Hello, testing the sdhci-stm.c driver, I sent some weeks ago to the mailing list, I'm facing some performance issues. For example, when copy a file (e.g. ~10MiB) to the card, I've noticed that, in the sdhci_prepare_data, the maximum value for data->blocks is 248.
The sdhci-stm driver uses the ADMA and: max_seg_size = 65536, max_hw_segs = 128, max_phys_segs = 128, max_req_size = 524288, max_blk_size = 2048, max_blk_count = 65535. Using my arasan.c code, I've also sent to this mailing list in July, I could see that the data->blocks was bigger than 248 and the performances were better. Note that this driver used the same mmc_host parameters (max_blk_size etc.) reported above for the sdhci-stm. What am I missing? Welcome advice. Best Regards, Giuseppe -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
