sata_mv Clear queue indexes on chip restart. Force in/out queue pointer indexes back to zero on any (re)init. This ensures things are in a consistent state after any chip/dev errors. Signed-off-by: Mark Lord <mlord@xxxxxxxxx> --- old/drivers/ata/sata_mv.c 2008-01-24 11:17:42.000000000 -0500 +++ new/drivers/ata/sata_mv.c 2008-01-24 11:23:05.000000000 -0500 @@ -792,7 +792,7 @@ /* * initialize request queue */ - index = (pp->req_idx & MV_MAX_Q_DEPTH_MASK) << EDMA_REQ_Q_PTR_SHIFT; + index = pp->req_idx = 0; WARN_ON(pp->crqb_dma & 0x3ff); writel((pp->crqb_dma >> 16) >> 16, port_mmio + EDMA_REQ_Q_BASE_HI_OFS); @@ -808,7 +808,7 @@ /* * initialize response queue */ - index = (pp->resp_idx & MV_MAX_Q_DEPTH_MASK) << EDMA_RSP_Q_PTR_SHIFT; + index = pp->resp_idx = 0; WARN_ON(pp->crpb_dma & 0xff); writel((pp->crpb_dma >> 16) >> 16, port_mmio + EDMA_RSP_Q_BASE_HI_OFS); - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
