1216 строки
25 KiB
C
1216 строки
25 KiB
C
/*
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* linux/drivers/mmc/card/mmc_test.c
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*
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* Copyright 2007-2008 Pierre Ossman
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*/
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#include <linux/mmc/core.h>
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#include <linux/mmc/card.h>
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#include <linux/mmc/host.h>
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#include <linux/mmc/mmc.h>
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#include <linux/slab.h>
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#include <linux/scatterlist.h>
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#define RESULT_OK 0
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#define RESULT_FAIL 1
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#define RESULT_UNSUP_HOST 2
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#define RESULT_UNSUP_CARD 3
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#define BUFFER_ORDER 2
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#define BUFFER_SIZE (PAGE_SIZE << BUFFER_ORDER)
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struct mmc_test_card {
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struct mmc_card *card;
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u8 scratch[BUFFER_SIZE];
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u8 *buffer;
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#ifdef CONFIG_HIGHMEM
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struct page *highmem;
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#endif
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};
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/*******************************************************************/
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/* General helper functions */
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/*******************************************************************/
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/*
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* Configure correct block size in card
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*/
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static int mmc_test_set_blksize(struct mmc_test_card *test, unsigned size)
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{
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struct mmc_command cmd;
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int ret;
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cmd.opcode = MMC_SET_BLOCKLEN;
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cmd.arg = size;
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cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
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ret = mmc_wait_for_cmd(test->card->host, &cmd, 0);
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if (ret)
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return ret;
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return 0;
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}
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/*
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* Fill in the mmc_request structure given a set of transfer parameters.
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*/
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static void mmc_test_prepare_mrq(struct mmc_test_card *test,
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struct mmc_request *mrq, struct scatterlist *sg, unsigned sg_len,
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unsigned dev_addr, unsigned blocks, unsigned blksz, int write)
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{
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BUG_ON(!mrq || !mrq->cmd || !mrq->data || !mrq->stop);
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if (blocks > 1) {
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mrq->cmd->opcode = write ?
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MMC_WRITE_MULTIPLE_BLOCK : MMC_READ_MULTIPLE_BLOCK;
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} else {
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mrq->cmd->opcode = write ?
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MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK;
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}
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mrq->cmd->arg = dev_addr;
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if (!mmc_card_blockaddr(test->card))
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mrq->cmd->arg <<= 9;
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mrq->cmd->flags = MMC_RSP_R1 | MMC_CMD_ADTC;
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if (blocks == 1)
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mrq->stop = NULL;
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else {
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mrq->stop->opcode = MMC_STOP_TRANSMISSION;
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mrq->stop->arg = 0;
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mrq->stop->flags = MMC_RSP_R1B | MMC_CMD_AC;
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}
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mrq->data->blksz = blksz;
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mrq->data->blocks = blocks;
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mrq->data->flags = write ? MMC_DATA_WRITE : MMC_DATA_READ;
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mrq->data->sg = sg;
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mrq->data->sg_len = sg_len;
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mmc_set_data_timeout(mrq->data, test->card);
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}
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/*
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* Wait for the card to finish the busy state
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*/
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static int mmc_test_wait_busy(struct mmc_test_card *test)
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{
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int ret, busy;
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struct mmc_command cmd;
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busy = 0;
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do {
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memset(&cmd, 0, sizeof(struct mmc_command));
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cmd.opcode = MMC_SEND_STATUS;
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cmd.arg = test->card->rca << 16;
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cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
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ret = mmc_wait_for_cmd(test->card->host, &cmd, 0);
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if (ret)
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break;
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if (!busy && !(cmd.resp[0] & R1_READY_FOR_DATA)) {
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busy = 1;
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printk(KERN_INFO "%s: Warning: Host did not "
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"wait for busy state to end.\n",
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mmc_hostname(test->card->host));
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}
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} while (!(cmd.resp[0] & R1_READY_FOR_DATA));
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return ret;
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}
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/*
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* Transfer a single sector of kernel addressable data
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*/
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static int mmc_test_buffer_transfer(struct mmc_test_card *test,
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u8 *buffer, unsigned addr, unsigned blksz, int write)
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{
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int ret;
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struct mmc_request mrq;
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struct mmc_command cmd;
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struct mmc_command stop;
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struct mmc_data data;
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struct scatterlist sg;
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memset(&mrq, 0, sizeof(struct mmc_request));
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memset(&cmd, 0, sizeof(struct mmc_command));
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memset(&data, 0, sizeof(struct mmc_data));
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memset(&stop, 0, sizeof(struct mmc_command));
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mrq.cmd = &cmd;
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mrq.data = &data;
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mrq.stop = &stop;
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sg_init_one(&sg, buffer, blksz);
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mmc_test_prepare_mrq(test, &mrq, &sg, 1, addr, 1, blksz, write);
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mmc_wait_for_req(test->card->host, &mrq);
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if (cmd.error)
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return cmd.error;
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if (data.error)
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return data.error;
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ret = mmc_test_wait_busy(test);
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if (ret)
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return ret;
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return 0;
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}
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/*******************************************************************/
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/* Test preparation and cleanup */
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/*******************************************************************/
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/*
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* Fill the first couple of sectors of the card with known data
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* so that bad reads/writes can be detected
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*/
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static int __mmc_test_prepare(struct mmc_test_card *test, int write)
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{
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int ret, i;
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ret = mmc_test_set_blksize(test, 512);
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if (ret)
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return ret;
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if (write)
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memset(test->buffer, 0xDF, 512);
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else {
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for (i = 0;i < 512;i++)
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test->buffer[i] = i;
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}
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for (i = 0;i < BUFFER_SIZE / 512;i++) {
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ret = mmc_test_buffer_transfer(test, test->buffer, i, 512, 1);
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if (ret)
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return ret;
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}
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return 0;
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}
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static int mmc_test_prepare_write(struct mmc_test_card *test)
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{
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return __mmc_test_prepare(test, 1);
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}
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static int mmc_test_prepare_read(struct mmc_test_card *test)
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{
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return __mmc_test_prepare(test, 0);
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}
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static int mmc_test_cleanup(struct mmc_test_card *test)
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{
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int ret, i;
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ret = mmc_test_set_blksize(test, 512);
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if (ret)
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return ret;
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memset(test->buffer, 0, 512);
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for (i = 0;i < BUFFER_SIZE / 512;i++) {
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ret = mmc_test_buffer_transfer(test, test->buffer, i, 512, 1);
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if (ret)
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return ret;
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}
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return 0;
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}
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/*******************************************************************/
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/* Test execution helpers */
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/*******************************************************************/
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/*
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* Modifies the mmc_request to perform the "short transfer" tests
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*/
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static void mmc_test_prepare_broken_mrq(struct mmc_test_card *test,
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struct mmc_request *mrq, int write)
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{
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BUG_ON(!mrq || !mrq->cmd || !mrq->data);
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if (mrq->data->blocks > 1) {
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mrq->cmd->opcode = write ?
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MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK;
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mrq->stop = NULL;
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} else {
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mrq->cmd->opcode = MMC_SEND_STATUS;
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mrq->cmd->arg = test->card->rca << 16;
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}
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}
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/*
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* Checks that a normal transfer didn't have any errors
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*/
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static int mmc_test_check_result(struct mmc_test_card *test,
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struct mmc_request *mrq)
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{
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int ret;
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BUG_ON(!mrq || !mrq->cmd || !mrq->data);
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ret = 0;
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if (!ret && mrq->cmd->error)
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ret = mrq->cmd->error;
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if (!ret && mrq->data->error)
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ret = mrq->data->error;
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if (!ret && mrq->stop && mrq->stop->error)
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ret = mrq->stop->error;
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if (!ret && mrq->data->bytes_xfered !=
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mrq->data->blocks * mrq->data->blksz)
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ret = RESULT_FAIL;
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if (ret == -EINVAL)
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ret = RESULT_UNSUP_HOST;
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return ret;
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}
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/*
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* Checks that a "short transfer" behaved as expected
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*/
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static int mmc_test_check_broken_result(struct mmc_test_card *test,
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struct mmc_request *mrq)
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{
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int ret;
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BUG_ON(!mrq || !mrq->cmd || !mrq->data);
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ret = 0;
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if (!ret && mrq->cmd->error)
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ret = mrq->cmd->error;
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if (!ret && mrq->data->error == 0)
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ret = RESULT_FAIL;
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if (!ret && mrq->data->error != -ETIMEDOUT)
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ret = mrq->data->error;
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if (!ret && mrq->stop && mrq->stop->error)
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ret = mrq->stop->error;
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if (mrq->data->blocks > 1) {
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if (!ret && mrq->data->bytes_xfered > mrq->data->blksz)
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ret = RESULT_FAIL;
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} else {
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if (!ret && mrq->data->bytes_xfered > 0)
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ret = RESULT_FAIL;
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}
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if (ret == -EINVAL)
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ret = RESULT_UNSUP_HOST;
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return ret;
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}
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/*
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* Tests a basic transfer with certain parameters
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*/
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static int mmc_test_simple_transfer(struct mmc_test_card *test,
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struct scatterlist *sg, unsigned sg_len, unsigned dev_addr,
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unsigned blocks, unsigned blksz, int write)
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{
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struct mmc_request mrq;
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struct mmc_command cmd;
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struct mmc_command stop;
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struct mmc_data data;
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memset(&mrq, 0, sizeof(struct mmc_request));
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memset(&cmd, 0, sizeof(struct mmc_command));
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memset(&data, 0, sizeof(struct mmc_data));
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memset(&stop, 0, sizeof(struct mmc_command));
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mrq.cmd = &cmd;
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mrq.data = &data;
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mrq.stop = &stop;
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mmc_test_prepare_mrq(test, &mrq, sg, sg_len, dev_addr,
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blocks, blksz, write);
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mmc_wait_for_req(test->card->host, &mrq);
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mmc_test_wait_busy(test);
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return mmc_test_check_result(test, &mrq);
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}
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/*
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* Tests a transfer where the card will fail completely or partly
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*/
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static int mmc_test_broken_transfer(struct mmc_test_card *test,
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unsigned blocks, unsigned blksz, int write)
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{
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struct mmc_request mrq;
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struct mmc_command cmd;
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struct mmc_command stop;
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struct mmc_data data;
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struct scatterlist sg;
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memset(&mrq, 0, sizeof(struct mmc_request));
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memset(&cmd, 0, sizeof(struct mmc_command));
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memset(&data, 0, sizeof(struct mmc_data));
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memset(&stop, 0, sizeof(struct mmc_command));
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mrq.cmd = &cmd;
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mrq.data = &data;
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mrq.stop = &stop;
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sg_init_one(&sg, test->buffer, blocks * blksz);
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mmc_test_prepare_mrq(test, &mrq, &sg, 1, 0, blocks, blksz, write);
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mmc_test_prepare_broken_mrq(test, &mrq, write);
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mmc_wait_for_req(test->card->host, &mrq);
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mmc_test_wait_busy(test);
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return mmc_test_check_broken_result(test, &mrq);
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}
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/*
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* Does a complete transfer test where data is also validated
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*
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* Note: mmc_test_prepare() must have been done before this call
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*/
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static int mmc_test_transfer(struct mmc_test_card *test,
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struct scatterlist *sg, unsigned sg_len, unsigned dev_addr,
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unsigned blocks, unsigned blksz, int write)
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{
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int ret, i;
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unsigned long flags;
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if (write) {
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for (i = 0;i < blocks * blksz;i++)
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test->scratch[i] = i;
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} else {
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memset(test->scratch, 0, BUFFER_SIZE);
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}
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local_irq_save(flags);
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sg_copy_from_buffer(sg, sg_len, test->scratch, BUFFER_SIZE);
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local_irq_restore(flags);
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ret = mmc_test_set_blksize(test, blksz);
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if (ret)
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return ret;
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ret = mmc_test_simple_transfer(test, sg, sg_len, dev_addr,
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blocks, blksz, write);
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if (ret)
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return ret;
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if (write) {
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int sectors;
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ret = mmc_test_set_blksize(test, 512);
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if (ret)
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return ret;
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sectors = (blocks * blksz + 511) / 512;
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if ((sectors * 512) == (blocks * blksz))
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sectors++;
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if ((sectors * 512) > BUFFER_SIZE)
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return -EINVAL;
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memset(test->buffer, 0, sectors * 512);
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for (i = 0;i < sectors;i++) {
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ret = mmc_test_buffer_transfer(test,
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test->buffer + i * 512,
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dev_addr + i, 512, 0);
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if (ret)
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return ret;
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}
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for (i = 0;i < blocks * blksz;i++) {
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if (test->buffer[i] != (u8)i)
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return RESULT_FAIL;
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}
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for (;i < sectors * 512;i++) {
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if (test->buffer[i] != 0xDF)
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return RESULT_FAIL;
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}
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} else {
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local_irq_save(flags);
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sg_copy_to_buffer(sg, sg_len, test->scratch, BUFFER_SIZE);
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local_irq_restore(flags);
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for (i = 0;i < blocks * blksz;i++) {
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if (test->scratch[i] != (u8)i)
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return RESULT_FAIL;
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}
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}
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return 0;
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}
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/*******************************************************************/
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/* Tests */
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/*******************************************************************/
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struct mmc_test_case {
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const char *name;
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int (*prepare)(struct mmc_test_card *);
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int (*run)(struct mmc_test_card *);
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int (*cleanup)(struct mmc_test_card *);
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};
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static int mmc_test_basic_write(struct mmc_test_card *test)
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{
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int ret;
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struct scatterlist sg;
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ret = mmc_test_set_blksize(test, 512);
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if (ret)
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return ret;
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sg_init_one(&sg, test->buffer, 512);
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ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 1);
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if (ret)
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return ret;
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return 0;
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}
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static int mmc_test_basic_read(struct mmc_test_card *test)
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{
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int ret;
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struct scatterlist sg;
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ret = mmc_test_set_blksize(test, 512);
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if (ret)
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return ret;
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sg_init_one(&sg, test->buffer, 512);
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ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 0);
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if (ret)
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return ret;
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return 0;
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}
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static int mmc_test_verify_write(struct mmc_test_card *test)
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{
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int ret;
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struct scatterlist sg;
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sg_init_one(&sg, test->buffer, 512);
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ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
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if (ret)
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return ret;
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return 0;
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}
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static int mmc_test_verify_read(struct mmc_test_card *test)
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{
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int ret;
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struct scatterlist sg;
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sg_init_one(&sg, test->buffer, 512);
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ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
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if (ret)
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return ret;
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return 0;
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}
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static int mmc_test_multi_write(struct mmc_test_card *test)
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{
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int ret;
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unsigned int size;
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struct scatterlist sg;
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if (test->card->host->max_blk_count == 1)
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return RESULT_UNSUP_HOST;
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size = PAGE_SIZE * 2;
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size = min(size, test->card->host->max_req_size);
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size = min(size, test->card->host->max_seg_size);
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size = min(size, test->card->host->max_blk_count * 512);
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if (size < 1024)
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return RESULT_UNSUP_HOST;
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sg_init_one(&sg, test->buffer, size);
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ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_multi_read(struct mmc_test_card *test)
|
|
{
|
|
int ret;
|
|
unsigned int size;
|
|
struct scatterlist sg;
|
|
|
|
if (test->card->host->max_blk_count == 1)
|
|
return RESULT_UNSUP_HOST;
|
|
|
|
size = PAGE_SIZE * 2;
|
|
size = min(size, test->card->host->max_req_size);
|
|
size = min(size, test->card->host->max_seg_size);
|
|
size = min(size, test->card->host->max_blk_count * 512);
|
|
|
|
if (size < 1024)
|
|
return RESULT_UNSUP_HOST;
|
|
|
|
sg_init_one(&sg, test->buffer, size);
|
|
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_pow2_write(struct mmc_test_card *test)
|
|
{
|
|
int ret, i;
|
|
struct scatterlist sg;
|
|
|
|
if (!test->card->csd.write_partial)
|
|
return RESULT_UNSUP_CARD;
|
|
|
|
for (i = 1; i < 512;i <<= 1) {
|
|
sg_init_one(&sg, test->buffer, i);
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_pow2_read(struct mmc_test_card *test)
|
|
{
|
|
int ret, i;
|
|
struct scatterlist sg;
|
|
|
|
if (!test->card->csd.read_partial)
|
|
return RESULT_UNSUP_CARD;
|
|
|
|
for (i = 1; i < 512;i <<= 1) {
|
|
sg_init_one(&sg, test->buffer, i);
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_weird_write(struct mmc_test_card *test)
|
|
{
|
|
int ret, i;
|
|
struct scatterlist sg;
|
|
|
|
if (!test->card->csd.write_partial)
|
|
return RESULT_UNSUP_CARD;
|
|
|
|
for (i = 3; i < 512;i += 7) {
|
|
sg_init_one(&sg, test->buffer, i);
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_weird_read(struct mmc_test_card *test)
|
|
{
|
|
int ret, i;
|
|
struct scatterlist sg;
|
|
|
|
if (!test->card->csd.read_partial)
|
|
return RESULT_UNSUP_CARD;
|
|
|
|
for (i = 3; i < 512;i += 7) {
|
|
sg_init_one(&sg, test->buffer, i);
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_align_write(struct mmc_test_card *test)
|
|
{
|
|
int ret, i;
|
|
struct scatterlist sg;
|
|
|
|
for (i = 1;i < 4;i++) {
|
|
sg_init_one(&sg, test->buffer + i, 512);
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_align_read(struct mmc_test_card *test)
|
|
{
|
|
int ret, i;
|
|
struct scatterlist sg;
|
|
|
|
for (i = 1;i < 4;i++) {
|
|
sg_init_one(&sg, test->buffer + i, 512);
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_align_multi_write(struct mmc_test_card *test)
|
|
{
|
|
int ret, i;
|
|
unsigned int size;
|
|
struct scatterlist sg;
|
|
|
|
if (test->card->host->max_blk_count == 1)
|
|
return RESULT_UNSUP_HOST;
|
|
|
|
size = PAGE_SIZE * 2;
|
|
size = min(size, test->card->host->max_req_size);
|
|
size = min(size, test->card->host->max_seg_size);
|
|
size = min(size, test->card->host->max_blk_count * 512);
|
|
|
|
if (size < 1024)
|
|
return RESULT_UNSUP_HOST;
|
|
|
|
for (i = 1;i < 4;i++) {
|
|
sg_init_one(&sg, test->buffer + i, size);
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_align_multi_read(struct mmc_test_card *test)
|
|
{
|
|
int ret, i;
|
|
unsigned int size;
|
|
struct scatterlist sg;
|
|
|
|
if (test->card->host->max_blk_count == 1)
|
|
return RESULT_UNSUP_HOST;
|
|
|
|
size = PAGE_SIZE * 2;
|
|
size = min(size, test->card->host->max_req_size);
|
|
size = min(size, test->card->host->max_seg_size);
|
|
size = min(size, test->card->host->max_blk_count * 512);
|
|
|
|
if (size < 1024)
|
|
return RESULT_UNSUP_HOST;
|
|
|
|
for (i = 1;i < 4;i++) {
|
|
sg_init_one(&sg, test->buffer + i, size);
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_xfersize_write(struct mmc_test_card *test)
|
|
{
|
|
int ret;
|
|
|
|
ret = mmc_test_set_blksize(test, 512);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = mmc_test_broken_transfer(test, 1, 512, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_xfersize_read(struct mmc_test_card *test)
|
|
{
|
|
int ret;
|
|
|
|
ret = mmc_test_set_blksize(test, 512);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = mmc_test_broken_transfer(test, 1, 512, 0);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_multi_xfersize_write(struct mmc_test_card *test)
|
|
{
|
|
int ret;
|
|
|
|
if (test->card->host->max_blk_count == 1)
|
|
return RESULT_UNSUP_HOST;
|
|
|
|
ret = mmc_test_set_blksize(test, 512);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = mmc_test_broken_transfer(test, 2, 512, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_multi_xfersize_read(struct mmc_test_card *test)
|
|
{
|
|
int ret;
|
|
|
|
if (test->card->host->max_blk_count == 1)
|
|
return RESULT_UNSUP_HOST;
|
|
|
|
ret = mmc_test_set_blksize(test, 512);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = mmc_test_broken_transfer(test, 2, 512, 0);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_HIGHMEM
|
|
|
|
static int mmc_test_write_high(struct mmc_test_card *test)
|
|
{
|
|
int ret;
|
|
struct scatterlist sg;
|
|
|
|
sg_init_table(&sg, 1);
|
|
sg_set_page(&sg, test->highmem, 512, 0);
|
|
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_read_high(struct mmc_test_card *test)
|
|
{
|
|
int ret;
|
|
struct scatterlist sg;
|
|
|
|
sg_init_table(&sg, 1);
|
|
sg_set_page(&sg, test->highmem, 512, 0);
|
|
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_multi_write_high(struct mmc_test_card *test)
|
|
{
|
|
int ret;
|
|
unsigned int size;
|
|
struct scatterlist sg;
|
|
|
|
if (test->card->host->max_blk_count == 1)
|
|
return RESULT_UNSUP_HOST;
|
|
|
|
size = PAGE_SIZE * 2;
|
|
size = min(size, test->card->host->max_req_size);
|
|
size = min(size, test->card->host->max_seg_size);
|
|
size = min(size, test->card->host->max_blk_count * 512);
|
|
|
|
if (size < 1024)
|
|
return RESULT_UNSUP_HOST;
|
|
|
|
sg_init_table(&sg, 1);
|
|
sg_set_page(&sg, test->highmem, size, 0);
|
|
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_test_multi_read_high(struct mmc_test_card *test)
|
|
{
|
|
int ret;
|
|
unsigned int size;
|
|
struct scatterlist sg;
|
|
|
|
if (test->card->host->max_blk_count == 1)
|
|
return RESULT_UNSUP_HOST;
|
|
|
|
size = PAGE_SIZE * 2;
|
|
size = min(size, test->card->host->max_req_size);
|
|
size = min(size, test->card->host->max_seg_size);
|
|
size = min(size, test->card->host->max_blk_count * 512);
|
|
|
|
if (size < 1024)
|
|
return RESULT_UNSUP_HOST;
|
|
|
|
sg_init_table(&sg, 1);
|
|
sg_set_page(&sg, test->highmem, size, 0);
|
|
|
|
ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_HIGHMEM */
|
|
|
|
static const struct mmc_test_case mmc_test_cases[] = {
|
|
{
|
|
.name = "Basic write (no data verification)",
|
|
.run = mmc_test_basic_write,
|
|
},
|
|
|
|
{
|
|
.name = "Basic read (no data verification)",
|
|
.run = mmc_test_basic_read,
|
|
},
|
|
|
|
{
|
|
.name = "Basic write (with data verification)",
|
|
.prepare = mmc_test_prepare_write,
|
|
.run = mmc_test_verify_write,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Basic read (with data verification)",
|
|
.prepare = mmc_test_prepare_read,
|
|
.run = mmc_test_verify_read,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Multi-block write",
|
|
.prepare = mmc_test_prepare_write,
|
|
.run = mmc_test_multi_write,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Multi-block read",
|
|
.prepare = mmc_test_prepare_read,
|
|
.run = mmc_test_multi_read,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Power of two block writes",
|
|
.prepare = mmc_test_prepare_write,
|
|
.run = mmc_test_pow2_write,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Power of two block reads",
|
|
.prepare = mmc_test_prepare_read,
|
|
.run = mmc_test_pow2_read,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Weird sized block writes",
|
|
.prepare = mmc_test_prepare_write,
|
|
.run = mmc_test_weird_write,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Weird sized block reads",
|
|
.prepare = mmc_test_prepare_read,
|
|
.run = mmc_test_weird_read,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Badly aligned write",
|
|
.prepare = mmc_test_prepare_write,
|
|
.run = mmc_test_align_write,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Badly aligned read",
|
|
.prepare = mmc_test_prepare_read,
|
|
.run = mmc_test_align_read,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Badly aligned multi-block write",
|
|
.prepare = mmc_test_prepare_write,
|
|
.run = mmc_test_align_multi_write,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Badly aligned multi-block read",
|
|
.prepare = mmc_test_prepare_read,
|
|
.run = mmc_test_align_multi_read,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Correct xfer_size at write (start failure)",
|
|
.run = mmc_test_xfersize_write,
|
|
},
|
|
|
|
{
|
|
.name = "Correct xfer_size at read (start failure)",
|
|
.run = mmc_test_xfersize_read,
|
|
},
|
|
|
|
{
|
|
.name = "Correct xfer_size at write (midway failure)",
|
|
.run = mmc_test_multi_xfersize_write,
|
|
},
|
|
|
|
{
|
|
.name = "Correct xfer_size at read (midway failure)",
|
|
.run = mmc_test_multi_xfersize_read,
|
|
},
|
|
|
|
#ifdef CONFIG_HIGHMEM
|
|
|
|
{
|
|
.name = "Highmem write",
|
|
.prepare = mmc_test_prepare_write,
|
|
.run = mmc_test_write_high,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Highmem read",
|
|
.prepare = mmc_test_prepare_read,
|
|
.run = mmc_test_read_high,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Multi-block highmem write",
|
|
.prepare = mmc_test_prepare_write,
|
|
.run = mmc_test_multi_write_high,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
{
|
|
.name = "Multi-block highmem read",
|
|
.prepare = mmc_test_prepare_read,
|
|
.run = mmc_test_multi_read_high,
|
|
.cleanup = mmc_test_cleanup,
|
|
},
|
|
|
|
#endif /* CONFIG_HIGHMEM */
|
|
|
|
};
|
|
|
|
static DEFINE_MUTEX(mmc_test_lock);
|
|
|
|
static void mmc_test_run(struct mmc_test_card *test, int testcase)
|
|
{
|
|
int i, ret;
|
|
|
|
printk(KERN_INFO "%s: Starting tests of card %s...\n",
|
|
mmc_hostname(test->card->host), mmc_card_id(test->card));
|
|
|
|
mmc_claim_host(test->card->host);
|
|
|
|
for (i = 0;i < ARRAY_SIZE(mmc_test_cases);i++) {
|
|
if (testcase && ((i + 1) != testcase))
|
|
continue;
|
|
|
|
printk(KERN_INFO "%s: Test case %d. %s...\n",
|
|
mmc_hostname(test->card->host), i + 1,
|
|
mmc_test_cases[i].name);
|
|
|
|
if (mmc_test_cases[i].prepare) {
|
|
ret = mmc_test_cases[i].prepare(test);
|
|
if (ret) {
|
|
printk(KERN_INFO "%s: Result: Prepare "
|
|
"stage failed! (%d)\n",
|
|
mmc_hostname(test->card->host),
|
|
ret);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
ret = mmc_test_cases[i].run(test);
|
|
switch (ret) {
|
|
case RESULT_OK:
|
|
printk(KERN_INFO "%s: Result: OK\n",
|
|
mmc_hostname(test->card->host));
|
|
break;
|
|
case RESULT_FAIL:
|
|
printk(KERN_INFO "%s: Result: FAILED\n",
|
|
mmc_hostname(test->card->host));
|
|
break;
|
|
case RESULT_UNSUP_HOST:
|
|
printk(KERN_INFO "%s: Result: UNSUPPORTED "
|
|
"(by host)\n",
|
|
mmc_hostname(test->card->host));
|
|
break;
|
|
case RESULT_UNSUP_CARD:
|
|
printk(KERN_INFO "%s: Result: UNSUPPORTED "
|
|
"(by card)\n",
|
|
mmc_hostname(test->card->host));
|
|
break;
|
|
default:
|
|
printk(KERN_INFO "%s: Result: ERROR (%d)\n",
|
|
mmc_hostname(test->card->host), ret);
|
|
}
|
|
|
|
if (mmc_test_cases[i].cleanup) {
|
|
ret = mmc_test_cases[i].cleanup(test);
|
|
if (ret) {
|
|
printk(KERN_INFO "%s: Warning: Cleanup "
|
|
"stage failed! (%d)\n",
|
|
mmc_hostname(test->card->host),
|
|
ret);
|
|
}
|
|
}
|
|
}
|
|
|
|
mmc_release_host(test->card->host);
|
|
|
|
printk(KERN_INFO "%s: Tests completed.\n",
|
|
mmc_hostname(test->card->host));
|
|
}
|
|
|
|
static ssize_t mmc_test_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
mutex_lock(&mmc_test_lock);
|
|
mutex_unlock(&mmc_test_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t mmc_test_store(struct device *dev,
|
|
struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
struct mmc_card *card;
|
|
struct mmc_test_card *test;
|
|
int testcase;
|
|
|
|
card = container_of(dev, struct mmc_card, dev);
|
|
|
|
testcase = simple_strtol(buf, NULL, 10);
|
|
|
|
test = kzalloc(sizeof(struct mmc_test_card), GFP_KERNEL);
|
|
if (!test)
|
|
return -ENOMEM;
|
|
|
|
test->card = card;
|
|
|
|
test->buffer = kzalloc(BUFFER_SIZE, GFP_KERNEL);
|
|
#ifdef CONFIG_HIGHMEM
|
|
test->highmem = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, BUFFER_ORDER);
|
|
#endif
|
|
|
|
#ifdef CONFIG_HIGHMEM
|
|
if (test->buffer && test->highmem) {
|
|
#else
|
|
if (test->buffer) {
|
|
#endif
|
|
mutex_lock(&mmc_test_lock);
|
|
mmc_test_run(test, testcase);
|
|
mutex_unlock(&mmc_test_lock);
|
|
}
|
|
|
|
#ifdef CONFIG_HIGHMEM
|
|
__free_pages(test->highmem, BUFFER_ORDER);
|
|
#endif
|
|
kfree(test->buffer);
|
|
kfree(test);
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR(test, S_IWUSR | S_IRUGO, mmc_test_show, mmc_test_store);
|
|
|
|
static int mmc_test_probe(struct mmc_card *card)
|
|
{
|
|
int ret;
|
|
|
|
if ((card->type != MMC_TYPE_MMC) && (card->type != MMC_TYPE_SD))
|
|
return -ENODEV;
|
|
|
|
ret = device_create_file(&card->dev, &dev_attr_test);
|
|
if (ret)
|
|
return ret;
|
|
|
|
dev_info(&card->dev, "Card claimed for testing.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mmc_test_remove(struct mmc_card *card)
|
|
{
|
|
device_remove_file(&card->dev, &dev_attr_test);
|
|
}
|
|
|
|
static struct mmc_driver mmc_driver = {
|
|
.drv = {
|
|
.name = "mmc_test",
|
|
},
|
|
.probe = mmc_test_probe,
|
|
.remove = mmc_test_remove,
|
|
};
|
|
|
|
static int __init mmc_test_init(void)
|
|
{
|
|
return mmc_register_driver(&mmc_driver);
|
|
}
|
|
|
|
static void __exit mmc_test_exit(void)
|
|
{
|
|
mmc_unregister_driver(&mmc_driver);
|
|
}
|
|
|
|
module_init(mmc_test_init);
|
|
module_exit(mmc_test_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("Multimedia Card (MMC) host test driver");
|
|
MODULE_AUTHOR("Pierre Ossman");
|