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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2011-10-291-0/+101
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (204 commits) [SCSI] qla4xxx: export address/port of connection (fix udev disk names) [SCSI] ipr: Fix BUG on adapter dump timeout [SCSI] megaraid_sas: Fix instance access in megasas_reset_timer [SCSI] hpsa: change confusing message to be more clear [SCSI] iscsi class: fix vlan configuration [SCSI] qla4xxx: fix data alignment and use nl helpers [SCSI] iscsi class: fix link local mispelling [SCSI] iscsi class: Replace iscsi_get_next_target_id with IDA [SCSI] aacraid: use lower snprintf() limit [SCSI] lpfc 8.3.27: Change driver version to 8.3.27 [SCSI] lpfc 8.3.27: T10 additions for SLI4 [SCSI] lpfc 8.3.27: Fix queue allocation failure recovery [SCSI] lpfc 8.3.27: Change algorithm for getting physical port name [SCSI] lpfc 8.3.27: Changed worst case mailbox timeout [SCSI] lpfc 8.3.27: Miscellanous logic and interface fixes [SCSI] megaraid_sas: Changelog and version update [SCSI] megaraid_sas: Add driver workaround for PERC5/1068 kdump kernel panic [SCSI] megaraid_sas: Add multiple MSI-X vector/multiple reply queue support [SCSI] megaraid_sas: Add support for MegaRAID 9360/9380 12GB/s controllers [SCSI] megaraid_sas: Clear FUSION_IN_RESET before enabling interrupts ...
| * [SCSI] fcoe,libfcoe: Move common code for fcoe_get_lesb to fcoe_transportBhanu Prakash Gollapudi2011-10-161-0/+29
| | | | | | | | | | | | | | | | | | Except for obtaining the netdev from lport, fcoe_get_lesb is the common code for the LLDs. Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Acked-by: Yi Zou <yi.zou@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * [SCSI] fcoe: Move common functions to fcoe_transport libraryBhanu Prakash Gollapudi2011-08-271-0/+72
| | | | | | | | | | | | | | | | Export fcoe_get_wwn, fcoe_validate_vport_create and fcoe_wwn_to_str so that all LLDs can use these common function. Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* | net: add skb frag size accessorsEric Dumazet2011-10-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | To ease skb->truesize sanitization, its better to be able to localize all references to skb frags size. Define accessors : skb_frag_size() to fetch frag size, and skb_frag_size_{set|add|sub}() to manipulate it. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | fcoe: convert to SKB paged frag API.Ian Campbell2011-08-261-2/+3
|/ | | | | | | | | | | Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Robert Love <robert.w.love@intel.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: devel@open-fcoe.org Cc: linux-scsi@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCSI] libfcoe: Remove unnecessary module state checksRobert Love2011-05-241-40/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | libfcoe's interface consists of create, destroy, enable, disable and create_vn2vn. These are currently module paramaters added durring the module initialization. A concern arose that the module parameters were being added with write permissions before the module had completed initialization. The following code was added to each sysfs store file. * Make sure the module has been initialized, and is not about to be * removed. Module parameter sysfs files are writable before the * module_init function is called and after module_exit. */ if (THIS_MODULE->state != MODULE_STATE_LIVE) goto out_nodev; This check was called out as unhelpful as the module can go dead at any time and therefore its state isn't a reliable thing to look at as a sign of stability and initialization completion. Also, that functional interfaces like these should be added after module initialization. This patch removes the unnecessary checks and hopes to disprove the concern about initialization ordering. Recent fcoe transport rework changes now require fcoe transports to register with libfcoe before any operation can take place. libfcoe may access some static variables but nothing that could cause a problem. Once a fcoe transport is registered, libfcoe is usable and any interface calls will be functional. Signed-off-by: Robert Love <robert.w.love@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: James Bottomley <jbottomley@parallels.com>
* [SCSI] libfcoe: fix wrong comment in fcoe_transport_detachYi Zou2011-05-011-1/+1
| | | | | | | | | | fix typo of '_attach' -> '_detach' in the comment. Reported-by: Frank Zhang <frank_1.zhang@intel.com> Signed-off-by: Yi Zou <yi.zou@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] libfcoe: fix possible buffer overflow in fcoe_transport_showYi Zou2011-05-011-2/+2
| | | | | | | | | | | possible buffer overflow in fcoe_transport_show when reaching the end of buffer and crossing PAGE_SIZE boundary. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Tomas Henzl <thenzl@redhat.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] libfcoe: clean up netdev mapping properly when the transport goes awayYi Zou2011-05-011-0/+14
| | | | | | | | | | | | | When rmmoving the underlying fcoe transport driver module by force when it's attached and in use, the correspoding netdev mapping should be cleaned up properly as well, otherwise the lookup for a given netdev for the transport would still return non NULL pointer, causing "unable to handle paging request" bug. Signed-off-by: Yi Zou <yi.zou@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] libfcoe: Remove mutex_trylock/restart_syscall checksRobert Love2011-05-011-25/+11Star
| | | | | | | | | | | | | | | This code was incorrectly ported from fcoe.c when the fcoe transport infrastructure was put into place. It was originally needed in fcoe.c when dealing with the rtnl mutex. In that code it was only needed to avoid a lockdep false positive. In libfcoe we don't deal with the rtnl mutex, we don't get the lockdep false positive and therefore we don't need these checks. Signed-off-by: Robert Love <robert.w.love@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] libfcoe: Remove stale fcoe-netdev entriesBhanu Prakash Gollapudi2011-03-011-1/+45
| | | | | | | | | | | | When L2 driver is unloaded, libfcoe_destroy tries to access the fcoe transport structure matching the netdev. However, since the netdev is unregistered by that time, it fails to do so. Hence the stale mappings exists in the fcoe-netdev list. Handle NETDEV_UREGISTER device notification mechanism to remove the stale fcoe-netdev mapping. Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] libfcoe: Move common code from fcoe to libfcoe moduleBhanu Prakash Gollapudi2011-02-121-0/+200
| | | | | | | | | | | | | | | To facilitate LLDDs to reuse the code, skb queue related functions are moved to libfcoe, so that both fcoe and bnx2fc drivers can use them. The common structures fcoe_port, fcoe_percpu_s are moved to libfcoe. fcoe_port will now have an opaque pointer that points to corresponding driver's interface structure. Also, fcoe_start_io and fcoe_fc_crc are moved to libfcoe. As part of this change, fixed fcoe_start_io to return ENOMEM if skb_clone fails. Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] libfcoe: include fcoe_transport.c into kernel libfcoe moduleYi Zou2011-02-121-0/+8
| | | | | | | | | | | | Now we can include the fcoe_transport.c to the build of the kernel libfcoe module. Move the module information to fcoe_transport, and it will have all the module parameters later for the create/destroy/enable/disable of an FCoE instance. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] libfcoe: add implementation to support fcoe transportYi Zou2011-02-121-0/+518
Add the new fcoe_transport.c file that implements basic fcoe transport interface. Eventually, the sysfs entries to create/destroy/enable/disable an FCoE instance will be coming to the fcoe transport layer, who does a look-up to find the corresponding transport provide and pass the corresponding action over to the identified provider. The fcoe.ko will become the default fcoe transport provider that can support FCoE on any given netdev interfaces, as the Open-FCoE.org's default software FCoE HBA solution. Any vendor specific FCoE HBA driver that is built on top of Open-FCoE's kernel stack of libfc & libfcoe as well as the user land tool of fcoe-utils can easily plug-in and start running FCoE on their network interfaces. The fcoe.ko will be converted to act as the default provider if no vendor specific transport provider is found, as it is always added to the very end of the list of attached transports. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>