Author: mav
Date: Mon Oct  5 11:28:26 2015
New Revision: 288808
URL: https://svnweb.freebsd.org/changeset/base/288808

Log:
  MFC r288262: Remove concept of control device.

Modified:
  stable/10/sys/cam/ctl/ctl.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/cam/ctl/ctl.c
==============================================================================
--- stable/10/sys/cam/ctl/ctl.c Mon Oct  5 11:27:35 2015        (r288807)
+++ stable/10/sys/cam/ctl/ctl.c Mon Oct  5 11:28:26 2015        (r288808)
@@ -3821,14 +3821,8 @@ ctl_init_page_index(struct ctl_lun *lun)
        for (i = 0; i < CTL_NUM_MODE_PAGES; i++) {
 
                page_index = &lun->mode_pages.index[i];
-               /*
-                * If this is a disk-only mode page, there's no point in
-                * setting it up.  For some pages, we have to have some
-                * basic information about the disk in order to calculate the
-                * mode page data.
-                */
-               if ((lun->be_lun->lun_type != T_DIRECT)
-                && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY))
+               if (lun->be_lun->lun_type != T_DIRECT &&
+                   (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY))
                        continue;
 
                switch (page_index->page_code & SMPH_PC_MASK) {
@@ -4213,18 +4207,12 @@ ctl_init_log_page_index(struct ctl_lun *
        for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) {
 
                page_index = &lun->log_pages.index[i];
-               /*
-                * If this is a disk-only mode page, there's no point in
-                * setting it up.  For some pages, we have to have some
-                * basic information about the disk in order to calculate the
-                * mode page data.
-                */
-               if ((lun->be_lun->lun_type != T_DIRECT)
-                && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY))
+               if (lun->be_lun->lun_type != T_DIRECT &&
+                   (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY))
                        continue;
 
                if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING &&
-                    lun->backend->lun_attr == NULL)
+                   lun->backend->lun_attr == NULL)
                        continue;
 
                if (page_index->page_code != prev) {
@@ -4496,9 +4484,8 @@ ctl_alloc_lun(struct ctl_softc *ctl_soft
        /* Setup statistics gathering */
        lun->stats.device_type = be_lun->lun_type;
        lun->stats.lun_number = lun_number;
-       if (lun->stats.device_type == T_DIRECT)
-               lun->stats.blocksize = be_lun->blocksize;
-       else
+       lun->stats.blocksize = be_lun->blocksize;
+       if (be_lun->blocksize == 0)
                lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE;
        for (i = 0;i < CTL_MAX_PORTS;i++)
                lun->stats.ports[i].targ_port = i;
@@ -5901,8 +5888,7 @@ ctl_do_mode_select(union ctl_io *io)
        struct scsi_mode_page_header *page_header;
        struct ctl_page_index *page_index;
        struct ctl_scsiio *ctsio;
-       int control_dev, page_len;
-       int page_len_offset, page_len_size;
+       int page_len, page_len_offset, page_len_size;
        union ctl_modepage_info *modepage_info;
        struct ctl_lun *lun;
        int *len_left, *len_used;
@@ -5913,11 +5899,6 @@ ctl_do_mode_select(union ctl_io *io)
        page_len = 0;
        lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 
-       if (lun->be_lun->lun_type != T_DIRECT)
-               control_dev = 1;
-       else
-               control_dev = 0;
-
        modepage_info = (union ctl_modepage_info *)
                ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes;
        len_left = &modepage_info->header.len_left;
@@ -5955,8 +5936,8 @@ do_next_page:
         */
        for (i = 0; i < CTL_NUM_MODE_PAGES; i++) {
 
-               if ((control_dev != 0)
-                && (lun->mode_pages.index[i].page_flags &
+               if (lun->be_lun->lun_type != T_DIRECT &&
+                   (lun->mode_pages.index[i].page_flags &
                     CTL_PAGE_FLAG_DISK_ONLY))
                        continue;
 
@@ -6253,7 +6234,6 @@ ctl_mode_sense(struct ctl_scsiio *ctsio)
        int alloc_len, page_len, header_len, total_len;
        struct scsi_mode_block_descr *block_desc;
        struct ctl_page_index *page_index;
-       int control_dev;
 
        dbd = 0;
        llba = 0;
@@ -6263,12 +6243,6 @@ ctl_mode_sense(struct ctl_scsiio *ctsio)
        CTL_DEBUG_PRINT(("ctl_mode_sense\n"));
 
        lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
-
-       if (lun->be_lun->lun_type != T_DIRECT)
-               control_dev = 1;
-       else
-               control_dev = 0;
-
        switch (ctsio->cdb[0]) {
        case MODE_SENSE_6: {
                struct scsi_mode_sense_6 *cdb;
@@ -6341,8 +6315,8 @@ ctl_mode_sense(struct ctl_scsiio *ctsio)
                }
 
                for (i = 0; i < CTL_NUM_MODE_PAGES; i++) {
-                       if ((control_dev != 0)
-                        && (lun->mode_pages.index[i].page_flags &
+                       if (lun->be_lun->lun_type != T_DIRECT &&
+                           (lun->mode_pages.index[i].page_flags &
                             CTL_PAGE_FLAG_DISK_ONLY))
                                continue;
 
@@ -6381,8 +6355,8 @@ ctl_mode_sense(struct ctl_scsiio *ctsio)
                                continue;
 
                        /* Make sure the page is supported for this dev type */
-                       if ((control_dev != 0)
-                        && (lun->mode_pages.index[i].page_flags &
+                       if (lun->be_lun->lun_type != T_DIRECT &&
+                           (lun->mode_pages.index[i].page_flags &
                             CTL_PAGE_FLAG_DISK_ONLY))
                                continue;
 
@@ -6437,7 +6411,7 @@ ctl_mode_sense(struct ctl_scsiio *ctsio)
                header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr;
 
                header->datalen = MIN(total_len - 1, 254);
-               if (control_dev == 0) {
+               if (lun->be_lun->lun_type == T_DIRECT) {
                        header->dev_specific = 0x10; /* DPOFUA */
                        if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) ||
                            (lun->mode_pages.control_page[CTL_PAGE_CURRENT]
@@ -6460,7 +6434,7 @@ ctl_mode_sense(struct ctl_scsiio *ctsio)
 
                datalen = MIN(total_len - 2, 65533);
                scsi_ulto2b(datalen, header->datalen);
-               if (control_dev == 0) {
+               if (lun->be_lun->lun_type == T_DIRECT) {
                        header->dev_specific = 0x10; /* DPOFUA */
                        if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) ||
                            (lun->mode_pages.control_page[CTL_PAGE_CURRENT]
@@ -6485,7 +6459,7 @@ ctl_mode_sense(struct ctl_scsiio *ctsio)
         * descriptor.  Otherwise, just set it to 0.
         */
        if (dbd == 0) {
-               if (control_dev == 0)
+               if (lun->be_lun->lun_type == T_DIRECT)
                        scsi_ulto3b(lun->be_lun->blocksize,
                                    block_desc->block_len);
                else
@@ -6502,9 +6476,8 @@ ctl_mode_sense(struct ctl_scsiio *ctsio)
 
                        page_index = &lun->mode_pages.index[i];
 
-                       if ((control_dev != 0)
-                        && (page_index->page_flags &
-                           CTL_PAGE_FLAG_DISK_ONLY))
+                       if (lun->be_lun->lun_type != T_DIRECT &&
+                           (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY))
                                continue;
 
                        /*
@@ -6552,9 +6525,8 @@ ctl_mode_sense(struct ctl_scsiio *ctsio)
                                continue;
 
                        /* Make sure the page is supported for this dev type */
-                       if ((control_dev != 0)
-                        && (page_index->page_flags &
-                            CTL_PAGE_FLAG_DISK_ONLY))
+                       if (lun->be_lun->lun_type != T_DIRECT &&
+                           (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY))
                                continue;
 
                        /*
@@ -10111,23 +10083,13 @@ ctl_inquiry_std(struct ctl_scsiio *ctsio
                         inq_ptr->additional_length));
 
        inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT;
-       /* 16 bit addressing */
        if (port_type == CTL_PORT_SCSI)
                inq_ptr->spc2_flags = SPC2_SID_ADDR16;
-       /* XXX set the SID_MultiP bit here if we're actually going to
-          respond on multiple ports */
        inq_ptr->spc2_flags |= SPC2_SID_MultiP;
-
-       /* 16 bit data bus, synchronous transfers */
+       inq_ptr->flags = SID_CmdQue;
        if (port_type == CTL_PORT_SCSI)
-               inq_ptr->flags = SID_WBus16 | SID_Sync;
-       /*
-        * XXX KDM do we want to support tagged queueing on the control
-        * device at all?
-        */
-       if ((lun == NULL)
-        || (lun->be_lun->lun_type != T_PROCESSOR))
-               inq_ptr->flags |= SID_CmdQue;
+               inq_ptr->flags |= SID_WBus16 | SID_Sync;
+
        /*
         * Per SPC-3, unused bytes in ASCII strings are filled with spaces.
         * We have 8 bytes for the vendor name, and 16 bytes for the device
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