sfc: Add support for SFC9000 family (2)
This integrates support for the SFC9000 family of 10G Ethernet
controllers and LAN-on-motherboard chips, starting with the SFL9021
'Siena' and SFC9020 'Bethpage'.
Credit for this code is largely due to my colleagues at Solarflare:
Guido Barzini
Steve Hodgson
Kieran Mansley
Matthew Slattery
Neil Turton
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sfc/Kconfig b/drivers/net/sfc/Kconfig
index 260aafa..a65c986 100644
--- a/drivers/net/sfc/Kconfig
+++ b/drivers/net/sfc/Kconfig
@@ -1,5 +1,5 @@
config SFC
- tristate "Solarflare Solarstorm SFC4000 support"
+ tristate "Solarflare Solarstorm SFC4000/SFC9000-family support"
depends on PCI && INET
select MDIO
select CRC32
@@ -7,15 +7,16 @@
select I2C_ALGOBIT
help
This driver supports 10-gigabit Ethernet cards based on
- the Solarflare Communications Solarstorm SFC4000 controller.
+ the Solarflare Communications Solarstorm SFC4000 and
+ SFC9000-family controllers.
To compile this driver as a module, choose M here. The module
will be called sfc.
config SFC_MTD
- bool "Solarflare Solarstorm SFC4000 flash MTD support"
+ bool "Solarflare Solarstorm SFC4000/SFC9000-family MTD support"
depends on SFC && MTD && !(SFC=y && MTD=m)
default y
help
- This exposes the on-board flash memory as an MTD device (e.g.
- /dev/mtd1). This makes it possible to upload new boot code
- to the NIC.
+ This exposes the on-board flash memory as MTD devices (e.g.
+ /dev/mtd1). This makes it possible to upload new firmware
+ to the NIC.
diff --git a/drivers/net/sfc/Makefile b/drivers/net/sfc/Makefile
index 223106b..1047b19 100644
--- a/drivers/net/sfc/Makefile
+++ b/drivers/net/sfc/Makefile
@@ -1,6 +1,7 @@
-sfc-y += efx.o nic.o falcon.o tx.o rx.o falcon_gmac.o \
- falcon_xmac.o selftest.o ethtool.o qt202x_phy.o \
- mdio_10g.o tenxpress.o falcon_boards.o
+sfc-y += efx.o nic.o falcon.o siena.o tx.o rx.o \
+ falcon_gmac.o falcon_xmac.o mcdi_mac.o \
+ selftest.o ethtool.o qt202x_phy.o mdio_10g.o \
+ tenxpress.o falcon_boards.o mcdi.o mcdi_phy.o
sfc-$(CONFIG_SFC_MTD) += mtd.o
obj-$(CONFIG_SFC) += sfc.o
diff --git a/drivers/net/sfc/bitfield.h b/drivers/net/sfc/bitfield.h
index 6ad909b..bb5de4f 100644
--- a/drivers/net/sfc/bitfield.h
+++ b/drivers/net/sfc/bitfield.h
@@ -37,6 +37,8 @@
#define EFX_DWORD_2_WIDTH 32
#define EFX_DWORD_3_LBN 96
#define EFX_DWORD_3_WIDTH 32
+#define EFX_QWORD_0_LBN 0
+#define EFX_QWORD_0_WIDTH 64
/* Specified attribute (e.g. LBN) of the specified field */
#define EFX_VAL(field, attribute) field ## _ ## attribute
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 97a6ebd..4b5c786 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -25,6 +25,8 @@
#include "mdio_10g.h"
#include "nic.h"
+#include "mcdi.h"
+
/**************************************************************************
*
* Type name strings
@@ -84,6 +86,7 @@
[RESET_TYPE_RX_DESC_FETCH] = "RX_DESC_FETCH",
[RESET_TYPE_TX_DESC_FETCH] = "TX_DESC_FETCH",
[RESET_TYPE_TX_SKIP] = "TX_SKIP",
+ [RESET_TYPE_MC_FAILURE] = "MC_FAILURE",
};
#define EFX_MAX_MTU (9 * 1024)
@@ -1191,6 +1194,15 @@
efx_nic_enable_interrupts(efx);
+ /* Switch to event based MCDI completions after enabling interrupts.
+ * If a reset has been scheduled, then we need to stay in polled mode.
+ * Rather than serialising efx_mcdi_mode_event() [which sleeps] and
+ * reset_pending [modified from an atomic context], we instead guarantee
+ * that efx_mcdi_mode_poll() isn't reverted erroneously */
+ efx_mcdi_mode_event(efx);
+ if (efx->reset_pending != RESET_TYPE_NONE)
+ efx_mcdi_mode_poll(efx);
+
/* Start the hardware monitor if there is one. Otherwise (we're link
* event driven), we have to poll the PHY because after an event queue
* flush, we could have a missed a link state change */
@@ -1242,6 +1254,9 @@
efx->type->stop_stats(efx);
+ /* Switch to MCDI polling on Siena before disabling interrupts */
+ efx_mcdi_mode_poll(efx);
+
/* Disable interrupts and wait for ISR to complete */
efx_nic_disable_interrupts(efx);
if (efx->legacy_irq)
@@ -1445,6 +1460,8 @@
return -EIO;
if (efx->phy_mode & PHY_MODE_SPECIAL)
return -EBUSY;
+ if (efx_mcdi_poll_reboot(efx) && efx_reset(efx, RESET_TYPE_ALL))
+ return -EIO;
/* Notify the kernel of the link state polled during driver load,
* before the monitor starts running */
@@ -1895,6 +1912,7 @@
case RESET_TYPE_TX_SKIP:
method = RESET_TYPE_INVISIBLE;
break;
+ case RESET_TYPE_MC_FAILURE:
default:
method = RESET_TYPE_ALL;
break;
@@ -1908,6 +1926,10 @@
efx->reset_pending = method;
+ /* efx_process_channel() will no longer read events once a
+ * reset is scheduled. So switch back to poll'd MCDI completions. */
+ efx_mcdi_mode_poll(efx);
+
queue_work(reset_workqueue, &efx->reset_work);
}
@@ -1923,6 +1945,10 @@
.driver_data = (unsigned long) &falcon_a1_nic_type},
{PCI_DEVICE(EFX_VENDID_SFC, FALCON_B_P_DEVID),
.driver_data = (unsigned long) &falcon_b0_nic_type},
+ {PCI_DEVICE(EFX_VENDID_SFC, BETHPAGE_A_P_DEVID),
+ .driver_data = (unsigned long) &siena_a0_nic_type},
+ {PCI_DEVICE(EFX_VENDID_SFC, SIENA_A_P_DEVID),
+ .driver_data = (unsigned long) &siena_a0_nic_type},
{0} /* end of list */
};
diff --git a/drivers/net/sfc/efx.h b/drivers/net/sfc/efx.h
index fa40c7b..b4470da 100644
--- a/drivers/net/sfc/efx.h
+++ b/drivers/net/sfc/efx.h
@@ -18,6 +18,8 @@
#define FALCON_A_P_DEVID 0x0703
#define FALCON_A_S_DEVID 0x6703
#define FALCON_B_P_DEVID 0x0710
+#define BETHPAGE_A_P_DEVID 0x0803
+#define SIENA_A_P_DEVID 0x0813
/* Solarstorm controllers use BAR 0 for I/O space and BAR 2(&3) for memory */
#define EFX_MEM_BAR 2
diff --git a/drivers/net/sfc/enum.h b/drivers/net/sfc/enum.h
index 7a9e79a..b1f7a40 100644
--- a/drivers/net/sfc/enum.h
+++ b/drivers/net/sfc/enum.h
@@ -144,6 +144,7 @@
* @RESET_TYPE_RX_DESC_FETCH: pcie error during rx descriptor fetch
* @RESET_TYPE_TX_DESC_FETCH: pcie error during tx descriptor fetch
* @RESET_TYPE_TX_SKIP: hardware completed empty tx descriptors
+ * @RESET_TYPE_MC_FAILURE: MC reboot/assertion
*/
enum reset_type {
RESET_TYPE_NONE = -1,
@@ -158,6 +159,7 @@
RESET_TYPE_RX_DESC_FETCH,
RESET_TYPE_TX_DESC_FETCH,
RESET_TYPE_TX_SKIP,
+ RESET_TYPE_MC_FAILURE,
RESET_TYPE_MAX,
};
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index 012ee31..5492b63 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -236,6 +236,9 @@
strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
+ if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
+ siena_print_fwver(efx, info->fw_version,
+ sizeof(info->fw_version));
strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
}
diff --git a/drivers/net/sfc/mac.h b/drivers/net/sfc/mac.h
index d2af50f..c733863 100644
--- a/drivers/net/sfc/mac.h
+++ b/drivers/net/sfc/mac.h
@@ -15,6 +15,9 @@
extern struct efx_mac_operations falcon_gmac_operations;
extern struct efx_mac_operations falcon_xmac_operations;
+extern struct efx_mac_operations efx_mcdi_mac_operations;
extern void falcon_reconfigure_xmac_core(struct efx_nic *efx);
+extern int efx_mcdi_mac_stats(struct efx_nic *efx, dma_addr_t dma_addr,
+ u32 dma_len, int enable, int clear);
#endif
diff --git a/drivers/net/sfc/mtd.c b/drivers/net/sfc/mtd.c
index 65a22f1..ef561f8 100644
--- a/drivers/net/sfc/mtd.c
+++ b/drivers/net/sfc/mtd.c
@@ -8,6 +8,7 @@
* 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>
@@ -18,12 +19,22 @@
#include "spi.h"
#include "efx.h"
#include "nic.h"
+#include "mcdi.h"
+#include "mcdi_pcol.h"
#define EFX_SPI_VERIFY_BUF_LEN 16
+#define EFX_MCDI_CHUNK_LEN 128
struct efx_mtd_partition {
struct mtd_info mtd;
- size_t offset;
+ union {
+ struct {
+ bool updating;
+ u8 nvram_type;
+ u16 fw_subtype;
+ } mcdi;
+ size_t offset;
+ };
const char *type_name;
char name[IFNAMSIZ + 20];
};
@@ -56,6 +67,7 @@
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 */
@@ -223,9 +235,14 @@
struct efx_mtd_partition *part;
efx_for_each_partition(part, efx_mtd)
- snprintf(part->name, sizeof(part->name),
- "%s %s", efx_mtd->efx->name,
- part->type_name);
+ 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)
@@ -285,7 +302,10 @@
int efx_mtd_probe(struct efx_nic *efx)
{
- return falcon_mtd_probe(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 */
@@ -393,3 +413,240 @@
kfree(efx_mtd);
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_CHUNK_LEN);
+ 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 = 1;
+ }
+
+ /* 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 = 1;
+ }
+
+ while (offset < end) {
+ chunk = min_t(size_t, end - offset, EFX_MCDI_CHUNK_LEN);
+ 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 = 0;
+ rc = efx_mcdi_nvram_update_finish(efx, part->mcdi.nvram_type);
+ }
+
+ return rc;
+}
+
+static 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;
+};
+
+static 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" },
+};
+
+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];
+ struct siena_nvram_type_info *info;
+ size_t size, erase_size;
+ bool protected;
+ int rc;
+
+ if (type >= ARRAY_SIZE(siena_nvram_types))
+ 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;
+
+ return 0;
+}
+
+static int siena_mtd_get_fw_subtypes(struct efx_nic *efx,
+ struct efx_mtd *efx_mtd)
+{
+ struct efx_mtd_partition *part;
+ uint16_t fw_subtype_list[MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_LEN /
+ sizeof(uint16_t)];
+ int rc;
+
+ rc = efx_mcdi_get_board_cfg(efx, NULL, fw_subtype_list);
+ 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;
+}
+
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 96d3f00..ec13203 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -706,6 +706,7 @@
* @phy_op: PHY interface
* @phy_data: PHY private data (including PHY-specific stats)
* @mdio: PHY MDIO interface
+ * @mdio_bus: PHY MDIO bus ID (only used by Siena)
* @phy_mode: PHY operating mode. Serialised by @mac_lock.
* @xmac_poll_required: XMAC link state needs polling
* @link_advertising: Autonegotiation advertising flags
@@ -756,6 +757,7 @@
struct efx_buffer irq_status;
volatile signed int last_irq_cpu;
+ unsigned long irq_zero_count;
struct efx_spi_device *spi_flash;
struct efx_spi_device *spi_eeprom;
@@ -766,7 +768,7 @@
unsigned n_rx_nodesc_drop_cnt;
- struct falcon_nic_data *nic_data;
+ void *nic_data;
struct mutex mac_lock;
struct work_struct mac_work;
@@ -792,6 +794,7 @@
struct efx_phy_operations *phy_op;
void *phy_data;
struct mdio_if_info mdio;
+ unsigned int mdio_bus;
enum efx_phy_mode phy_mode;
bool xmac_poll_required;
@@ -824,6 +827,11 @@
return efx_dev_registered(efx) ? efx->name : "";
}
+static inline unsigned int efx_port_num(struct efx_nic *efx)
+{
+ return PCI_FUNC(efx->pci_dev->devfn);
+}
+
/**
* struct efx_nic_type - Efx device type definition
* @probe: Probe the controller
diff --git a/drivers/net/sfc/nic.c b/drivers/net/sfc/nic.c
index 55dbd79..5ac4b1a 100644
--- a/drivers/net/sfc/nic.c
+++ b/drivers/net/sfc/nic.c
@@ -997,6 +997,9 @@
case FSE_AZ_EV_CODE_DRIVER_EV:
efx_handle_driver_event(channel, &event);
break;
+ case FSE_CZ_EV_CODE_MCDI_EV:
+ efx_mcdi_process_event(channel, &event);
+ break;
default:
EFX_ERR(channel->efx, "channel %d unknown event type %d"
" (data " EFX_QWORD_FMT ")\n", channel->channel,
@@ -1025,13 +1028,21 @@
void efx_nic_init_eventq(struct efx_channel *channel)
{
- efx_oword_t evq_ptr;
+ efx_oword_t reg;
struct efx_nic *efx = channel->efx;
EFX_LOG(efx, "channel %d event queue in special buffers %d-%d\n",
channel->channel, channel->eventq.index,
channel->eventq.index + channel->eventq.entries - 1);
+ if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0) {
+ EFX_POPULATE_OWORD_3(reg,
+ FRF_CZ_TIMER_Q_EN, 1,
+ FRF_CZ_HOST_NOTIFY_MODE, 0,
+ FRF_CZ_TIMER_MODE, FFE_CZ_TIMER_MODE_DIS);
+ efx_writeo_table(efx, ®, FR_BZ_TIMER_TBL, channel->channel);
+ }
+
/* Pin event queue buffer */
efx_init_special_buffer(efx, &channel->eventq);
@@ -1039,11 +1050,11 @@
memset(channel->eventq.addr, 0xff, channel->eventq.len);
/* Push event queue to card */
- EFX_POPULATE_OWORD_3(evq_ptr,
+ EFX_POPULATE_OWORD_3(reg,
FRF_AZ_EVQ_EN, 1,
FRF_AZ_EVQ_SIZE, __ffs(channel->eventq.entries),
FRF_AZ_EVQ_BUF_BASE_ID, channel->eventq.index);
- efx_writeo_table(efx, &evq_ptr, efx->type->evq_ptr_tbl_base,
+ efx_writeo_table(efx, ®, efx->type->evq_ptr_tbl_base,
channel->channel);
efx->type->push_irq_moderation(channel);
@@ -1051,13 +1062,15 @@
void efx_nic_fini_eventq(struct efx_channel *channel)
{
- efx_oword_t eventq_ptr;
+ efx_oword_t reg;
struct efx_nic *efx = channel->efx;
/* Remove event queue from card */
- EFX_ZERO_OWORD(eventq_ptr);
- efx_writeo_table(efx, &eventq_ptr, efx->type->evq_ptr_tbl_base,
+ EFX_ZERO_OWORD(reg);
+ efx_writeo_table(efx, ®, efx->type->evq_ptr_tbl_base,
channel->channel);
+ if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
+ efx_writeo_table(efx, ®, FR_BZ_TIMER_TBL, channel->channel);
/* Unpin event queue */
efx_fini_special_buffer(efx, &channel->eventq);
@@ -1220,8 +1233,15 @@
bool enabled, bool force)
{
efx_oword_t int_en_reg_ker;
+ unsigned int level = 0;
- EFX_POPULATE_OWORD_2(int_en_reg_ker,
+ if (EFX_WORKAROUND_17213(efx) && !EFX_INT_MODE_USE_MSI(efx))
+ /* Set the level always even if we're generating a test
+ * interrupt, because our legacy interrupt handler is safe */
+ level = 0x1f;
+
+ EFX_POPULATE_OWORD_3(int_en_reg_ker,
+ FRF_AZ_KER_INT_LEVE_SEL, level,
FRF_AZ_KER_INT_KER, force,
FRF_AZ_DRV_INT_EN_KER, enabled);
efx_writeo(efx, &int_en_reg_ker, FR_AZ_INT_EN_KER);
@@ -1334,15 +1354,30 @@
if (unlikely(syserr))
return efx_nic_fatal_interrupt(efx);
- /* Schedule processing of any interrupting queues */
- efx_for_each_channel(channel, efx) {
- if ((queues & 1) ||
- efx_event_present(
- efx_event(channel, channel->eventq_read_ptr))) {
+ if (queues != 0) {
+ if (EFX_WORKAROUND_15783(efx))
+ efx->irq_zero_count = 0;
+
+ /* Schedule processing of any interrupting queues */
+ efx_for_each_channel(channel, efx) {
+ if (queues & 1)
efx_schedule_channel(channel);
- result = IRQ_HANDLED;
+ queues >>= 1;
}
- queues >>= 1;
+ result = IRQ_HANDLED;
+
+ } else if (EFX_WORKAROUND_15783(efx) &&
+ efx->irq_zero_count++ == 0) {
+ efx_qword_t *event;
+
+ /* Ensure we rearm all event queues */
+ efx_for_each_channel(channel, efx) {
+ event = efx_event(channel, channel->eventq_read_ptr);
+ if (efx_event_present(event))
+ efx_schedule_channel(channel);
+ }
+
+ result = IRQ_HANDLED;
}
if (result == IRQ_HANDLED) {
diff --git a/drivers/net/sfc/nic.h b/drivers/net/sfc/nic.h
index e7eb304..57c510d 100644
--- a/drivers/net/sfc/nic.h
+++ b/drivers/net/sfc/nic.h
@@ -14,6 +14,7 @@
#include <linux/i2c-algo-bit.h>
#include "net_driver.h"
#include "efx.h"
+#include "mcdi.h"
/*
* Falcon hardware control
@@ -23,6 +24,7 @@
EFX_REV_FALCON_A0 = 0,
EFX_REV_FALCON_A1 = 1,
EFX_REV_FALCON_B0 = 2,
+ EFX_REV_SIENA_A0 = 3,
};
static inline int efx_nic_rev(struct efx_nic *efx)
@@ -32,6 +34,10 @@
extern u32 efx_nic_fpga_ver(struct efx_nic *efx);
+static inline bool efx_nic_has_mc(struct efx_nic *efx)
+{
+ return efx_nic_rev(efx) >= EFX_REV_SIENA_A0;
+}
/* NIC has two interlinked PCI functions for the same port. */
static inline bool efx_nic_is_dual_func(struct efx_nic *efx)
{
@@ -123,8 +129,25 @@
return &data->board;
}
+/**
+ * struct siena_nic_data - Siena NIC state
+ * @fw_version: Management controller firmware version
+ * @fw_build: Firmware build number
+ * @mcdi: Management-Controller-to-Driver Interface
+ * @wol_filter_id: Wake-on-LAN packet filter id
+ */
+struct siena_nic_data {
+ u64 fw_version;
+ u32 fw_build;
+ struct efx_mcdi_iface mcdi;
+ int wol_filter_id;
+};
+
+extern void siena_print_fwver(struct efx_nic *efx, char *buf, size_t len);
+
extern struct efx_nic_type falcon_a1_nic_type;
extern struct efx_nic_type falcon_b0_nic_type;
+extern struct efx_nic_type siena_a0_nic_type;
/**************************************************************************
*
diff --git a/drivers/net/sfc/phy.h b/drivers/net/sfc/phy.h
index 2ad1cec..64dff2d 100644
--- a/drivers/net/sfc/phy.h
+++ b/drivers/net/sfc/phy.h
@@ -41,4 +41,21 @@
extern void falcon_qt202x_set_led(struct efx_nic *p, int led, int state);
+/****************************************************************************
+ * Siena managed PHYs
+ */
+extern struct efx_phy_operations efx_mcdi_phy_ops;
+
+extern int efx_mcdi_mdio_read(struct efx_nic *efx, unsigned int bus,
+ unsigned int prtad, unsigned int devad,
+ u16 addr, u16 *value_out, u32 *status_out);
+extern int efx_mcdi_mdio_write(struct efx_nic *efx, unsigned int bus,
+ unsigned int prtad, unsigned int devad,
+ u16 addr, u16 value, u32 *status_out);
+extern void efx_mcdi_phy_decode_link(struct efx_nic *efx,
+ struct efx_link_state *link_state,
+ u32 speed, u32 flags, u32 fcntl);
+extern int efx_mcdi_phy_reconfigure(struct efx_nic *efx);
+extern void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa);
+
#endif
diff --git a/drivers/net/sfc/workarounds.h b/drivers/net/sfc/workarounds.h
index 021d0d2..ecee8f5 100644
--- a/drivers/net/sfc/workarounds.h
+++ b/drivers/net/sfc/workarounds.h
@@ -18,6 +18,7 @@
#define EFX_WORKAROUND_ALWAYS(efx) 1
#define EFX_WORKAROUND_FALCON_A(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_A1)
#define EFX_WORKAROUND_FALCON_AB(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_B0)
+#define EFX_WORKAROUND_SIENA(efx) (efx_nic_rev(efx) == EFX_REV_SIENA_A0)
#define EFX_WORKAROUND_10G(efx) EFX_IS10G(efx)
#define EFX_WORKAROUND_SFT9001(efx) ((efx)->phy_type == PHY_TYPE_SFT9001A || \
(efx)->phy_type == PHY_TYPE_SFT9001B)
@@ -35,6 +36,10 @@
#define EFX_WORKAROUND_11482 EFX_WORKAROUND_FALCON_AB
/* Truncated IPv4 packets can confuse the TX packet parser */
#define EFX_WORKAROUND_15592 EFX_WORKAROUND_FALCON_AB
+/* Legacy ISR read can return zero once */
+#define EFX_WORKAROUND_15783 EFX_WORKAROUND_SIENA
+/* Legacy interrupt storm when interrupt fifo fills */
+#define EFX_WORKAROUND_17213 EFX_WORKAROUND_SIENA
/* Spurious parity errors in TSORT buffers */
#define EFX_WORKAROUND_5129 EFX_WORKAROUND_FALCON_A