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* [SCSI] st: Move buffer pointer back when data could not be written.Kai Makisara2008-07-261-1/+2
| | | | | | | | Move buffer pointer back when data could not be written. Bug found by Mike Christie. Signed-off-by: Kai Mäkisara <Kai.Makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Update version number to 8.02.01-k5.Andrew Vasquez2008-07-261-1/+1
| | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Don't hardcode fw_transfer_size for ISP2[45]xx parts.Andrew Vasquez2008-07-261-1/+1
| | | | | | | | Use the full buffer size available, as there's no reason to limit the firwmare-image load-segment size for these parts. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Verify the RISC is not in ROM code if firmware-load is disabled.Andrew Vasquez2008-07-262-0/+9
| | | | | | | | | Add an additional check to verify that the current executing firmware is in fact non-ROM code. The non-ROM Get-ID mailbox command is used for verification. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Correct overflow during dump-processing on large-memory ↵Andrew Vasquez2008-07-261-1/+1
| | | | | | | | | | ISP23xx parts. Total ram words can exceed a 16bit value on large-memory boards. Safely extend to a 32bit width. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Skip FDMI registration on ISP21xx/22xx parts.Andrew Vasquez2008-07-261-0/+6
| | | | | | | | Firmware does not have the facilities to issue management server IOCBs. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Correct rport/fcport visibility-state handling during ↵Seokmann Ju2008-07-263-4/+8
| | | | | | | | | | | | | | | | loop-resync. There were several issues here, one, during RSCN handling if a follow-on RSCN occurred (within interrupt context) the DPC thread could inadvertantly leave the fcport in a stale lost state. Secondly, scheduled rport removal is handled exclusively by the 'parent' DPC thread, so wake up the proper thread. Finally, process vport loop-resync's only when the vport has in an "active" state (ID acquired). Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Correct vport management of MBA_PORT_UPDATE.Seokmann Ju2008-07-261-4/+0
| | | | | | | | | By allowing the qla2x00_alert_all_vps() to manage per-vport recognition of the MBA. Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Correct fcport state-management during loss.Seokmann Ju2008-07-262-11/+3
| | | | | | | | | | | All fcport->state management should be done within qla2x00_mark_device_lost(), the assignment of state within qla2x00_mark_vp_devices_dead() caused associated rports to not be removed. Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Always aquire the parent's hardware_lock.Seokmann Ju2008-07-263-15/+20
| | | | | | | | | While issuing a marker, manipulating the request/response queues and modifying the outstanding command array. Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Swap enablement order of EFT and FCE.Andrew Vasquez2008-07-261-40/+40
| | | | | | | | | | | The firmware group has suggested that FCE (Fibre Channel Event) tracing be enabled prior to EFT (Extended Firmware Tracing) to maximize the capturing of data on the wire. This change has no real semantic effect on driver operation, as it's mostly a shuffling of code. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Retrieve board serial-number and description from VPD.Joe Carnuccio2008-07-265-5/+60
| | | | | | | | | | Recent ISPs have this information written at manufacturing time, so use the information. This also reduces future churn of the qla_devtbl.h file contents, as the driver can now depend on the information to be present in VPD. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Allow the user the option of disabling iIDMA.Andrew Vasquez2008-07-263-1/+10
| | | | | | | | | | | | | | iIDMA support requires the driver issue several additional fabric-managegment (FM) commands per port discovered during SNS scanning -- GFPN (Get Fabric Port Name) and GPSC (Get Port Speed Capabilities). It has been found during testing that some switches do not respond as *well* as expected to these commands (silence -- no ACC nor BS_RJT). So, to handle such conditions, allow the user the ability to indirectly disable the FM commands by disabling iIDMA with the ql2xiidmaenable module-parameter. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Cleanup NPIV related functionsSeokmann Ju2008-07-265-23/+4
| | | | | | | | | | | Removed repeated or unnecessary operations during vport creation/deletion. Signed-off-by: Shyam Sundar <shyam.sundar@qlogic.com> Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com> Signed-off-by: Ravi Anand <ravi.anand@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Add LIP count to FC-transport statistics.Harish Zunjarrao2008-07-262-1/+3
| | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Track total number of ISP aborts.Harish Zunjarrao2008-07-263-0/+19
| | | | | | | | | This parameter counts the total number of ISP aborts during driver execution. The value is exported through a DEVICE_ATTR() off the scsi_host. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Set an rport's dev_loss_tmo value in a consistent manner.Andrew Vasquez2008-07-262-19/+3
| | | | | | | | | | As there's no point in adding a fixed-fudge value (originally 5 seconds), honor the user settings only. We also remove the driver's dead-callback get_rport_dev_loss_tmo function (qla2x00_get_rport_loss_tmo()). Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Add dev_loss_tmo_callbk/terminate_rport_io callback support.Seokmann Ju2008-07-265-25/+78
| | | | | | Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Correct locking during NVRAM manipulation.Andrew Vasquez2008-07-261-3/+0
| | | | | | | | | | Commit 2c96d8d0c17978bbf5eb82314d488f46d4a51280 pushed the acquisition of hardware_lock to too fine a level, which in turn will cause problems with cond_resched()s added with 40a2e34a94c336b716f631b2952d233e1ba76e3c. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* x86_64: fix ia32 AMD syscall audit fast-pathRoland McGrath2008-07-251-3/+3
| | | | | | | | | | The new code in commit 5cbf1565f29eb57a86a305b08836613508e294d7 has a bug in the version supporting the AMD 'syscall' instruction. It clobbers the user's %ecx register value (with the %ebp value). This change fixes it. Signed-off-by: Roland McGrath <roland@redhat.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2008-07-259-608/+415
|\ | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: ipsec: ipcomp - Decompress into frags if necessary ipsec: ipcomp - Merge IPComp implementations pkt_sched: Fix locking in shutdown_scheduler_queue()
| * ipsec: ipcomp - Decompress into frags if necessaryHerbert Xu2008-07-251-6/+42
| | | | | | | | | | | | | | | | | | When decompressing extremely large packets allocating them through kmalloc is prone to failure. Therefore it's better to use page frags instead. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ipsec: ipcomp - Merge IPComp implementationsHerbert Xu2008-07-258-606/+377
| | | | | | | | | | | | | | | | | | This patch merges the IPv4/IPv6 IPComp implementations since most of the code is identical. As a result future enhancements will no longer need to be duplicated. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * pkt_sched: Fix locking in shutdown_scheduler_queue()David S. Miller2008-07-251-2/+2
| | | | | | | | | | | | | | Qdisc locks need to be held with BH disabled. Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: David S. Miller <davem@davemloft.net>
* | MFD_TC6393XB is ARM-onlyAdrian Bunk2008-07-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Compile error on other architectures: CC drivers/mfd/tc6393xb.o /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/mfd/tc6393xb.c: In function ‘tc6393xb_attach_irq’: /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/mfd/tc6393xb.c:324: error: implicit declaration of function ‘set_irq_flags’ ... Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'merge' of ↵Linus Torvalds2008-07-251-2/+2
|\ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix boot problem due to AT_BASE_PLATFORM change
| * | powerpc: Fix boot problem due to AT_BASE_PLATFORM changeNathan Lynch2008-07-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 9115d13453dee22473a1e8cacc90a8d64a9c4bc9 ("powerpc: Enable AT_BASE_PLATFORM aux vector") broke boot on 32-bit powerpc systems; we have to use PTRRELOC to initialize powerpc_base_platform this early in boot. Bug reported by Jon Smirl. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2008-07-254-5/+20
|\ \ \ | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: Wire up new system calls.
| * | | sparc: Wire up new system calls.David S. Miller2008-07-254-5/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This wires up the recently added Wire up signalfd4, eventfd2, epoll_create1, dup3, pipe2, and inotify_init1 system calls. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Merge branch 'release' of ↵Linus Torvalds2008-07-252-1/+13
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Wire up new system calls
| * | | | [IA64] Wire up new system callsTony Luck2008-07-252-1/+13
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | Six new system calls: signalfd4, eventfd2, epoll_create1, dup3, pipe2 and inotify_init1. Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | | sys_paccept definition missing __user annotationHarvey Harrison2008-07-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduced by commit aaca0bdca573f3f51ea03139f9c7289541e7bca3 ("flag parameters: paccept"): net/socket.c:1515:17: error: symbol 'sys_paccept' redeclared with different type (originally declared at include/linux/syscalls.h:413) - incompatible argument 4 (different address spaces) Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge git://git.infradead.org/embedded-2.6Linus Torvalds2008-07-255-3/+44
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/embedded-2.6: Make console charset translation optional
| * | | | Make console charset translation optionalDavid Woodhouse2008-06-045-3/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By turning off the new CONSOLE_TRANSLATIONS option and dropping the associated code and tables from the kernel, we can save about 7KiB. Taken from linux-tiny project by Tim Bird and mangled further by dwmw2. Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | | | | Merge git://git.infradead.org/~dwmw2/random-2.6Linus Torvalds2008-07-2524-109/+11
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/~dwmw2/random-2.6: remove dummy asm/kvm.h files firmware: create firmware binaries during 'make modules'.
| * | | | | remove dummy asm/kvm.h filesAdrian Bunk2008-07-2522-105/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the dummy asm/kvm.h files on architectures not (yet) supporting KVM and uses the same conditional headers installation as already used for a.out.h . Also removed are superfluous install rules in the s390 and x86 Kbuild files (they are already in Kbuild.asm). Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * | | | | firmware: create firmware binaries during 'make modules'.David Woodhouse2008-07-252-4/+7
| | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | This means that we no longer need write access to the source tree while doing 'make modules_install'. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | | | | bootmem: Move node allocation macros back to !HAVE_ARCH_BOOTMEM_NODEJohannes Weiner2008-07-251-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These got unintentionally moved, put them back as x86 provides its own versions. Signed-off-by: Johannes Weiner <hannes@saeurebad.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | signalfd: fix undefined reference to `compat_sys_signalfd4' when ↵Ingo Molnar2008-07-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | !CONFIG_SIGNALFD fix: arch/x86/ia32/built-in.o: In function `ia32_sys_call_table': (.rodata+0xa38): undefined reference to `compat_sys_signalfd4' on !CONFIG_SIGNALFD. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | mm/hugetlb.c: fix build failure with !CONFIG_SYSCTLIngo Molnar2008-07-251-11/+11
| |_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | on !CONFIG_SYSCTL on x86 with latest -git i get: mm/hugetlb.c: In function 'decrement_hugepage_resv_vma': mm/hugetlb.c:83: error: 'reserve' undeclared (first use in this function) mm/hugetlb.c:83: error: (Each undeclared identifier is reported only once mm/hugetlb.c:83: error: for each function it appears in.) Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge branch 'merge' of ↵Linus Torvalds2008-07-2549-277/+2546
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (34 commits) powerpc: Wireup new syscalls Move update_mmu_cache() declaration from tlbflush.h to pgtable.h powerpc/pseries: Remove kmalloc call in handling writes to lparcfg powerpc/pseries: Update arch vector to indicate support for CMO ibmvfc: Add support for collaborative memory overcommit ibmvscsi: driver enablement for CMO ibmveth: enable driver for CMO ibmveth: Automatically enable larger rx buffer pools for larger mtu powerpc/pseries: Verify CMO memory entitlement updates with virtual I/O powerpc/pseries: vio bus support for CMO powerpc/pseries: iommu enablement for CMO powerpc/pseries: Add CMO paging statistics powerpc/pseries: Add collaborative memory manager powerpc/pseries: Utilities to set firmware page state powerpc/pseries: Enable CMO feature during platform setup powerpc/pseries: Split retrieval of processor entitlement data into a helper routine powerpc/pseries: Add memory entitlement capabilities to /proc/ppc64/lparcfg powerpc/pseries: Split processor entitlement retrieval and gathering to helper routines powerpc/pseries: Remove extraneous error reporting for hcall failures in lparcfg powerpc: Fix compile error with binutils 2.15 ... Fixed up conflict in arch/powerpc/platforms/52xx/Kconfig manually.
| * | | | powerpc: Wireup new syscallsTony Breeds2008-07-253-1/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | signalfd4, eventfd2, epoll_create1, dup3, pipe2 and inotify_init1 Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | Move update_mmu_cache() declaration from tlbflush.h to pgtable.hBenjamin Herrenschmidt2008-07-252-11/+13
| | | | | | | | | | | | | | | | | | | | | | | | | where it belongs. This fixes some build problems on some configs Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/pseries: Remove kmalloc call in handling writes to lparcfgNathan Fontenot2008-07-251-16/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are only 4 valid name=value pairs for writes to /proc/ppc64/lparcfg. Current code allocates a buffer to copy this information in from the user. Since the longest name=value pair will easily fit into a buffer of 64 characters, simply put the buffer on the stack instead of allocating the buffer. Signed-off-by: Nathan Fotenot <nfont@austin.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/pseries: Update arch vector to indicate support for CMONathan Fontenot2008-07-251-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the architecture vector to indicate that Cooperative Memory Overcommitment is supported if CONFIG_PPC_SMLPAR is set. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | ibmvfc: Add support for collaborative memory overcommitBrian King2008-07-251-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds support to the ibmvfc driver for collaborative memory overcommit. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | ibmvscsi: driver enablement for CMORobert Jennings2008-07-252-7/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable the driver to function in a Cooperative Memory Overcommitment (CMO) environment. The following changes are made to enable the driver for CMO: * DMA mapping errors will not result in error messages if entitlement has been exceeded and resources were not available. * The driver has a get_desired_dma function defined to function in a CMO environment. It will indicate how much IO memory it would like to function. Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | ibmveth: enable driver for CMORobert Jennings2008-07-252-34/+140
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable ibmveth for Cooperative Memory Overcommitment (CMO). For this driver it means calculating a desired amount of IO memory based on the current MTU and updating this value with the bus when MTU changes occur. Because DMA mappings can fail, we have added a bounce buffer for temporary cases where the driver can not map IO memory for the buffer pool. The following changes are made to enable the driver for CMO: * DMA mapping errors will not result in error messages if entitlement has been exceeded and resources were not available. * DMA mapping errors are handled gracefully, ibmveth_replenish_buffer_pool() is corrected to check the return from dma_map_single and fail gracefully. * The driver will have a get_desired_dma function defined to function in a CMO environment. * When the MTU is changed, the driver will update the device IO entitlement Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Santiago Leon <santil@us.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | ibmveth: Automatically enable larger rx buffer pools for larger mtuSantiago Leon2008-07-251-7/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Activates larger rx buffer pools when the MTU is changed to a larger value. This patch de-activates the large rx buffer pools when the MTU changes to a smaller value. Signed-off-by: Santiago Leon <santil@us.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/pseries: Verify CMO memory entitlement updates with virtual I/ONathan Fontenot2008-07-251-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Verify memory entitlement updates can be handled by vio. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
generated by cgit (git 2.34.1) at 2025-06-06 07:35:46 +0000