RE: [PATCH] sata_fsl: add workaround for data length mismatch on freescale V2 controller

2012-09-04 Thread Xie Shaohui-B21989
u-B07263 > Subject: RE: [PATCH] sata_fsl: add workaround for data length mismatch on > freescale V2 controller > > > + /* Read command completed register */ > > + done_mask = ioread32(hcr_base + CC); > > + > > + if (host_priv->quirks & SATA_F

RE: [PATCH] sata_fsl: add workaround for data length mismatch on freescale V2 controller

2012-09-04 Thread David Laight
> + /* Read command completed register */ > + done_mask = ioread32(hcr_base + CC); > + > + if (host_priv->quirks & SATA_FSL_QUIRK_V2_ERRATA) { > + if (unlikely(hstatus & INT_ON_DATA_LENGTH_MISMATCH)) { > + for (tag = 0; tag < ATA_MAX_QUEUE; tag++) { > +

RE: [PATCH] sata_fsl: add workaround for data length mismatch on freescale V2 controller

2012-09-04 Thread Jenkins, Clive
> The freescale V2 SATA controller checks > if the received data length matches > the programmed length 'ttl', if not, > it assumes that this is an error. ... Can you tell us exactly what "The freescale V2 SATA controller" is, and what versions of what devices contain it? Thanks, Clive -- To unsu

[PATCH] sata_fsl: add workaround for data length mismatch on freescale V2 controller

2012-09-04 Thread Shaohui Xie
The freescale V2 SATA controller checks if the received data length matches the programmed length 'ttl', if not, it assumes that this is an error. In ATAPI, the 'ttl' is based on max allocation length and not the actual data transfer length, controller will raise 'DLM' (Data length Mismatch) error