45a3fd55ac
Merge the per-NIC-type MTD probe selection and struct efx_mtd_ops into struct efx_nic_type. Move the implementations into the appropriate source files. Several NVRAM functions are now only called from MTD operations which are now implemented in the same file (falcon.c or mcdi.c). There is no need for them to be extern, or to be defined at all if CONFIG_SFC_MTD is not enabled, so move them into the #ifdef CONFIG_SFC_MTD sections in those files. Most of the SPI-related definitions are also only used in falcon.c, so move them there. Put the remainder of spi.h into nic.h (which previously included it). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
/****************************************************************************
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* Driver for Solarflare Solarstorm network controllers and boards
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* Copyright 2005-2006 Fen Systems Ltd.
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* Copyright 2006-2010 Solarflare Communications Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation, incorporated herein by reference.
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*/
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#include <linux/module.h>
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#include <linux/mtd/mtd.h>
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#include <linux/slab.h>
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#include <linux/rtnetlink.h>
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#include "net_driver.h"
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#include "efx.h"
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#define to_efx_mtd_partition(mtd) \
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container_of(mtd, struct efx_mtd_partition, mtd)
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/* MTD interface */
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static int efx_mtd_erase(struct mtd_info *mtd, struct erase_info *erase)
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{
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struct efx_nic *efx = mtd->priv;
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int rc;
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rc = efx->type->mtd_erase(mtd, erase->addr, erase->len);
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if (rc == 0) {
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erase->state = MTD_ERASE_DONE;
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} else {
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erase->state = MTD_ERASE_FAILED;
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erase->fail_addr = MTD_FAIL_ADDR_UNKNOWN;
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}
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mtd_erase_callback(erase);
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return rc;
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}
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static void efx_mtd_sync(struct mtd_info *mtd)
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{
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struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
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struct efx_nic *efx = mtd->priv;
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int rc;
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rc = efx->type->mtd_sync(mtd);
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if (rc)
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pr_err("%s: %s sync failed (%d)\n",
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part->name, part->dev_type_name, rc);
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}
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static void efx_mtd_remove_partition(struct efx_mtd_partition *part)
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{
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int rc;
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for (;;) {
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rc = mtd_device_unregister(&part->mtd);
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if (rc != -EBUSY)
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break;
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ssleep(1);
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}
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WARN_ON(rc);
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list_del(&part->node);
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}
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int efx_mtd_add(struct efx_nic *efx, struct efx_mtd_partition *parts,
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size_t n_parts, size_t sizeof_part)
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{
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struct efx_mtd_partition *part;
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size_t i;
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for (i = 0; i < n_parts; i++) {
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part = (struct efx_mtd_partition *)((char *)parts +
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i * sizeof_part);
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part->mtd.writesize = 1;
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part->mtd.owner = THIS_MODULE;
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part->mtd.priv = efx;
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part->mtd.name = part->name;
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part->mtd._erase = efx_mtd_erase;
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part->mtd._read = efx->type->mtd_read;
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part->mtd._write = efx->type->mtd_write;
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part->mtd._sync = efx_mtd_sync;
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efx->type->mtd_rename(part);
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if (mtd_device_register(&part->mtd, NULL, 0))
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goto fail;
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/* Add to list in order - efx_mtd_remove() depends on this */
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list_add_tail(&part->node, &efx->mtd_list);
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}
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return 0;
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fail:
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while (i--) {
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part = (struct efx_mtd_partition *)((char *)parts +
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i * sizeof_part);
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efx_mtd_remove_partition(part);
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}
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/* Failure is unlikely here, but probably means we're out of memory */
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return -ENOMEM;
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}
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void efx_mtd_remove(struct efx_nic *efx)
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{
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struct efx_mtd_partition *parts, *part, *next;
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WARN_ON(efx_dev_registered(efx));
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if (list_empty(&efx->mtd_list))
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return;
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parts = list_first_entry(&efx->mtd_list, struct efx_mtd_partition,
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node);
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list_for_each_entry_safe(part, next, &efx->mtd_list, node)
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efx_mtd_remove_partition(part);
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kfree(parts);
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}
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void efx_mtd_rename(struct efx_nic *efx)
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{
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struct efx_mtd_partition *part;
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ASSERT_RTNL();
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list_for_each_entry(part, &efx->mtd_list, node)
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efx->type->mtd_rename(part);
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}
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