[dpdk-dev] [PATCH v5 06/17] net/ionic: add basic lif support
Alfredo Cardigliano
cardigliano at ntop.org
Sun Jan 19 16:53:44 CET 2020
Initialize LIFs (Logical Interfaces) which represents
external connections. The NIC can multiplex many LIFs
to a single port, but in most setups, LIF0 is the
primary control for the port.
Create a device for each LIF.
Signed-off-by: Alfredo Cardigliano <cardigliano at ntop.org>
Reviewed-by: Shannon Nelson <snelson at pensando.io>
---
drivers/net/ionic/Makefile | 4 +
drivers/net/ionic/ionic.h | 5 ++
drivers/net/ionic/ionic_dev.c | 38 ++++++++
drivers/net/ionic/ionic_dev.h | 8 ++
drivers/net/ionic/ionic_ethdev.c | 134 ++++++++++++++++++++++++++++
drivers/net/ionic/ionic_ethdev.h | 14 +++
drivers/net/ionic/ionic_lif.c | 144 +++++++++++++++++++++++++++++++
drivers/net/ionic/ionic_lif.h | 48 +++++++++++
drivers/net/ionic/meson.build | 1 +
9 files changed, 396 insertions(+)
create mode 100644 drivers/net/ionic/ionic_ethdev.h
create mode 100644 drivers/net/ionic/ionic_lif.c
create mode 100644 drivers/net/ionic/ionic_lif.h
diff --git a/drivers/net/ionic/Makefile b/drivers/net/ionic/Makefile
index 31abe5b95..2dc88cdd5 100644
--- a/drivers/net/ionic/Makefile
+++ b/drivers/net/ionic/Makefile
@@ -8,6 +8,9 @@ include $(RTE_SDK)/mk/rte.vars.mk
#
LIB = librte_pmd_ionic.a
+# Required to use rte_eth_dev_create and rte_eth_dev_destroy
+CFLAGS += -DALLOW_EXPERIMENTAL_API
+
CFLAGS += -O3
CFLAGS += $(WERROR_FLAGS)
@@ -23,6 +26,7 @@ LDLIBS += -lrte_bus_pci
SRCS-$(CONFIG_RTE_LIBRTE_IONIC_PMD) += ionic_mac_api.c
SRCS-$(CONFIG_RTE_LIBRTE_IONIC_PMD) += ionic_dev.c
SRCS-$(CONFIG_RTE_LIBRTE_IONIC_PMD) += ionic_ethdev.c
+SRCS-$(CONFIG_RTE_LIBRTE_IONIC_PMD) += ionic_lif.c
SRCS-$(CONFIG_RTE_LIBRTE_IONIC_PMD) += ionic_main.c
include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/net/ionic/ionic.h b/drivers/net/ionic/ionic.h
index 1adea8f7d..964589ed5 100644
--- a/drivers/net/ionic/ionic.h
+++ b/drivers/net/ionic/ionic.h
@@ -50,7 +50,12 @@ struct ionic_adapter {
struct ionic_dev idev;
struct ionic_dev_bar bars[IONIC_BARS_MAX];
struct ionic_identity ident;
+ struct ionic_lif *lifs[IONIC_LIFS_MAX];
uint32_t num_bars;
+ uint32_t nlifs;
+ uint32_t max_ntxqs_per_lif;
+ uint32_t max_nrxqs_per_lif;
+ uint32_t nintrs;
bool is_mgmt_nic;
struct rte_pci_device *pci_dev;
LIST_ENTRY(ionic_adapter) pci_adapters;
diff --git a/drivers/net/ionic/ionic_dev.c b/drivers/net/ionic/ionic_dev.c
index d74834122..c63709ee8 100644
--- a/drivers/net/ionic/ionic_dev.c
+++ b/drivers/net/ionic/ionic_dev.c
@@ -259,3 +259,41 @@ ionic_dev_cmd_port_loopback(struct ionic_dev *idev, uint8_t loopback_mode)
ionic_dev_cmd_go(idev, &cmd);
}
+
+/* LIF commands */
+
+void
+ionic_dev_cmd_lif_identify(struct ionic_dev *idev, uint8_t type, uint8_t ver)
+{
+ union ionic_dev_cmd cmd = {
+ .lif_identify.opcode = IONIC_CMD_LIF_IDENTIFY,
+ .lif_identify.type = type,
+ .lif_identify.ver = ver,
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
+
+void
+ionic_dev_cmd_lif_init(struct ionic_dev *idev, uint16_t lif_index,
+ rte_iova_t info_pa)
+{
+ union ionic_dev_cmd cmd = {
+ .lif_init.opcode = IONIC_CMD_LIF_INIT,
+ .lif_init.index = lif_index,
+ .lif_init.info_pa = info_pa,
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
+
+void
+ionic_dev_cmd_lif_reset(struct ionic_dev *idev, uint16_t lif_index)
+{
+ union ionic_dev_cmd cmd = {
+ .lif_init.opcode = IONIC_CMD_LIF_RESET,
+ .lif_init.index = lif_index,
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
diff --git a/drivers/net/ionic/ionic_dev.h b/drivers/net/ionic/ionic_dev.h
index 75c50d4cb..afcfcbf56 100644
--- a/drivers/net/ionic/ionic_dev.h
+++ b/drivers/net/ionic/ionic_dev.h
@@ -9,6 +9,8 @@
#include "ionic_if.h"
#include "ionic_regs.h"
+#define IONIC_LIFS_MAX 1024
+
#define IONIC_DEVCMD_TIMEOUT 30 /* devcmd_timeout */
#define IONIC_ALIGN 4096
@@ -142,4 +144,10 @@ void ionic_dev_cmd_port_pause(struct ionic_dev *idev, uint8_t pause_type);
void ionic_dev_cmd_port_loopback(struct ionic_dev *idev,
uint8_t loopback_mode);
+void ionic_dev_cmd_lif_identify(struct ionic_dev *idev, uint8_t type,
+ uint8_t ver);
+void ionic_dev_cmd_lif_init(struct ionic_dev *idev, uint16_t lif_index,
+ rte_iova_t addr);
+void ionic_dev_cmd_lif_reset(struct ionic_dev *idev, uint16_t lif_index);
+
#endif /* _IONIC_DEV_H_ */
diff --git a/drivers/net/ionic/ionic_ethdev.c b/drivers/net/ionic/ionic_ethdev.c
index b0ae7b076..f58d2d3a6 100644
--- a/drivers/net/ionic/ionic_ethdev.c
+++ b/drivers/net/ionic/ionic_ethdev.c
@@ -7,11 +7,17 @@
#include <rte_ethdev.h>
#include <rte_ethdev_driver.h>
#include <rte_malloc.h>
+#include <rte_ethdev_pci.h>
#include "ionic_logs.h"
#include "ionic.h"
#include "ionic_dev.h"
#include "ionic_mac_api.h"
+#include "ionic_lif.h"
+#include "ionic_ethdev.h"
+
+static int eth_ionic_dev_init(struct rte_eth_dev *eth_dev, void *init_params);
+static int eth_ionic_dev_uninit(struct rte_eth_dev *eth_dev);
int ionic_logtype;
@@ -22,10 +28,81 @@ static const struct rte_pci_id pci_id_ionic_map[] = {
{ .vendor_id = 0, /* sentinel */ },
};
+static const struct eth_dev_ops ionic_eth_dev_ops = {
+};
+
+static int
+eth_ionic_dev_init(struct rte_eth_dev *eth_dev, void *init_params)
+{
+ struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
+ struct ionic_lif *lif = IONIC_ETH_DEV_TO_LIF(eth_dev);
+ struct ionic_adapter *adapter = (struct ionic_adapter *)init_params;
+ int err;
+
+ IONIC_PRINT_CALL();
+
+ eth_dev->dev_ops = &ionic_eth_dev_ops;
+
+ /* Multi-process not supported, primary does initialization anyway */
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ rte_eth_copy_pci_info(eth_dev, pci_dev);
+
+ lif->index = adapter->nlifs;
+ lif->eth_dev = eth_dev;
+ lif->adapter = adapter;
+ adapter->lifs[adapter->nlifs] = lif;
+
+ err = ionic_lif_alloc(lif);
+ if (err) {
+ IONIC_PRINT(ERR, "Cannot allocate LIFs: %d, aborting",
+ err);
+ goto err;
+ }
+
+ err = ionic_lif_init(lif);
+ if (err) {
+ IONIC_PRINT(ERR, "Cannot init LIFs: %d, aborting", err);
+ goto err_free_lif;
+ }
+
+ IONIC_PRINT(DEBUG, "Port %u initialized", eth_dev->data->port_id);
+
+ return 0;
+
+err_free_lif:
+ ionic_lif_free(lif);
+err:
+ return err;
+}
+
+static int
+eth_ionic_dev_uninit(struct rte_eth_dev *eth_dev)
+{
+ struct ionic_lif *lif = IONIC_ETH_DEV_TO_LIF(eth_dev);
+ struct ionic_adapter *adapter = lif->adapter;
+
+ IONIC_PRINT_CALL();
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ adapter->lifs[lif->index] = NULL;
+
+ ionic_lif_deinit(lif);
+ ionic_lif_free(lif);
+
+ eth_dev->dev_ops = NULL;
+
+ return 0;
+}
+
static int
eth_ionic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
struct rte_pci_device *pci_dev)
{
+ char name[RTE_ETH_NAME_MAX_LEN];
struct rte_mem_resource *resource;
struct ionic_adapter *adapter;
struct ionic_hw *hw;
@@ -112,6 +189,38 @@ eth_ionic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
goto err_free_adapter;
}
+ /* Configure LIFs */
+ err = ionic_lif_identify(adapter);
+ if (err) {
+ IONIC_PRINT(ERR, "Cannot identify lif: %d, aborting", err);
+ goto err_free_adapter;
+ }
+
+ /* Allocate and init LIFs */
+ err = ionic_lifs_size(adapter);
+ if (err) {
+ IONIC_PRINT(ERR, "Cannot size LIFs: %d, aborting", err);
+ goto err_free_adapter;
+ }
+
+ adapter->nlifs = 0;
+ for (i = 0; i < adapter->ident.dev.nlifs; i++) {
+ snprintf(name, sizeof(name), "net_%s_lif_%lu",
+ pci_dev->device.name, i);
+
+ err = rte_eth_dev_create(&pci_dev->device, name,
+ sizeof(struct ionic_lif),
+ NULL, NULL,
+ eth_ionic_dev_init, adapter);
+ if (err) {
+ IONIC_PRINT(ERR, "Cannot create eth device for "
+ "ionic lif %s", name);
+ break;
+ }
+
+ adapter->nlifs++;
+ }
+
return 0;
err_free_adapter:
@@ -123,6 +232,31 @@ eth_ionic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
static int
eth_ionic_pci_remove(struct rte_pci_device *pci_dev __rte_unused)
{
+ char name[RTE_ETH_NAME_MAX_LEN];
+ struct ionic_adapter *adapter = NULL;
+ struct rte_eth_dev *eth_dev;
+ struct ionic_lif *lif;
+ uint32_t i;
+
+ /* Adapter lookup is using (the first) eth_dev name */
+ snprintf(name, sizeof(name), "net_%s_lif_0",
+ pci_dev->device.name);
+
+ eth_dev = rte_eth_dev_allocated(name);
+ if (eth_dev) {
+ lif = IONIC_ETH_DEV_TO_LIF(eth_dev);
+ adapter = lif->adapter;
+ }
+
+ if (adapter) {
+ for (i = 0; i < adapter->nlifs; i++) {
+ lif = adapter->lifs[i];
+ rte_eth_dev_destroy(lif->eth_dev, eth_ionic_dev_uninit);
+ }
+
+ rte_free(adapter);
+ }
+
return 0;
}
diff --git a/drivers/net/ionic/ionic_ethdev.h b/drivers/net/ionic/ionic_ethdev.h
new file mode 100644
index 000000000..7228d8969
--- /dev/null
+++ b/drivers/net/ionic/ionic_ethdev.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
+ * Copyright(c) 2018-2019 Pensando Systems, Inc. All rights reserved.
+ */
+
+#ifndef _IONIC_ETHDEV_H_
+#define _IONIC_ETHDEV_H_
+
+#define IONIC_ETH_DEV_TO_LIF(eth_dev) ((struct ionic_lif *) \
+ (eth_dev)->data->dev_private)
+#define IONIC_ETH_DEV_TO_ADAPTER(eth_dev) \
+ (IONIC_ETH_DEV_TO_LIF(eth_dev)->adapter)
+
+#endif /* _IONIC_ETHDEV_H_ */
+
diff --git a/drivers/net/ionic/ionic_lif.c b/drivers/net/ionic/ionic_lif.c
new file mode 100644
index 000000000..2559b4c16
--- /dev/null
+++ b/drivers/net/ionic/ionic_lif.c
@@ -0,0 +1,144 @@
+/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
+ * Copyright(c) 2018-2019 Pensando Systems, Inc. All rights reserved.
+ */
+
+#include <rte_malloc.h>
+#include <rte_ethdev_driver.h>
+
+#include "ionic.h"
+#include "ionic_logs.h"
+#include "ionic_lif.h"
+#include "ionic_ethdev.h"
+
+int
+ionic_lif_alloc(struct ionic_lif *lif)
+{
+ uint32_t socket_id = rte_socket_id();
+
+ snprintf(lif->name, sizeof(lif->name), "lif%u", lif->index);
+
+ IONIC_PRINT(DEBUG, "Allocating Lif Info");
+
+ lif->info_sz = RTE_ALIGN(sizeof(*lif->info), PAGE_SIZE);
+
+ lif->info_z = rte_eth_dma_zone_reserve(lif->eth_dev,
+ "lif_info", 0 /* queue_idx*/,
+ lif->info_sz, IONIC_ALIGN, socket_id);
+ if (!lif->info_z) {
+ IONIC_PRINT(ERR, "Cannot allocate lif info memory");
+ return -ENOMEM;
+ }
+
+ lif->info = lif->info_z->addr;
+ lif->info_pa = lif->info_z->iova;
+
+ return 0;
+}
+
+void
+ionic_lif_free(struct ionic_lif *lif)
+{
+ if (lif->info) {
+ rte_memzone_free(lif->info_z);
+ lif->info = NULL;
+ }
+}
+
+int
+ionic_lif_init(struct ionic_lif *lif)
+{
+ struct ionic_dev *idev = &lif->adapter->idev;
+ struct ionic_q_init_comp comp;
+ int err;
+
+ ionic_dev_cmd_lif_init(idev, lif->index, lif->info_pa);
+ err = ionic_dev_cmd_wait_check(idev, IONIC_DEVCMD_TIMEOUT);
+ ionic_dev_cmd_comp(idev, &comp);
+ if (err)
+ return err;
+
+ lif->hw_index = comp.hw_index;
+
+ lif->state |= IONIC_LIF_F_INITED;
+
+ return 0;
+}
+
+void
+ionic_lif_deinit(struct ionic_lif *lif)
+{
+ if (!(lif->state & IONIC_LIF_F_INITED))
+ return;
+
+ lif->state &= ~IONIC_LIF_F_INITED;
+}
+
+int
+ionic_lif_identify(struct ionic_adapter *adapter)
+{
+ struct ionic_dev *idev = &adapter->idev;
+ struct ionic_identity *ident = &adapter->ident;
+ int err;
+ unsigned int i;
+ unsigned int lif_words = sizeof(ident->lif.words) /
+ sizeof(ident->lif.words[0]);
+ unsigned int cmd_words = sizeof(idev->dev_cmd->data) /
+ sizeof(idev->dev_cmd->data[0]);
+ unsigned int nwords;
+
+ ionic_dev_cmd_lif_identify(idev, IONIC_LIF_TYPE_CLASSIC,
+ IONIC_IDENTITY_VERSION_1);
+ err = ionic_dev_cmd_wait_check(idev, IONIC_DEVCMD_TIMEOUT);
+ if (err)
+ return (err);
+
+ nwords = RTE_MIN(lif_words, cmd_words);
+ for (i = 0; i < nwords; i++)
+ ident->lif.words[i] = ioread32(&idev->dev_cmd->data[i]);
+
+ IONIC_PRINT(INFO, "capabilities 0x%" PRIx64 " ",
+ ident->lif.capabilities);
+
+ IONIC_PRINT(INFO, "eth.max_ucast_filters 0x%" PRIx32 " ",
+ ident->lif.eth.max_ucast_filters);
+ IONIC_PRINT(INFO, "eth.max_mcast_filters 0x%" PRIx32 " ",
+ ident->lif.eth.max_mcast_filters);
+
+ IONIC_PRINT(INFO, "eth.features 0x%" PRIx64 " ",
+ ident->lif.eth.config.features);
+ IONIC_PRINT(INFO, "eth.queue_count[IONIC_QTYPE_ADMINQ] 0x%" PRIx32 " ",
+ ident->lif.eth.config.queue_count[IONIC_QTYPE_ADMINQ]);
+ IONIC_PRINT(INFO, "eth.queue_count[IONIC_QTYPE_NOTIFYQ] 0x%" PRIx32 " ",
+ ident->lif.eth.config.queue_count[IONIC_QTYPE_NOTIFYQ]);
+ IONIC_PRINT(INFO, "eth.queue_count[IONIC_QTYPE_RXQ] 0x%" PRIx32 " ",
+ ident->lif.eth.config.queue_count[IONIC_QTYPE_RXQ]);
+ IONIC_PRINT(INFO, "eth.queue_count[IONIC_QTYPE_TXQ] 0x%" PRIx32 " ",
+ ident->lif.eth.config.queue_count[IONIC_QTYPE_TXQ]);
+
+ return 0;
+}
+
+int
+ionic_lifs_size(struct ionic_adapter *adapter)
+{
+ struct ionic_identity *ident = &adapter->ident;
+ uint32_t nlifs = ident->dev.nlifs;
+ uint32_t nintrs, dev_nintrs = ident->dev.nintrs;
+
+ adapter->max_ntxqs_per_lif =
+ ident->lif.eth.config.queue_count[IONIC_QTYPE_TXQ];
+ adapter->max_nrxqs_per_lif =
+ ident->lif.eth.config.queue_count[IONIC_QTYPE_RXQ];
+
+ nintrs = nlifs * 1 /* notifyq */;
+
+ if (nintrs > dev_nintrs) {
+ IONIC_PRINT(ERR, "At most %d intr queues supported, minimum required is %u",
+ dev_nintrs, nintrs);
+ return -ENOSPC;
+ }
+
+ adapter->nintrs = nintrs;
+
+ return 0;
+}
diff --git a/drivers/net/ionic/ionic_lif.h b/drivers/net/ionic/ionic_lif.h
new file mode 100644
index 000000000..a75e420c6
--- /dev/null
+++ b/drivers/net/ionic/ionic_lif.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
+ * Copyright(c) 2018-2019 Pensando Systems, Inc. All rights reserved.
+ */
+
+#ifndef _IONIC_LIF_H_
+#define _IONIC_LIF_H_
+
+#include <inttypes.h>
+
+#include <rte_ethdev.h>
+#include <rte_ether.h>
+
+#include "ionic_osdep.h"
+#include "ionic_dev.h"
+
+#define IONIC_LIF_F_INITED BIT(0)
+
+#define IONIC_LIF_NAME_MAX_SZ (32)
+
+struct ionic_lif {
+ struct ionic_adapter *adapter;
+ struct rte_eth_dev *eth_dev;
+ uint16_t port_id; /**< Device port identifier */
+ uint32_t index;
+ uint32_t hw_index;
+ uint32_t state;
+ char name[IONIC_LIF_NAME_MAX_SZ];
+ uint32_t info_sz;
+ struct ionic_lif_info *info;
+ rte_iova_t info_pa;
+ const struct rte_memzone *info_z;
+};
+
+int ionic_lif_identify(struct ionic_adapter *adapter);
+int ionic_lifs_size(struct ionic_adapter *ionic);
+
+int ionic_lif_alloc(struct ionic_lif *lif);
+void ionic_lif_free(struct ionic_lif *lif);
+
+int ionic_lif_init(struct ionic_lif *lif);
+void ionic_lif_deinit(struct ionic_lif *lif);
+
+int ionic_lif_start(struct ionic_lif *lif);
+
+int ionic_lif_configure(struct ionic_lif *lif);
+void ionic_lif_reset(struct ionic_lif *lif);
+
+#endif /* _IONIC_LIF_H_ */
diff --git a/drivers/net/ionic/meson.build b/drivers/net/ionic/meson.build
index 4744ae126..f28016105 100644
--- a/drivers/net/ionic/meson.build
+++ b/drivers/net/ionic/meson.build
@@ -5,6 +5,7 @@ sources = files(
'ionic_mac_api.c',
'ionic_dev.c',
'ionic_ethdev.c',
+ 'ionic_lif.c',
'ionic_main.c'
)
--
2.17.1
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