Date: Mon, 16 Feb 2009 08:09:35 -0700 From: Scott Long <scottl@samsco.org> To: scsi@freebsd.org, FreeBSD Current <freebsd-current@freebsd.org>, FreeBSD Stable <freebsd-stable@freebsd.org> Subject: HEADS UP: More CAM fixes. Message-ID: <499981AF.9030204@samsco.org>
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FWI. I need lots of testing on this. Only real SCSI controllers, please, not RAID controllers (except for MPT-SCSI with integrated mirroring). So Adaptec, LSI, Symbios, Buslogic, Tekram, SME, etc, users, please try this and get back to me. The patch should apply to FreeBSD 7 as well. FreeBSD 6 is only affected by this problem when CAM_NEW_TRAN_CODE is enabled. Scott -------- Original Message -------- Subject: svn commit: r188671 - head/sys/cam Date: Mon, 16 Feb 2009 14:57:15 +0000 (UTC) From: Scott Long <scottl@FreeBSD.org> To: src-committers@FreeBSD.org, svn-src-all@FreeBSD.org, svn-src-head@FreeBSD.org Author: scottl Date: Mon Feb 16 14:57:15 2009 New Revision: 188671 URL: http://svn.freebsd.org/changeset/base/188671 Log: Fix parallel SCSI negotiation in the CAM_NEW_TRAN_CODE world order. Overzealous sanity checks were locking the sync_rate and offset values to zero, thanks to a twisty maze of recursive code. Modified: head/sys/cam/cam_xpt.c Modified: head/sys/cam/cam_xpt.c ============================================================================== --- head/sys/cam/cam_xpt.c Mon Feb 16 14:38:52 2009 (r188670) +++ head/sys/cam/cam_xpt.c Mon Feb 16 14:57:15 2009 (r188671) @@ -6679,9 +6679,7 @@ xpt_set_transfer_settings(struct ccb_tra if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 && (inq_data->flags & SID_Sync) == 0 && cts->type == CTS_TYPE_CURRENT_SETTINGS) - || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0) - || (spi->sync_offset == 0) - || (spi->sync_period == 0)) { + || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { /* Force async */ spi->sync_period = 0; spi->sync_offset = 0; @@ -6729,7 +6727,8 @@ xpt_set_transfer_settings(struct ccb_tra if (spi->bus_width == 0) spi->ppr_options = 0; - if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0) { + if ((spi->valid & CTS_SPI_VALID_DISC) + && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { /* * Can't tag queue without disconnection. */
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