Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 449 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/iavf/iavf.h b/drivers/net/ethernet/intel/iavf/iavf.h
new file mode 100644
index 000000000..6a6b5f6e8
--- /dev/null
+++ b/drivers/net/ethernet/intel/iavf/iavf.h
@@ -0,0 +1,449 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 2013 - 2018 Intel Corporation. */
+
+#ifndef _IAVF_H_
+#define _IAVF_H_
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/aer.h>
+#include <linux/netdevice.h>
+#include <linux/vmalloc.h>
+#include <linux/interrupt.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/sctp.h>
+#include <linux/ipv6.h>
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+#include <linux/timer.h>
+#include <linux/workqueue.h>
+#include <linux/wait.h>
+#include <linux/delay.h>
+#include <linux/gfp.h>
+#include <linux/skbuff.h>
+#include <linux/dma-mapping.h>
+#include <linux/etherdevice.h>
+#include <linux/socket.h>
+#include <linux/jiffies.h>
+#include <net/ip6_checksum.h>
+#include <net/pkt_cls.h>
+#include <net/udp.h>
+#include <net/tc_act/tc_gact.h>
+#include <net/tc_act/tc_mirred.h>
+
+#include "iavf_type.h"
+#include <linux/avf/virtchnl.h>
+#include "iavf_txrx.h"
+
+#define DEFAULT_DEBUG_LEVEL_SHIFT 3
+#define PFX "iavf: "
+
+/* VSI state flags shared with common code */
+enum iavf_vsi_state_t {
+	__IAVF_VSI_DOWN,
+	/* This must be last as it determines the size of the BITMAP */
+	__IAVF_VSI_STATE_SIZE__,
+};
+
+/* dummy struct to make common code less painful */
+struct iavf_vsi {
+	struct iavf_adapter *back;
+	struct net_device *netdev;
+	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
+	u16 seid;
+	u16 id;
+	DECLARE_BITMAP(state, __IAVF_VSI_STATE_SIZE__);
+	int base_vector;
+	u16 work_limit;
+	u16 qs_handle;
+	void *priv;     /* client driver data reference. */
+};
+
+/* How many Rx Buffers do we bundle into one write to the hardware ? */
+#define IAVF_RX_BUFFER_WRITE	16	/* Must be power of 2 */
+#define IAVF_DEFAULT_TXD	512
+#define IAVF_DEFAULT_RXD	512
+#define IAVF_MAX_TXD		4096
+#define IAVF_MIN_TXD		64
+#define IAVF_MAX_RXD		4096
+#define IAVF_MIN_RXD		64
+#define IAVF_REQ_DESCRIPTOR_MULTIPLE	32
+#define IAVF_MAX_AQ_BUF_SIZE	4096
+#define IAVF_AQ_LEN		32
+#define IAVF_AQ_MAX_ERR	20 /* times to try before resetting AQ */
+
+#define MAXIMUM_ETHERNET_VLAN_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)
+
+#define IAVF_RX_DESC(R, i) (&(((union iavf_32byte_rx_desc *)((R)->desc))[i]))
+#define IAVF_TX_DESC(R, i) (&(((struct iavf_tx_desc *)((R)->desc))[i]))
+#define IAVF_TX_CTXTDESC(R, i) \
+	(&(((struct iavf_tx_context_desc *)((R)->desc))[i]))
+#define IAVF_MAX_REQ_QUEUES 16
+
+#define IAVF_HKEY_ARRAY_SIZE ((IAVF_VFQF_HKEY_MAX_INDEX + 1) * 4)
+#define IAVF_HLUT_ARRAY_SIZE ((IAVF_VFQF_HLUT_MAX_INDEX + 1) * 4)
+#define IAVF_MBPS_DIVISOR	125000 /* divisor to convert to Mbps */
+#define IAVF_MBPS_QUANTA	50
+
+#define IAVF_VIRTCHNL_VF_RESOURCE_SIZE (sizeof(struct virtchnl_vf_resource) + \
+					(IAVF_MAX_VF_VSI * \
+					 sizeof(struct virtchnl_vsi_resource)))
+
+/* MAX_MSIX_Q_VECTORS of these are allocated,
+ * but we only use one per queue-specific vector.
+ */
+struct iavf_q_vector {
+	struct iavf_adapter *adapter;
+	struct iavf_vsi *vsi;
+	struct napi_struct napi;
+	struct iavf_ring_container rx;
+	struct iavf_ring_container tx;
+	u32 ring_mask;
+	u8 itr_countdown;	/* when 0 should adjust adaptive ITR */
+	u8 num_ringpairs;	/* total number of ring pairs in vector */
+	u16 v_idx;		/* index in the vsi->q_vector array. */
+	u16 reg_idx;		/* register index of the interrupt */
+	char name[IFNAMSIZ + 15];
+	bool arm_wb_state;
+	cpumask_t affinity_mask;
+	struct irq_affinity_notify affinity_notify;
+};
+
+/* Helper macros to switch between ints/sec and what the register uses.
+ * And yes, it's the same math going both ways.  The lowest value
+ * supported by all of the iavf hardware is 8.
+ */
+#define EITR_INTS_PER_SEC_TO_REG(_eitr) \
+	((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8)
+#define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG
+
+#define IAVF_DESC_UNUSED(R) \
+	((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
+	(R)->next_to_clean - (R)->next_to_use - 1)
+
+#define OTHER_VECTOR 1
+#define NONQ_VECS (OTHER_VECTOR)
+
+#define MIN_MSIX_Q_VECTORS 1
+#define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NONQ_VECS)
+
+#define IAVF_QUEUE_END_OF_LIST 0x7FF
+#define IAVF_FREE_VECTOR 0x7FFF
+struct iavf_mac_filter {
+	struct list_head list;
+	u8 macaddr[ETH_ALEN];
+	bool is_new_mac;	/* filter is new, wait for PF decision */
+	bool remove;		/* filter needs to be removed */
+	bool add;		/* filter needs to be added */
+};
+
+struct iavf_vlan_filter {
+	struct list_head list;
+	u16 vlan;
+	bool remove;		/* filter needs to be removed */
+	bool add;		/* filter needs to be added */
+};
+
+#define IAVF_MAX_TRAFFIC_CLASS	4
+/* State of traffic class creation */
+enum iavf_tc_state_t {
+	__IAVF_TC_INVALID, /* no traffic class, default state */
+	__IAVF_TC_RUNNING, /* traffic classes have been created */
+};
+
+/* channel info */
+struct iavf_channel_config {
+	struct virtchnl_channel_info ch_info[IAVF_MAX_TRAFFIC_CLASS];
+	enum iavf_tc_state_t state;
+	u8 total_qps;
+};
+
+/* State of cloud filter */
+enum iavf_cloud_filter_state_t {
+	__IAVF_CF_INVALID,	 /* cloud filter not added */
+	__IAVF_CF_ADD_PENDING, /* cloud filter pending add by the PF */
+	__IAVF_CF_DEL_PENDING, /* cloud filter pending del by the PF */
+	__IAVF_CF_ACTIVE,	 /* cloud filter is active */
+};
+
+/* Driver state. The order of these is important! */
+enum iavf_state_t {
+	__IAVF_STARTUP,		/* driver loaded, probe complete */
+	__IAVF_REMOVE,		/* driver is being unloaded */
+	__IAVF_INIT_VERSION_CHECK,	/* aq msg sent, awaiting reply */
+	__IAVF_INIT_GET_RESOURCES,	/* aq msg sent, awaiting reply */
+	__IAVF_INIT_SW,		/* got resources, setting up structs */
+	__IAVF_RESETTING,		/* in reset */
+	__IAVF_COMM_FAILED,		/* communication with PF failed */
+	/* Below here, watchdog is running */
+	__IAVF_DOWN,			/* ready, can be opened */
+	__IAVF_DOWN_PENDING,		/* descending, waiting for watchdog */
+	__IAVF_TESTING,		/* in ethtool self-test */
+	__IAVF_RUNNING,		/* opened, working */
+};
+
+enum iavf_critical_section_t {
+	__IAVF_IN_CRITICAL_TASK,	/* cannot be interrupted */
+	__IAVF_IN_CLIENT_TASK,
+	__IAVF_IN_REMOVE_TASK,	/* device being removed */
+};
+
+#define IAVF_CLOUD_FIELD_OMAC		0x01
+#define IAVF_CLOUD_FIELD_IMAC		0x02
+#define IAVF_CLOUD_FIELD_IVLAN	0x04
+#define IAVF_CLOUD_FIELD_TEN_ID	0x08
+#define IAVF_CLOUD_FIELD_IIP		0x10
+
+#define IAVF_CF_FLAGS_OMAC	IAVF_CLOUD_FIELD_OMAC
+#define IAVF_CF_FLAGS_IMAC	IAVF_CLOUD_FIELD_IMAC
+#define IAVF_CF_FLAGS_IMAC_IVLAN	(IAVF_CLOUD_FIELD_IMAC |\
+					 IAVF_CLOUD_FIELD_IVLAN)
+#define IAVF_CF_FLAGS_IMAC_TEN_ID	(IAVF_CLOUD_FIELD_IMAC |\
+					 IAVF_CLOUD_FIELD_TEN_ID)
+#define IAVF_CF_FLAGS_OMAC_TEN_ID_IMAC	(IAVF_CLOUD_FIELD_OMAC |\
+						 IAVF_CLOUD_FIELD_IMAC |\
+						 IAVF_CLOUD_FIELD_TEN_ID)
+#define IAVF_CF_FLAGS_IMAC_IVLAN_TEN_ID	(IAVF_CLOUD_FIELD_IMAC |\
+						 IAVF_CLOUD_FIELD_IVLAN |\
+						 IAVF_CLOUD_FIELD_TEN_ID)
+#define IAVF_CF_FLAGS_IIP	IAVF_CLOUD_FIELD_IIP
+
+/* bookkeeping of cloud filters */
+struct iavf_cloud_filter {
+	enum iavf_cloud_filter_state_t state;
+	struct list_head list;
+	struct virtchnl_filter f;
+	unsigned long cookie;
+	bool del;		/* filter needs to be deleted */
+	bool add;		/* filter needs to be added */
+};
+
+#define IAVF_RESET_WAIT_MS 10
+#define IAVF_RESET_WAIT_DETECTED_COUNT 500
+#define IAVF_RESET_WAIT_COMPLETE_COUNT 2000
+
+/* board specific private data structure */
+struct iavf_adapter {
+	struct work_struct reset_task;
+	struct work_struct adminq_task;
+	struct delayed_work client_task;
+	struct delayed_work init_task;
+	wait_queue_head_t down_waitqueue;
+	struct iavf_q_vector *q_vectors;
+	struct list_head vlan_filter_list;
+	struct list_head mac_filter_list;
+	/* Lock to protect accesses to MAC and VLAN lists */
+	spinlock_t mac_vlan_list_lock;
+	char misc_vector_name[IFNAMSIZ + 9];
+	int num_active_queues;
+	int num_req_queues;
+
+	/* TX */
+	struct iavf_ring *tx_rings;
+	u32 tx_timeout_count;
+	u32 tx_desc_count;
+
+	/* RX */
+	struct iavf_ring *rx_rings;
+	u64 hw_csum_rx_error;
+	u32 rx_desc_count;
+	int num_msix_vectors;
+	int num_iwarp_msix;
+	int iwarp_base_vector;
+	u32 client_pending;
+	struct iavf_client_instance *cinst;
+	struct msix_entry *msix_entries;
+
+	u32 flags;
+#define IAVF_FLAG_RX_CSUM_ENABLED		BIT(0)
+#define IAVF_FLAG_PF_COMMS_FAILED		BIT(3)
+#define IAVF_FLAG_RESET_PENDING		BIT(4)
+#define IAVF_FLAG_RESET_NEEDED		BIT(5)
+#define IAVF_FLAG_WB_ON_ITR_CAPABLE		BIT(6)
+#define IAVF_FLAG_SERVICE_CLIENT_REQUESTED	BIT(9)
+#define IAVF_FLAG_CLIENT_NEEDS_OPEN		BIT(10)
+#define IAVF_FLAG_CLIENT_NEEDS_CLOSE		BIT(11)
+#define IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS	BIT(12)
+#define IAVF_FLAG_PROMISC_ON			BIT(13)
+#define IAVF_FLAG_ALLMULTI_ON			BIT(14)
+#define IAVF_FLAG_LEGACY_RX			BIT(15)
+#define IAVF_FLAG_REINIT_ITR_NEEDED		BIT(16)
+#define IAVF_FLAG_QUEUES_DISABLED		BIT(17)
+/* duplicates for common code */
+#define IAVF_FLAG_DCB_ENABLED			0
+	/* flags for admin queue service task */
+	u32 aq_required;
+#define IAVF_FLAG_AQ_ENABLE_QUEUES		BIT(0)
+#define IAVF_FLAG_AQ_DISABLE_QUEUES		BIT(1)
+#define IAVF_FLAG_AQ_ADD_MAC_FILTER		BIT(2)
+#define IAVF_FLAG_AQ_ADD_VLAN_FILTER		BIT(3)
+#define IAVF_FLAG_AQ_DEL_MAC_FILTER		BIT(4)
+#define IAVF_FLAG_AQ_DEL_VLAN_FILTER		BIT(5)
+#define IAVF_FLAG_AQ_CONFIGURE_QUEUES		BIT(6)
+#define IAVF_FLAG_AQ_MAP_VECTORS		BIT(7)
+#define IAVF_FLAG_AQ_HANDLE_RESET		BIT(8)
+#define IAVF_FLAG_AQ_CONFIGURE_RSS		BIT(9) /* direct AQ config */
+#define IAVF_FLAG_AQ_GET_CONFIG		BIT(10)
+/* Newer style, RSS done by the PF so we can ignore hardware vagaries. */
+#define IAVF_FLAG_AQ_GET_HENA			BIT(11)
+#define IAVF_FLAG_AQ_SET_HENA			BIT(12)
+#define IAVF_FLAG_AQ_SET_RSS_KEY		BIT(13)
+#define IAVF_FLAG_AQ_SET_RSS_LUT		BIT(14)
+#define IAVF_FLAG_AQ_REQUEST_PROMISC		BIT(15)
+#define IAVF_FLAG_AQ_RELEASE_PROMISC		BIT(16)
+#define IAVF_FLAG_AQ_REQUEST_ALLMULTI		BIT(17)
+#define IAVF_FLAG_AQ_RELEASE_ALLMULTI		BIT(18)
+#define IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING	BIT(19)
+#define IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING	BIT(20)
+#define IAVF_FLAG_AQ_ENABLE_CHANNELS		BIT(21)
+#define IAVF_FLAG_AQ_DISABLE_CHANNELS		BIT(22)
+#define IAVF_FLAG_AQ_ADD_CLOUD_FILTER		BIT(23)
+#define IAVF_FLAG_AQ_DEL_CLOUD_FILTER		BIT(24)
+
+	/* OS defined structs */
+	struct net_device *netdev;
+	struct pci_dev *pdev;
+
+	struct iavf_hw hw; /* defined in iavf_type.h */
+
+	enum iavf_state_t state;
+	enum iavf_state_t last_state;
+	unsigned long crit_section;
+
+	struct delayed_work watchdog_task;
+	bool netdev_registered;
+	bool link_up;
+	enum virtchnl_link_speed link_speed;
+	/* This is only populated if the VIRTCHNL_VF_CAP_ADV_LINK_SPEED is set
+	 * in vf_res->vf_cap_flags. Use ADV_LINK_SUPPORT macro to determine if
+	 * this field is valid. This field should be used going forward and the
+	 * enum virtchnl_link_speed above should be considered the legacy way of
+	 * storing/communicating link speeds.
+	 */
+	u32 link_speed_mbps;
+
+	enum virtchnl_ops current_op;
+#define CLIENT_ALLOWED(_a) ((_a)->vf_res ? \
+			    (_a)->vf_res->vf_cap_flags & \
+				VIRTCHNL_VF_OFFLOAD_IWARP : \
+			    0)
+#define CLIENT_ENABLED(_a) ((_a)->cinst)
+/* RSS by the PF should be preferred over RSS via other methods. */
+#define RSS_PF(_a) ((_a)->vf_res->vf_cap_flags & \
+		    VIRTCHNL_VF_OFFLOAD_RSS_PF)
+#define RSS_AQ(_a) ((_a)->vf_res->vf_cap_flags & \
+		    VIRTCHNL_VF_OFFLOAD_RSS_AQ)
+#define RSS_REG(_a) (!((_a)->vf_res->vf_cap_flags & \
+		       (VIRTCHNL_VF_OFFLOAD_RSS_AQ | \
+			VIRTCHNL_VF_OFFLOAD_RSS_PF)))
+#define VLAN_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \
+			  VIRTCHNL_VF_OFFLOAD_VLAN)
+#define ADV_LINK_SUPPORT(_a) ((_a)->vf_res->vf_cap_flags & \
+			      VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
+	struct virtchnl_vf_resource *vf_res; /* incl. all VSIs */
+	struct virtchnl_vsi_resource *vsi_res; /* our LAN VSI */
+	struct virtchnl_version_info pf_version;
+#define PF_IS_V11(_a) (((_a)->pf_version.major == 1) && \
+		       ((_a)->pf_version.minor == 1))
+	u16 msg_enable;
+	struct iavf_eth_stats current_stats;
+	struct iavf_vsi vsi;
+	u32 aq_wait_count;
+	/* RSS stuff */
+	u64 hena;
+	u16 rss_key_size;
+	u16 rss_lut_size;
+	u8 *rss_key;
+	u8 *rss_lut;
+	/* ADQ related members */
+	struct iavf_channel_config ch_config;
+	u8 num_tc;
+	struct list_head cloud_filter_list;
+	/* lock to protect access to the cloud filter list */
+	spinlock_t cloud_filter_list_lock;
+	u16 num_cloud_filters;
+};
+
+
+/* Ethtool Private Flags */
+
+/* lan device, used by client interface */
+struct iavf_device {
+	struct list_head list;
+	struct iavf_adapter *vf;
+};
+
+/* needed by iavf_ethtool.c */
+extern char iavf_driver_name[];
+extern struct workqueue_struct *iavf_wq;
+
+static inline void iavf_change_state(struct iavf_adapter *adapter,
+				     enum iavf_state_t state)
+{
+	if (adapter->state != state) {
+		adapter->last_state = adapter->state;
+		adapter->state = state;
+	}
+}
+
+int iavf_up(struct iavf_adapter *adapter);
+void iavf_down(struct iavf_adapter *adapter);
+int iavf_process_config(struct iavf_adapter *adapter);
+void iavf_schedule_reset(struct iavf_adapter *adapter);
+void iavf_reset(struct iavf_adapter *adapter);
+void iavf_set_ethtool_ops(struct net_device *netdev);
+void iavf_update_stats(struct iavf_adapter *adapter);
+void iavf_reset_interrupt_capability(struct iavf_adapter *adapter);
+int iavf_init_interrupt_scheme(struct iavf_adapter *adapter);
+void iavf_irq_enable_queues(struct iavf_adapter *adapter);
+void iavf_free_all_tx_resources(struct iavf_adapter *adapter);
+void iavf_free_all_rx_resources(struct iavf_adapter *adapter);
+
+void iavf_napi_add_all(struct iavf_adapter *adapter);
+void iavf_napi_del_all(struct iavf_adapter *adapter);
+
+int iavf_send_api_ver(struct iavf_adapter *adapter);
+int iavf_verify_api_ver(struct iavf_adapter *adapter);
+int iavf_send_vf_config_msg(struct iavf_adapter *adapter);
+int iavf_get_vf_config(struct iavf_adapter *adapter);
+void iavf_irq_enable(struct iavf_adapter *adapter, bool flush);
+void iavf_configure_queues(struct iavf_adapter *adapter);
+void iavf_deconfigure_queues(struct iavf_adapter *adapter);
+void iavf_enable_queues(struct iavf_adapter *adapter);
+void iavf_disable_queues(struct iavf_adapter *adapter);
+void iavf_map_queues(struct iavf_adapter *adapter);
+int iavf_request_queues(struct iavf_adapter *adapter, int num);
+void iavf_add_ether_addrs(struct iavf_adapter *adapter);
+void iavf_del_ether_addrs(struct iavf_adapter *adapter);
+void iavf_add_vlans(struct iavf_adapter *adapter);
+void iavf_del_vlans(struct iavf_adapter *adapter);
+void iavf_set_promiscuous(struct iavf_adapter *adapter, int flags);
+void iavf_request_stats(struct iavf_adapter *adapter);
+void iavf_request_reset(struct iavf_adapter *adapter);
+void iavf_get_hena(struct iavf_adapter *adapter);
+void iavf_set_hena(struct iavf_adapter *adapter);
+void iavf_set_rss_key(struct iavf_adapter *adapter);
+void iavf_set_rss_lut(struct iavf_adapter *adapter);
+void iavf_enable_vlan_stripping(struct iavf_adapter *adapter);
+void iavf_disable_vlan_stripping(struct iavf_adapter *adapter);
+void iavf_virtchnl_completion(struct iavf_adapter *adapter,
+			      enum virtchnl_ops v_opcode,
+			      enum iavf_status v_retval, u8 *msg, u16 msglen);
+int iavf_config_rss(struct iavf_adapter *adapter);
+int iavf_lan_add_device(struct iavf_adapter *adapter);
+int iavf_lan_del_device(struct iavf_adapter *adapter);
+void iavf_client_subtask(struct iavf_adapter *adapter);
+void iavf_notify_client_message(struct iavf_vsi *vsi, u8 *msg, u16 len);
+void iavf_notify_client_l2_params(struct iavf_vsi *vsi);
+void iavf_notify_client_open(struct iavf_vsi *vsi);
+void iavf_notify_client_close(struct iavf_vsi *vsi, bool reset);
+void iavf_enable_channels(struct iavf_adapter *adapter);
+void iavf_disable_channels(struct iavf_adapter *adapter);
+void iavf_add_cloud_filter(struct iavf_adapter *adapter);
+void iavf_del_cloud_filter(struct iavf_adapter *adapter);
+struct iavf_mac_filter *iavf_add_filter(struct iavf_adapter *adapter,
+					const u8 *macaddr);
+#endif /* _IAVF_H_ */