diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-05 14:54:29 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-05 14:54:29 -0700 |
commit | cc998ff8811530be521f6b316f37ab7676a07938 (patch) | |
tree | a054b3bf4b2ef406bf756a6cfc9be2f9115f17ae /drivers/net/ethernet/sfc/mtd.c | |
parent | 57d730924d5cc2c3e280af16a9306587c3a511db (diff) | |
parent | 0d40f75bdab241868c0eb6f97aef9f8b3a66f7b3 (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.c | 634 |
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); } - |