*
*-----------------------------------------------------------------------------
*
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
*
- * Where this Software is combined with software released under the terms of
- * the GNU Public License ("GPL") and the terms of the GPL would require the
- * combined work to also be released under the terms of the GPL, the terms
- * and conditions of this License will apply in addition to those of the
- * GPL with the exception of any terms or conditions of this License that
- * conflict with, or are expressly prohibited by, the GPL.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*
- * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#ifdef __FreeBSD__
-#include <dev/sym/sym_glue.h>
-#else
#include "sym_glue.h"
-#endif
-
-#ifdef SYM_OPT_HANDLE_IO_TIMEOUT
-/*
- * Optional CCB timeout handling.
- *
- * This code is useful for O/Ses that allow or expect
- * SIMs (low-level drivers) to handle SCSI IO timeouts.
- * It uses a power-of-two based algorithm of my own:)
- * that avoids scanning of lists, provided that:
- *
- * - The IO does complete in less than half the associated
- * timeout value.
- * - The greatest delay between the queuing of the IO and
- * its completion is less than
- * (1<<(SYM_CONF_TIMEOUT_ORDER_MAX-1))/2 ticks.
- *
- * For example, if tick is 1 second and the max order is 8,
- * any IO that is completed within less than 64 seconds will
- * just be put into some list at queuing and be removed
- * at completion without any additionnal overhead.
- */
-
-/*
- * Set a timeout condition on a CCB.
- */
-void sym_timeout_ccb(hcb_p np, ccb_p cp, u_int ticks)
-{
- sym_remque(&cp->tmo_linkq);
- cp->tmo_clock = np->tmo_clock + ticks;
- if (!ticks) {
- sym_insque_head(&cp->tmo_linkq, &np->tmo0_ccbq);
- }
- else {
- int i = SYM_CONF_TIMEOUT_ORDER_MAX - 1;
- while (i > 0) {
- if (ticks >= (1<<(i+1)))
- break;
- --i;
- }
- if (!(np->tmo_actq & (1<<i)))
- i += SYM_CONF_TIMEOUT_ORDER_MAX;
- sym_insque_head(&cp->tmo_linkq, &np->tmo_ccbq[i]);
- }
-}
-
-/*
- * Walk a list of CCB and handle timeout conditions.
- * Should never be called in normal situations.
- */
-static void sym_walk_ccb_tmo_list(hcb_p np, SYM_QUEHEAD *tmoq)
-{
- SYM_QUEHEAD qtmp, *qp;
- ccb_p cp;
-
- sym_que_move(tmoq, &qtmp);
- while ((qp = sym_remque_head(&qtmp)) != 0) {
- sym_insque_head(qp, &np->tmo0_ccbq);
- cp = sym_que_entry(qp, struct sym_ccb, tmo_linkq);
- if (cp->tmo_clock != np->tmo_clock &&
- cp->tmo_clock + 1 != np->tmo_clock)
- sym_timeout_ccb(np, cp, cp->tmo_clock - np->tmo_clock);
- else
- sym_abort_ccb(np, cp, 1);
- }
-}
-
-/*
- * Our clock handler called from the O/S specific side.
- */
-void sym_clock(hcb_p np)
-{
- int i, j;
- u_int tmp;
-
- tmp = np->tmo_clock;
- tmp ^= (++np->tmo_clock);
-
- for (i = 0; i < SYM_CONF_TIMEOUT_ORDER_MAX; i++, tmp >>= 1) {
- if (!(tmp & 1))
- continue;
- j = i;
- if (np->tmo_actq & (1<<i))
- j += SYM_CONF_TIMEOUT_ORDER_MAX;
-
- if (!sym_que_empty(&np->tmo_ccbq[j])) {
- sym_walk_ccb_tmo_list(np, &np->tmo_ccbq[j]);
- }
- np->tmo_actq ^= (1<<i);
- }
-}
-#endif /* SYM_OPT_HANDLE_IO_TIMEOUT */
-
#ifdef SYM_OPT_ANNOUNCE_TRANSFER_RATE
/*
* Announce transfer rate if anything changed since last announcement.
*/
-void sym_announce_transfer_rate(hcb_p np, int target)
+void sym_announce_transfer_rate(struct sym_hcb *np, int target)
{
tcb_p tp = &np->target[target];
mb10 = (f10 + period/2) / period;
}
printf_info (
- "%s:%d: %s %sSCSI %d.%d MB/s %s (%d.%d ns, offset %d)\n",
+ "%s:%d: %s %sSCSI %d.%d MB/s %s%s%s (%d.%d ns, offset %d)\n",
sym_name(np), target, scsi, __tcurr.width? "WIDE " : "",
mb10/10, mb10%10,
(__tcurr.options & PPR_OPT_DT) ? "DT" : "ST",
+ (__tcurr.options & PPR_OPT_IU) ? " IU" : "",
+ (__tcurr.options & PPR_OPT_QAS) ? " QAS" : "",
period/10, period%10, __tcurr.offset);
}
else
#undef __tprev
#undef __tcurr
#endif /* SYM_OPT_ANNOUNCE_TRANSFER_RATE */
-
-
-#ifdef SYM_OPT_SNIFF_INQUIRY
-/*
- * Update transfer settings according to user settings
- * and bits sniffed out from INQUIRY response.
- */
-void sym_update_trans_settings(hcb_p np, tcb_p tp)
-{
- memcpy(&tp->tinfo.goal, &tp->tinfo.user, sizeof(tp->tinfo.goal));
-
- if (tp->inq_version >= 4) {
- switch(tp->inq_byte56 & INQ56_CLOCKING) {
- case INQ56_ST_ONLY:
- tp->tinfo.goal.options = 0;
- break;
- case INQ56_DT_ONLY:
- case INQ56_ST_DT:
- default:
- break;
- }
- }
-
- if (!((tp->inq_byte7 & tp->inq_byte7_valid) & INQ7_WIDE16)) {
- tp->tinfo.goal.width = 0;
- tp->tinfo.goal.options = 0;
- }
-
- if (!((tp->inq_byte7 & tp->inq_byte7_valid) & INQ7_SYNC)) {
- tp->tinfo.goal.offset = 0;
- tp->tinfo.goal.options = 0;
- }
-
- if (tp->tinfo.goal.options & PPR_OPT_DT) {
- if (tp->tinfo.goal.offset > np->maxoffs_dt)
- tp->tinfo.goal.offset = np->maxoffs_dt;
- }
- else {
- if (tp->tinfo.goal.offset > np->maxoffs)
- tp->tinfo.goal.offset = np->maxoffs;
- }
-}
-
-/*
- * Snoop target capabilities from INQUIRY response.
- * We only believe device versions >= SCSI-2 that use
- * appropriate response data format (2). But it seems
- * that some CCS devices also support SYNC (?).
- */
-int
-__sym_sniff_inquiry(hcb_p np, u_char tn, u_char ln,
- u_char *inq_data, int inq_len)
-{
- tcb_p tp = &np->target[tn];
- u_char inq_version;
- u_char inq_byte7;
- u_char inq_byte56;
-
- if (!inq_data || inq_len < 2)
- return -1;
-
- /*
- * Check device type and qualifier.
- */
- if ((inq_data[0] & 0xe0) == 0x60)
- return -1;
-
- /*
- * Get SPC version.
- */
- if (inq_len <= 2)
- return -1;
- inq_version = inq_data[2] & 0x7;
-
- /*
- * Get SYNC/WIDE16 capabilities.
- */
- inq_byte7 = tp->inq_byte7;
- if (inq_version >= 2 && (inq_data[3] & 0xf) == 2) {
- if (inq_len > 7)
- inq_byte7 = inq_data[7];
- }
- else if (inq_version == 1 && (inq_data[3] & 0xf) == 1)
- inq_byte7 = INQ7_SYNC;
-
- /*
- * Get Tagged Command Queuing capability.
- */
- if (inq_byte7 & INQ7_CMDQ)
- sym_set_bit(tp->cmdq_map, ln);
- else
- sym_clr_bit(tp->cmdq_map, ln);
- inq_byte7 &= ~INQ7_CMDQ;
-
- /*
- * Get CLOCKING capability.
- */
- inq_byte56 = tp->inq_byte56;
- if (inq_version >= 4 && inq_len > 56)
- inq_byte56 = inq_data[56];
-#if 0
-printf("XXXXXX [%d] inq_version=%x inq_byte7=%x inq_byte56=%x XXXXX\n",
- inq_len, inq_version, inq_byte7, inq_byte56);
-#endif
- /*
- * Trigger a negotiation if needed.
- */
- if (tp->inq_version != inq_version ||
- tp->inq_byte7 != inq_byte7 ||
- tp->inq_byte56 != inq_byte56) {
- tp->inq_version = inq_version;
- tp->inq_byte7 = inq_byte7;
- tp->inq_byte56 = inq_byte56;
- return 1;
- }
- return 0;
-}
-#endif /* SYM_OPT_SNIFF_INQUIRY */
git://git.onelab.eu / linux-2.6.git / blobdiff