From eea18fdb02be703bdb850e6154b97d559e1dca59 Mon Sep 17 00:00:00 2001
From: Warner Losh <imp@FreeBSD.org>
Date: Tue, 13 Nov 2018 23:53:24 +0000
Subject: [PATCH] Remove support for versions prior to FreeBSD 7.0 from twa(4)

This was for pre-7.0 CAM support. Neither the CAM nor the busdma
changes over the years have not been ifdef'd. The code cannot build
on 6.x anymore. Support for 6.4 ended in 2010, so remove them.
---
 sys/dev/tws/tws.c          |  2 --
 sys/dev/tws/tws_cam.c      | 11 -----------
 sys/dev/tws/tws_services.h |  7 -------
 3 files changed, 20 deletions(-)

diff --git a/sys/dev/tws/tws.c b/sys/dev/tws/tws.c
index 6b89966e703..6cb814533ac 100644
--- a/sys/dev/tws/tws.c
+++ b/sys/dev/tws/tws.c
@@ -445,9 +445,7 @@ tws_setup_intr(struct tws_softc *sc, int irqs)
         if (!(sc->intr_handle[i])) {
             if ((error = bus_setup_intr(sc->tws_dev, sc->irq_res[i],
                                     INTR_TYPE_CAM | INTR_MPSAFE,
-#if (__FreeBSD_version >= 700000)
                                     NULL, 
-#endif
                                     tws_intr, sc, &sc->intr_handle[i]))) {
                 tws_log(sc, SETUP_INTR_RES);
                 return(FAILURE);
diff --git a/sys/dev/tws/tws_cam.c b/sys/dev/tws/tws_cam.c
index f948af09281..a8d75cc8fc2 100644
--- a/sys/dev/tws/tws_cam.c
+++ b/sys/dev/tws/tws_cam.c
@@ -160,9 +160,7 @@ tws_cam_attach(struct tws_softc *sc)
     */
     sc->sim = cam_sim_alloc(tws_action, tws_poll, "tws", sc,
                       device_get_unit(sc->tws_dev), 
-#if (__FreeBSD_version >= 700000)
                       &sc->sim_lock,
-#endif
                       tws_cam_depth, 1, devq);
                       /* 1, 1, devq); */
     if (sc->sim == NULL) {
@@ -172,9 +170,7 @@ tws_cam_attach(struct tws_softc *sc)
     /* Register the bus. */
     mtx_lock(&sc->sim_lock);
     if (xpt_bus_register(sc->sim, 
-#if (__FreeBSD_version >= 700000)
                          sc->tws_dev, 
-#endif
                          0) != CAM_SUCCESS) {
         cam_sim_free(sc->sim, TRUE); /* passing true will free the devq */
         sc->sim = NULL; /* so cam_detach will not try to free it */
@@ -269,7 +265,6 @@ tws_action(struct cam_sim *sim, union ccb *ccb)
         {
             TWS_TRACE_DEBUG(sc, "get tran settings", sim, ccb);
 
-#if (__FreeBSD_version >= 700000 )
             ccb->cts.protocol = PROTO_SCSI;
             ccb->cts.protocol_version = SCSI_REV_2;
             ccb->cts.transport = XPORT_SPI;
@@ -279,10 +274,6 @@ tws_action(struct cam_sim *sim, union ccb *ccb)
             ccb->cts.xport_specific.spi.flags = CTS_SPI_FLAGS_DISC_ENB;
             ccb->cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ;
             ccb->cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB;
-#else
-            ccb->cts.valid = (CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID);
-            ccb->cts.flags &= ~(CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB);
-#endif
             ccb->ccb_h.status = CAM_REQ_CMP;
             xpt_done(ccb);
 
@@ -314,13 +305,11 @@ tws_action(struct cam_sim *sim, union ccb *ccb)
             strlcpy(ccb->cpi.sim_vid, "FreeBSD", SIM_IDLEN);
             strlcpy(ccb->cpi.hba_vid, "3ware", HBA_IDLEN);
             strlcpy(ccb->cpi.dev_name, cam_sim_name(sim), DEV_IDLEN);
-#if (__FreeBSD_version >= 700000 )
             ccb->cpi.transport = XPORT_SPI;
             ccb->cpi.transport_version = 2;
             ccb->cpi.protocol = PROTO_SCSI;
             ccb->cpi.protocol_version = SCSI_REV_2;
             ccb->cpi.maxio = TWS_MAX_IO_SIZE;
-#endif
             ccb->ccb_h.status = CAM_REQ_CMP;
             xpt_done(ccb);
 
diff --git a/sys/dev/tws/tws_services.h b/sys/dev/tws/tws_services.h
index 9fa3c379999..22d0b50207d 100644
--- a/sys/dev/tws/tws_services.h
+++ b/sys/dev/tws/tws_services.h
@@ -131,12 +131,5 @@ struct error_desc {
 
 
 /* ------------------------ */
-#if (__FreeBSD_version >= 700000)
 #include <sys/clock.h>
 #define TWS_LOCAL_TIME (time_second - utc_offset())
-#else
-#include <machine/clock.h>
-#define TWS_LOCAL_TIME (time_second - (tz_minuteswest * 60) -   \
-                  (wall_cmos_clock ? adjkerntz : 0))
-#endif
-