From e712d52b9f2a8ecf14ba0a2ec9a80ed0b194c4a1 Mon Sep 17 00:00:00 2001 From: Yuval Mintz Date: Mon, 26 Oct 2015 11:02:27 +0200 Subject: [PATCH] qede: Add basic Network driver The Qlogic Everest Driver for Ethernet is the Ethernet specific module for QL4xxx ethernet products by Qlogic. This patch adds a very minimal PCI driver, one that doesn't yet register a network device, but one that does interact with qed and does a basic initialization of the HW. Signed-off-by: Yuval Mintz Signed-off-by: Ariel Elior Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/Kconfig | 5 + drivers/net/ethernet/qlogic/Makefile | 1 + drivers/net/ethernet/qlogic/qede/Makefile | 3 + drivers/net/ethernet/qlogic/qede/qede.h | 73 ++++ drivers/net/ethernet/qlogic/qede/qede_main.c | 354 +++++++++++++++++++ 5 files changed, 436 insertions(+) create mode 100644 drivers/net/ethernet/qlogic/qede/Makefile create mode 100644 drivers/net/ethernet/qlogic/qede/qede.h create mode 100644 drivers/net/ethernet/qlogic/qede/qede_main.c diff --git a/drivers/net/ethernet/qlogic/Kconfig b/drivers/net/ethernet/qlogic/Kconfig index 58c3fb388f46..30a6f246dfc9 100644 --- a/drivers/net/ethernet/qlogic/Kconfig +++ b/drivers/net/ethernet/qlogic/Kconfig @@ -97,4 +97,9 @@ config QED ---help--- This enables the support for ... +config QEDE + tristate "QLogic QED 25/40/100Gb Ethernet NIC" + depends on QED + ---help--- + This enables the support for ... endif # NET_VENDOR_QLOGIC diff --git a/drivers/net/ethernet/qlogic/Makefile b/drivers/net/ethernet/qlogic/Makefile index 7600138268ee..cee90e05beb8 100644 --- a/drivers/net/ethernet/qlogic/Makefile +++ b/drivers/net/ethernet/qlogic/Makefile @@ -7,3 +7,4 @@ obj-$(CONFIG_QLCNIC) += qlcnic/ obj-$(CONFIG_QLGE) += qlge/ obj-$(CONFIG_NETXEN_NIC) += netxen/ obj-$(CONFIG_QED) += qed/ +obj-$(CONFIG_QEDE)+= qede/ diff --git a/drivers/net/ethernet/qlogic/qede/Makefile b/drivers/net/ethernet/qlogic/qede/Makefile new file mode 100644 index 000000000000..bedfe9fc736b --- /dev/null +++ b/drivers/net/ethernet/qlogic/qede/Makefile @@ -0,0 +1,3 @@ +obj-$(CONFIG_QEDE) := qede.o + +qede-y := qede_main.o diff --git a/drivers/net/ethernet/qlogic/qede/qede.h b/drivers/net/ethernet/qlogic/qede/qede.h new file mode 100644 index 000000000000..7e2bcfae0db9 --- /dev/null +++ b/drivers/net/ethernet/qlogic/qede/qede.h @@ -0,0 +1,73 @@ +/* QLogic qede NIC Driver +* Copyright (c) 2015 QLogic Corporation +* +* This software is available under the terms of the GNU General Public License +* (GPL) Version 2, available from the file COPYING in the main directory of +* this source tree. +*/ + +#ifndef _QEDE_H_ +#define _QEDE_H_ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define QEDE_MAJOR_VERSION 8 +#define QEDE_MINOR_VERSION 4 +#define QEDE_REVISION_VERSION 0 +#define QEDE_ENGINEERING_VERSION 0 +#define DRV_MODULE_VERSION __stringify(QEDE_MAJOR_VERSION) "." \ + __stringify(QEDE_MINOR_VERSION) "." \ + __stringify(QEDE_REVISION_VERSION) "." \ + __stringify(QEDE_ENGINEERING_VERSION) + +#define QEDE_ETH_INTERFACE_VERSION 300 + +#define DRV_MODULE_SYM qede + +struct qede_dev { + struct qed_dev *cdev; + struct net_device *ndev; + struct pci_dev *pdev; + + u32 dp_module; + u8 dp_level; + + const struct qed_eth_ops *ops; + + struct qed_dev_eth_info dev_info; +#define QEDE_MAX_RSS_CNT(edev) ((edev)->dev_info.num_queues) +#define QEDE_MAX_TSS_CNT(edev) ((edev)->dev_info.num_queues * \ + (edev)->dev_info.num_tc) + + u16 num_rss; + u8 num_tc; +#define QEDE_RSS_CNT(edev) ((edev)->num_rss) +#define QEDE_TSS_CNT(edev) ((edev)->num_rss * \ + (edev)->num_tc) +#define QEDE_TSS_IDX(edev, txqidx) ((txqidx) % (edev)->num_rss) +#define QEDE_TC_IDX(edev, txqidx) ((txqidx) / (edev)->num_rss) + + struct qed_int_info int_info; + unsigned char primary_mac[ETH_ALEN]; + + /* Smaller private varaiant of the RTNL lock */ + struct mutex qede_lock; + u32 state; /* Protected by qede_lock */ +}; + +/* Debug print definitions */ +#define DP_NAME(edev) ((edev)->ndev->name) + +#endif /* _QEDE_H_ */ diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c new file mode 100644 index 000000000000..02ed6dbf55a7 --- /dev/null +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c @@ -0,0 +1,354 @@ +/* QLogic qede NIC Driver +* Copyright (c) 2015 QLogic Corporation +* +* This software is available under the terms of the GNU General Public License +* (GPL) Version 2, available from the file COPYING in the main directory of +* this source tree. +*/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "qede.h" + +static const char version[] = "QLogic QL4xxx 40G/100G Ethernet Driver qede " + DRV_MODULE_VERSION "\n"; + +MODULE_DESCRIPTION("QLogic 40G/100G Ethernet Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_MODULE_VERSION); + +static uint debug; +module_param(debug, uint, 0); +MODULE_PARM_DESC(debug, " Default debug msglevel"); + +static const struct qed_eth_ops *qed_ops; + +#define CHIP_NUM_57980S_40 0x1634 +#define CHIP_NUM_57980S_10 0x1635 +#define CHIP_NUM_57980S_MF 0x1636 +#define CHIP_NUM_57980S_100 0x1644 +#define CHIP_NUM_57980S_50 0x1654 +#define CHIP_NUM_57980S_25 0x1656 + +#ifndef PCI_DEVICE_ID_NX2_57980E +#define PCI_DEVICE_ID_57980S_40 CHIP_NUM_57980S_40 +#define PCI_DEVICE_ID_57980S_10 CHIP_NUM_57980S_10 +#define PCI_DEVICE_ID_57980S_MF CHIP_NUM_57980S_MF +#define PCI_DEVICE_ID_57980S_100 CHIP_NUM_57980S_100 +#define PCI_DEVICE_ID_57980S_50 CHIP_NUM_57980S_50 +#define PCI_DEVICE_ID_57980S_25 CHIP_NUM_57980S_25 +#endif + +static const struct pci_device_id qede_pci_tbl[] = { + { PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_40), 0 }, + { PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_10), 0 }, + { PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_MF), 0 }, + { PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_100), 0 }, + { PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_50), 0 }, + { PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_25), 0 }, + { 0 } +}; + +MODULE_DEVICE_TABLE(pci, qede_pci_tbl); + +static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id); + +#define TX_TIMEOUT (5 * HZ) + +static void qede_remove(struct pci_dev *pdev); + +static struct pci_driver qede_pci_driver = { + .name = "qede", + .id_table = qede_pci_tbl, + .probe = qede_probe, + .remove = qede_remove, +}; + +static +int __init qede_init(void) +{ + int ret; + u32 qed_ver; + + pr_notice("qede_init: %s\n", version); + + qed_ver = qed_get_protocol_version(QED_PROTOCOL_ETH); + if (qed_ver != QEDE_ETH_INTERFACE_VERSION) { + pr_notice("Version mismatch [%08x != %08x]\n", + qed_ver, + QEDE_ETH_INTERFACE_VERSION); + return -EINVAL; + } + + qed_ops = qed_get_eth_ops(QEDE_ETH_INTERFACE_VERSION); + if (!qed_ops) { + pr_notice("Failed to get qed ethtool operations\n"); + return -EINVAL; + } + + ret = pci_register_driver(&qede_pci_driver); + if (ret) { + pr_notice("Failed to register driver\n"); + qed_put_eth_ops(); + return -EINVAL; + } + + return 0; +} + +static void __exit qede_cleanup(void) +{ + pr_notice("qede_cleanup called\n"); + + pci_unregister_driver(&qede_pci_driver); + qed_put_eth_ops(); +} + +module_init(qede_init); +module_exit(qede_cleanup); + +/* ------------------------------------------------------------------------- + * START OF PROBE / REMOVE + * ------------------------------------------------------------------------- + */ + +static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev, + struct pci_dev *pdev, + struct qed_dev_eth_info *info, + u32 dp_module, + u8 dp_level) +{ + struct net_device *ndev; + struct qede_dev *edev; + + ndev = alloc_etherdev_mqs(sizeof(*edev), + info->num_queues, + info->num_queues); + if (!ndev) { + pr_err("etherdev allocation failed\n"); + return NULL; + } + + edev = netdev_priv(ndev); + edev->ndev = ndev; + edev->cdev = cdev; + edev->pdev = pdev; + edev->dp_module = dp_module; + edev->dp_level = dp_level; + edev->ops = qed_ops; + + DP_INFO(edev, "Allocated netdev with 64 tx queues and 64 rx queues\n"); + + SET_NETDEV_DEV(ndev, &pdev->dev); + + memcpy(&edev->dev_info, info, sizeof(*info)); + + edev->num_tc = edev->dev_info.num_tc; + + return edev; +} + +static void qede_init_ndev(struct qede_dev *edev) +{ + struct net_device *ndev = edev->ndev; + struct pci_dev *pdev = edev->pdev; + u32 hw_features; + + pci_set_drvdata(pdev, ndev); + + ndev->mem_start = edev->dev_info.common.pci_mem_start; + ndev->base_addr = ndev->mem_start; + ndev->mem_end = edev->dev_info.common.pci_mem_end; + ndev->irq = edev->dev_info.common.pci_irq; + + ndev->watchdog_timeo = TX_TIMEOUT; + + /* user-changeble features */ + hw_features = NETIF_F_GRO | NETIF_F_SG | + NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | + NETIF_F_TSO | NETIF_F_TSO6; + + ndev->vlan_features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM | + NETIF_F_HIGHDMA; + ndev->features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM | + NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA | + NETIF_F_HW_VLAN_CTAG_TX; + + ndev->hw_features = hw_features; + + /* Set network device HW mac */ + ether_addr_copy(edev->ndev->dev_addr, edev->dev_info.common.hw_mac); +} + +/* This function converts from 32b param to two params of level and module + * Input 32b decoding: + * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the + * 'happy' flow, e.g. memory allocation failed. + * b30 - enable all INFO prints. INFO prints are for major steps in the flow + * and provide important parameters. + * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that + * module. VERBOSE prints are for tracking the specific flow in low level. + * + * Notice that the level should be that of the lowest required logs. + */ +static void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level) +{ + *p_dp_level = QED_LEVEL_NOTICE; + *p_dp_module = 0; + + if (debug & QED_LOG_VERBOSE_MASK) { + *p_dp_level = QED_LEVEL_VERBOSE; + *p_dp_module = (debug & 0x3FFFFFFF); + } else if (debug & QED_LOG_INFO_MASK) { + *p_dp_level = QED_LEVEL_INFO; + } else if (debug & QED_LOG_NOTICE_MASK) { + *p_dp_level = QED_LEVEL_NOTICE; + } +} + +static void qede_update_pf_params(struct qed_dev *cdev) +{ + struct qed_pf_params pf_params; + + /* 16 rx + 16 tx */ + memset(&pf_params, 0, sizeof(struct qed_pf_params)); + pf_params.eth_pf_params.num_cons = 32; + qed_ops->common->update_pf_params(cdev, &pf_params); +} + +enum qede_probe_mode { + QEDE_PROBE_NORMAL, +}; + +static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level, + enum qede_probe_mode mode) +{ + struct qed_slowpath_params params; + struct qed_dev_eth_info dev_info; + struct qede_dev *edev; + struct qed_dev *cdev; + int rc; + + if (unlikely(dp_level & QED_LEVEL_INFO)) + pr_notice("Starting qede probe\n"); + + cdev = qed_ops->common->probe(pdev, QED_PROTOCOL_ETH, + dp_module, dp_level); + if (!cdev) { + rc = -ENODEV; + goto err0; + } + + qede_update_pf_params(cdev); + + /* Start the Slowpath-process */ + memset(¶ms, 0, sizeof(struct qed_slowpath_params)); + params.int_mode = QED_INT_MODE_MSIX; + params.drv_major = QEDE_MAJOR_VERSION; + params.drv_minor = QEDE_MINOR_VERSION; + params.drv_rev = QEDE_REVISION_VERSION; + params.drv_eng = QEDE_ENGINEERING_VERSION; + strlcpy(params.name, "qede LAN", QED_DRV_VER_STR_SIZE); + rc = qed_ops->common->slowpath_start(cdev, ¶ms); + if (rc) { + pr_notice("Cannot start slowpath\n"); + goto err1; + } + + /* Learn information crucial for qede to progress */ + rc = qed_ops->fill_dev_info(cdev, &dev_info); + if (rc) + goto err2; + + edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module, + dp_level); + if (!edev) { + rc = -ENOMEM; + goto err2; + } + + qede_init_ndev(edev); + + edev->ops->common->set_id(cdev, edev->ndev->name, DRV_MODULE_VERSION); + + DP_INFO(edev, "Ending successfully qede probe\n"); + + return 0; + +err2: + qed_ops->common->slowpath_stop(cdev); +err1: + qed_ops->common->remove(cdev); +err0: + return rc; +} + +static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + u32 dp_module = 0; + u8 dp_level = 0; + + qede_config_debug(debug, &dp_module, &dp_level); + + return __qede_probe(pdev, dp_module, dp_level, + QEDE_PROBE_NORMAL); +} + +enum qede_remove_mode { + QEDE_REMOVE_NORMAL, +}; + +static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode) +{ + struct net_device *ndev = pci_get_drvdata(pdev); + struct qede_dev *edev = netdev_priv(ndev); + struct qed_dev *cdev = edev->cdev; + + DP_INFO(edev, "Starting qede_remove\n"); + + edev->ops->common->set_power_state(cdev, PCI_D0); + + pci_set_drvdata(pdev, NULL); + + free_netdev(ndev); + + /* Use global ops since we've freed edev */ + qed_ops->common->slowpath_stop(cdev); + qed_ops->common->remove(cdev); + + pr_notice("Ending successfully qede_remove\n"); +} + +static void qede_remove(struct pci_dev *pdev) +{ + __qede_remove(pdev, QEDE_REMOVE_NORMAL); +} -- 2.30.2