From: Kashyap, Desai Date: Mon, 14 Sep 2009 05:32:48 +0000 (+0530) Subject: [SCSI] mpt2sas: Added SCSIIO, Internal and high priority memory pools to support... X-Git-Tag: v2.6.32-rc4~9^2~15 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=595bb0bd62edb28a965993d90e0fa1285560ce53;p=pandora-kernel.git [SCSI] mpt2sas: Added SCSIIO, Internal and high priority memory pools to support multiple TM 1) create a pool of high priority message frames in the region of memory between message frames and chains. The modifications are in _base_allocate_memory_pools. Also create a seperate pool of memory for internal commands located near the same region of memory. The pool of high priority message frames is restriced by the facts->HighPriorityCredit. 2) Create additional API for accessing request message frames. New function mpt2sas_base_get_smid_hpr is for highpriority request. New function mpt2sas_base_get_smid_scsiio for SCSI_IO, passing in the scsi command pointer. The mpt2sas_base_get_smid function is for requesting internal commands. 3) Added new function _base_get_cb_idx to obtain the callback index from one of the three pools of request message frames. 4) Removed wrapper functions _scsih_scsi_lookup_set and _scsih_scsi_lookup_getclear. These were removed because this handling was moved into mpt2sas_base_get_smid_scsiio and mpt2sas_base_free_smid. 5) The function mpt2sas_base_free_smid is modified so the request message frames are put back on one of the three pools of request message frames. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley --- Reading git-diff-tree failed