On Monday 03 July 2017 09:59:05 Finn Thain wrote: > Ondrej, would you please test this new series? > > Changed since v1: > - PDMA transfer residual is calculated earlier. > - End of DMA flag check is now polled (if there is any residual). > > Changed since v2: > - Bail out of transfer loops when Gated IRQ gets asserted. > - Make udelay conditional on board type. > - Drop sg_tablesize patch due to performance regression. > > Changed since v3: > - Add Ondrej's workaround for corrupt WRITE commands on DTC boards. > - Reset the 53c400 logic after any short PDMA transfer. > - Don't fail the transfer if the 53c400 logic got a reset. > > Changed since v4: > - Bail out of transfer loops when Gated IRQ gets asserted. (Again.) > - Always call wait_for_53c80_registers() at end of transfer. > - Drain chip buffers after PDMA receive is interrupted. > - Rework residual calculation. > - Add new patch to correct DMA terminology. > > Changed since v5: > - Rework residual calculation to account for on-chip buffer swap. > - Attempt to retain the disconnect/IRQ detection in the DTC436 workaround. > - Move all DTC436 workarounds to final patch. > > Changed since v6: > - Fix residual calculation for the buffer timeout case. > - Iterate after sending final 128 bytes to check for buffer timeout. > - Don't log the residual value when it is known to be zero. > > > Finn Thain (2): > g_NCR5380: Cleanup comments and whitespace > g_NCR5380: Use unambiguous terminology for PDMA send and receive > > Ondrej Zary (4): > g_NCR5380: Fix PDMA transfer size > g_NCR5380: End PDMA transfer correctly on target disconnection > g_NCR5380: Re-work PDMA loops > g_NCR5380: Two DTC436 PDMA workarounds > > drivers/scsi/g_NCR5380.c | 277 > ++++++++++++++++++++++++++--------------------- 1 file changed, 155 > insertions(+), 122 deletions(-) Everything works fine! No corruption, no hangs, rescan-scsi-bus works. Tested cards: Canon FG2-5202 (53C400 chip, MMIO) DTC-3181L (DTCT-436P chip, PIO) HP C2502 (53C400A chip, PIO) Tested devices: QUANTUM LP240S GM240S01X 4.6 IBM DORS-32160 WA0A SONY CD-ROM CDU-415 1.1g SONY CD-ROM CDU-55S 1.0t Tested-by: Ondrej Zary <linux@xxxxxxxxxxxxxxxxxxxx> -- Ondrej Zary
