Re: [PATCH 1/2] libiscsi, iser: Adjust data_length to include protection information

Mike Christie
2014-06-03T16:06:23Z

On 06/01/2014 11:19 AM, Sagi Grimberg wrote:
>
> +/*
> + * data integrity helpers
> + */
> +static inline unsigned
> +iscsi_prot_len(unsigned data_len, unsigned sector_size)
> +{
> + switch (sector_size) {
> + case 512:
> + return (data_len >> 9) * 8;
> + case 1024:
> + return (data_len >> 10) * 8;
> + case 2048:
> + return (data_len >> 11) * 8;
> + case 4096:
> + return (data_len >> 12) * 8;
> + default:
> + return (data_len >> ilog2(sector_size)) * 8;
> + }
> +}
> #endif

I do not think this should not be in the iscsi code.

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