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8e2773ae35
linux-next/drivers/net/ethernet/intel/i40e/i40e.h
Shannon Nelson 8e2773ae35 i40e: add wake-on-lan support 
Wake on LAN is disabled by default and will remain that way for most
platforms, but there is an NVM setting that allows vendors to enable it
for a port if they think they've provided the right power environment
for the device.  This patch adds code to check the NVM setting and enable
Magic Packet use if WoL is enabled for the port.

Since only Magic Packet is supported, there's not a lot of HW configuration
needed.

Change-Id: I44e904a7b15695e34683009f487064cd86ea59b0
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-01-03 19:22:25 -08:00

571 lines
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/*******************************************************************************
*
* Intel Ethernet Controller XL710 Family Linux Driver
* Copyright(c) 2013 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* Contact Information:
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
******************************************************************************/
#ifndef _I40E_H_
#define _I40E_H_
#include <net/tcp.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/aer.h>
#include <linux/netdevice.h>
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/string.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/sctp.h>
#include <linux/pkt_sched.h>
#include <linux/ipv6.h>
#include <net/checksum.h>
#include <net/ip6_checksum.h>
#include <linux/ethtool.h>
#include <linux/if_vlan.h>
#include "i40e_type.h"
#include "i40e_prototype.h"
#include "i40e_virtchnl.h"
#include "i40e_virtchnl_pf.h"
#include "i40e_txrx.h"
/* Useful i40e defaults */
#define I40E_BASE_PF_SEID 16
#define I40E_BASE_VSI_SEID 512
#define I40E_BASE_VEB_SEID 288
#define I40E_MAX_VEB 16
#define I40E_MAX_NPAR_QPS 32
#define I40E_MAX_NUM_DESCRIPTORS 4096
#define I40E_MAX_REGISTER 0x0038FFFF
#define I40E_DEFAULT_NUM_DESCRIPTORS 512
#define I40E_REQ_DESCRIPTOR_MULTIPLE 32
#define I40E_MIN_NUM_DESCRIPTORS 64
#define I40E_MIN_MSIX 2
#define I40E_DEFAULT_NUM_VMDQ_VSI 8 /* max 256 VSIs */
#define I40E_DEFAULT_QUEUES_PER_VMDQ 2 /* max 16 qps */
#define I40E_DEFAULT_QUEUES_PER_VF 4
#define I40E_DEFAULT_QUEUES_PER_TC 1 /* should be a power of 2 */
#define I40E_FDIR_RING 0
#define I40E_FDIR_RING_COUNT 32
#define I40E_MAX_AQ_BUF_SIZE 4096
#define I40E_AQ_LEN 32
#define I40E_AQ_WORK_LIMIT 16
#define I40E_MAX_USER_PRIORITY 8
#define I40E_DEFAULT_MSG_ENABLE 4
#define I40E_NVM_VERSION_LO_SHIFT 0
#define I40E_NVM_VERSION_LO_MASK (0xff << I40E_NVM_VERSION_LO_SHIFT)
#define I40E_NVM_VERSION_HI_SHIFT 8
#define I40E_NVM_VERSION_HI_MASK (0xff << I40E_NVM_VERSION_HI_SHIFT)
/* The values in here are decimal coded as hex as is the case in the NVM map*/
#define I40E_CURRENT_NVM_VERSION_HI 0x2
#define I40E_CURRENT_NVM_VERSION_LO 0x1
/* magic for getting defines into strings */
#define STRINGIFY(foo) #foo
#define XSTRINGIFY(bar) STRINGIFY(bar)
#ifndef ARCH_HAS_PREFETCH
#define prefetch(X)
#endif
#define I40E_RX_DESC(R, i) \
((ring_is_16byte_desc_enabled(R)) \
? (union i40e_32byte_rx_desc *) \
(&(((union i40e_16byte_rx_desc *)((R)->desc))[i])) \
: (&(((union i40e_32byte_rx_desc *)((R)->desc))[i])))
#define I40E_TX_DESC(R, i) \
(&(((struct i40e_tx_desc *)((R)->desc))[i]))
#define I40E_TX_CTXTDESC(R, i) \
(&(((struct i40e_tx_context_desc *)((R)->desc))[i]))
#define I40E_TX_FDIRDESC(R, i) \
(&(((struct i40e_filter_program_desc *)((R)->desc))[i]))
/* default to trying for four seconds */
#define I40E_TRY_LINK_TIMEOUT (4 * HZ)
/* driver state flags */
enum i40e_state_t {
__I40E_TESTING,
__I40E_CONFIG_BUSY,
__I40E_CONFIG_DONE,
__I40E_DOWN,
__I40E_NEEDS_RESTART,
__I40E_SERVICE_SCHED,
__I40E_ADMINQ_EVENT_PENDING,
__I40E_MDD_EVENT_PENDING,
__I40E_VFLR_EVENT_PENDING,
__I40E_RESET_RECOVERY_PENDING,
__I40E_RESET_INTR_RECEIVED,
__I40E_REINIT_REQUESTED,
__I40E_PF_RESET_REQUESTED,
__I40E_CORE_RESET_REQUESTED,
__I40E_GLOBAL_RESET_REQUESTED,
__I40E_EMP_RESET_REQUESTED,
__I40E_FILTER_OVERFLOW_PROMISC,
__I40E_SUSPENDED,
};
enum i40e_interrupt_policy {
I40E_INTERRUPT_BEST_CASE,
I40E_INTERRUPT_MEDIUM,
I40E_INTERRUPT_LOWEST
};
struct i40e_lump_tracking {
u16 num_entries;
u16 search_hint;
u16 list[0];
#define I40E_PILE_VALID_BIT 0x8000
};
#define I40E_DEFAULT_ATR_SAMPLE_RATE 20
#define I40E_FDIR_MAX_RAW_PACKET_LOOKUP 512
struct i40e_fdir_data {
u16 q_index;
u8 flex_off;
u8 pctype;
u16 dest_vsi;
u8 dest_ctl;
u8 fd_status;
u16 cnt_index;
u32 fd_id;
u8 *raw_packet;
};
#define I40E_DCB_PRIO_TYPE_STRICT 0
#define I40E_DCB_PRIO_TYPE_ETS 1
#define I40E_DCB_STRICT_PRIO_CREDITS 127
#define I40E_MAX_USER_PRIORITY 8
/* DCB per TC information data structure */
struct i40e_tc_info {
u16 qoffset; /* Queue offset from base queue */
u16 qcount; /* Total Queues */
u8 netdev_tc; /* Netdev TC index if netdev associated */
};
/* TC configuration data structure */
struct i40e_tc_configuration {
u8 numtc; /* Total number of enabled TCs */
u8 enabled_tc; /* TC map */
struct i40e_tc_info tc_info[I40E_MAX_TRAFFIC_CLASS];
};
/* struct that defines the Ethernet device */
struct i40e_pf {
struct pci_dev *pdev;
struct i40e_hw hw;
unsigned long state;
unsigned long link_check_timeout;
struct msix_entry *msix_entries;
u16 num_msix_entries;
bool fc_autoneg_status;
u16 eeprom_version;
u16 num_vmdq_vsis; /* num vmdq pools this pf has set up */
u16 num_vmdq_qps; /* num queue pairs per vmdq pool */
u16 num_vmdq_msix; /* num queue vectors per vmdq pool */
u16 num_req_vfs; /* num vfs requested for this vf */
u16 num_vf_qps; /* num queue pairs per vf */
u16 num_tc_qps; /* num queue pairs per TC */
u16 num_lan_qps; /* num lan queues this pf has set up */
u16 num_lan_msix; /* num queue vectors for the base pf vsi */
int queues_left; /* queues left unclaimed */
u16 rss_size; /* num queues in the RSS array */
u16 rss_size_max; /* HW defined max RSS queues */
u16 fdir_pf_filter_count; /* num of guaranteed filters for this PF */
u8 atr_sample_rate;
bool wol_en;
enum i40e_interrupt_policy int_policy;
u16 rx_itr_default;
u16 tx_itr_default;
u16 msg_enable;
char misc_int_name[IFNAMSIZ + 9];
u16 adminq_work_limit; /* num of admin receive queue desc to process */
int service_timer_period;
struct timer_list service_timer;
struct work_struct service_task;
u64 flags;
#define I40E_FLAG_RX_CSUM_ENABLED (u64)(1 << 1)
#define I40E_FLAG_MSI_ENABLED (u64)(1 << 2)
#define I40E_FLAG_MSIX_ENABLED (u64)(1 << 3)
#define I40E_FLAG_RX_1BUF_ENABLED (u64)(1 << 4)
#define I40E_FLAG_RX_PS_ENABLED (u64)(1 << 5)
#define I40E_FLAG_RSS_ENABLED (u64)(1 << 6)
#define I40E_FLAG_MQ_ENABLED (u64)(1 << 7)
#define I40E_FLAG_VMDQ_ENABLED (u64)(1 << 8)
#define I40E_FLAG_FDIR_REQUIRES_REINIT (u64)(1 << 9)
#define I40E_FLAG_NEED_LINK_UPDATE (u64)(1 << 10)
#define I40E_FLAG_IN_NETPOLL (u64)(1 << 13)
#define I40E_FLAG_16BYTE_RX_DESC_ENABLED (u64)(1 << 14)
#define I40E_FLAG_CLEAN_ADMINQ (u64)(1 << 15)
#define I40E_FLAG_FILTER_SYNC (u64)(1 << 16)
#define I40E_FLAG_PROCESS_MDD_EVENT (u64)(1 << 18)
#define I40E_FLAG_PROCESS_VFLR_EVENT (u64)(1 << 19)
#define I40E_FLAG_SRIOV_ENABLED (u64)(1 << 20)
#define I40E_FLAG_DCB_ENABLED (u64)(1 << 21)
#define I40E_FLAG_FDIR_ENABLED (u64)(1 << 22)
#define I40E_FLAG_FDIR_ATR_ENABLED (u64)(1 << 23)
#define I40E_FLAG_MFP_ENABLED (u64)(1 << 27)
u16 num_tx_queues;
u16 num_rx_queues;
bool stat_offsets_loaded;
struct i40e_hw_port_stats stats;
struct i40e_hw_port_stats stats_offsets;
u32 tx_timeout_count;
u32 tx_timeout_recovery_level;
unsigned long tx_timeout_last_recovery;
u32 hw_csum_rx_error;
u32 led_status;
u16 corer_count; /* Core reset count */
u16 globr_count; /* Global reset count */
u16 empr_count; /* EMP reset count */
u16 pfr_count; /* PF reset count */
u16 sw_int_count; /* SW interrupt count */
struct mutex switch_mutex;
u16 lan_vsi; /* our default LAN VSI */
u16 lan_veb; /* initial relay, if exists */
#define I40E_NO_VEB 0xffff
#define I40E_NO_VSI 0xffff
u16 next_vsi; /* Next unallocated VSI - 0-based! */
struct i40e_vsi **vsi;
struct i40e_veb *veb[I40E_MAX_VEB];
struct i40e_lump_tracking *qp_pile;
struct i40e_lump_tracking *irq_pile;
/* switch config info */
u16 pf_seid;
u16 main_vsi_seid;
u16 mac_seid;
struct i40e_aqc_get_switch_config_data *sw_config;
struct kobject *switch_kobj;
#ifdef CONFIG_DEBUG_FS
struct dentry *i40e_dbg_pf;
#endif /* CONFIG_DEBUG_FS */
u16 instance; /* A unique number per i40e_pf instance in the system */
/* sr-iov config info */
struct i40e_vf *vf;
int num_alloc_vfs; /* actual number of VFs allocated */
u32 vf_aq_requests;
/* DCBx/DCBNL capability for PF that indicates
* whether DCBx is managed by firmware or host
* based agent (LLDPAD). Also, indicates what
* flavor of DCBx protocol (IEEE/CEE) is supported
* by the device. For now we're supporting IEEE
* mode only.
*/
u16 dcbx_cap;
u32 fcoe_hmc_filt_num;
u32 fcoe_hmc_cntx_num;
struct i40e_filter_control_settings filter_settings;
};
struct i40e_mac_filter {
struct list_head list;
u8 macaddr[ETH_ALEN];
#define I40E_VLAN_ANY -1
s16 vlan;
u8 counter; /* number of instances of this filter */
bool is_vf; /* filter belongs to a VF */
bool is_netdev; /* filter belongs to a netdev */
bool changed; /* filter needs to be sync'd to the HW */
};
struct i40e_veb {
struct i40e_pf *pf;
u16 idx;
u16 veb_idx; /* index of VEB parent */
u16 seid;
u16 uplink_seid;
u16 stats_idx; /* index of VEB parent */
u8 enabled_tc;
u16 flags;
u16 bw_limit;
u8 bw_max_quanta;
bool is_abs_credits;
u8 bw_tc_share_credits[I40E_MAX_TRAFFIC_CLASS];
u16 bw_tc_limit_credits[I40E_MAX_TRAFFIC_CLASS];
u8 bw_tc_max_quanta[I40E_MAX_TRAFFIC_CLASS];
struct kobject *kobj;
bool stat_offsets_loaded;
struct i40e_eth_stats stats;
struct i40e_eth_stats stats_offsets;
};
/* struct that defines a VSI, associated with a dev */
struct i40e_vsi {
struct net_device *netdev;
unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
bool netdev_registered;
bool stat_offsets_loaded;
u32 current_netdev_flags;
unsigned long state;
#define I40E_VSI_FLAG_FILTER_CHANGED (1<<0)
#define I40E_VSI_FLAG_VEB_OWNER (1<<1)
unsigned long flags;
struct list_head mac_filter_list;
/* VSI stats */
struct rtnl_link_stats64 net_stats;
struct rtnl_link_stats64 net_stats_offsets;
struct i40e_eth_stats eth_stats;
struct i40e_eth_stats eth_stats_offsets;
u32 tx_restart;
u32 tx_busy;
u32 rx_buf_failed;
u32 rx_page_failed;
/* These are containers of ring pointers, allocated at run-time */
struct i40e_ring **rx_rings;
struct i40e_ring **tx_rings;
u16 work_limit;
/* high bit set means dynamic, use accessor routines to read/write.
* hardware only supports 2us resolution for the ITR registers.
* these values always store the USER setting, and must be converted
* before programming to a register.
*/
u16 rx_itr_setting;
u16 tx_itr_setting;
u16 max_frame;
u16 rx_hdr_len;
u16 rx_buf_len;
u8 dtype;
/* List of q_vectors allocated to this VSI */
struct i40e_q_vector **q_vectors;
int num_q_vectors;
int base_vector;
u16 seid; /* HW index of this VSI (absolute index) */
u16 id; /* VSI number */
u16 uplink_seid;
u16 base_queue; /* vsi's first queue in hw array */
u16 alloc_queue_pairs; /* Allocated Tx/Rx queues */
u16 num_queue_pairs; /* Used tx and rx pairs */
u16 num_desc;
enum i40e_vsi_type type; /* VSI type, e.g., LAN, FCoE, etc */
u16 vf_id; /* Virtual function ID for SRIOV VSIs */
struct i40e_tc_configuration tc_config;
struct i40e_aqc_vsi_properties_data info;
/* VSI BW limit (absolute across all TCs) */
u16 bw_limit; /* VSI BW Limit (0 = disabled) */
u8 bw_max_quanta; /* Max Quanta when BW limit is enabled */
/* Relative TC credits across VSIs */
u8 bw_ets_share_credits[I40E_MAX_TRAFFIC_CLASS];
/* TC BW limit credits within VSI */
u16 bw_ets_limit_credits[I40E_MAX_TRAFFIC_CLASS];
/* TC BW limit max quanta within VSI */
u8 bw_ets_max_quanta[I40E_MAX_TRAFFIC_CLASS];
struct i40e_pf *back; /* Backreference to associated PF */
u16 idx; /* index in pf->vsi[] */
u16 veb_idx; /* index of VEB parent */
struct kobject *kobj; /* sysfs object */
/* VSI specific handlers */
irqreturn_t (*irq_handler)(int irq, void *data);
} ____cacheline_internodealigned_in_smp;
struct i40e_netdev_priv {
struct i40e_vsi *vsi;
};
/* struct that defines an interrupt vector */
struct i40e_q_vector {
struct i40e_vsi *vsi;
u16 v_idx; /* index in the vsi->q_vector array. */
u16 reg_idx; /* register index of the interrupt */
struct napi_struct napi;
struct i40e_ring_container rx;
struct i40e_ring_container tx;
u8 num_ringpairs; /* total number of ring pairs in vector */
cpumask_t affinity_mask;
struct rcu_head rcu; /* to avoid race with update stats on free */
char name[IFNAMSIZ + 9];
} ____cacheline_internodealigned_in_smp;
/* lan device */
struct i40e_device {
struct list_head list;
struct i40e_pf *pf;
};
/**
* i40e_fw_version_str - format the FW and NVM version strings
* @hw: ptr to the hardware info
**/
static inline char *i40e_fw_version_str(struct i40e_hw *hw)
{
static char buf[32];
snprintf(buf, sizeof(buf),
"f%d.%d a%d.%d n%02x.%02x e%08x",
hw->aq.fw_maj_ver, hw->aq.fw_min_ver,
hw->aq.api_maj_ver, hw->aq.api_min_ver,
(hw->nvm.version & I40E_NVM_VERSION_HI_MASK)
>> I40E_NVM_VERSION_HI_SHIFT,
(hw->nvm.version & I40E_NVM_VERSION_LO_MASK)
>> I40E_NVM_VERSION_LO_SHIFT,
hw->nvm.eetrack);
return buf;
}
/**
* i40e_netdev_to_pf: Retrieve the PF struct for given netdev
* @netdev: the corresponding netdev
*
* Return the PF struct for the given netdev
**/
static inline struct i40e_pf *i40e_netdev_to_pf(struct net_device *netdev)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_vsi *vsi = np->vsi;
return vsi->back;
}
static inline void i40e_vsi_setup_irqhandler(struct i40e_vsi *vsi,
irqreturn_t (*irq_handler)(int, void *))
{
vsi->irq_handler = irq_handler;
}
/**
* i40e_rx_is_programming_status - check for programming status descriptor
* @qw: the first quad word of the program status descriptor
*
* The value of in the descriptor length field indicate if this
* is a programming status descriptor for flow director or FCoE
* by the value of I40E_RX_PROG_STATUS_DESC_LENGTH, otherwise
* it is a packet descriptor.
**/
static inline bool i40e_rx_is_programming_status(u64 qw)
{
return I40E_RX_PROG_STATUS_DESC_LENGTH ==
(qw >> I40E_RX_PROG_STATUS_DESC_LENGTH_SHIFT);
}
/* needed by i40e_ethtool.c */
int i40e_up(struct i40e_vsi *vsi);
void i40e_down(struct i40e_vsi *vsi);
extern const char i40e_driver_name[];
extern const char i40e_driver_version_str[];
void i40e_do_reset_safe(struct i40e_pf *pf, u32 reset_flags);
void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags);
void i40e_update_stats(struct i40e_vsi *vsi);
void i40e_update_eth_stats(struct i40e_vsi *vsi);
struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi);
int i40e_fetch_switch_configuration(struct i40e_pf *pf,
bool printconfig);
/* needed by i40e_main.c */
void i40e_add_fdir_filter(struct i40e_fdir_data fdir_data,
struct i40e_ring *tx_ring);
void i40e_add_remove_filter(struct i40e_fdir_data fdir_data,
struct i40e_ring *tx_ring);
void i40e_update_fdir_filter(struct i40e_fdir_data fdir_data,
struct i40e_ring *tx_ring);
int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
struct i40e_pf *pf, bool add);
void i40e_set_ethtool_ops(struct net_device *netdev);
struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
u8 *macaddr, s16 vlan,
bool is_vf, bool is_netdev);
void i40e_del_filter(struct i40e_vsi *vsi, u8 *macaddr, s16 vlan,
bool is_vf, bool is_netdev);
int i40e_sync_vsi_filters(struct i40e_vsi *vsi);
struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
u16 uplink, u32 param1);
int i40e_vsi_release(struct i40e_vsi *vsi);
struct i40e_vsi *i40e_vsi_lookup(struct i40e_pf *pf, enum i40e_vsi_type type,
struct i40e_vsi *start_vsi);
int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count);
struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, u16 uplink_seid,
u16 downlink_seid, u8 enabled_tc);
void i40e_veb_release(struct i40e_veb *veb);
i40e_status i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid);
void i40e_vsi_remove_pvid(struct i40e_vsi *vsi);
void i40e_vsi_reset_stats(struct i40e_vsi *vsi);
void i40e_pf_reset_stats(struct i40e_pf *pf);
#ifdef CONFIG_DEBUG_FS
void i40e_dbg_pf_init(struct i40e_pf *pf);
void i40e_dbg_pf_exit(struct i40e_pf *pf);
void i40e_dbg_init(void);
void i40e_dbg_exit(void);
#else
static inline void i40e_dbg_pf_init(struct i40e_pf *pf) {}
static inline void i40e_dbg_pf_exit(struct i40e_pf *pf) {}
static inline void i40e_dbg_init(void) {}
static inline void i40e_dbg_exit(void) {}
#endif /* CONFIG_DEBUG_FS*/
void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector);
void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf);
int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
void i40e_vlan_stripping_disable(struct i40e_vsi *vsi);
int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid);
int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid);
struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, u8 *macaddr,
bool is_vf, bool is_netdev);
bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi);
struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr,
bool is_vf, bool is_netdev);
void i40e_vlan_stripping_enable(struct i40e_vsi *vsi);
#endif /* _I40E_H_ */
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