diff options
| -rw-r--r-- | drivers/scsi/aic7xxx/aic79xx_osm.c | 231 |
1 files changed, 218 insertions, 13 deletions
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 70997ca28baa..cf8e0ca830a2 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -1636,9 +1636,9 @@ ahd_send_async(struct ahd_softc *ahd, char channel, spi_period(starget) = tinfo->curr.period; spi_width(starget) = tinfo->curr.width; spi_offset(starget) = tinfo->curr.offset; - spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ; - spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ; - spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ; + spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ ? 1 : 0; + spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ ? 1 : 0; + spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ ? 1 : 0; spi_display_xfer_agreement(starget); break; } @@ -2318,6 +2318,18 @@ done: static void ahd_linux_exit(void); +static void ahd_linux_set_xferflags(struct scsi_target *starget, unsigned int ppr_options, unsigned int period) +{ + spi_qas(starget) = (ppr_options & MSG_EXT_PPR_QAS_REQ)? 1 : 0; + spi_dt(starget) = (ppr_options & MSG_EXT_PPR_DT_REQ)? 1 : 0; + spi_iu(starget) = (ppr_options & MSG_EXT_PPR_IU_REQ) ? 1 : 0; + spi_rd_strm(starget) = (ppr_options & MSG_EXT_PPR_RD_STRM) ? 1 : 0; + spi_wr_flow(starget) = (ppr_options & MSG_EXT_PPR_WR_FLOW) ? 1 : 0; + spi_pcomp_en(starget) = (ppr_options & MSG_EXT_PPR_PCOMP_EN) ? 1 : 0; + spi_rti(starget) = (ppr_options & MSG_EXT_PPR_RTI) ? 1 : 0; + spi_period(starget) = period; +} + static void ahd_linux_set_width(struct scsi_target *starget, int width) { struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); @@ -2343,9 +2355,14 @@ static void ahd_linux_set_period(struct scsi_target *starget, int period) shost->this_id, starget->id, &tstate); struct ahd_devinfo devinfo; unsigned int ppr_options = tinfo->goal.ppr_options; + unsigned int dt; unsigned long flags; unsigned long offset = tinfo->goal.offset; +#ifdef AHD_DEBUG + if ((ahd_debug & AHD_SHOW_DV) != 0) + printf("%s: set period to %d\n", ahd_name(ahd), period); +#endif if (offset == 0) offset = MAX_OFFSET; @@ -2357,6 +2374,8 @@ static void ahd_linux_set_period(struct scsi_target *starget, int period) ppr_options |= MSG_EXT_PPR_IU_REQ; } + dt = ppr_options & MSG_EXT_PPR_DT_REQ; + ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, starget->channel + 'A', ROLE_INITIATOR); @@ -2366,7 +2385,11 @@ static void ahd_linux_set_period(struct scsi_target *starget, int period) ppr_options &= MSG_EXT_PPR_QAS_REQ; } - ahd_find_syncrate(ahd, &period, &ppr_options, AHD_SYNCRATE_MAX); + ahd_find_syncrate(ahd, &period, &ppr_options, + dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); + + ahd_linux_set_xferflags(starget, ppr_options, period); + ahd_lock(ahd, &flags); ahd_set_syncrate(ahd, &devinfo, period, offset, ppr_options, AHD_TRANS_GOAL, FALSE); @@ -2385,15 +2408,24 @@ static void ahd_linux_set_offset(struct scsi_target *starget, int offset) struct ahd_devinfo devinfo; unsigned int ppr_options = 0; unsigned int period = 0; + unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; unsigned long flags; +#ifdef AHD_DEBUG + if ((ahd_debug & AHD_SHOW_DV) != 0) + printf("%s: set offset to %d\n", ahd_name(ahd), offset); +#endif + ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, starget->channel + 'A', ROLE_INITIATOR); if (offset != 0) { period = tinfo->goal.period; ppr_options = tinfo->goal.ppr_options; - ahd_find_syncrate(ahd, &period, &ppr_options, AHD_SYNCRATE_MAX); + ahd_find_syncrate(ahd, &period, &ppr_options, + dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); } + ahd_linux_set_xferflags(starget, ppr_options, period); + ahd_lock(ahd, &flags); ahd_set_syncrate(ahd, &devinfo, period, offset, ppr_options, AHD_TRANS_GOAL, FALSE); @@ -2415,17 +2447,28 @@ static void ahd_linux_set_dt(struct scsi_target *starget, int dt) unsigned int period = tinfo->goal.period; unsigned long flags; +#ifdef AHD_DEBUG + if ((ahd_debug & AHD_SHOW_DV) != 0) + printf("%s: %s DT\n", ahd_name(ahd), + dt ? "enabling" : "disabling"); +#endif if (dt) { ppr_options |= MSG_EXT_PPR_DT_REQ; if (period > 9) period = 9; /* at least 12.5ns for DT */ - } else if (period <= 9) - period = 10; /* If resetting DT, period must be >= 25ns */ - + } else { + if (period <= 9) + period = 10; /* If resetting DT, period must be >= 25ns */ + /* IU is invalid without DT set */ + ppr_options &= ~MSG_EXT_PPR_IU_REQ; + } ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, starget->channel + 'A', ROLE_INITIATOR); ahd_find_syncrate(ahd, &period, &ppr_options, dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); + + ahd_linux_set_xferflags(starget, ppr_options, period); + ahd_lock(ahd, &flags); ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, ppr_options, AHD_TRANS_GOAL, FALSE); @@ -2445,16 +2488,28 @@ static void ahd_linux_set_qas(struct scsi_target *starget, int qas) unsigned int ppr_options = tinfo->goal.ppr_options & ~MSG_EXT_PPR_QAS_REQ; unsigned int period = tinfo->goal.period; - unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; + unsigned int dt; unsigned long flags; - if (qas) - ppr_options |= MSG_EXT_PPR_QAS_REQ; +#ifdef AHD_DEBUG + if ((ahd_debug & AHD_SHOW_DV) != 0) + printf("%s: %s QAS\n", ahd_name(ahd), + qas ? "enabling" : "disabling"); +#endif + + if (qas) { + ppr_options |= MSG_EXT_PPR_QAS_REQ; + } + + dt = ppr_options & MSG_EXT_PPR_DT_REQ; ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, starget->channel + 'A', ROLE_INITIATOR); ahd_find_syncrate(ahd, &period, &ppr_options, dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); + + spi_qas(starget) = (ppr_options & MSG_EXT_PPR_QAS_REQ)? 1 : 0; + ahd_lock(ahd, &flags); ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, ppr_options, AHD_TRANS_GOAL, FALSE); @@ -2474,16 +2529,29 @@ static void ahd_linux_set_iu(struct scsi_target *starget, int iu) unsigned int ppr_options = tinfo->goal.ppr_options & ~MSG_EXT_PPR_IU_REQ; unsigned int period = tinfo->goal.period; - unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; + unsigned int dt; unsigned long flags; - if (iu) +#ifdef AHD_DEBUG + if ((ahd_debug & AHD_SHOW_DV) != 0) + printf("%s: %s IU\n", ahd_name(ahd), + iu ? "enabling" : "disabling"); +#endif + + if (iu) { ppr_options |= MSG_EXT_PPR_IU_REQ; + ppr_options |= MSG_EXT_PPR_DT_REQ; /* IU requires DT */ + } + + dt = ppr_options & MSG_EXT_PPR_DT_REQ; ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, starget->channel + 'A', ROLE_INITIATOR); ahd_find_syncrate(ahd, &period, &ppr_options, dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); + + ahd_linux_set_xferflags(starget, ppr_options, period); + ahd_lock(ahd, &flags); ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, ppr_options, AHD_TRANS_GOAL, FALSE); @@ -2506,6 +2574,12 @@ static void ahd_linux_set_rd_strm(struct scsi_target *starget, int rdstrm) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; unsigned long flags; +#ifdef AHD_DEBUG + if ((ahd_debug & AHD_SHOW_DV) != 0) + printf("%s: %s Read Streaming\n", ahd_name(ahd), + rdstrm ? "enabling" : "disabling"); +#endif + if (rdstrm) ppr_options |= MSG_EXT_PPR_RD_STRM; @@ -2513,6 +2587,131 @@ static void ahd_linux_set_rd_strm(struct scsi_target *starget, int rdstrm) starget->channel + 'A', ROLE_INITIATOR); ahd_find_syncrate(ahd, &period, &ppr_options, dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); + + spi_rd_strm(starget) = (ppr_options & MSG_EXT_PPR_RD_STRM) ? 1 : 0; + + ahd_lock(ahd, &flags); + ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, + ppr_options, AHD_TRANS_GOAL, FALSE); + ahd_unlock(ahd, &flags); +} + +static void ahd_linux_set_wr_flow(struct scsi_target *starget, int wrflow) +{ + struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); + struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); + struct ahd_tmode_tstate *tstate; + struct ahd_initiator_tinfo *tinfo + = ahd_fetch_transinfo(ahd, + starget->channel + 'A', + shost->this_id, starget->id, &tstate); + struct ahd_devinfo devinfo; + unsigned int ppr_options = tinfo->goal.ppr_options + & ~MSG_EXT_PPR_WR_FLOW; + unsigned int period = tinfo->goal.period; + unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; + unsigned long flags; + +#ifdef AHD_DEBUG + if ((ahd_debug & AHD_SHOW_DV) != 0) + printf("%s: %s Write Flow Control\n", ahd_name(ahd), + wrflow ? "enabling" : "disabling"); +#endif + + if (wrflow) + ppr_options |= MSG_EXT_PPR_WR_FLOW; + + ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, + starget->channel + 'A', ROLE_INITIATOR); + ahd_find_syncrate(ahd, &period, &ppr_options, + dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); + + spi_wr_flow(starget) = (ppr_options & MSG_EXT_PPR_WR_FLOW) ? 1 : 0; + + ahd_lock(ahd, &flags); + ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, + ppr_options, AHD_TRANS_GOAL, FALSE); + ahd_unlock(ahd, &flags); +} + +static void ahd_linux_set_rti(struct scsi_target *starget, int rti) +{ + struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); + struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); + struct ahd_tmode_tstate *tstate; + struct ahd_initiator_tinfo *tinfo + = ahd_fetch_transinfo(ahd, + starget->channel + 'A', + shost->this_id, starget->id, &tstate); + struct ahd_devinfo devinfo; + unsigned int ppr_options = tinfo->goal.ppr_options + & ~MSG_EXT_PPR_RTI; + unsigned int period = tinfo->goal.period; + unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; + unsigned long flags; + + if ((ahd->features & AHD_RTI) == 0) { +#ifdef AHD_DEBUG + if ((ahd_debug & AHD_SHOW_DV) != 0) + printf("%s: RTI not available\n", ahd_name(ahd)); +#endif + return; + } + +#ifdef AHD_DEBUG + if ((ahd_debug & AHD_SHOW_DV) != 0) + printf("%s: %s RTI\n", ahd_name(ahd), + rti ? "enabling" : "disabling"); +#endif + + if (rti) + ppr_options |= MSG_EXT_PPR_RTI; + + ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, + starget->channel + 'A', ROLE_INITIATOR); + ahd_find_syncrate(ahd, &period, &ppr_options, + dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); + + spi_rti(starget) = (ppr_options & MSG_EXT_PPR_RTI) ? 1 : 0; + + ahd_lock(ahd, &flags); + ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, + ppr_options, AHD_TRANS_GOAL, FALSE); + ahd_unlock(ahd, &flags); +} + +static void ahd_linux_set_pcomp_en(struct scsi_target *starget, int pcomp) +{ + struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); + struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); + struct ahd_tmode_tstate *tstate; + struct ahd_initiator_tinfo *tinfo + = ahd_fetch_transinfo(ahd, + starget->channel + 'A', + shost->this_id, starget->id, &tstate); + struct ahd_devinfo devinfo; + unsigned int ppr_options = tinfo->goal.ppr_options + & ~MSG_EXT_PPR_PCOMP_EN; + unsigned int period = tinfo->goal.period; + unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; + unsigned long flags; + +#ifdef AHD_DEBUG + if ((ahd_debug & AHD_SHOW_DV) != 0) + printf("%s: %s Precompensation\n", ahd_name(ahd), + pcomp ? "Enable" : "Disable"); +#endif + + if (pcomp) + ppr_options |= MSG_EXT_PPR_PCOMP_EN; + + ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, + starget->channel + 'A', ROLE_INITIATOR); + ahd_find_syncrate(ahd, &period, &ppr_options, + dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); + + spi_pcomp_en(starget) = (ppr_options & MSG_EXT_PPR_PCOMP_EN) ? 1 : 0; + ahd_lock(ahd, &flags); ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, ppr_options, AHD_TRANS_GOAL, FALSE); @@ -2534,6 +2733,12 @@ static struct spi_function_template ahd_linux_transport_functions = { .show_qas = 1, .set_rd_strm = ahd_linux_set_rd_strm, .show_rd_strm = 1, + .set_wr_flow = ahd_linux_set_wr_flow, + .show_wr_flow = 1, + .set_rti = ahd_linux_set_rti, + .show_rti = 1, + .set_pcomp_en = ahd_linux_set_pcomp_en, + .show_pcomp_en = 1, }; |