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authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-05 14:54:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-05 14:54:29 -0700
commitcc998ff8811530be521f6b316f37ab7676a07938 (patch)
treea054b3bf4b2ef406bf756a6cfc9be2f9115f17ae /drivers/net/ethernet/sfc/mtd.c
parent57d730924d5cc2c3e280af16a9306587c3a511db (diff)
parent0d40f75bdab241868c0eb6f97aef9f8b3a66f7b3 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking changes from David Miller: "Noteworthy changes this time around: 1) Multicast rejoin support for team driver, from Jiri Pirko. 2) Centralize and simplify TCP RTT measurement handling in order to reduce the impact of bad RTO seeding from SYN/ACKs. Also, when both timestamps and local RTT measurements are available prefer the later because there are broken middleware devices which scramble the timestamp. From Yuchung Cheng. 3) Add TCP_NOTSENT_LOWAT socket option to limit the amount of kernel memory consumed to queue up unsend user data. From Eric Dumazet. 4) Add a "physical port ID" abstraction for network devices, from Jiri Pirko. 5) Add a "suppress" operation to influence fib_rules lookups, from Stefan Tomanek. 6) Add a networking development FAQ, from Paul Gortmaker. 7) Extend the information provided by tcp_probe and add ipv6 support, from Daniel Borkmann. 8) Use RCU locking more extensively in openvswitch data paths, from Pravin B Shelar. 9) Add SCTP support to openvswitch, from Joe Stringer. 10) Add EF10 chip support to SFC driver, from Ben Hutchings. 11) Add new SYNPROXY netfilter target, from Patrick McHardy. 12) Compute a rate approximation for sending in TCP sockets, and use this to more intelligently coalesce TSO frames. Furthermore, add a new packet scheduler which takes advantage of this estimate when available. From Eric Dumazet. 13) Allow AF_PACKET fanouts with random selection, from Daniel Borkmann. 14) Add ipv6 support to vxlan driver, from Cong Wang" Resolved conflicts as per discussion. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1218 commits) openvswitch: Fix alignment of struct sw_flow_key. netfilter: Fix build errors with xt_socket.c tcp: Add missing braces to do_tcp_setsockopt caif: Add missing braces to multiline if in cfctrl_linkup_request bnx2x: Add missing braces in bnx2x:bnx2x_link_initialize vxlan: Fix kernel panic on device delete. net: mvneta: implement ->ndo_do_ioctl() to support PHY ioctls net: mvneta: properly disable HW PHY polling and ensure adjust_link() works icplus: Use netif_running to determine device state ethernet/arc/arc_emac: Fix huge delays in large file copies tuntap: orphan frags before trying to set tx timestamp tuntap: purge socket error queue on detach qlcnic: use standard NAPI weights ipv6:introduce function to find route for redirect bnx2x: VF RSS support - VF side bnx2x: VF RSS support - PF side vxlan: Notify drivers for listening UDP port changes net: usbnet: update addr_assign_type if appropriate driver/net: enic: update enic maintainers and driver driver/net: enic: Exposing symbols for Cisco's low latency driver ...
Diffstat (limited to 'drivers/net/ethernet/sfc/mtd.c')
-rw-r--r--drivers/net/ethernet/sfc/mtd.c634
1 files changed, 36 insertions, 598 deletions
diff --git a/drivers/net/ethernet/sfc/mtd.c b/drivers/net/ethernet/sfc/mtd.c
index 08f825b71ac8..a77a8bd2dd70 100644
--- a/drivers/net/ethernet/sfc/mtd.c
+++ b/drivers/net/ethernet/sfc/mtd.c
@@ -1,194 +1,32 @@
/****************************************************************************
- * Driver for Solarflare Solarstorm network controllers and boards
+ * Driver for Solarflare network controllers and boards
* Copyright 2005-2006 Fen Systems Ltd.
- * Copyright 2006-2010 Solarflare Communications Inc.
+ * Copyright 2006-2013 Solarflare Communications Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
-#include <linux/bitops.h>
#include <linux/module.h>
#include <linux/mtd/mtd.h>
-#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/rtnetlink.h>
#include "net_driver.h"
-#include "spi.h"
#include "efx.h"
-#include "nic.h"
-#include "mcdi.h"
-#include "mcdi_pcol.h"
-
-#define EFX_SPI_VERIFY_BUF_LEN 16
-
-struct efx_mtd_partition {
- struct mtd_info mtd;
- union {
- struct {
- bool updating;
- u8 nvram_type;
- u16 fw_subtype;
- } mcdi;
- size_t offset;
- };
- const char *type_name;
- char name[IFNAMSIZ + 20];
-};
-
-struct efx_mtd_ops {
- int (*read)(struct mtd_info *mtd, loff_t start, size_t len,
- size_t *retlen, u8 *buffer);
- int (*erase)(struct mtd_info *mtd, loff_t start, size_t len);
- int (*write)(struct mtd_info *mtd, loff_t start, size_t len,
- size_t *retlen, const u8 *buffer);
- int (*sync)(struct mtd_info *mtd);
-};
-
-struct efx_mtd {
- struct list_head node;
- struct efx_nic *efx;
- const struct efx_spi_device *spi;
- const char *name;
- const struct efx_mtd_ops *ops;
- size_t n_parts;
- struct efx_mtd_partition part[0];
-};
-
-#define efx_for_each_partition(part, efx_mtd) \
- for ((part) = &(efx_mtd)->part[0]; \
- (part) != &(efx_mtd)->part[(efx_mtd)->n_parts]; \
- (part)++)
#define to_efx_mtd_partition(mtd) \
container_of(mtd, struct efx_mtd_partition, mtd)
-static int falcon_mtd_probe(struct efx_nic *efx);
-static int siena_mtd_probe(struct efx_nic *efx);
-
-/* SPI utilities */
-
-static int
-efx_spi_slow_wait(struct efx_mtd_partition *part, bool uninterruptible)
-{
- struct efx_mtd *efx_mtd = part->mtd.priv;
- const struct efx_spi_device *spi = efx_mtd->spi;
- struct efx_nic *efx = efx_mtd->efx;
- u8 status;
- int rc, i;
-
- /* Wait up to 4s for flash/EEPROM to finish a slow operation. */
- for (i = 0; i < 40; i++) {
- __set_current_state(uninterruptible ?
- TASK_UNINTERRUPTIBLE : TASK_INTERRUPTIBLE);
- schedule_timeout(HZ / 10);
- rc = falcon_spi_cmd(efx, spi, SPI_RDSR, -1, NULL,
- &status, sizeof(status));
- if (rc)
- return rc;
- if (!(status & SPI_STATUS_NRDY))
- return 0;
- if (signal_pending(current))
- return -EINTR;
- }
- pr_err("%s: timed out waiting for %s\n", part->name, efx_mtd->name);
- return -ETIMEDOUT;
-}
-
-static int
-efx_spi_unlock(struct efx_nic *efx, const struct efx_spi_device *spi)
-{
- const u8 unlock_mask = (SPI_STATUS_BP2 | SPI_STATUS_BP1 |
- SPI_STATUS_BP0);
- u8 status;
- int rc;
-
- rc = falcon_spi_cmd(efx, spi, SPI_RDSR, -1, NULL,
- &status, sizeof(status));
- if (rc)
- return rc;
-
- if (!(status & unlock_mask))
- return 0; /* already unlocked */
-
- rc = falcon_spi_cmd(efx, spi, SPI_WREN, -1, NULL, NULL, 0);
- if (rc)
- return rc;
- rc = falcon_spi_cmd(efx, spi, SPI_SST_EWSR, -1, NULL, NULL, 0);
- if (rc)
- return rc;
-
- status &= ~unlock_mask;
- rc = falcon_spi_cmd(efx, spi, SPI_WRSR, -1, &status,
- NULL, sizeof(status));
- if (rc)
- return rc;
- rc = falcon_spi_wait_write(efx, spi);
- if (rc)
- return rc;
-
- return 0;
-}
-
-static int
-efx_spi_erase(struct efx_mtd_partition *part, loff_t start, size_t len)
-{
- struct efx_mtd *efx_mtd = part->mtd.priv;
- const struct efx_spi_device *spi = efx_mtd->spi;
- struct efx_nic *efx = efx_mtd->efx;
- unsigned pos, block_len;
- u8 empty[EFX_SPI_VERIFY_BUF_LEN];
- u8 buffer[EFX_SPI_VERIFY_BUF_LEN];
- int rc;
-
- if (len != spi->erase_size)
- return -EINVAL;
-
- if (spi->erase_command == 0)
- return -EOPNOTSUPP;
-
- rc = efx_spi_unlock(efx, spi);
- if (rc)
- return rc;
- rc = falcon_spi_cmd(efx, spi, SPI_WREN, -1, NULL, NULL, 0);
- if (rc)
- return rc;
- rc = falcon_spi_cmd(efx, spi, spi->erase_command, start, NULL,
- NULL, 0);
- if (rc)
- return rc;
- rc = efx_spi_slow_wait(part, false);
-
- /* Verify the entire region has been wiped */
- memset(empty, 0xff, sizeof(empty));
- for (pos = 0; pos < len; pos += block_len) {
- block_len = min(len - pos, sizeof(buffer));
- rc = falcon_spi_read(efx, spi, start + pos, block_len,
- NULL, buffer);
- if (rc)
- return rc;
- if (memcmp(empty, buffer, block_len))
- return -EIO;
-
- /* Avoid locking up the system */
- cond_resched();
- if (signal_pending(current))
- return -EINTR;
- }
-
- return rc;
-}
-
/* MTD interface */
static int efx_mtd_erase(struct mtd_info *mtd, struct erase_info *erase)
{
- struct efx_mtd *efx_mtd = mtd->priv;
+ struct efx_nic *efx = mtd->priv;
int rc;
- rc = efx_mtd->ops->erase(mtd, erase->addr, erase->len);
+ rc = efx->type->mtd_erase(mtd, erase->addr, erase->len);
if (rc == 0) {
erase->state = MTD_ERASE_DONE;
} else {
@@ -202,13 +40,13 @@ static int efx_mtd_erase(struct mtd_info *mtd, struct erase_info *erase)
static void efx_mtd_sync(struct mtd_info *mtd)
{
struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
- struct efx_mtd *efx_mtd = mtd->priv;
+ struct efx_nic *efx = mtd->priv;
int rc;
- rc = efx_mtd->ops->sync(mtd);
+ rc = efx->type->mtd_sync(mtd);
if (rc)
pr_err("%s: %s sync failed (%d)\n",
- part->name, efx_mtd->name, rc);
+ part->name, part->dev_type_name, rc);
}
static void efx_mtd_remove_partition(struct efx_mtd_partition *part)
@@ -222,62 +60,44 @@ static void efx_mtd_remove_partition(struct efx_mtd_partition *part)
ssleep(1);
}
WARN_ON(rc);
+ list_del(&part->node);
}
-static void efx_mtd_remove_device(struct efx_mtd *efx_mtd)
-{
- struct efx_mtd_partition *part;
-
- efx_for_each_partition(part, efx_mtd)
- efx_mtd_remove_partition(part);
- list_del(&efx_mtd->node);
- kfree(efx_mtd);
-}
-
-static void efx_mtd_rename_device(struct efx_mtd *efx_mtd)
-{
- struct efx_mtd_partition *part;
-
- efx_for_each_partition(part, efx_mtd)
- if (efx_nic_rev(efx_mtd->efx) >= EFX_REV_SIENA_A0)
- snprintf(part->name, sizeof(part->name),
- "%s %s:%02x", efx_mtd->efx->name,
- part->type_name, part->mcdi.fw_subtype);
- else
- snprintf(part->name, sizeof(part->name),
- "%s %s", efx_mtd->efx->name,
- part->type_name);
-}
-
-static int efx_mtd_probe_device(struct efx_nic *efx, struct efx_mtd *efx_mtd)
+int efx_mtd_add(struct efx_nic *efx, struct efx_mtd_partition *parts,
+ size_t n_parts, size_t sizeof_part)
{
struct efx_mtd_partition *part;
+ size_t i;
- efx_mtd->efx = efx;
+ for (i = 0; i < n_parts; i++) {
+ part = (struct efx_mtd_partition *)((char *)parts +
+ i * sizeof_part);
- efx_mtd_rename_device(efx_mtd);
-
- efx_for_each_partition(part, efx_mtd) {
part->mtd.writesize = 1;
part->mtd.owner = THIS_MODULE;
- part->mtd.priv = efx_mtd;
+ part->mtd.priv = efx;
part->mtd.name = part->name;
part->mtd._erase = efx_mtd_erase;
- part->mtd._read = efx_mtd->ops->read;
- part->mtd._write = efx_mtd->ops->write;
+ part->mtd._read = efx->type->mtd_read;
+ part->mtd._write = efx->type->mtd_write;
part->mtd._sync = efx_mtd_sync;
+ efx->type->mtd_rename(part);
+
if (mtd_device_register(&part->mtd, NULL, 0))
goto fail;
+
+ /* Add to list in order - efx_mtd_remove() depends on this */
+ list_add_tail(&part->node, &efx->mtd_list);
}
- list_add(&efx_mtd->node, &efx->mtd_list);
return 0;
fail:
- while (part != &efx_mtd->part[0]) {
- --part;
+ while (i--) {
+ part = (struct efx_mtd_partition *)((char *)parts +
+ i * sizeof_part);
efx_mtd_remove_partition(part);
}
/* Failure is unlikely here, but probably means we're out of memory */
@@ -286,410 +106,28 @@ fail:
void efx_mtd_remove(struct efx_nic *efx)
{
- struct efx_mtd *efx_mtd, *next;
+ struct efx_mtd_partition *parts, *part, *next;
WARN_ON(efx_dev_registered(efx));
- list_for_each_entry_safe(efx_mtd, next, &efx->mtd_list, node)
- efx_mtd_remove_device(efx_mtd);
-}
-
-void efx_mtd_rename(struct efx_nic *efx)
-{
- struct efx_mtd *efx_mtd;
-
- ASSERT_RTNL();
-
- list_for_each_entry(efx_mtd, &efx->mtd_list, node)
- efx_mtd_rename_device(efx_mtd);
-}
-
-int efx_mtd_probe(struct efx_nic *efx)
-{
- if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
- return siena_mtd_probe(efx);
- else
- return falcon_mtd_probe(efx);
-}
-
-/* Implementation of MTD operations for Falcon */
-
-static int falcon_mtd_read(struct mtd_info *mtd, loff_t start,
- size_t len, size_t *retlen, u8 *buffer)
-{
- struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
- struct efx_mtd *efx_mtd = mtd->priv;
- const struct efx_spi_device *spi = efx_mtd->spi;
- struct efx_nic *efx = efx_mtd->efx;
- struct falcon_nic_data *nic_data = efx->nic_data;
- int rc;
-
- rc = mutex_lock_interruptible(&nic_data->spi_lock);
- if (rc)
- return rc;
- rc = falcon_spi_read(efx, spi, part->offset + start, len,
- retlen, buffer);
- mutex_unlock(&nic_data->spi_lock);
- return rc;
-}
-
-static int falcon_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len)
-{
- struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
- struct efx_mtd *efx_mtd = mtd->priv;
- struct efx_nic *efx = efx_mtd->efx;
- struct falcon_nic_data *nic_data = efx->nic_data;
- int rc;
-
- rc = mutex_lock_interruptible(&nic_data->spi_lock);
- if (rc)
- return rc;
- rc = efx_spi_erase(part, part->offset + start, len);
- mutex_unlock(&nic_data->spi_lock);
- return rc;
-}
-
-static int falcon_mtd_write(struct mtd_info *mtd, loff_t start,
- size_t len, size_t *retlen, const u8 *buffer)
-{
- struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
- struct efx_mtd *efx_mtd = mtd->priv;
- const struct efx_spi_device *spi = efx_mtd->spi;
- struct efx_nic *efx = efx_mtd->efx;
- struct falcon_nic_data *nic_data = efx->nic_data;
- int rc;
-
- rc = mutex_lock_interruptible(&nic_data->spi_lock);
- if (rc)
- return rc;
- rc = falcon_spi_write(efx, spi, part->offset + start, len,
- retlen, buffer);
- mutex_unlock(&nic_data->spi_lock);
- return rc;
-}
-
-static int falcon_mtd_sync(struct mtd_info *mtd)
-{
- struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
- struct efx_mtd *efx_mtd = mtd->priv;
- struct efx_nic *efx = efx_mtd->efx;
- struct falcon_nic_data *nic_data = efx->nic_data;
- int rc;
-
- mutex_lock(&nic_data->spi_lock);
- rc = efx_spi_slow_wait(part, true);
- mutex_unlock(&nic_data->spi_lock);
- return rc;
-}
-
-static const struct efx_mtd_ops falcon_mtd_ops = {
- .read = falcon_mtd_read,
- .erase = falcon_mtd_erase,
- .write = falcon_mtd_write,
- .sync = falcon_mtd_sync,
-};
-
-static int falcon_mtd_probe(struct efx_nic *efx)
-{
- struct falcon_nic_data *nic_data = efx->nic_data;
- struct efx_spi_device *spi;
- struct efx_mtd *efx_mtd;
- int rc = -ENODEV;
-
- ASSERT_RTNL();
-
- spi = &nic_data->spi_flash;
- if (efx_spi_present(spi) && spi->size > FALCON_FLASH_BOOTCODE_START) {
- efx_mtd = kzalloc(sizeof(*efx_mtd) + sizeof(efx_mtd->part[0]),
- GFP_KERNEL);
- if (!efx_mtd)
- return -ENOMEM;
-
- efx_mtd->spi = spi;
- efx_mtd->name = "flash";
- efx_mtd->ops = &falcon_mtd_ops;
-
- efx_mtd->n_parts = 1;
- efx_mtd->part[0].mtd.type = MTD_NORFLASH;
- efx_mtd->part[0].mtd.flags = MTD_CAP_NORFLASH;
- efx_mtd->part[0].mtd.size = spi->size - FALCON_FLASH_BOOTCODE_START;
- efx_mtd->part[0].mtd.erasesize = spi->erase_size;
- efx_mtd->part[0].offset = FALCON_FLASH_BOOTCODE_START;
- efx_mtd->part[0].type_name = "sfc_flash_bootrom";
-
- rc = efx_mtd_probe_device(efx, efx_mtd);
- if (rc) {
- kfree(efx_mtd);
- return rc;
- }
- }
-
- spi = &nic_data->spi_eeprom;
- if (efx_spi_present(spi) && spi->size > EFX_EEPROM_BOOTCONFIG_START) {
- efx_mtd = kzalloc(sizeof(*efx_mtd) + sizeof(efx_mtd->part[0]),
- GFP_KERNEL);
- if (!efx_mtd)
- return -ENOMEM;
-
- efx_mtd->spi = spi;
- efx_mtd->name = "EEPROM";
- efx_mtd->ops = &falcon_mtd_ops;
-
- efx_mtd->n_parts = 1;
- efx_mtd->part[0].mtd.type = MTD_RAM;
- efx_mtd->part[0].mtd.flags = MTD_CAP_RAM;
- efx_mtd->part[0].mtd.size =
- min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
- EFX_EEPROM_BOOTCONFIG_START;
- efx_mtd->part[0].mtd.erasesize = spi->erase_size;
- efx_mtd->part[0].offset = EFX_EEPROM_BOOTCONFIG_START;
- efx_mtd->part[0].type_name = "sfc_bootconfig";
-
- rc = efx_mtd_probe_device(efx, efx_mtd);
- if (rc) {
- kfree(efx_mtd);
- return rc;
- }
- }
-
- return rc;
-}
-
-/* Implementation of MTD operations for Siena */
-
-static int siena_mtd_read(struct mtd_info *mtd, loff_t start,
- size_t len, size_t *retlen, u8 *buffer)
-{
- struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
- struct efx_mtd *efx_mtd = mtd->priv;
- struct efx_nic *efx = efx_mtd->efx;
- loff_t offset = start;
- loff_t end = min_t(loff_t, start + len, mtd->size);
- size_t chunk;
- int rc = 0;
-
- while (offset < end) {
- chunk = min_t(size_t, end - offset, EFX_MCDI_NVRAM_LEN_MAX);
- rc = efx_mcdi_nvram_read(efx, part->mcdi.nvram_type, offset,
- buffer, chunk);
- if (rc)
- goto out;
- offset += chunk;
- buffer += chunk;
- }
-out:
- *retlen = offset - start;
- return rc;
-}
-
-static int siena_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len)
-{
- struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
- struct efx_mtd *efx_mtd = mtd->priv;
- struct efx_nic *efx = efx_mtd->efx;
- loff_t offset = start & ~((loff_t)(mtd->erasesize - 1));
- loff_t end = min_t(loff_t, start + len, mtd->size);
- size_t chunk = part->mtd.erasesize;
- int rc = 0;
-
- if (!part->mcdi.updating) {
- rc = efx_mcdi_nvram_update_start(efx, part->mcdi.nvram_type);
- if (rc)
- goto out;
- part->mcdi.updating = true;
- }
-
- /* The MCDI interface can in fact do multiple erase blocks at once;
- * but erasing may be slow, so we make multiple calls here to avoid
- * tripping the MCDI RPC timeout. */
- while (offset < end) {
- rc = efx_mcdi_nvram_erase(efx, part->mcdi.nvram_type, offset,
- chunk);
- if (rc)
- goto out;
- offset += chunk;
- }
-out:
- return rc;
-}
-
-static int siena_mtd_write(struct mtd_info *mtd, loff_t start,
- size_t len, size_t *retlen, const u8 *buffer)
-{
- struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
- struct efx_mtd *efx_mtd = mtd->priv;
- struct efx_nic *efx = efx_mtd->efx;
- loff_t offset = start;
- loff_t end = min_t(loff_t, start + len, mtd->size);
- size_t chunk;
- int rc = 0;
-
- if (!part->mcdi.updating) {
- rc = efx_mcdi_nvram_update_start(efx, part->mcdi.nvram_type);
- if (rc)
- goto out;
- part->mcdi.updating = true;
- }
-
- while (offset < end) {
- chunk = min_t(size_t, end - offset, EFX_MCDI_NVRAM_LEN_MAX);
- rc = efx_mcdi_nvram_write(efx, part->mcdi.nvram_type, offset,
- buffer, chunk);
- if (rc)
- goto out;
- offset += chunk;
- buffer += chunk;
- }
-out:
- *retlen = offset - start;
- return rc;
-}
-
-static int siena_mtd_sync(struct mtd_info *mtd)
-{
- struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
- struct efx_mtd *efx_mtd = mtd->priv;
- struct efx_nic *efx = efx_mtd->efx;
- int rc = 0;
-
- if (part->mcdi.updating) {
- part->mcdi.updating = false;
- rc = efx_mcdi_nvram_update_finish(efx, part->mcdi.nvram_type);
- }
-
- return rc;
-}
-
-static const struct efx_mtd_ops siena_mtd_ops = {
- .read = siena_mtd_read,
- .erase = siena_mtd_erase,
- .write = siena_mtd_write,
- .sync = siena_mtd_sync,
-};
-
-struct siena_nvram_type_info {
- int port;
- const char *name;
-};
+ if (list_empty(&efx->mtd_list))
+ return;
-static const struct siena_nvram_type_info siena_nvram_types[] = {
- [MC_CMD_NVRAM_TYPE_DISABLED_CALLISTO] = { 0, "sfc_dummy_phy" },
- [MC_CMD_NVRAM_TYPE_MC_FW] = { 0, "sfc_mcfw" },
- [MC_CMD_NVRAM_TYPE_MC_FW_BACKUP] = { 0, "sfc_mcfw_backup" },
- [MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT0] = { 0, "sfc_static_cfg" },
- [MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT1] = { 1, "sfc_static_cfg" },
- [MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT0] = { 0, "sfc_dynamic_cfg" },
- [MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT1] = { 1, "sfc_dynamic_cfg" },
- [MC_CMD_NVRAM_TYPE_EXP_ROM] = { 0, "sfc_exp_rom" },
- [MC_CMD_NVRAM_TYPE_EXP_ROM_CFG_PORT0] = { 0, "sfc_exp_rom_cfg" },
- [MC_CMD_NVRAM_TYPE_EXP_ROM_CFG_PORT1] = { 1, "sfc_exp_rom_cfg" },
- [MC_CMD_NVRAM_TYPE_PHY_PORT0] = { 0, "sfc_phy_fw" },
- [MC_CMD_NVRAM_TYPE_PHY_PORT1] = { 1, "sfc_phy_fw" },
- [MC_CMD_NVRAM_TYPE_FPGA] = { 0, "sfc_fpga" },
-};
+ parts = list_first_entry(&efx->mtd_list, struct efx_mtd_partition,
+ node);
-static int siena_mtd_probe_partition(struct efx_nic *efx,
- struct efx_mtd *efx_mtd,
- unsigned int part_id,
- unsigned int type)
-{
- struct efx_mtd_partition *part = &efx_mtd->part[part_id];
- const struct siena_nvram_type_info *info;
- size_t size, erase_size;
- bool protected;
- int rc;
-
- if (type >= ARRAY_SIZE(siena_nvram_types) ||
- siena_nvram_types[type].name == NULL)
- return -ENODEV;
-
- info = &siena_nvram_types[type];
-
- if (info->port != efx_port_num(efx))
- return -ENODEV;
-
- rc = efx_mcdi_nvram_info(efx, type, &size, &erase_size, &protected);
- if (rc)
- return rc;
- if (protected)
- return -ENODEV; /* hide it */
-
- part->mcdi.nvram_type = type;
- part->type_name = info->name;
-
- part->mtd.type = MTD_NORFLASH;
- part->mtd.flags = MTD_CAP_NORFLASH;
- part->mtd.size = size;
- part->mtd.erasesize = erase_size;
+ list_for_each_entry_safe(part, next, &efx->mtd_list, node)
+ efx_mtd_remove_partition(part);
- return 0;
+ kfree(parts);
}
-static int siena_mtd_get_fw_subtypes(struct efx_nic *efx,
- struct efx_mtd *efx_mtd)
+void efx_mtd_rename(struct efx_nic *efx)
{
struct efx_mtd_partition *part;
- uint16_t fw_subtype_list[
- MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_MAXNUM];
- int rc;
-
- rc = efx_mcdi_get_board_cfg(efx, NULL, fw_subtype_list, NULL);
- if (rc)
- return rc;
-
- efx_for_each_partition(part, efx_mtd)
- part->mcdi.fw_subtype = fw_subtype_list[part->mcdi.nvram_type];
-
- return 0;
-}
-
-static int siena_mtd_probe(struct efx_nic *efx)
-{
- struct efx_mtd *efx_mtd;
- int rc = -ENODEV;
- u32 nvram_types;
- unsigned int type;
ASSERT_RTNL();
- rc = efx_mcdi_nvram_types(efx, &nvram_types);
- if (rc)
- return rc;
-
- efx_mtd = kzalloc(sizeof(*efx_mtd) +
- hweight32(nvram_types) * sizeof(efx_mtd->part[0]),
- GFP_KERNEL);
- if (!efx_mtd)
- return -ENOMEM;
-
- efx_mtd->name = "Siena NVRAM manager";
-
- efx_mtd->ops = &siena_mtd_ops;
-
- type = 0;
- efx_mtd->n_parts = 0;
-
- while (nvram_types != 0) {
- if (nvram_types & 1) {
- rc = siena_mtd_probe_partition(efx, efx_mtd,
- efx_mtd->n_parts, type);
- if (rc == 0)
- efx_mtd->n_parts++;
- else if (rc != -ENODEV)
- goto fail;
- }
- type++;
- nvram_types >>= 1;
- }
-
- rc = siena_mtd_get_fw_subtypes(efx, efx_mtd);
- if (rc)
- goto fail;
-
- rc = efx_mtd_probe_device(efx, efx_mtd);
-fail:
- if (rc)
- kfree(efx_mtd);
- return rc;
+ list_for_each_entry(part, &efx->mtd_list, node)
+ efx->type->mtd_rename(part);
}
-