.c~git-ieee1394 +++ a/drivers/firewire/fw-ohci.c @@ -18,21 +18,23 @@ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include -#include -#include -#include -#include +#include #include -#include #include +#include +#include +#include +#include #include +#include +#include +#include -#include -#include +#include +#include -#include "fw-transaction.h" #include "fw-ohci.h" +#include "fw-transaction.h" #define DESCRIPTOR_OUTPUT_MORE 0 #define DESCRIPTOR_OUTPUT_LAST (1 << 12) @@ -926,12 +928,14 @@ static void bus_reset_tasklet(unsigned l self_id_count = (reg_read(ohci, OHCI1394_SelfIDCount) >> 3) & 0x3ff; generation = (le32_to_cpu(ohci->self_id_cpu[0]) >> 16) & 0xff; + rmb(); for (i = 1, j = 0; j < self_id_count; i += 2, j++) { if (ohci->self_id_cpu[i] != ~ohci->self_id_cpu[i + 1]) fw_error("inconsistent self IDs\n"); ohci->self_id_buffer[j] = le32_to_cpu(ohci->self_id_cpu[i]); } + rmb(); /* * Check the consistency of the self IDs we just read. The @@ -972,8 +976,10 @@ static void bus_reset_tasklet(unsigned l */ if (ohci->next_config_rom != NULL) { - free_rom = ohci->config_rom; - free_rom_bus = ohci->config_rom_bus; + if (ohci->next_config_rom != ohci->config_rom) { + free_rom = ohci->config_rom; + free_rom_bus = ohci->config_rom_bus; + } ohci->config_rom = ohci->next_config_rom; ohci->config_rom_bus = ohci->next_config_rom_bus; ohci->next_config_rom = NULL; @@ -1046,6 +1052,9 @@ static irqreturn_t irq_handler(int irq, iso_event &= ~(1 << i); } + if (unlikely(event & OHCI1394_postedWriteErr)) + fw_error("PCI posted write error\n"); + if (event & OHCI1394_cycle64Seconds) { cycle_time = reg_read(ohci, OHCI1394_IsochronousCycleTimer); if ((cycle_time & 0x80000000) == 0) @@ -1119,8 +1128,8 @@ static int ohci_enable(struct fw_card *c OHCI1394_RQPkt | OHCI1394_RSPkt | OHCI1394_reqTxComplete | OHCI1394_respTxComplete | OHCI1394_isochRx | OHCI1394_isochTx | - OHCI1394_masterIntEnable | - OHCI1394_cycle64Seconds); + OHCI1394_postedWriteErr | OHCI1394_cycle64Seconds | + OHCI1394_masterIntEnable); /* Activate link_on bit and contender bit in our self ID packets.*/ if (ohci_update_phy_reg(card, 4, 0, @@ -1146,19 +1155,30 @@ static int ohci_enable(struct fw_card *c * the right values in the bus reset tasklet. */ - ohci->next_config_rom = - dma_alloc_coherent(ohci->card.device, CONFIG_ROM_SIZE, - &ohci->next_config_rom_bus, GFP_KERNEL); - if (ohci->next_config_rom == NULL) - return -ENOMEM; + if (config_rom) { + ohci->next_config_rom = + dma_alloc_coherent(ohci->card.device, CONFIG_ROM_SIZE, + &ohci->next_config_rom_bus, + GFP_KERNEL); + if (ohci->next_config_rom == NULL) + return -ENOMEM; - memset(ohci->next_config_rom, 0, CONFIG_ROM_SIZE); - fw_memcpy_to_be32(ohci->next_config_rom, config_rom, length * 4); + memset(ohci->next_config_rom, 0, CONFIG_ROM_SIZE); + fw_memcpy_to_be32(ohci->next_config_rom, config_rom, length * 4); + } else { + /* + * In the suspend case, config_rom is NULL, which + * means that we just reuse the old config rom. + */ + ohci->next_config_rom = ohci->config_rom; + ohci->next_config_rom_bus = ohci->config_rom_bus; + } - ohci->next_header = config_rom[0]; + ohci->next_header = be32_to_cpu(ohci->next_config_rom[0]); ohci->next_config_rom[0] = 0; reg_write(ohci, OHCI1394_ConfigROMhdr, 0); - reg_write(ohci, OHCI1394_BusOptions, config_rom[2]); + reg_write(ohci, OHCI1394_BusOptions, + be32_to_cpu(ohci->next_config_rom[2])); reg_write(ohci, OHCI1394_ConfigROMmap, ohci->next_config_rom_bus); reg_write(ohci, OHCI1394_AsReqFilterHiSet, 0x80000000); @@ -1966,7 +1986,7 @@ static int pci_resume(struct pci_dev *pd return err; } - return ohci_enable(&ohci->card, ohci->config_rom, CONFIG_ROM_SIZE); + return ohci_enable(&ohci->card, NULL, 0); } #endif diff -puN drivers/firewire/fw-sbp2.c~git-ieee1394 drivers/firewire/fw-sbp2.c --- a/drivers/firewire/fw-sbp2.c~git-ieee1394 +++ a/drivers/firewire/fw-sbp2.c @@ -37,11 +37,12 @@ #include #include #include +#include #include +#include #include #include -#include #include #include @@ -61,36 +62,94 @@ module_param_named(exclusive_login, sbp2 MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device " "(default = Y, use N for concurrent initiators)"); +/* + * Flags for firmware oddities + * + * - 128kB max transfer + * Limit transfer size. Necessary for some old bridges. + * + * - 36 byte inquiry + * When scsi_mod probes the device, let the inquiry command look like that + * from MS Windows. + * + * - skip mode page 8 + * Suppress sending of mode_sense for mode page 8 if the device pretends to + * support the SCSI Primary Block commands instead of Reduced Block Commands. + * + * - fix capacity + * Tell sd_mod to correct the last sector number reported by read_capacity. + * Avoids access beyond actual disk limits on devices with an off-by-one bug. + * Don't use this with devices which don't have this bug. + * + * - override internal blacklist + * Instead of adding to the built-in blacklist, use only the workarounds + * specified in the module load parameter. + * Useful if a blacklist entry interfered with a non-broken device. + */ +#define SBP2_WORKAROUND_128K_MAX_TRANS 0x1 +#define SBP2_WORKAROUND_INQUIRY_36 0x2 +#define SBP2_WORKAROUND_MODE_SENSE_8 0x4 +#define SBP2_WORKAROUND_FIX_CAPACITY 0x8 +#define SBP2_WORKAROUND_OVERRIDE 0x100 + +static int sbp2_param_workarounds; +module_param_named(workarounds, sbp2_param_workarounds, int, 0644); +MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0" + ", 128kB max transfer = " __stringify(SBP2_WORKAROUND_128K_MAX_TRANS) + ", 36 byte inquiry = " __stringify(SBP2_WORKAROUND_INQUIRY_36) + ", skip mode page 8 = " __stringify(SBP2_WORKAROUND_MODE_SENSE_8) + ", fix capacity = " __stringify(SBP2_WORKAROUND_FIX_CAPACITY) + ", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE) + ", or a combination)"); + /* I don't know why the SCSI stack doesn't define something like this... */ typedef void (*scsi_done_fn_t)(struct scsi_cmnd *); static const char sbp2_driver_name[] = "sbp2"; -struct sbp2_device { - struct kref kref; - struct fw_unit *unit; +/* + * We create one struct sbp2_logical_unit per SBP-2 Logical Unit Number Entry + * and one struct scsi_device per sbp2_logical_unit. + */ +struct sbp2_logical_unit { + struct sbp2_target *tgt; + struct list_head link; + struct scsi_device *sdev; struct fw_address_handler address_handler; struct list_head orb_list; - u64 management_agent_address; + u64 command_block_agent_address; - u32 workarounds; + u16 lun; int login_id; /* - * We cache these addresses and only update them once we've - * logged in or reconnected to the sbp2 device. That way, any - * IO to the device will automatically fail and get retried if - * it happens in a window where the device is not ready to - * handle it (e.g. after a bus reset but before we reconnect). + * The generation is updated once we've logged in or reconnected + * to the logical unit. Thus, I/O to the device will automatically + * fail and get retried if it happens in a window where the device + * is not ready, e.g. after a bus reset but before we reconnect. */ - int node_id; - int address_high; int generation; - int retries; struct delayed_work work; }; +/* + * We create one struct sbp2_target per IEEE 1212 Unit Directory + * and one struct Scsi_Host per sbp2_target. + */ +struct sbp2_target { + struct kref kref; + struct fw_unit *unit; + + u64 management_agent_address; + int directory_id; + int node_id; + int address_high; + + unsigned workarounds; + struct list_head lu_list; +}; + #define SBP2_MAX_SG_ELEMENT_LENGTH 0xf000 #define SBP2_MAX_SECTORS 255 /* Max sectors supported */ #define SBP2_ORB_TIMEOUT 2000 /* Timeout in ms */ @@ -101,17 +160,9 @@ struct sbp2_device { #define SBP2_DIRECTION_FROM_MEDIA 0x1 /* Unit directory keys */ -#define SBP2_COMMAND_SET_SPECIFIER 0x38 -#define SBP2_COMMAND_SET 0x39 -#define SBP2_COMMAND_SET_REVISION 0x3b -#define SBP2_FIRMWARE_REVISION 0x3c - -/* Flags for detected oddities and brokeness */ -#define SBP2_WORKAROUND_128K_MAX_TRANS 0x1 -#define SBP2_WORKAROUND_INQUIRY_36 0x2 -#define SBP2_WORKAROUND_MODE_SENSE_8 0x4 -#define SBP2_WORKAROUND_FIX_CAPACITY 0x8 -#define SBP2_WORKAROUND_OVERRIDE 0x100 +#define SBP2_CSR_FIRMWARE_REVISION 0x3c +#define SBP2_CSR_LOGICAL_UNIT_NUMBER 0x14 +#define SBP2_CSR_LOGICAL_UNIT_DIRECTORY 0xd4 /* Management orb opcodes */ #define SBP2_LOGIN_REQUEST 0x0 @@ -219,7 +270,7 @@ struct sbp2_command_orb { } request; struct scsi_cmnd *cmd; scsi_done_fn_t done; - struct fw_unit *unit; + struct sbp2_logical_unit *lu; struct sbp2_pointer page_table[SG_ALL] __attribute__((aligned(8))); dma_addr_t page_table_bus; @@ -295,7 +346,7 @@ sbp2_status_write(struct fw_card *card, unsigned long long offset, void *payload, size_t length, void *callback_data) { - struct sbp2_device *sd = callback_data; + struct sbp2_logical_unit *lu = callback_data; struct sbp2_orb *orb; struct sbp2_status status; size_t header_size; @@ -319,7 +370,7 @@ sbp2_status_write(struct fw_card *card, /* Lookup the orb corresponding to this status write. */ spin_lock_irqsave(&card->lock, flags); - list_for_each_entry(orb, &sd->orb_list, link) { + list_for_each_entry(orb, &lu->orb_list, link) { if (STATUS_GET_ORB_HIGH(status) == 0 && STATUS_GET_ORB_LOW(status) == orb->request_bus) { orb->rcode = RCODE_COMPLETE; @@ -329,7 +380,7 @@ sbp2_status_write(struct fw_card *card, } spin_unlock_irqrestore(&card->lock, flags); - if (&orb->link != &sd->orb_list) + if (&orb->link != &lu->orb_list) orb->callback(orb, &status); else fw_error("status write for unknown orb\n"); @@ -361,20 +412,20 @@ complete_transaction(struct fw_card *car orb->rcode = rcode; if (orb->rcode != RCODE_COMPLETE) { list_del(&orb->link); + spin_unlock_irqrestore(&card->lock, flags); orb->callback(orb, NULL); + } else { + spin_unlock_irqrestore(&card->lock, flags); } - spin_unlock_irqrestore(&card->lock, flags); - kref_put(&orb->kref, free_orb); } static void -sbp2_send_orb(struct sbp2_orb *orb, struct fw_unit *unit, +sbp2_send_orb(struct sbp2_orb *orb, struct sbp2_logical_unit *lu, int node_id, int generation, u64 offset) { - struct fw_device *device = fw_device(unit->device.parent); - struct sbp2_device *sd = unit->device.driver_data; + struct fw_device *device = fw_device(lu->tgt->unit->device.parent); unsigned long flags; orb->pointer.high = 0; @@ -382,7 +433,7 @@ sbp2_send_orb(struct sbp2_orb *orb, stru fw_memcpy_to_be32(&orb->pointer, &orb->pointer, sizeof(orb->pointer)); spin_lock_irqsave(&device->card->lock, flags); - list_add_tail(&orb->link, &sd->orb_list); + list_add_tail(&orb->link, &lu->orb_list); spin_unlock_irqrestore(&device->card->lock, flags); /* Take a ref for the orb list and for the transaction callback. */ @@ -395,10 +446,9 @@ sbp2_send_orb(struct sbp2_orb *orb, stru complete_transaction, orb); } -static int sbp2_cancel_orbs(struct fw_unit *unit) +static int sbp2_cancel_orbs(struct sbp2_logical_unit *lu) { - struct fw_device *device = fw_device(unit->device.parent); - struct sbp2_device *sd = unit->device.driver_data; + struct fw_device *device = fw_device(lu->tgt->unit->device.parent); struct sbp2_orb *orb, *next; struct list_head list; unsigned long flags; @@ -406,7 +456,7 @@ static int sbp2_cancel_orbs(struct fw_un INIT_LIST_HEAD(&list); spin_lock_irqsave(&device->card->lock, flags); - list_splice_init(&sd->orb_list, &list); + list_splice_init(&lu->orb_list, &list); spin_unlock_irqrestore(&device->card->lock, flags); list_for_each_entry_safe(orb, next, &list, link) { @@ -433,11 +483,11 @@ complete_management_orb(struct sbp2_orb } static int -sbp2_send_management_orb(struct fw_unit *unit, int node_id, int generation, - int function, int lun, void *response) +sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id, + int generation, int function, int lun_or_login_id, + void *response) { - struct fw_device *device = fw_device(unit->device.parent); - struct sbp2_device *sd = unit->device.driver_data; + struct fw_device *device = fw_device(lu->tgt->unit->device.parent); struct sbp2_management_orb *orb; int retval = -ENOMEM; @@ -458,12 +508,12 @@ sbp2_send_management_orb(struct fw_unit orb->request.misc = MANAGEMENT_ORB_NOTIFY | MANAGEMENT_ORB_FUNCTION(function) | - MANAGEMENT_ORB_LUN(lun); + MANAGEMENT_ORB_LUN(lun_or_login_id); orb->request.length = MANAGEMENT_ORB_RESPONSE_LENGTH(sizeof(orb->response)); - orb->request.status_fifo.high = sd->address_handler.offset >> 32; - orb->request.status_fifo.low = sd->address_handler.offset; + orb->request.status_fifo.high = lu->address_handler.offset >> 32; + orb->request.status_fifo.low = lu->address_handler.offset; if (function == SBP2_LOGIN_REQUEST) { orb->request.misc |= @@ -482,14 +532,14 @@ sbp2_send_management_orb(struct fw_unit if (dma_mapping_error(orb->base.request_bus)) goto fail_mapping_request; - sbp2_send_orb(&orb->base, unit, - node_id, generation, sd->management_agent_address); + sbp2_send_orb(&orb->base, lu, node_id, generation, + lu->tgt->management_agent_address); wait_for_completion_timeout(&orb->done, msecs_to_jiffies(SBP2_ORB_TIMEOUT)); retval = -EIO; - if (sbp2_cancel_orbs(unit) == 0) { + if (sbp2_cancel_orbs(lu) == 0) { fw_error("orb reply timed out, rcode=0x%02x\n", orb->base.rcode); goto out; @@ -534,10 +584,9 @@ complete_agent_reset_write(struct fw_car kfree(t); } -static int sbp2_agent_reset(struct fw_unit *unit) +static int sbp2_agent_reset(struct sbp2_logical_unit *lu) { - struct fw_device *device = fw_device(unit->device.parent); - struct sbp2_device *sd = unit->device.driver_data; + struct fw_device *device = fw_device(lu->tgt->unit->device.parent); struct fw_transaction *t; static u32 zero; @@ -546,181 +595,272 @@ static int sbp2_agent_reset(struct fw_un return -ENOMEM; fw_send_request(device->card, t, TCODE_WRITE_QUADLET_REQUEST, - sd->node_id, sd->generation, device->max_speed, - sd->command_block_agent_address + SBP2_AGENT_RESET, + lu->tgt->node_id, lu->generation, device->max_speed, + lu->command_block_agent_address + SBP2_AGENT_RESET, &zero, sizeof(zero), complete_agent_reset_write, t); return 0; } -static void sbp2_reconnect(struct work_struct *work); -static struct scsi_host_template scsi_driver_template; - -static void release_sbp2_device(struct kref *kref) +static void sbp2_release_target(struct kref *kref) { - struct sbp2_device *sd = container_of(kref, struct sbp2_device, kref); - struct Scsi_Host *host = - container_of((void *)sd, struct Scsi_Host, hostdata[0]); - - scsi_remove_host(host); - sbp2_send_management_orb(sd->unit, sd->node_id, sd->generation, - SBP2_LOGOUT_REQUEST, sd->login_id, NULL); - fw_core_remove_address_handler(&sd->address_handler); - fw_notify("removed sbp2 unit %s\n", sd->unit->device.bus_id); - put_device(&sd->unit->device); - scsi_host_put(host); + struct sbp2_target *tgt = container_of(kref, struct sbp2_target, kref); + struct sbp2_logical_unit *lu, *next; + struct Scsi_Host *shost = + container_of((void *)tgt, struct Scsi_Host, hostdata[0]); + + list_for_each_entry_safe(lu, next, &tgt->lu_list, link) { + if (lu->sdev) + scsi_remove_device(lu->sdev); + + sbp2_send_management_orb(lu, tgt->node_id, lu->generation, + SBP2_LOGOUT_REQUEST, lu->login_id, NULL); + fw_core_remove_address_handler(&lu->address_handler); + list_del(&lu->link); + kfree(lu); + } + scsi_remove_host(shost); + fw_notify("released %s\n", tgt->unit->device.bus_id); + + put_device(&tgt->unit->device); + scsi_host_put(shost); } +static struct workqueue_struct *sbp2_wq; + +static void sbp2_reconnect(struct work_struct *work); + static void sbp2_login(struct work_struct *work) { - struct sbp2_device *sd = - container_of(work, struct sbp2_device, work.work); - struct Scsi_Host *host = - container_of((void *)sd, struct Scsi_Host, hostdata[0]); - struct fw_unit *unit = sd->unit; + struct sbp2_logical_unit *lu = + container_of(work, struct sbp2_logical_unit, work.work); + struct Scsi_Host *shost = + container_of((void *)lu->tgt, struct Scsi_Host, hostdata[0]); + struct scsi_device *sdev; + struct scsi_lun eight_bytes_lun; + struct fw_unit *unit = lu->tgt->unit; struct fw_device *device = fw_device(unit->device.parent); struct sbp2_login_response response; - int generation, node_id, local_node_id, lun, retval; - - /* FIXME: Make this work for multi-lun devices. */ - lun = 0; + int generation, node_id, local_node_id; generation = device->card->generation; node_id = device->node->node_id; local_node_id = device->card->local_node->node_id; - if (sbp2_send_management_orb(unit, node_id, generation, - SBP2_LOGIN_REQUEST, lun, &response) < 0) { - if (sd->retries++ < 5) { - schedule_delayed_work(&sd->work, DIV_ROUND_UP(HZ, 5)); + if (sbp2_send_management_orb(lu, node_id, generation, + SBP2_LOGIN_REQUEST, lu->lun, &response) < 0) { + if (lu->retries++ < 5) { + queue_delayed_work(sbp2_wq, &lu->work, + DIV_ROUND_UP(HZ, 5)); } else { - fw_error("failed to login to %s\n", - unit->device.bus_id); - kref_put(&sd->kref, release_sbp2_device); + fw_error("failed to login to %s LUN %04x\n", + unit->device.bus_id, lu->lun); + kref_put(&lu->tgt->kref, sbp2_release_target); } return; } - sd->generation = generation; - sd->node_id = node_id; - sd->address_high = local_node_id << 16; + lu->generation = generation; + lu->tgt->node_id = node_id; + lu->tgt->address_high = local_node_id << 16; /* Get command block agent offset and login id. */ - sd->command_block_agent_address = + lu->command_block_agent_address = ((u64) (response.command_block_agent.high & 0xffff) << 32) | response.command_block_agent.low; - sd->login_id = LOGIN_RESPONSE_GET_LOGIN_ID(response); + lu->login_id = LOGIN_RESPONSE_GET_LOGIN_ID(response); - fw_notify("logged in to sbp2 unit %s (%d retries)\n", - unit->device.bus_id, sd->retries); - fw_notify(" - management_agent_address: 0x%012llx\n", - (unsigned long long) sd->management_agent_address); - fw_notify(" - command_block_agent_address: 0x%012llx\n", - (unsigned long long) sd->command_block_agent_address); - fw_notify(" - status write address: 0x%012llx\n", - (unsigned long long) sd->address_handler.offset); + fw_notify("logged in to %s LUN %04x (%d retries)\n", + unit->device.bus_id, lu->lun, lu->retries); #if 0 /* FIXME: The linux1394 sbp2 does this last step. */ sbp2_set_busy_timeout(scsi_id); #endif - PREPARE_DELAYED_WORK(&sd->work, sbp2_reconnect); - sbp2_agent_reset(unit); + PREPARE_DELAYED_WORK(&lu->work, sbp2_reconnect); + sbp2_agent_reset(lu); - /* FIXME: Loop over luns here. */ - lun = 0; - retval = scsi_add_device(host, 0, 0, lun); - if (retval < 0) { - sbp2_send_management_orb(unit, sd->node_id, sd->generation, - SBP2_LOGOUT_REQUEST, sd->login_id, - NULL); + memset(&eight_bytes_lun, 0, sizeof(eight_bytes_lun)); + eight_bytes_lun.scsi_lun[0] = (lu->lun >> 8) & 0xff; + eight_bytes_lun.scsi_lun[1] = lu->lun & 0xff; + + sdev = __scsi_add_device(shost, 0, 0, + scsilun_to_int(&eight_bytes_lun), lu); + if (IS_ERR(sdev)) { + sbp2_send_management_orb(lu, node_id, generation, + SBP2_LOGOUT_REQUEST, lu->login_id, NULL); /* * Set this back to sbp2_login so we fall back and * retry login on bus reset. */ - PREPARE_DELAYED_WORK(&sd->work, sbp2_login); + PREPARE_DELAYED_WORK(&lu->work, sbp2_login); + } else { + lu->sdev = sdev; + scsi_device_put(sdev); } - kref_put(&sd->kref, release_sbp2_device); + kref_put(&lu->tgt->kref, sbp2_release_target); } -static int sbp2_probe(struct device *dev) +static int sbp2_add_logical_unit(struct sbp2_target *tgt, int lun_entry) +{ + struct sbp2_logical_unit *lu; + + lu = kmalloc(sizeof(*lu), GFP_KERNEL); + if (!lu) + return -ENOMEM; + + lu->address_handler.length = 0x100; + lu->address_handler.address_callback = sbp2_status_write; + lu->address_handler.callback_data = lu; + + if (fw_core_add_address_handler(&lu->address_handler, + &fw_high_memory_region) < 0) { + kfree(lu); + return -ENOMEM; + } + + lu->tgt = tgt; + lu->sdev = NULL; + lu->lun = lun_entry & 0xffff; + lu->retries = 0; + INIT_LIST_HEAD(&lu->orb_list); + INIT_DELAYED_WORK(&lu->work, sbp2_login); + + list_add_tail(&lu->link, &tgt->lu_list); + return 0; +} + +static int sbp2_scan_logical_unit_dir(struct sbp2_target *tgt, u32 *directory) { - struct fw_unit *unit = fw_unit(dev); - struct fw_device *device = fw_device(unit->device.parent); - struct sbp2_device *sd; struct fw_csr_iterator ci; - struct Scsi_Host *host; - int i, key, value, err; - u32 model, firmware_revision; + int key, value; - err = -ENOMEM; - host = scsi_host_alloc(&scsi_driver_template, sizeof(*sd)); - if (host == NULL) - goto fail; + fw_csr_iterator_init(&ci, directory); + while (fw_csr_iterator_next(&ci, &key, &value)) + if (key == SBP2_CSR_LOGICAL_UNIT_NUMBER && + sbp2_add_logical_unit(tgt, value) < 0) + return -ENOMEM; + return 0; +} - sd = (struct sbp2_device *) host->hostdata; - unit->device.driver_data = sd; - sd->unit = unit; - INIT_LIST_HEAD(&sd->orb_list); - kref_init(&sd->kref); - - sd->address_handler.length = 0x100; - sd->address_handler.address_callback = sbp2_status_write; - sd->address_handler.callback_data = sd; - - err = fw_core_add_address_handler(&sd->address_handler, - &fw_high_memory_region); - if (err < 0) - goto fail_host; - - err = fw_device_enable_phys_dma(device); - if (err < 0) - goto fail_address_handler; - - err = scsi_add_host(host, &unit->device); - if (err < 0) - goto fail_address_handler; +static int sbp2_scan_unit_dir(struct sbp2_target *tgt, u32 *directory, + u32 *model, u32 *firmware_revision) +{ + struct fw_csr_iterator ci; + int key, value; - /* - * Scan unit directory to get management agent address, - * firmware revison and model. Initialize firmware_revision - * and model to values that wont match anything in our table. - */ - firmware_revision = 0xff000000; - model = 0xff000000; - fw_csr_iterator_init(&ci, unit->directory); + fw_csr_iterator_init(&ci, directory); while (fw_csr_iterator_next(&ci, &key, &value)) { switch (key) { + case CSR_DEPENDENT_INFO | CSR_OFFSET: - sd->management_agent_address = - 0xfffff0000000ULL + 4 * value; + tgt->management_agent_address = + CSR_REGISTER_BASE + 4 * value; break; - case SBP2_FIRMWARE_REVISION: - firmware_revision = value; + + case CSR_DIRECTORY_ID: + tgt->directory_id = value; break; + case CSR_MODEL: - model = value; + *model = value; + break; + + case SBP2_CSR_FIRMWARE_REVISION: + *firmware_revision = value; + break; + + case SBP2_CSR_LOGICAL_UNIT_NUMBER: + if (sbp2_add_logical_unit(tgt, value) < 0) + return -ENOMEM; + break; + + case SBP2_CSR_LOGICAL_UNIT_DIRECTORY: + if (sbp2_scan_logical_unit_dir(tgt, ci.p + value) < 0) + return -ENOMEM; break; } } + return 0; +} + +static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model, + u32 firmware_revision) +{ + int i; + unsigned w = sbp2_param_workarounds; + + if (w) + fw_notify("Please notify linux1394-devel@lists.sourceforge.net " + "if you need the workarounds parameter for %s\n", + tgt->unit->device.bus_id); + + if (w & SBP2_WORKAROUND_OVERRIDE) + goto out; for (i = 0; i < ARRAY_SIZE(sbp2_workarounds_table); i++) { + if (sbp2_workarounds_table[i].firmware_revision != (firmware_revision & 0xffffff00)) continue; + if (sbp2_workarounds_table[i].model != model && sbp2_workarounds_table[i].model != ~0) continue; - sd->workarounds |= sbp2_workarounds_table[i].workarounds; + + w |= sbp2_workarounds_table[i].workarounds; break; } - - if (sd->workarounds) - fw_notify("Workarounds for node %s: 0x%x " + out: + if (w) + fw_notify("Workarounds for %s: 0x%x " "(firmware_revision 0x%06x, model_id 0x%06x)\n", - unit->device.bus_id, - sd->workarounds, firmware_revision, model); + tgt->unit->device.bus_id, + w, firmware_revision, model); + tgt->workarounds = w; +} + +static struct scsi_host_template scsi_driver_template; + +static int sbp2_probe(struct device *dev) +{ + struct fw_unit *unit = fw_unit(dev); + struct fw_device *device = fw_device(unit->device.parent); + struct sbp2_target *tgt; + struct sbp2_logical_unit *lu; + struct Scsi_Host *shost; + u32 model, firmware_revision; + + shost = scsi_host_alloc(&scsi_driver_template, sizeof(*tgt)); + if (shost == NULL) + return -ENOMEM; + + tgt = (struct sbp2_target *)shost->hostdata; + unit->device.driver_data = tgt; + tgt->unit = unit; + kref_init(&tgt->kref); + INIT_LIST_HEAD(&tgt->lu_list); + + if (fw_device_enable_phys_dma(device) < 0) + goto fail_shost_put; + + if (scsi_add_host(shost, &unit->device) < 0) + goto fail_shost_put; + + /* Initialize to values that won't match anything in our table. */ + firmware_revision = 0xff000000; + model = 0xff000000; + + /* implicit directory ID */ + tgt->directory_id = ((unit->directory - device->config_rom) * 4 + + CSR_CONFIG_ROM) & 0xffffff; + + if (sbp2_scan_unit_dir(tgt, unit->directory, &model, + &firmware_revision) < 0) + goto fail_tgt_put; + + sbp2_init_workarounds(tgt, model, firmware_revision); get_device(&unit->device); @@ -729,35 +869,34 @@ static int sbp2_probe(struct device *dev * reschedule retries. Always get the ref before scheduling * work. */ - INIT_DELAYED_WORK(&sd->work, sbp2_login); - if (schedule_delayed_work(&sd->work, 0)) - kref_get(&sd->kref); - + list_for_each_entry(lu, &tgt->lu_list, link) + if (queue_delayed_work(sbp2_wq, &lu->work, 0)) + kref_get(&tgt->kref); return 0; - fail_address_handler: - fw_core_remove_address_handler(&sd->address_handler); - fail_host: - scsi_host_put(host); - fail: - return err; + fail_tgt_put: + kref_put(&tgt->kref, sbp2_release_target); + return -ENOMEM; + + fail_shost_put: + scsi_host_put(shost); + return -ENOMEM; } static int sbp2_remove(struct device *dev) { struct fw_unit *unit = fw_unit(dev); - struct sbp2_device *sd = unit->device.driver_data; - - kref_put(&sd->kref, release_sbp2_device); + struct sbp2_target *tgt = unit->device.driver_data; + kref_put(&tgt->kref, sbp2_release_target); return 0; } static void sbp2_reconnect(struct work_struct *work) { - struct sbp2_device *sd = - container_of(work, struct sbp2_device, work.work); - struct fw_unit *unit = sd->unit; + struct sbp2_logical_unit *lu = + container_of(work, struct sbp2_logical_unit, work.work); + struct fw_unit *unit = lu->tgt->unit; struct fw_device *device = fw_device(unit->device.parent); int generation, node_id, local_node_id; @@ -765,40 +904,49 @@ static void sbp2_reconnect(struct work_s node_id = device->node->node_id; local_node_id = device->card->local_node->node_id; - if (sbp2_send_management_orb(unit, node_id, generation, + if (sbp2_send_management_orb(lu, node_id, generation, SBP2_RECONNECT_REQUEST, - sd->login_id, NULL) < 0) { - if (sd->retries++ >= 5) { + lu->login_id, NULL) < 0) { + if (lu->retries++ >= 5) { fw_error("failed to reconnect to %s\n", unit->device.bus_id); /* Fall back and try to log in again. */ - sd->retries = 0; - PREPARE_DELAYED_WORK(&sd->work, sbp2_login); + lu->retries = 0; + PREPARE_DELAYED_WORK(&lu->work, sbp2_login); } - schedule_delayed_work(&sd->work, DIV_ROUND_UP(HZ, 5)); + queue_delayed_work(sbp2_wq, &lu->work, DIV_ROUND_UP(HZ, 5)); return; } - sd->generation = generation; - sd->node_id = node_id; - sd->address_high = local_node_id << 16; - - fw_notify("reconnected to unit %s (%d retries)\n", - unit->device.bus_id, sd->retries); - sbp2_agent_reset(unit); - sbp2_cancel_orbs(unit); - kref_put(&sd->kref, release_sbp2_device); + lu->generation = generation; + lu->tgt->node_id = node_id; + lu->tgt->address_high = local_node_id << 16; + + fw_notify("reconnected to %s LUN %04x (%d retries)\n", + unit->device.bus_id, lu->lun, lu->retries); + + sbp2_agent_reset(lu); + sbp2_cancel_orbs(lu); + + kref_put(&lu->tgt->kref, sbp2_release_target); } static void sbp2_update(struct fw_unit *unit) { - struct fw_device *device = fw_device(unit->device.parent); - struct sbp2_device *sd = unit->device.driver_data; + struct sbp2_target *tgt = unit->device.driver_data; + struct sbp2_logical_unit *lu; - sd->retries = 0; - fw_device_enable_phys_dma(device); - if (schedule_delayed_work(&sd->work, 0)) - kref_get(&sd->kref); + fw_device_enable_phys_dma(fw_device(unit->device.parent)); + + /* + * Fw-core serializes sbp2_update() against sbp2_remove(). + * Iteration over tgt->lu_list is therefore safe here. + */ + list_for_each_entry(lu, &tgt->lu_list, link) { + lu->retries = 0; + if (queue_delayed_work(sbp2_wq, &lu->work, 0)) + kref_get(&tgt->kref); + } } #define SBP2_UNIT_SPEC_ID_ENTRY 0x0000609e @@ -868,13 +1016,12 @@ complete_command_orb(struct sbp2_orb *ba { struct sbp2_command_orb *orb = container_of(base_orb, struct sbp2_command_orb, base); - struct fw_unit *unit = orb->unit; - struct fw_device *device = fw_device(unit->device.parent); + struct fw_device *device = fw_device(orb->lu->tgt->unit->device.parent); int result; if (status != NULL) { if (STATUS_GET_DEAD(*status)) - sbp2_agent_reset(unit); + sbp2_agent_reset(orb->lu); switch (STATUS_GET_RESPONSE(*status)) { case SBP2_STATUS_REQUEST_COMPLETE: @@ -918,12 +1065,10 @@ complete_command_orb(struct sbp2_orb *ba orb->done(orb->cmd); } -static int sbp2_command_orb_map_scatterlist(struct sbp2_command_orb *orb) +static int +sbp2_map_scatterlist(struct sbp2_command_orb *orb, struct fw_device *device, + struct sbp2_logical_unit *lu) { - struct sbp2_device *sd = - (struct sbp2_device *)orb->cmd->device->host->hostdata; - struct fw_unit *unit = sd->unit; - struct fw_device *device = fw_device(unit->device.parent); struct scatterlist *sg; int sg_len, l, i, j, count; dma_addr_t sg_addr; @@ -942,10 +1087,9 @@ static int sbp2_command_orb_map_scatterl * tables. */ if (count == 1 && sg_dma_len(sg) < SBP2_MAX_SG_ELEMENT_LENGTH) { - orb->request.data_descriptor.high = sd->address_high; + orb->request.data_descriptor.high = lu->tgt->address_high; orb->request.data_descriptor.low = sg_dma_address(sg); - orb->request.misc |= - COMMAND_ORB_DATA_SIZE(sg_dma_len(sg)); + orb->request.misc |= COMMAND_ORB_DATA_SIZE(sg_dma_len(sg)); return 0; } @@ -989,7 +1133,7 @@ static int sbp2_command_orb_map_scatterl * initiator (i.e. us), but data_descriptor can refer to data * on other nodes so we need to put our ID in descriptor.high. */ - orb->request.data_descriptor.high = sd->address_high; + orb->request.data_descriptor.high = lu->tgt->address_high; orb->request.data_descriptor.low = orb->page_table_bus; orb->request.misc |= COMMAND_ORB_PAGE_TABLE_PRESENT | @@ -1008,12 +1152,11 @@ static int sbp2_command_orb_map_scatterl static int sbp2_scsi_queuecommand(struct scsi_cmnd *cmd, scsi_done_fn_t done) { - struct sbp2_device *sd = - (struct sbp2_device *)cmd->device->host->hostdata; - struct fw_unit *unit = sd->unit; - struct fw_device *device = fw_device(unit->device.parent); + struct sbp2_logical_unit *lu = cmd->device->hostdata; + struct fw_device *device = fw_device(lu->tgt->unit->device.parent); struct sbp2_command_orb *orb; unsigned max_payload; + int retval = SCSI_MLQUEUE_HOST_BUSY; /* * Bidirectional commands are not yet implemented, and unknown @@ -1029,14 +1172,14 @@ static int sbp2_scsi_queuecommand(struct orb = kzalloc(sizeof(*orb), GFP_ATOMIC); if (orb == NULL) { fw_notify("failed to alloc orb\n"); - goto fail_alloc; + return SCSI_MLQUEUE_HOST_BUSY; } /* Initialize rcode to something not RCODE_COMPLETE. */ orb->base.rcode = -1; kref_init(&orb->base.kref); - orb->unit = unit; + orb->lu = lu; orb->done = done; orb->cmd = cmd; @@ -1062,8 +1205,8 @@ static int sbp2_scsi_queuecommand(struct orb->request.misc |= COMMAND_ORB_DIRECTION(SBP2_DIRECTION_TO_MEDIA); - if (scsi_sg_count(cmd) && sbp2_command_orb_map_scatterlist(orb) < 0) - goto fail_mapping; + if (scsi_sg_count(cmd) && sbp2_map_scatterlist(orb, device, lu) < 0) + goto out; fw_memcpy_to_be32(&orb->request, &orb->request, sizeof(orb->request)); @@ -1076,49 +1219,47 @@ static int sbp2_scsi_queuecommand(struct dma_map_single(device->card->device, &orb->request, sizeof(orb->request), DMA_TO_DEVICE); if (dma_mapping_error(orb->base.request_bus)) - goto fail_mapping; - - sbp2_send_orb(&orb->base, unit, sd->node_id, sd->generation, - sd->command_block_agent_address + SBP2_ORB_POINTER); - - kref_put(&orb->base.kref, free_orb); - return 0; + goto out; - fail_mapping: + sbp2_send_orb(&orb->base, lu, lu->tgt->node_id, lu->generation, + lu->command_block_agent_address + SBP2_ORB_POINTER); + retval = 0; + out: kref_put(&orb->base.kref, free_orb); - fail_alloc: - return SCSI_MLQUEUE_HOST_BUSY; + return retval; } static int sbp2_scsi_slave_alloc(struct scsi_device *sdev) { - struct sbp2_device *sd = (struct sbp2_device *)sdev->host->hostdata; + struct sbp2_logical_unit *lu = sdev->hostdata; sdev->allow_restart = 1; - if (sd->workarounds & SBP2_WORKAROUND_INQUIRY_36) + if (lu->tgt->workarounds & SBP2_WORKAROUND_INQUIRY_36) sdev->inquiry_len = 36; + return 0; } static int sbp2_scsi_slave_configure(struct scsi_device *sdev) { - struct sbp2_device *sd = (struct sbp2_device *)sdev->host->hostdata; - struct fw_unit *unit = sd->unit; + struct sbp2_logical_unit *lu = sdev->hostdata; sdev->use_10_for_rw = 1; if (sdev->type == TYPE_ROM) sdev->use_10_for_ms = 1; + if (sdev->type == TYPE_DISK && - sd->workarounds & SBP2_WORKAROUND_MODE_SENSE_8) + lu->tgt->workarounds & SBP2_WORKAROUND_MODE_SENSE_8) sdev->skip_ms_page_8 = 1; - if (sd->workarounds & SBP2_WORKAROUND_FIX_CAPACITY) { - fw_notify("setting fix_capacity for %s\n", unit->device.bus_id); + + if (lu->tgt->workarounds & SBP2_WORKAROUND_FIX_CAPACITY) sdev->fix_capacity = 1; - } - if (sd->workarounds & SBP2_WORKAROUND_128K_MAX_TRANS) + + if (lu->tgt->workarounds & SBP2_WORKAROUND_128K_MAX_TRANS) blk_queue_max_sectors(sdev->request_queue, 128 * 1024 / 512); + return 0; } @@ -1128,13 +1269,11 @@ static int sbp2_scsi_slave_configure(str */ static int sbp2_scsi_abort(struct scsi_cmnd *cmd) { - struct sbp2_device *sd = - (struct sbp2_device *)cmd->device->host->hostdata; - struct fw_unit *unit = sd->unit; + struct sbp2_logical_unit *lu = cmd->device->hostdata; fw_notify("sbp2_scsi_abort\n"); - sbp2_agent_reset(unit); - sbp2_cancel_orbs(unit); + sbp2_agent_reset(lu); + sbp2_cancel_orbs(lu); return SUCCESS; } @@ -1151,37 +1290,18 @@ sbp2_sysfs_ieee1394_id_show(struct devic char *buf) { struct scsi_device *sdev = to_scsi_device(dev); - struct sbp2_device *sd; - struct fw_unit *unit; + struct sbp2_logical_unit *lu; struct fw_device *device; - u32 directory_id; - struct fw_csr_iterator ci; - int key, value, lun; if (!sdev) return 0; - sd = (struct sbp2_device *)sdev->host->hostdata; - unit = sd->unit; - device = fw_device(unit->device.parent); - - /* implicit directory ID */ - directory_id = ((unit->directory - device->config_rom) * 4 - + CSR_CONFIG_ROM) & 0xffffff; - - /* explicit directory ID, overrides implicit ID if present */ - fw_csr_iterator_init(&ci, unit->directory); - while (fw_csr_iterator_next(&ci, &key, &value)) - if (key == CSR_DIRECTORY_ID) { - directory_id = value; - break; - } - /* FIXME: Make this work for multi-lun devices. */ - lun = 0; + lu = sdev->hostdata; + device = fw_device(lu->tgt->unit->device.parent); return sprintf(buf, "%08x%08x:%06x:%04x\n", device->config_rom[3], device->config_rom[4], - directory_id, lun); + lu->tgt->directory_id, lu->lun); } static DEVICE_ATTR(ieee1394_id, S_IRUGO, sbp2_sysfs_ieee1394_id_show, NULL); @@ -1219,12 +1339,17 @@ MODULE_ALIAS("sbp2"); static int __init sbp2_init(void) { + sbp2_wq = create_singlethread_workqueue(KBUILD_MODNAME); + if (!sbp2_wq) + return -ENOMEM; + return driver_register(&sbp2_driver.driver); } static void __exit sbp2_cleanup(void) { driver_unregister(&sbp2_driver.driver); + destroy_workqueue(sbp2_wq); } module_init(sbp2_init); diff -puN drivers/firewire/fw-transaction.c~git-ieee1394 drivers/firewire/fw-transaction.c --- a/drivers/firewire/fw-transaction.c~git-ieee1394 +++ a/drivers/firewire/fw-transaction.c @@ -410,7 +410,12 @@ EXPORT_SYMBOL(fw_unit_space_region); * controller. When a request is received that falls within the * specified address range, the specified callback is invoked. The * parameters passed to the callback give the details of the - * particular request + * particular request. + * + * Return value: 0 on success, non-zero otherwise. + * The start offset of the handler's address region is determined by + * fw_core_add_address_handler() and is returned in handler->offset. + * The offset is quadlet-aligned. */ int fw_core_add_address_handler(struct fw_address_handler *handler, @@ -422,14 +427,15 @@ fw_core_add_address_handler(struct fw_ad spin_lock_irqsave(&address_handler_lock, flags); - handler->offset = region->start; + handler->offset = roundup(region->start, 4); while (handler->offset + handler->length <= region->end) { other = lookup_overlapping_address_handler(&address_handler_list, handler->offset, handler->length); if (other != NULL) { - handler->offset += other->length; + handler->offset = + roundup(other->offset + other->length, 4); } else { list_add_tail(&handler->link, &address_handler_list); ret = 0; diff -puN drivers/ieee1394/eth1394.c~git-ieee1394 drivers/ieee1394/eth1394.c --- a/drivers/ieee1394/eth1394.c~git-ieee1394 +++ a/drivers/ieee1394/eth1394.c @@ -1148,8 +1148,6 @@ static int ether1394_data_handler(struct pdg->sz++; lh = find_partial_datagram(pdgl, dgl); } else { - struct partial_datagram *pd; - pd = list_entry(lh, struct partial_datagram, list); if (fragment_overlap(&pd->frag_info, fg_off, fg_len)) { @@ -1217,23 +1215,19 @@ static int ether1394_data_handler(struct priv->stats.rx_errors++; priv->stats.rx_dropped++; dev_kfree_skb_any(skb); - goto bad_proto; - } - - if (netif_rx(skb) == NET_RX_DROP) { + } else if (netif_rx(skb) == NET_RX_DROP) { priv->stats.rx_errors++; priv->stats.rx_dropped++; - goto bad_proto; + } else { + priv->stats.rx_packets++; + priv->stats.rx_bytes += skb->len; } - /* Statistics */ - priv->stats.rx_packets++; - priv->stats.rx_bytes += skb->len; + spin_unlock_irqrestore(&priv->lock, flags); bad_proto: if (netif_queue_stopped(dev)) netif_wake_queue(dev); - spin_unlock_irqrestore(&priv->lock, flags); dev->last_rx = jiffies; diff -puN drivers/ieee1394/nodemgr.c~git-ieee1394 drivers/ieee1394/nodemgr.c --- a/drivers/ieee1394/nodemgr.c~git-ieee1394 +++ a/drivers/ieee1394/nodemgr.c @@ -1712,7 +1712,8 @@ static int nodemgr_host_thread(void *__h * to make sure things settle down. */ g = get_hpsb_generation(host); for (i = 0; i < 4 ; i++) { - if (msleep_interruptible(63) || kthread_should_stop()) + msleep_interruptible(63); + if (kthread_should_stop()) goto exit; /* Now get the generation in which the node ID's we collect diff -puN drivers/ieee1394/pcilynx.c~git-ieee1394 drivers/ieee1394/pcilynx.c --- a/drivers/ieee1394/pcilynx.c~git-ieee1394 +++ a/drivers/ieee1394/pcilynx.c @@ -765,7 +765,6 @@ static int lynx_devctl(struct hpsb_host } else { struct ti_pcl pcl; u32 ack; - struct hpsb_packet *packet; PRINT(KERN_INFO, lynx->id, "cancelling async packet, that was already in PCL"); @@ -1470,8 +1469,6 @@ static int __devinit add_card(struct pci if (i2c_transfer(i2c_ad, msg, 2) < 0) { PRINT(KERN_ERR, lynx->id, "unable to read bus info block from i2c"); } else { - int i; - PRINT(KERN_INFO, lynx->id, "got bus info block from serial eeprom"); /* FIXME: probably we shoud rewrite the max_rec, max_ROM(1394a), * generation(1394a) and link_spd(1394a) field and recalculate diff -puN drivers/ieee1394/sbp2.c~git-ieee1394 drivers/ieee1394/sbp2.c --- a/drivers/ieee1394/sbp2.c~git-ieee1394 +++ a/drivers/ieee1394/sbp2.c @@ -242,6 +242,8 @@ static int sbp2_max_speed_and_size(struc static const u8 sbp2_speedto_max_payload[] = { 0x7, 0x8, 0x9, 0xA, 0xB, 0xC }; +static DEFINE_RWLOCK(sbp2_hi_logical_units_lock); + static struct hpsb_highlevel sbp2_highlevel = { .name = SBP2_DEVICE_NAME, .host_reset = sbp2_host_reset, @@ -732,6 +734,7 @@ static struct sbp2_lu *sbp2_alloc_device struct sbp2_fwhost_info *hi; struct Scsi_Host *shost = NULL; struct sbp2_lu *lu = NULL; + unsigned long flags; lu = kzalloc(sizeof(*lu), GFP_KERNEL); if (!lu) { @@ -784,7 +787,9 @@ static struct sbp2_lu *sbp2_alloc_device lu->hi = hi; + write_lock_irqsave(&sbp2_hi_logical_units_lock, flags); list_add_tail(&lu->lu_list, &hi->logical_units); + write_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags); /* Register the status FIFO address range. We could use the same FIFO * for targets at different nodes. However we need different FIFOs per @@ -828,16 +833,20 @@ static void sbp2_host_reset(struct hpsb_ { struct sbp2_fwhost_info *hi; struct sbp2_lu *lu; + unsigned long flags; hi = hpsb_get_hostinfo(&sbp2_highlevel, host); if (!hi) return; + + read_lock_irqsave(&sbp2_hi_logical_units_lock, flags); list_for_each_entry(lu, &hi->logical_units, lu_list) if (likely(atomic_read(&lu->state) != SBP2LU_STATE_IN_SHUTDOWN)) { atomic_set(&lu->state, SBP2LU_STATE_IN_RESET); scsi_block_requests(lu->shost); } + read_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags); } static int sbp2_start_device(struct sbp2_lu *lu) @@ -919,6 +928,7 @@ alloc_fail: static void sbp2_remove_device(struct sbp2_lu *lu) { struct sbp2_fwhost_info *hi; + unsigned long flags; if (!lu) return; @@ -933,7 +943,9 @@ static void sbp2_remove_device(struct sb flush_scheduled_work(); sbp2util_remove_command_orb_pool(lu, hi->host); + write_lock_irqsave(&sbp2_hi_logical_units_lock, flags); list_del(&lu->lu_list); + write_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags); if (lu->login_response) dma_free_coherent(hi->host->device.parent, @@ -1707,6 +1719,7 @@ static int sbp2_handle_status_write(stru } /* Find the unit which wrote the status. */ + read_lock_irqsave(&sbp2_hi_logical_units_lock, flags); list_for_each_entry(lu_tmp, &hi->logical_units, lu_list) { if (lu_tmp->ne->nodeid == nodeid && lu_tmp->status_fifo_addr == addr) { @@ -1714,6 +1727,8 @@ static int sbp2_handle_status_write(stru break; } } + read_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags); + if (unlikely(!lu)) { SBP2_ERR("lu is NULL - device is gone?"); return RCODE_ADDRESS_ERROR; _