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| author | James Smart <James.Smart@Emulex.Com> | 2006-08-18 23:30:09 +0200 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-09-02 22:33:49 +0200 |
| commit | 84314fd4740ad73550c76dee4a9578979d84af48 (patch) | |
| tree | f8902dbe4134f9bab4f6886bb6c0b2a30797ceaa /drivers/scsi/Kconfig | |
| parent | [SCSI] add failure return to scsi_init_shared_tag_map() (diff) | |
| download | linux-84314fd4740ad73550c76dee4a9578979d84af48.tar.xz linux-84314fd4740ad73550c76dee4a9578979d84af48.zip | |
[SCSI] SCSI and FC Transport: add netlink support for posting of transport events
This patch formally adds support for the posting of FC events via netlink.
It is a followup to the original RFC at:
http://marc.theaimsgroup.com/?l=linux-scsi&m=114530667923464&w=2
and the initial posting at:
http://marc.theaimsgroup.com/?l=linux-scsi&m=115507374832500&w=2
The patch has been updated to optimize the send path, per the discussions
in the initial posting.
Per discussions at the Storage Summit and at OLS, we are to use netlink for
async events from transports. Also per discussions, to avoid a netlink
protocol per transport, I've create a single NETLINK_SCSITRANSPORT protocol,
which can then be used by all transports.
This patch:
- Creates new files scsi_netlink.c and scsi_netlink.h, which contains the
single and shared definitions for the SCSI Transport. It is tied into the
base SCSI subsystem intialization.
Contains a single interface routine, scsi_send_transport_event(), for a
transport to send an event (via multicast to a protocol specific group).
- Creates a new scsi_netlink_fc.h file, which contains the FC netlink event
messages
- Adds 3 new routines to the fc transport:
fc_get_event_number() - to get a FC event #
fc_host_post_event() - to send a simple FC event (32 bits of data)
fc_host_post_vendor_event() - to send a Vendor unique event, with
arbitrary amounts of data.
Note: the separation of event number allows for a LLD to send a standard
event, followed by vendor-specific data for the event.
Note: This patch assumes 2 prior fc transport patches have been installed:
http://marc.theaimsgroup.com/?l=linux-scsi&m=115555807316329&w=2
http://marc.theaimsgroup.com/?l=linux-scsi&m=115581614930261&w=2
Sorry - next time I'll do something like making these individual
patches of the same posting when I know they'll be posted closely
together.
Signed-off-by: James Smart <James.Smart@emulex.com>
Tidy up configuration not to make SCSI always select NET
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/Kconfig')
| -rw-r--r-- | drivers/scsi/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index c8c606589ea6..4d1998d23f0f 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -27,6 +27,11 @@ config SCSI However, do not compile this as a module if your root file system (the one containing the directory /) is located on a SCSI device. +config SCSI_NETLINK + tristate + default n + select NET + config SCSI_PROC_FS bool "legacy /proc/scsi/ support" depends on SCSI && PROC_FS @@ -222,6 +227,7 @@ config SCSI_SPI_ATTRS config SCSI_FC_ATTRS tristate "FiberChannel Transport Attributes" depends on SCSI + select SCSI_NETLINK help If you wish to export transport-specific information about each attached FiberChannel device to sysfs, say Y. |