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Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue 

Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2017-04-19

This series contains updates to i40e and i40evf only, most notable being
the addition of trace points for BPF programs.

Tobias Klauser updates i40evf to use net_device stats struct instead
of a local private copy.

Preethi updates the VF driver to not enable receive checksum offload by
default for tunneled packets.

Alex fixes an issue he introduced when he converted the code over to
using the length field to determine if a descriptor was done or not.

Mitch adds the ability to dump additional information on the VFs, which
is not available through 'ip link show' using debugfs.

Scott adds trace points to the drivers so that BPF programs can be
attached for feature testing and verification.

Jingjing adds admin queue functions for Pipeline Personalization Profile
commands.

Jake does most of the heavy lifting in this series, starting with the
a reduction in the scope of the RTNL lock being held while resetting VFs
to allow multiple PFs to reset in a timely manner.  Factored out the
direct queue modification so that we are able to re-use the code.
Reduced the wait time for admin queue commands to complete, since we were
waiting a minimum of a millisecond, when in practice the admin queue
command is processed often much faster.  Cleaned up code (flag) we never
use.  Make the code to resetting all the VFs optimized for parallel
computing instead of the current way is a serialized fashion, to help
reduce the time it takes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2017-04-21 14:13:11 -04:00
parent 76bb5db5c7 3480756f2c
commit 072cec7797
27 changed files with 1625 additions and 187 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/intel/i40e/Makefile
View File

@ -28,6 +28,9 @@
# Makefile for the Intel(R) Ethernet Connection XL710 (i40e.ko) driver
#
ccflags-y += -I$(src)
subdir-ccflags-y += -I$(src)
obj-$(CONFIG_I40E) += i40e.o
i40e-objs := i40e_main.o \

19
drivers/net/ethernet/intel/i40e/i40e.h
View File

@ -145,7 +145,7 @@ enum i40e_state_t {
__I40E_DOWN_REQUESTED,
__I40E_FD_FLUSH_REQUESTED,
__I40E_RESET_FAILED,
__I40E_PORT_TX_SUSPENDED,
__I40E_PORT_SUSPENDED,
__I40E_VF_DISABLE,
};
@ -762,21 +762,6 @@ static inline void i40e_vsi_setup_irqhandler(struct i40e_vsi *vsi,
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);
}
/**
* i40e_get_fd_cnt_all - get the total FD filter space available
* @pf: pointer to the PF struct
@ -883,6 +868,8 @@ void i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id,
int i40e_vsi_start_rings(struct i40e_vsi *vsi);
void i40e_vsi_stop_rings(struct i40e_vsi *vsi);
void i40e_vsi_stop_rings_no_wait(struct i40e_vsi *vsi);
int i40e_vsi_wait_queues_disabled(struct i40e_vsi *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);

4
drivers/net/ethernet/intel/i40e/i40e_adminq.c
View File

@ -850,8 +850,8 @@ i40e_status i40e_asq_send_command(struct i40e_hw *hw,
*/
if (i40e_asq_done(hw))
break;
usleep_range(1000, 2000);
total_delay++;
udelay(50);
total_delay += 50;
} while (total_delay < hw->aq.asq_cmd_timeout);
}

2
drivers/net/ethernet/intel/i40e/i40e_adminq.h
View File

@ -151,7 +151,7 @@ static inline int i40e_aq_rc_to_posix(int aq_ret, int aq_rc)
/* general information */
#define I40E_AQ_LARGE_BUF 512
#define I40E_ASQ_CMD_TIMEOUT 250 /* msecs */
#define I40E_ASQ_CMD_TIMEOUT 250000 /* usecs */
void i40e_fill_default_direct_cmd_desc(struct i40e_aq_desc *desc,
u16 opcode);

34
drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h
View File

@ -190,6 +190,10 @@ enum i40e_admin_queue_opc {
i40e_aqc_opc_add_mirror_rule = 0x0260,
i40e_aqc_opc_delete_mirror_rule = 0x0261,
/* Pipeline Personalization Profile */
i40e_aqc_opc_write_personalization_profile = 0x0270,
i40e_aqc_opc_get_personalization_profile_list = 0x0271,
/* DCB commands */
i40e_aqc_opc_dcb_ignore_pfc = 0x0301,
i40e_aqc_opc_dcb_updated = 0x0302,
@ -1431,6 +1435,36 @@ struct i40e_aqc_add_delete_mirror_rule_completion {
I40E_CHECK_CMD_LENGTH(i40e_aqc_add_delete_mirror_rule_completion);
/* Pipeline Personalization Profile */
struct i40e_aqc_write_personalization_profile {
u8 flags;
u8 reserved[3];
__le32 profile_track_id;
__le32 addr_high;
__le32 addr_low;
};
I40E_CHECK_CMD_LENGTH(i40e_aqc_write_personalization_profile);
struct i40e_aqc_write_ppp_resp {
__le32 error_offset;
__le32 error_info;
__le32 addr_high;
__le32 addr_low;
};
struct i40e_aqc_get_applied_profiles {
u8 flags;
#define I40E_AQC_GET_PPP_GET_CONF 0x1
#define I40E_AQC_GET_PPP_GET_RDPU_CONF 0x2
u8 rsv[3];
__le32 reserved;
__le32 addr_high;
__le32 addr_low;
};
I40E_CHECK_CMD_LENGTH(i40e_aqc_get_applied_profiles);
/* DCB 0x03xx*/
/* PFC Ignore (direct 0x0301)

212
drivers/net/ethernet/intel/i40e/i40e_common.c
View File

@ -5042,3 +5042,215 @@ void i40e_write_rx_ctl(struct i40e_hw *hw, u32 reg_addr, u32 reg_val)
if (status || use_register)
wr32(hw, reg_addr, reg_val);
}
/**
* i40e_aq_write_ppp - Write pipeline personalization profile (ppp)
* @hw: pointer to the hw struct
* @buff: command buffer (size in bytes = buff_size)
* @buff_size: buffer size in bytes
* @track_id: package tracking id
* @error_offset: returns error offset
* @error_info: returns error information
* @cmd_details: pointer to command details structure or NULL
**/
enum
i40e_status_code i40e_aq_write_ppp(struct i40e_hw *hw, void *buff,
u16 buff_size, u32 track_id,
u32 *error_offset, u32 *error_info,
struct i40e_asq_cmd_details *cmd_details)
{
struct i40e_aq_desc desc;
struct i40e_aqc_write_personalization_profile *cmd =
(struct i40e_aqc_write_personalization_profile *)
&desc.params.raw;
struct i40e_aqc_write_ppp_resp *resp;
i40e_status status;
i40e_fill_default_direct_cmd_desc(&desc,
i40e_aqc_opc_write_personalization_profile);
desc.flags |= cpu_to_le16(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD);
if (buff_size > I40E_AQ_LARGE_BUF)
desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_LB);
desc.datalen = cpu_to_le16(buff_size);
cmd->profile_track_id = cpu_to_le32(track_id);
status = i40e_asq_send_command(hw, &desc, buff, buff_size, cmd_details);
if (!status) {
resp = (struct i40e_aqc_write_ppp_resp *)&desc.params.raw;
if (error_offset)
*error_offset = le32_to_cpu(resp->error_offset);
if (error_info)
*error_info = le32_to_cpu(resp->error_info);
}
return status;
}
/**
* i40e_aq_get_ppp_list - Read pipeline personalization profile (ppp)
* @hw: pointer to the hw struct
* @buff: command buffer (size in bytes = buff_size)
* @buff_size: buffer size in bytes
* @cmd_details: pointer to command details structure or NULL
**/
enum
i40e_status_code i40e_aq_get_ppp_list(struct i40e_hw *hw, void *buff,
u16 buff_size, u8 flags,
struct i40e_asq_cmd_details *cmd_details)
{
struct i40e_aq_desc desc;
struct i40e_aqc_get_applied_profiles *cmd =
(struct i40e_aqc_get_applied_profiles *)&desc.params.raw;
i40e_status status;
i40e_fill_default_direct_cmd_desc(&desc,
i40e_aqc_opc_get_personalization_profile_list);
desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
if (buff_size > I40E_AQ_LARGE_BUF)
desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_LB);
desc.datalen = cpu_to_le16(buff_size);
cmd->flags = flags;
status = i40e_asq_send_command(hw, &desc, buff, buff_size, cmd_details);
return status;
}
/**
* i40e_find_segment_in_package
* @segment_type: the segment type to search for (i.e., SEGMENT_TYPE_I40E)
* @pkg_hdr: pointer to the package header to be searched
*
* This function searches a package file for a particular segment type. On
* success it returns a pointer to the segment header, otherwise it will
* return NULL.
**/
struct i40e_generic_seg_header *
i40e_find_segment_in_package(u32 segment_type,
struct i40e_package_header *pkg_hdr)
{
struct i40e_generic_seg_header *segment;
u32 i;
/* Search all package segments for the requested segment type */
for (i = 0; i < pkg_hdr->segment_count; i++) {
segment =
(struct i40e_generic_seg_header *)((u8 *)pkg_hdr +
pkg_hdr->segment_offset[i]);
if (segment->type == segment_type)
return segment;
}
return NULL;
}
/**
* i40e_write_profile
* @hw: pointer to the hardware structure
* @profile: pointer to the profile segment of the package to be downloaded
* @track_id: package tracking id
*
* Handles the download of a complete package.
*/
enum i40e_status_code
i40e_write_profile(struct i40e_hw *hw, struct i40e_profile_segment *profile,
u32 track_id)
{
i40e_status status = 0;
struct i40e_section_table *sec_tbl;
struct i40e_profile_section_header *sec = NULL;
u32 dev_cnt;
u32 vendor_dev_id;
u32 *nvm;
u32 section_size = 0;
u32 offset = 0, info = 0;
u32 i;
if (!track_id) {
i40e_debug(hw, I40E_DEBUG_PACKAGE, "Track_id can't be 0.");
return I40E_NOT_SUPPORTED;
}
dev_cnt = profile->device_table_count;
for (i = 0; i < dev_cnt; i++) {
vendor_dev_id = profile->device_table[i].vendor_dev_id;
if ((vendor_dev_id >> 16) == PCI_VENDOR_ID_INTEL)
if (hw->device_id == (vendor_dev_id & 0xFFFF))
break;
}
if (i == dev_cnt) {
i40e_debug(hw, I40E_DEBUG_PACKAGE, "Device doesn't support PPP");
return I40E_ERR_DEVICE_NOT_SUPPORTED;
}
nvm = (u32 *)&profile->device_table[dev_cnt];
sec_tbl = (struct i40e_section_table *)&nvm[nvm[0] + 1];
for (i = 0; i < sec_tbl->section_count; i++) {
sec = (struct i40e_profile_section_header *)((u8 *)profile +
sec_tbl->section_offset[i]);
/* Skip 'AQ', 'note' and 'name' sections */
if (sec->section.type != SECTION_TYPE_MMIO)
continue;
section_size = sec->section.size +
sizeof(struct i40e_profile_section_header);
/* Write profile */
status = i40e_aq_write_ppp(hw, (void *)sec, (u16)section_size,
track_id, &offset, &info, NULL);
if (status) {
i40e_debug(hw, I40E_DEBUG_PACKAGE,
"Failed to write profile: offset %d, info %d",
offset, info);
break;
}
}
return status;
}
/**
* i40e_add_pinfo_to_list
* @hw: pointer to the hardware structure
* @profile: pointer to the profile segment of the package
* @profile_info_sec: buffer for information section
* @track_id: package tracking id
*
* Register a profile to the list of loaded profiles.
*/
enum i40e_status_code
i40e_add_pinfo_to_list(struct i40e_hw *hw,
struct i40e_profile_segment *profile,
u8 *profile_info_sec, u32 track_id)
{
i40e_status status = 0;
struct i40e_profile_section_header *sec = NULL;
struct i40e_profile_info *pinfo;
u32 offset = 0, info = 0;
sec = (struct i40e_profile_section_header *)profile_info_sec;
sec->tbl_size = 1;
sec->data_end = sizeof(struct i40e_profile_section_header) +
sizeof(struct i40e_profile_info);
sec->section.type = SECTION_TYPE_INFO;
sec->section.offset = sizeof(struct i40e_profile_section_header);
sec->section.size = sizeof(struct i40e_profile_info);
pinfo = (struct i40e_profile_info *)(profile_info_sec +
sec->section.offset);
pinfo->track_id = track_id;
pinfo->version = profile->version;
pinfo->op = I40E_PPP_ADD_TRACKID;
memcpy(pinfo->name, profile->name, I40E_PPP_NAME_SIZE);
status = i40e_aq_write_ppp(hw, (void *)sec, sec->data_end,
track_id, &offset, &info, NULL);
return status;
}

51
drivers/net/ethernet/intel/i40e/i40e_debugfs.c
View File

@ -384,6 +384,8 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
" base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
dev_info(&pf->pdev->dev, " type = %i\n", vsi->type);
if (vsi->type == I40E_VSI_SRIOV)
dev_info(&pf->pdev->dev, " VF ID = %i\n", vsi->vf_id);
dev_info(&pf->pdev->dev,
" info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
vsi->info.valid_sections, vsi->info.switch_id);
@ -694,6 +696,47 @@ static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
}
}
/**
* i40e_dbg_dump_vf - dump VF info
* @pf: the i40e_pf created in command write
* @vf_id: the vf_id from the user
**/
static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
{
struct i40e_vf *vf;
struct i40e_vsi *vsi;
if (!pf->num_alloc_vfs) {
dev_info(&pf->pdev->dev, "no VFs allocated\n");
} else if ((vf_id >= 0) && (vf_id < pf->num_alloc_vfs)) {
vf = &pf->vf[vf_id];
vsi = pf->vsi[vf->lan_vsi_idx];
dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
dev_info(&pf->pdev->dev, " num MDD=%lld, invalid msg=%lld, valid msg=%lld\n",
vf->num_mdd_events,
vf->num_invalid_msgs,
vf->num_valid_msgs);
} else {
dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
}
}
/**
* i40e_dbg_dump_vf_all - dump VF info for all VFs
* @pf: the i40e_pf created in command write
**/
static void i40e_dbg_dump_vf_all(struct i40e_pf *pf)
{
int i;
if (!pf->num_alloc_vfs)
dev_info(&pf->pdev->dev, "no VFs enabled!\n");
else
for (i = 0; i < pf->num_alloc_vfs; i++)
i40e_dbg_dump_vf(pf, i);
}
#define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
/**
* i40e_dbg_command_write - write into command datum
@ -712,6 +755,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
struct i40e_vsi *vsi;
int vsi_seid;
int veb_seid;
int vf_id;
int cnt;
/* don't allow partial writes */
@ -914,6 +958,12 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
i40e_dbg_dump_veb_seid(pf, vsi_seid);
else
i40e_dbg_dump_veb_all(pf);
} else if (strncmp(&cmd_buf[5], "vf", 2) == 0) {
cnt = sscanf(&cmd_buf[7], "%i", &vf_id);
if (cnt > 0)
i40e_dbg_dump_vf(pf, vf_id);
else
i40e_dbg_dump_vf_all(pf);
} else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
int ring_id, desc_n;
if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
@ -1109,6 +1159,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
dev_info(&pf->pdev->dev, "dump reset stats\n");
dev_info(&pf->pdev->dev, "dump port\n");
dev_info(&pf->pdev->dev, "dump vf [vf_id]\n");
dev_info(&pf->pdev->dev,
"dump debug fwdata <cluster_id> <table_id> <index>\n");
}

38
drivers/net/ethernet/intel/i40e/i40e_ethtool.c
View File

@ -698,6 +698,7 @@ static int i40e_set_link_ksettings(struct net_device *netdev,
struct ethtool_link_ksettings copy_cmd;
i40e_status status = 0;
bool change = false;
int timeout = 50;
int err = 0;
u32 autoneg;
u32 advertise;
@ -756,14 +757,20 @@ static int i40e_set_link_ksettings(struct net_device *netdev,
if (memcmp(&copy_cmd, &safe_cmd, sizeof(struct ethtool_link_ksettings)))
return -EOPNOTSUPP;
while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state)) {
timeout--;
if (!timeout)
return -EBUSY;
usleep_range(1000, 2000);
}
/* Get the current phy config */
status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
NULL);
if (status)
return -EAGAIN;
if (status) {
err = -EAGAIN;
goto done;
}
/* Copy abilities to config in case autoneg is not
* set below
@ -779,7 +786,8 @@ static int i40e_set_link_ksettings(struct net_device *netdev,
if (!ethtool_link_ksettings_test_link_mode(
&safe_cmd, supported, Autoneg)) {
netdev_info(netdev, "Autoneg not supported on this phy\n");
return -EINVAL;
err = -EINVAL;
goto done;
}
/* Autoneg is allowed to change */
config.abilities = abilities.abilities |
@ -797,7 +805,8 @@ static int i40e_set_link_ksettings(struct net_device *netdev,
hw->phy.link_info.phy_type !=
I40E_PHY_TYPE_10GBASE_T) {
netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
return -EINVAL;
err = -EINVAL;
goto done;
}
/* Autoneg is allowed to change */
config.abilities = abilities.abilities &
@ -808,8 +817,10 @@ static int i40e_set_link_ksettings(struct net_device *netdev,
ethtool_convert_link_mode_to_legacy_u32(&tmp,
safe_cmd.link_modes.supported);
if (advertise & ~tmp)
return -EINVAL;
if (advertise & ~tmp) {
err = -EINVAL;
goto done;
}
if (advertise & ADVERTISED_100baseT_Full)
config.link_speed |= I40E_LINK_SPEED_100MB;
@ -865,7 +876,8 @@ static int i40e_set_link_ksettings(struct net_device *netdev,
netdev_info(netdev, "Set phy config failed, err %s aq_err %s\n",
i40e_stat_str(hw, status),
i40e_aq_str(hw, hw->aq.asq_last_status));
return -EAGAIN;
err = -EAGAIN;
goto done;
}
status = i40e_update_link_info(hw);
@ -878,6 +890,9 @@ static int i40e_set_link_ksettings(struct net_device *netdev,
netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
}
done:
clear_bit(__I40E_CONFIG_BUSY, &pf->state);
return err;
}
@ -1292,6 +1307,7 @@ static int i40e_set_ringparam(struct net_device *netdev,
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
u32 new_rx_count, new_tx_count;
int timeout = 50;
int i, err = 0;
if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
@ -1316,8 +1332,12 @@ static int i40e_set_ringparam(struct net_device *netdev,
(new_rx_count == vsi->rx_rings[0]->count))
return 0;
while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state)) {
timeout--;
if (!timeout)
return -EBUSY;
usleep_range(1000, 2000);
}
if (!netif_running(vsi->netdev)) {
/* simple case - set for the next time the netdev is started */

200
drivers/net/ethernet/intel/i40e/i40e_main.c
View File

@ -32,6 +32,12 @@
#include "i40e.h"
#include "i40e_diag.h"
#include <net/udp_tunnel.h>
/* All i40e tracepoints are defined by the include below, which
* must be included exactly once across the whole kernel with
* CREATE_TRACE_POINTS defined
*/
#define CREATE_TRACE_POINTS
#include "i40e_trace.h"
const char i40e_driver_name[] = "i40e";
static const char i40e_driver_string[] =
@ -3913,6 +3919,8 @@ static void i40e_netpoll(struct net_device *netdev)
}
#endif
#define I40E_QTX_ENA_WAIT_COUNT 50
/**
* i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
* @pf: the PF being configured
@ -3942,6 +3950,50 @@ static int i40e_pf_txq_wait(struct i40e_pf *pf, int pf_q, bool enable)
return 0;
}
/**
* i40e_control_tx_q - Start or stop a particular Tx queue
* @pf: the PF structure
* @pf_q: the PF queue to configure
* @enable: start or stop the queue
*
* This function enables or disables a single queue. Note that any delay
* required after the operation is expected to be handled by the caller of
* this function.
**/
static void i40e_control_tx_q(struct i40e_pf *pf, int pf_q, bool enable)
{
struct i40e_hw *hw = &pf->hw;
u32 tx_reg;
int i;
/* warn the TX unit of coming changes */
i40e_pre_tx_queue_cfg(&pf->hw, pf_q, enable);
if (!enable)
usleep_range(10, 20);
for (i = 0; i < I40E_QTX_ENA_WAIT_COUNT; i++) {
tx_reg = rd32(hw, I40E_QTX_ENA(pf_q));
if (((tx_reg >> I40E_QTX_ENA_QENA_REQ_SHIFT) & 1) ==
((tx_reg >> I40E_QTX_ENA_QENA_STAT_SHIFT) & 1))
break;
usleep_range(1000, 2000);
}
/* Skip if the queue is already in the requested state */
if (enable == !!(tx_reg & I40E_QTX_ENA_QENA_STAT_MASK))
return;
/* turn on/off the queue */
if (enable) {
wr32(hw, I40E_QTX_HEAD(pf_q), 0);
tx_reg |= I40E_QTX_ENA_QENA_REQ_MASK;
} else {
tx_reg &= ~I40E_QTX_ENA_QENA_REQ_MASK;
}
wr32(hw, I40E_QTX_ENA(pf_q), tx_reg);
}
/**
* i40e_vsi_control_tx - Start or stop a VSI's rings
* @vsi: the VSI being configured
@ -3950,41 +4002,11 @@ static int i40e_pf_txq_wait(struct i40e_pf *pf, int pf_q, bool enable)
static int i40e_vsi_control_tx(struct i40e_vsi *vsi, bool enable)
{
struct i40e_pf *pf = vsi->back;
struct i40e_hw *hw = &pf->hw;
int i, j, pf_q, ret = 0;
u32 tx_reg;
int i, pf_q, ret = 0;
pf_q = vsi->base_queue;
for (i = 0; i < vsi->num_queue_pairs; i++, pf_q++) {
/* warn the TX unit of coming changes */
i40e_pre_tx_queue_cfg(&pf->hw, pf_q, enable);
if (!enable)
usleep_range(10, 20);
for (j = 0; j < 50; j++) {
tx_reg = rd32(hw, I40E_QTX_ENA(pf_q));
if (((tx_reg >> I40E_QTX_ENA_QENA_REQ_SHIFT) & 1) ==
((tx_reg >> I40E_QTX_ENA_QENA_STAT_SHIFT) & 1))
break;
usleep_range(1000, 2000);
}
/* Skip if the queue is already in the requested state */
if (enable == !!(tx_reg & I40E_QTX_ENA_QENA_STAT_MASK))
continue;
/* turn on/off the queue */
if (enable) {
wr32(hw, I40E_QTX_HEAD(pf_q), 0);
tx_reg |= I40E_QTX_ENA_QENA_REQ_MASK;
} else {
tx_reg &= ~I40E_QTX_ENA_QENA_REQ_MASK;
}
wr32(hw, I40E_QTX_ENA(pf_q), tx_reg);
/* No waiting for the Tx queue to disable */
if (!enable && test_bit(__I40E_PORT_TX_SUSPENDED, &pf->state))
continue;
i40e_control_tx_q(pf, pf_q, enable);
/* wait for the change to finish */
ret = i40e_pf_txq_wait(pf, pf_q, enable);
@ -4028,6 +4050,43 @@ static int i40e_pf_rxq_wait(struct i40e_pf *pf, int pf_q, bool enable)
return 0;
}
/**
* i40e_control_rx_q - Start or stop a particular Rx queue
* @pf: the PF structure
* @pf_q: the PF queue to configure
* @enable: start or stop the queue
*
* This function enables or disables a single queue. Note that any delay
* required after the operation is expected to be handled by the caller of
* this function.
**/
static void i40e_control_rx_q(struct i40e_pf *pf, int pf_q, bool enable)
{
struct i40e_hw *hw = &pf->hw;
u32 rx_reg;
int i;
for (i = 0; i < I40E_QTX_ENA_WAIT_COUNT; i++) {
rx_reg = rd32(hw, I40E_QRX_ENA(pf_q));
if (((rx_reg >> I40E_QRX_ENA_QENA_REQ_SHIFT) & 1) ==
((rx_reg >> I40E_QRX_ENA_QENA_STAT_SHIFT) & 1))
break;
usleep_range(1000, 2000);
}
/* Skip if the queue is already in the requested state */
if (enable == !!(rx_reg & I40E_QRX_ENA_QENA_STAT_MASK))
return;
/* turn on/off the queue */
if (enable)
rx_reg |= I40E_QRX_ENA_QENA_REQ_MASK;
else
rx_reg &= ~I40E_QRX_ENA_QENA_REQ_MASK;
wr32(hw, I40E_QRX_ENA(pf_q), rx_reg);
}
/**
* i40e_vsi_control_rx - Start or stop a VSI's rings
* @vsi: the VSI being configured
@ -4036,33 +4095,11 @@ static int i40e_pf_rxq_wait(struct i40e_pf *pf, int pf_q, bool enable)
static int i40e_vsi_control_rx(struct i40e_vsi *vsi, bool enable)
{
struct i40e_pf *pf = vsi->back;
struct i40e_hw *hw = &pf->hw;
int i, j, pf_q, ret = 0;
u32 rx_reg;
int i, pf_q, ret = 0;
pf_q = vsi->base_queue;
for (i = 0; i < vsi->num_queue_pairs; i++, pf_q++) {
for (j = 0; j < 50; j++) {
rx_reg = rd32(hw, I40E_QRX_ENA(pf_q));
if (((rx_reg >> I40E_QRX_ENA_QENA_REQ_SHIFT) & 1) ==
((rx_reg >> I40E_QRX_ENA_QENA_STAT_SHIFT) & 1))
break;
usleep_range(1000, 2000);
}
/* Skip if the queue is already in the requested state */
if (enable == !!(rx_reg & I40E_QRX_ENA_QENA_STAT_MASK))
continue;
/* turn on/off the queue */
if (enable)
rx_reg |= I40E_QRX_ENA_QENA_REQ_MASK;
else
rx_reg &= ~I40E_QRX_ENA_QENA_REQ_MASK;
wr32(hw, I40E_QRX_ENA(pf_q), rx_reg);
/* No waiting for the Tx queue to disable */
if (!enable && test_bit(__I40E_PORT_TX_SUSPENDED, &pf->state))
continue;
i40e_control_rx_q(pf, pf_q, enable);
/* wait for the change to finish */
ret = i40e_pf_rxq_wait(pf, pf_q, enable);
@ -4106,6 +4143,10 @@ int i40e_vsi_start_rings(struct i40e_vsi *vsi)
**/
void i40e_vsi_stop_rings(struct i40e_vsi *vsi)
{
/* When port TX is suspended, don't wait */
if (test_bit(__I40E_PORT_SUSPENDED, &vsi->back->state))
return i40e_vsi_stop_rings_no_wait(vsi);
/* do rx first for enable and last for disable
* Ignore return value, we need to shutdown whatever we can
*/
@ -4113,6 +4154,29 @@ void i40e_vsi_stop_rings(struct i40e_vsi *vsi)
i40e_vsi_control_rx(vsi, false);
}
/**
* i40e_vsi_stop_rings_no_wait - Stop a VSI's rings and do not delay
* @vsi: the VSI being shutdown
*
* This function stops all the rings for a VSI but does not delay to verify
* that rings have been disabled. It is expected that the caller is shutting
* down multiple VSIs at once and will delay together for all the VSIs after
* initiating the shutdown. This is particularly useful for shutting down lots
* of VFs together. Otherwise, a large delay can be incurred while configuring
* each VSI in serial.
**/
void i40e_vsi_stop_rings_no_wait(struct i40e_vsi *vsi)
{
struct i40e_pf *pf = vsi->back;
int i, pf_q;
pf_q = vsi->base_queue;
for (i = 0; i < vsi->num_queue_pairs; i++, pf_q++) {
i40e_control_tx_q(pf, pf_q, false);
i40e_control_rx_q(pf, pf_q, false);
}
}
/**
* i40e_vsi_free_irq - Free the irq association with the OS
* @vsi: the VSI being configured
@ -4443,14 +4507,13 @@ static void i40e_pf_unquiesce_all_vsi(struct i40e_pf *pf)
}
}
#ifdef CONFIG_I40E_DCB
/**
* i40e_vsi_wait_queues_disabled - Wait for VSI's queues to be disabled
* @vsi: the VSI being configured
*
* Wait until all queues on a given VSI have been disabled.
**/
static int i40e_vsi_wait_queues_disabled(struct i40e_vsi *vsi)
int i40e_vsi_wait_queues_disabled(struct i40e_vsi *vsi)
{
struct i40e_pf *pf = vsi->back;
int i, pf_q, ret;
@ -4478,6 +4541,7 @@ static int i40e_vsi_wait_queues_disabled(struct i40e_vsi *vsi)
return 0;
}
#ifdef CONFIG_I40E_DCB
/**
* i40e_pf_wait_queues_disabled - Wait for all queues of PF VSIs to be disabled
* @pf: the PF
@ -5880,7 +5944,7 @@ static int i40e_handle_lldp_event(struct i40e_pf *pf,
else
pf->flags &= ~I40E_FLAG_DCB_ENABLED;
set_bit(__I40E_PORT_TX_SUSPENDED, &pf->state);
set_bit(__I40E_PORT_SUSPENDED, &pf->state);
/* Reconfiguration needed quiesce all VSIs */
i40e_pf_quiesce_all_vsi(pf);
@ -5889,7 +5953,7 @@ static int i40e_handle_lldp_event(struct i40e_pf *pf,
ret = i40e_resume_port_tx(pf);
clear_bit(__I40E_PORT_TX_SUSPENDED, &pf->state);
clear_bit(__I40E_PORT_SUSPENDED, &pf->state);
/* In case of error no point in resuming VSIs */
if (ret)
goto exit;
@ -7102,17 +7166,21 @@ static void i40e_rebuild(struct i40e_pf *pf, bool reinit, bool lock_acquired)
/* restart the VSIs that were rebuilt and running before the reset */
i40e_pf_unquiesce_all_vsi(pf);
if (pf->num_alloc_vfs) {
for (v = 0; v < pf->num_alloc_vfs; v++)
i40e_reset_vf(&pf->vf[v], true);
}
/* Release the RTNL lock before we start resetting VFs */
if (!lock_acquired)
rtnl_unlock();
i40e_reset_all_vfs(pf, true);
/* tell the firmware that we're starting */
i40e_send_version(pf);
/* We've already released the lock, so don't do it again */
goto end_core_reset;
end_unlock:
if (!lock_acquired)
rtnl_unlock();
if (!lock_acquired)
rtnl_unlock();
end_core_reset:
clear_bit(__I40E_RESET_FAILED, &pf->state);
clear_recovery:

17
drivers/net/ethernet/intel/i40e/i40e_prototype.h
View File

@ -377,4 +377,21 @@ i40e_status i40e_write_phy_register(struct i40e_hw *hw, u8 page, u16 reg,
u8 i40e_get_phy_address(struct i40e_hw *hw, u8 dev_num);
i40e_status i40e_blink_phy_link_led(struct i40e_hw *hw,
u32 time, u32 interval);
i40e_status i40e_aq_write_ppp(struct i40e_hw *hw, void *buff,
u16 buff_size, u32 track_id,
u32 *error_offset, u32 *error_info,
struct i40e_asq_cmd_details *cmd_details);
i40e_status i40e_aq_get_ppp_list(struct i40e_hw *hw, void *buff,
u16 buff_size, u8 flags,
struct i40e_asq_cmd_details *cmd_details);
struct i40e_generic_seg_header *
i40e_find_segment_in_package(u32 segment_type,
struct i40e_package_header *pkg_header);
enum i40e_status_code
i40e_write_profile(struct i40e_hw *hw, struct i40e_profile_segment *i40e_seg,
u32 track_id);
enum i40e_status_code
i40e_add_pinfo_to_list(struct i40e_hw *hw,
struct i40e_profile_segment *profile,
u8 *profile_info_sec, u32 track_id);
#endif /* _I40E_PROTOTYPE_H_ */

229
drivers/net/ethernet/intel/i40e/i40e_trace.h Normal file
View File

@ -0,0 +1,229 @@
/*******************************************************************************
*
* Intel(R) 40-10 Gigabit Ethernet Connection Network Driver
* Copyright(c) 2013 - 2017 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.
*
* 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
*
******************************************************************************/
/* Modeled on trace-events-sample.h */
/* The trace subsystem name for i40e will be "i40e".
*
* This file is named i40e_trace.h.
*
* Since this include file's name is different from the trace
* subsystem name, we'll have to define TRACE_INCLUDE_FILE at the end
* of this file.
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM i40e
/* See trace-events-sample.h for a detailed description of why this
* guard clause is different from most normal include files.
*/
#if !defined(_I40E_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
#define _I40E_TRACE_H_
#include <linux/tracepoint.h>
/**
* i40e_trace() macro enables shared code to refer to trace points
* like:
*
* trace_i40e{,vf}_example(args...)
*
* ... as:
*
* i40e_trace(example, args...)
*
* ... to resolve to the PF or VF version of the tracepoint without
* ifdefs, and to allow tracepoints to be disabled entirely at build
* time.
*
* Trace point should always be referred to in the driver via this
* macro.
*
* Similarly, i40e_trace_enabled(trace_name) wraps references to
* trace_i40e{,vf}_<trace_name>_enabled() functions.
*/
#define _I40E_TRACE_NAME(trace_name) (trace_ ## i40e ## _ ## trace_name)
#define I40E_TRACE_NAME(trace_name) _I40E_TRACE_NAME(trace_name)
#define i40e_trace(trace_name, args...) I40E_TRACE_NAME(trace_name)(args)
#define i40e_trace_enabled(trace_name) I40E_TRACE_NAME(trace_name##_enabled)()
/* Events common to PF and VF. Corresponding versions will be defined
* for both, named trace_i40e_* and trace_i40evf_*. The i40e_trace()
* macro above will select the right trace point name for the driver
* being built from shared code.
*/
/* Events related to a vsi & ring */
DECLARE_EVENT_CLASS(
i40e_tx_template,
TP_PROTO(struct i40e_ring *ring,
struct i40e_tx_desc *desc,
struct i40e_tx_buffer *buf),
TP_ARGS(ring, desc, buf),
/* The convention here is to make the first fields in the
* TP_STRUCT match the TP_PROTO exactly. This enables the use
* of the args struct generated by the tplist tool (from the
* bcc-tools package) to be used for those fields. To access
* fields other than the tracepoint args will require the
* tplist output to be adjusted.
*/
TP_STRUCT__entry(
__field(void*, ring)
__field(void*, desc)
__field(void*, buf)
__string(devname, ring->netdev->name)
),
TP_fast_assign(
__entry->ring = ring;
__entry->desc = desc;
__entry->buf = buf;
__assign_str(devname, ring->netdev->name);
),
TP_printk(
"netdev: %s ring: %p desc: %p buf %p",
__get_str(devname), __entry->ring,
__entry->desc, __entry->buf)
);
DEFINE_EVENT(
i40e_tx_template, i40e_clean_tx_irq,
TP_PROTO(struct i40e_ring *ring,
struct i40e_tx_desc *desc,
struct i40e_tx_buffer *buf),
TP_ARGS(ring, desc, buf));
DEFINE_EVENT(
i40e_tx_template, i40e_clean_tx_irq_unmap,
TP_PROTO(struct i40e_ring *ring,
struct i40e_tx_desc *desc,
struct i40e_tx_buffer *buf),
TP_ARGS(ring, desc, buf));
DECLARE_EVENT_CLASS(
i40e_rx_template,
TP_PROTO(struct i40e_ring *ring,
union i40e_32byte_rx_desc *desc,
struct sk_buff *skb),
TP_ARGS(ring, desc, skb),
TP_STRUCT__entry(
__field(void*, ring)
__field(void*, desc)
__field(void*, skb)
__string(devname, ring->netdev->name)
),
TP_fast_assign(
__entry->ring = ring;
__entry->desc = desc;
__entry->skb = skb;
__assign_str(devname, ring->netdev->name);
),
TP_printk(
"netdev: %s ring: %p desc: %p skb %p",
__get_str(devname), __entry->ring,
__entry->desc, __entry->skb)
);
DEFINE_EVENT(
i40e_rx_template, i40e_clean_rx_irq,
TP_PROTO(struct i40e_ring *ring,
union i40e_32byte_rx_desc *desc,
struct sk_buff *skb),
TP_ARGS(ring, desc, skb));
DEFINE_EVENT(
i40e_rx_template, i40e_clean_rx_irq_rx,
TP_PROTO(struct i40e_ring *ring,
union i40e_32byte_rx_desc *desc,
struct sk_buff *skb),
TP_ARGS(ring, desc, skb));
DECLARE_EVENT_CLASS(
i40e_xmit_template,
TP_PROTO(struct sk_buff *skb,
struct i40e_ring *ring),
TP_ARGS(skb, ring),
TP_STRUCT__entry(
__field(void*, skb)
__field(void*, ring)
__string(devname, ring->netdev->name)
),
TP_fast_assign(
__entry->skb = skb;
__entry->ring = ring;
__assign_str(devname, ring->netdev->name);
),
TP_printk(
"netdev: %s skb: %p ring: %p",
__get_str(devname), __entry->skb,
__entry->ring)
);
DEFINE_EVENT(
i40e_xmit_template, i40e_xmit_frame_ring,
TP_PROTO(struct sk_buff *skb,
struct i40e_ring *ring),
TP_ARGS(skb, ring));
DEFINE_EVENT(
i40e_xmit_template, i40e_xmit_frame_ring_drop,
TP_PROTO(struct sk_buff *skb,
struct i40e_ring *ring),
TP_ARGS(skb, ring));
/* Events unique to the PF. */
#endif /* _I40E_TRACE_H_ */
/* This must be outside ifdef _I40E_TRACE_H */
/* This trace include file is not located in the .../include/trace
* with the kernel tracepoint definitions, because we're a loadable
* module.
*/
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE i40e_trace
#include <trace/define_trace.h>

59
drivers/net/ethernet/intel/i40e/i40e_txrx.c
View File

@ -27,6 +27,7 @@
#include <linux/prefetch.h>
#include <net/busy_poll.h>
#include "i40e.h"
#include "i40e_trace.h"
#include "i40e_prototype.h"
static inline __le64 build_ctob(u32 td_cmd, u32 td_offset, unsigned int size,
@ -765,6 +766,7 @@ static bool i40e_clean_tx_irq(struct i40e_vsi *vsi,
/* prevent any other reads prior to eop_desc */
read_barrier_depends();
i40e_trace(clean_tx_irq, tx_ring, tx_desc, tx_buf);
/* we have caught up to head, no work left to do */
if (tx_head == tx_desc)
break;
@ -791,6 +793,8 @@ static bool i40e_clean_tx_irq(struct i40e_vsi *vsi,
/* unmap remaining buffers */
while (tx_desc != eop_desc) {
i40e_trace(clean_tx_irq_unmap,
tx_ring, tx_desc, tx_buf);
tx_buf++;
tx_desc++;
@ -1037,10 +1041,30 @@ static bool i40e_set_new_dynamic_itr(struct i40e_ring_container *rc)
return false;
}
/**
* i40e_rx_is_programming_status - check for programming status descriptor
* @qw: qword representing status_error_len in CPU ordering
*
* 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)
{
/* The Rx filter programming status and SPH bit occupy the same
* spot in the descriptor. Since we don't support packet split we
* can just reuse the bit as an indication that this is a
* programming status descriptor.
*/
return qw & I40E_RXD_QW1_LENGTH_SPH_MASK;
}
/**
* i40e_clean_programming_status - clean the programming status descriptor
* @rx_ring: the rx ring that has this descriptor
* @rx_desc: the rx descriptor written back by HW
* @qw: qword representing status_error_len in CPU ordering
*
* Flow director should handle FD_FILTER_STATUS to check its filter programming
* status being successful or not and take actions accordingly. FCoE should
@ -1048,12 +1072,18 @@ static bool i40e_set_new_dynamic_itr(struct i40e_ring_container *rc)
*
**/
static void i40e_clean_programming_status(struct i40e_ring *rx_ring,
union i40e_rx_desc *rx_desc)
union i40e_rx_desc *rx_desc,
u64 qw)
{
u64 qw;
u32 ntc = rx_ring->next_to_clean + 1;
u8 id;
qw = le64_to_cpu(rx_desc->wb.qword1.status_error_len);
/* fetch, update, and store next to clean */
ntc = (ntc < rx_ring->count) ? ntc : 0;
rx_ring->next_to_clean = ntc;
prefetch(I40E_RX_DESC(rx_ring, ntc));
id = (qw & I40E_RX_PROG_STATUS_DESC_QW1_PROGID_MASK) >>
I40E_RX_PROG_STATUS_DESC_QW1_PROGID_SHIFT;
@ -1911,11 +1941,6 @@ static bool i40e_is_non_eop(struct i40e_ring *rx_ring,
prefetch(I40E_RX_DESC(rx_ring, ntc));
#define staterrlen rx_desc->wb.qword1.status_error_len
if (unlikely(i40e_rx_is_programming_status(le64_to_cpu(staterrlen)))) {
i40e_clean_programming_status(rx_ring, rx_desc);
return true;
}
/* if we are the last buffer then there is nothing else to do */
#define I40E_RXD_EOF BIT(I40E_RX_DESC_STATUS_EOF_SHIFT)
if (likely(i40e_test_staterr(rx_desc, I40E_RXD_EOF)))
@ -1968,10 +1993,6 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
* hardware wrote DD then the length will be non-zero
*/
qword = le64_to_cpu(rx_desc->wb.qword1.status_error_len);
size = (qword & I40E_RXD_QW1_LENGTH_PBUF_MASK) >>
I40E_RXD_QW1_LENGTH_PBUF_SHIFT;
if (!size)
break;
/* This memory barrier is needed to keep us from reading
* any other fields out of the rx_desc until we have
@ -1979,6 +2000,16 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
*/
dma_rmb();
if (unlikely(i40e_rx_is_programming_status(qword))) {
i40e_clean_programming_status(rx_ring, rx_desc, qword);
continue;
}
size = (qword & I40E_RXD_QW1_LENGTH_PBUF_MASK) >>
I40E_RXD_QW1_LENGTH_PBUF_SHIFT;
if (!size)
break;
i40e_trace(clean_rx_irq, rx_ring, rx_desc, skb);
rx_buffer = i40e_get_rx_buffer(rx_ring, size);
/* retrieve a buffer from the ring */
@ -2031,6 +2062,7 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
vlan_tag = (qword & BIT(I40E_RX_DESC_STATUS_L2TAG1P_SHIFT)) ?
le16_to_cpu(rx_desc->wb.qword0.lo_dword.l2tag1) : 0;
i40e_trace(clean_rx_irq_rx, rx_ring, rx_desc, skb);
i40e_receive_skb(rx_ring, skb, vlan_tag);
skb = NULL;
@ -3112,6 +3144,8 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
/* prefetch the data, we'll need it later */
prefetch(skb->data);
i40e_trace(xmit_frame_ring, skb, tx_ring);
count = i40e_xmit_descriptor_count(skb);
if (i40e_chk_linearize(skb, count)) {
if (__skb_linearize(skb)) {
@ -3190,6 +3224,7 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
return NETDEV_TX_OK;
out_drop:
i40e_trace(xmit_frame_ring_drop, first->skb, tx_ring);
dev_kfree_skb_any(first->skb);
first->skb = NULL;
return NETDEV_TX_OK;

80
drivers/net/ethernet/intel/i40e/i40e_type.h
View File

@ -78,6 +78,7 @@ enum i40e_debug_mask {
I40E_DEBUG_DCB = 0x00000400,
I40E_DEBUG_DIAG = 0x00000800,
I40E_DEBUG_FD = 0x00001000,
I40E_DEBUG_PACKAGE = 0x00002000,
I40E_DEBUG_IWARP = 0x00F00000,
I40E_DEBUG_AQ_MESSAGE = 0x01000000,
I40E_DEBUG_AQ_DESCRIPTOR = 0x02000000,
@ -1462,4 +1463,83 @@ struct i40e_lldp_variables {
#define I40E_FLEX_56_MASK (0x1ULL << I40E_FLEX_56_SHIFT)
#define I40E_FLEX_57_SHIFT 6
#define I40E_FLEX_57_MASK (0x1ULL << I40E_FLEX_57_SHIFT)
/* Version format for PPP */
struct i40e_ppp_version {
u8 major;
u8 minor;
u8 update;
u8 draft;
};
#define I40E_PPP_NAME_SIZE 32
/* Package header */
struct i40e_package_header {
struct i40e_ppp_version version;
u32 segment_count;
u32 segment_offset[1];
};
/* Generic segment header */
struct i40e_generic_seg_header {
#define SEGMENT_TYPE_METADATA 0x00000001
#define SEGMENT_TYPE_NOTES 0x00000002
#define SEGMENT_TYPE_I40E 0x00000011
#define SEGMENT_TYPE_X722 0x00000012
u32 type;
struct i40e_ppp_version version;
u32 size;
char name[I40E_PPP_NAME_SIZE];
};
struct i40e_metadata_segment {
struct i40e_generic_seg_header header;
struct i40e_ppp_version version;
u32 track_id;
char name[I40E_PPP_NAME_SIZE];
};
struct i40e_device_id_entry {
u32 vendor_dev_id;
u32 sub_vendor_dev_id;
};
struct i40e_profile_segment {
struct i40e_generic_seg_header header;
struct i40e_ppp_version version;
char name[I40E_PPP_NAME_SIZE];
u32 device_table_count;
struct i40e_device_id_entry device_table[1];
};
struct i40e_section_table {
u32 section_count;
u32 section_offset[1];
};
struct i40e_profile_section_header {
u16 tbl_size;
u16 data_end;
struct {
#define SECTION_TYPE_INFO 0x00000010
#define SECTION_TYPE_MMIO 0x00000800
#define SECTION_TYPE_AQ 0x00000801
#define SECTION_TYPE_NOTE 0x80000000
#define SECTION_TYPE_NAME 0x80000001
u32 type;
u32 offset;
u32 size;
} section;
};
struct i40e_profile_info {
u32 track_id;
struct i40e_ppp_version version;
u8 op;
#define I40E_PPP_ADD_TRACKID 0x01
#define I40E_PPP_REMOVE_TRACKID 0x02
u8 reserved[7];
u8 name[I40E_PPP_NAME_SIZE];
};
#endif /* _I40E_TYPE_H_ */

209
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
View File

@ -923,22 +923,19 @@ static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
}
/**
* i40e_reset_vf
* i40e_trigger_vf_reset
* @vf: pointer to the VF structure
* @flr: VFLR was issued or not
*
* reset the VF
* Trigger hardware to start a reset for a particular VF. Expects the caller
* to wait the proper amount of time to allow hardware to reset the VF before
* it cleans up and restores VF functionality.
**/
void i40e_reset_vf(struct i40e_vf *vf, bool flr)
static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
{
struct i40e_pf *pf = vf->pf;
struct i40e_hw *hw = &pf->hw;
u32 reg, reg_idx, bit_idx;
bool rsd = false;
int i;
if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
return;
/* warn the VF */
clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
@ -970,37 +967,22 @@ void i40e_reset_vf(struct i40e_vf *vf, bool flr)
if (i40e_quiesce_vf_pci(vf))
dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
vf->vf_id);
}
/* poll VPGEN_VFRSTAT reg to make sure
* that reset is complete
*/
for (i = 0; i < 10; i++) {
/* VF reset requires driver to first reset the VF and then
* poll the status register to make sure that the reset
* completed successfully. Due to internal HW FIFO flushes,
* we must wait 10ms before the register will be valid.
*/
usleep_range(10000, 20000);
reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
rsd = true;
break;
}
}
/**
* i40e_cleanup_reset_vf
* @vf: pointer to the VF structure
*
* Cleanup a VF after the hardware reset is finished. Expects the caller to
* have verified whether the reset is finished properly, and ensure the
* minimum amount of wait time has passed.
**/
static void i40e_cleanup_reset_vf(struct i40e_vf *vf)
{
struct i40e_pf *pf = vf->pf;
struct i40e_hw *hw = &pf->hw;
u32 reg;
if (flr)
usleep_range(10000, 20000);
if (!rsd)
dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
vf->vf_id);
/* On initial reset, we won't have any queues */
if (vf->lan_vsi_idx == 0)
goto complete_reset;
i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
complete_reset:
/* free VF resources to begin resetting the VSI state */
i40e_free_vf_res(vf);
@ -1035,6 +1017,159 @@ void i40e_reset_vf(struct i40e_vf *vf, bool flr)
* request resources immediately after setting this flag.
*/
wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
}
/**
* i40e_reset_vf
* @vf: pointer to the VF structure
* @flr: VFLR was issued or not
*
* reset the VF
**/
void i40e_reset_vf(struct i40e_vf *vf, bool flr)
{
struct i40e_pf *pf = vf->pf;
struct i40e_hw *hw = &pf->hw;
bool rsd = false;
u32 reg;
int i;
/* If VFs have been disabled, there is no need to reset */
if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
return;
i40e_trigger_vf_reset(vf, flr);
/* poll VPGEN_VFRSTAT reg to make sure
* that reset is complete
*/
for (i = 0; i < 10; i++) {
/* VF reset requires driver to first reset the VF and then
* poll the status register to make sure that the reset
* completed successfully. Due to internal HW FIFO flushes,
* we must wait 10ms before the register will be valid.
*/
usleep_range(10000, 20000);
reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
rsd = true;
break;
}
}
if (flr)
usleep_range(10000, 20000);
if (!rsd)
dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
vf->vf_id);
usleep_range(10000, 20000);
/* On initial reset, we don't have any queues to disable */
if (vf->lan_vsi_idx != 0)
i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
i40e_cleanup_reset_vf(vf);
i40e_flush(hw);
clear_bit(__I40E_VF_DISABLE, &pf->state);
}
/**
* i40e_reset_all_vfs
* @pf: pointer to the PF structure
* @flr: VFLR was issued or not
*
* Reset all allocated VFs in one go. First, tell the hardware to reset each
* VF, then do all the waiting in one chunk, and finally finish restoring each
* VF after the wait. This is useful during PF routines which need to reset
* all VFs, as otherwise it must perform these resets in a serialized fashion.
**/
void i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
{
struct i40e_hw *hw = &pf->hw;
struct i40e_vf *vf;
int i, v;
u32 reg;
/* If we don't have any VFs, then there is nothing to reset */
if (!pf->num_alloc_vfs)
return;
/* If VFs have been disabled, there is no need to reset */
if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
return;
/* Begin reset on all VFs at once */
for (v = 0; v < pf->num_alloc_vfs; v++)
i40e_trigger_vf_reset(&pf->vf[v], flr);
/* HW requires some time to make sure it can flush the FIFO for a VF
* when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
* sequence to make sure that it has completed. We'll keep track of
* the VFs using a simple iterator that increments once that VF has
* finished resetting.
*/
for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) {
usleep_range(10000, 20000);
/* Check each VF in sequence, beginning with the VF to fail
* the previous check.
*/
while (v < pf->num_alloc_vfs) {
vf = &pf->vf[v];
reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))
break;
/* If the current VF has finished resetting, move on
* to the next VF in sequence.
*/
v++;
}
}
if (flr)
usleep_range(10000, 20000);
/* Display a warning if at least one VF didn't manage to reset in
* time, but continue on with the operation.
*/
if (v < pf->num_alloc_vfs)
dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
pf->vf[v].vf_id);
usleep_range(10000, 20000);
/* Begin disabling all the rings associated with VFs, but do not wait
* between each VF.
*/
for (v = 0; v < pf->num_alloc_vfs; v++) {
/* On initial reset, we don't have any queues to disable */
if (pf->vf[v].lan_vsi_idx == 0)
continue;
i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]);
}
/* Now that we've notified HW to disable all of the VF rings, wait
* until they finish.
*/
for (v = 0; v < pf->num_alloc_vfs; v++) {
/* On initial reset, we don't have any queues to disable */
if (pf->vf[v].lan_vsi_idx == 0)
continue;
i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]);
}
/* Hw may need up to 50ms to finish disabling the RX queues. We
* minimize the wait by delaying only once for all VFs.
*/
mdelay(50);
/* Finish the reset on each VF */
for (v = 0; v < pf->num_alloc_vfs; v++)
i40e_cleanup_reset_vf(&pf->vf[v]);
i40e_flush(hw);
clear_bit(__I40E_VF_DISABLE, &pf->state);

1
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
View File

@ -124,6 +124,7 @@ int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
u32 v_retval, u8 *msg, u16 msglen);
int i40e_vc_process_vflr_event(struct i40e_pf *pf);
void i40e_reset_vf(struct i40e_vf *vf, bool flr);
void i40e_reset_all_vfs(struct i40e_pf *pf, bool flr);
void i40e_vc_notify_vf_reset(struct i40e_vf *vf);
/* VF configuration related iplink handlers */

3
drivers/net/ethernet/intel/i40evf/Makefile
View File

@ -29,6 +29,9 @@
#
#
ccflags-y += -I$(src)
subdir-ccflags-y += -I$(src)
obj-$(CONFIG_I40EVF) += i40evf.o
i40evf-objs := i40evf_main.o i40evf_ethtool.o i40evf_virtchnl.o \

4
drivers/net/ethernet/intel/i40evf/i40e_adminq.c
View File

@ -797,8 +797,8 @@ i40e_status i40evf_asq_send_command(struct i40e_hw *hw,
*/
if (i40evf_asq_done(hw))
break;
usleep_range(1000, 2000);
total_delay++;
udelay(50);
total_delay += 50;
} while (total_delay < hw->aq.asq_cmd_timeout);
}

2
drivers/net/ethernet/intel/i40evf/i40e_adminq.h
View File

@ -151,7 +151,7 @@ static inline int i40e_aq_rc_to_posix(int aq_ret, int aq_rc)
/* general information */
#define I40E_AQ_LARGE_BUF 512
#define I40E_ASQ_CMD_TIMEOUT 250 /* msecs */
#define I40E_ASQ_CMD_TIMEOUT 250000 /* usecs */
void i40evf_fill_default_direct_cmd_desc(struct i40e_aq_desc *desc,
u16 opcode);

34
drivers/net/ethernet/intel/i40evf/i40e_adminq_cmd.h
View File

@ -190,6 +190,10 @@ enum i40e_admin_queue_opc {
i40e_aqc_opc_add_mirror_rule = 0x0260,
i40e_aqc_opc_delete_mirror_rule = 0x0261,
/* Pipeline Personalization Profile */
i40e_aqc_opc_write_personalization_profile = 0x0270,
i40e_aqc_opc_get_personalization_profile_list = 0x0271,
/* DCB commands */
i40e_aqc_opc_dcb_ignore_pfc = 0x0301,
i40e_aqc_opc_dcb_updated = 0x0302,
@ -1426,6 +1430,36 @@ struct i40e_aqc_add_delete_mirror_rule_completion {
I40E_CHECK_CMD_LENGTH(i40e_aqc_add_delete_mirror_rule_completion);
/* Pipeline Personalization Profile */
struct i40e_aqc_write_personalization_profile {
u8 flags;
u8 reserved[3];
__le32 profile_track_id;
__le32 addr_high;
__le32 addr_low;
};
I40E_CHECK_CMD_LENGTH(i40e_aqc_write_personalization_profile);
struct i40e_aqc_write_ppp_resp {
__le32 error_offset;
__le32 error_info;
__le32 addr_high;
__le32 addr_low;
};
struct i40e_aqc_get_applied_profiles {
u8 flags;
#define I40E_AQC_GET_PPP_GET_CONF 0x1
#define I40E_AQC_GET_PPP_GET_RDPU_CONF 0x2
u8 rsv[3];
__le32 reserved;
__le32 addr_high;
__le32 addr_low;
};
I40E_CHECK_CMD_LENGTH(i40e_aqc_get_applied_profiles);
/* DCB 0x03xx*/
/* PFC Ignore (direct 0x0301)

212
drivers/net/ethernet/intel/i40evf/i40e_common.c
View File

@ -1131,3 +1131,215 @@ i40e_status i40e_vf_reset(struct i40e_hw *hw)
return i40e_aq_send_msg_to_pf(hw, I40E_VIRTCHNL_OP_RESET_VF,
0, NULL, 0, NULL);
}
/**
* i40evf_aq_write_ppp - Write pipeline personalization profile (ppp)
* @hw: pointer to the hw struct
* @buff: command buffer (size in bytes = buff_size)
* @buff_size: buffer size in bytes
* @track_id: package tracking id
* @error_offset: returns error offset
* @error_info: returns error information
* @cmd_details: pointer to command details structure or NULL
**/
enum
i40e_status_code i40evf_aq_write_ppp(struct i40e_hw *hw, void *buff,
u16 buff_size, u32 track_id,
u32 *error_offset, u32 *error_info,
struct i40e_asq_cmd_details *cmd_details)
{
struct i40e_aq_desc desc;
struct i40e_aqc_write_personalization_profile *cmd =
(struct i40e_aqc_write_personalization_profile *)
&desc.params.raw;
struct i40e_aqc_write_ppp_resp *resp;
i40e_status status;
i40evf_fill_default_direct_cmd_desc(&desc,
i40e_aqc_opc_write_personalization_profile);
desc.flags |= cpu_to_le16(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD);
if (buff_size > I40E_AQ_LARGE_BUF)
desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_LB);
desc.datalen = cpu_to_le16(buff_size);
cmd->profile_track_id = cpu_to_le32(track_id);
status = i40evf_asq_send_command(hw, &desc, buff, buff_size, cmd_details);
if (!status) {
resp = (struct i40e_aqc_write_ppp_resp *)&desc.params.raw;
if (error_offset)
*error_offset = le32_to_cpu(resp->error_offset);
if (error_info)
*error_info = le32_to_cpu(resp->error_info);
}
return status;
}
/**
* i40evf_aq_get_ppp_list - Read pipeline personalization profile (ppp)
* @hw: pointer to the hw struct
* @buff: command buffer (size in bytes = buff_size)
* @buff_size: buffer size in bytes
* @cmd_details: pointer to command details structure or NULL
**/
enum
i40e_status_code i40evf_aq_get_ppp_list(struct i40e_hw *hw, void *buff,
u16 buff_size, u8 flags,
struct i40e_asq_cmd_details *cmd_details)
{
struct i40e_aq_desc desc;
struct i40e_aqc_get_applied_profiles *cmd =
(struct i40e_aqc_get_applied_profiles *)&desc.params.raw;
i40e_status status;
i40evf_fill_default_direct_cmd_desc(&desc,
i40e_aqc_opc_get_personalization_profile_list);
desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
if (buff_size > I40E_AQ_LARGE_BUF)
desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_LB);
desc.datalen = cpu_to_le16(buff_size);
cmd->flags = flags;
status = i40evf_asq_send_command(hw, &desc, buff, buff_size, cmd_details);
return status;
}
/**
* i40evf_find_segment_in_package
* @segment_type: the segment type to search for (i.e., SEGMENT_TYPE_I40E)
* @pkg_hdr: pointer to the package header to be searched
*
* This function searches a package file for a particular segment type. On
* success it returns a pointer to the segment header, otherwise it will
* return NULL.
**/
struct i40e_generic_seg_header *
i40evf_find_segment_in_package(u32 segment_type,
struct i40e_package_header *pkg_hdr)
{
struct i40e_generic_seg_header *segment;
u32 i;
/* Search all package segments for the requested segment type */
for (i = 0; i < pkg_hdr->segment_count; i++) {
segment =
(struct i40e_generic_seg_header *)((u8 *)pkg_hdr +
pkg_hdr->segment_offset[i]);
if (segment->type == segment_type)
return segment;
}
return NULL;
}
/**
* i40evf_write_profile
* @hw: pointer to the hardware structure
* @profile: pointer to the profile segment of the package to be downloaded
* @track_id: package tracking id
*
* Handles the download of a complete package.
*/
enum i40e_status_code
i40evf_write_profile(struct i40e_hw *hw, struct i40e_profile_segment *profile,
u32 track_id)
{
i40e_status status = 0;
struct i40e_section_table *sec_tbl;
struct i40e_profile_section_header *sec = NULL;
u32 dev_cnt;
u32 vendor_dev_id;
u32 *nvm;
u32 section_size = 0;
u32 offset = 0, info = 0;
u32 i;
if (!track_id) {
i40e_debug(hw, I40E_DEBUG_PACKAGE, "Track_id can't be 0.");
return I40E_NOT_SUPPORTED;
}
dev_cnt = profile->device_table_count;
for (i = 0; i < dev_cnt; i++) {
vendor_dev_id = profile->device_table[i].vendor_dev_id;
if ((vendor_dev_id >> 16) == PCI_VENDOR_ID_INTEL)
if (hw->device_id == (vendor_dev_id & 0xFFFF))
break;
}
if (i == dev_cnt) {
i40e_debug(hw, I40E_DEBUG_PACKAGE, "Device doesn't support PPP");
return I40E_ERR_DEVICE_NOT_SUPPORTED;
}
nvm = (u32 *)&profile->device_table[dev_cnt];
sec_tbl = (struct i40e_section_table *)&nvm[nvm[0] + 1];
for (i = 0; i < sec_tbl->section_count; i++) {
sec = (struct i40e_profile_section_header *)((u8 *)profile +
sec_tbl->section_offset[i]);
/* Skip 'AQ', 'note' and 'name' sections */
if (sec->section.type != SECTION_TYPE_MMIO)
continue;
section_size = sec->section.size +
sizeof(struct i40e_profile_section_header);
/* Write profile */
status = i40evf_aq_write_ppp(hw, (void *)sec, (u16)section_size,
track_id, &offset, &info, NULL);
if (status) {
i40e_debug(hw, I40E_DEBUG_PACKAGE,
"Failed to write profile: offset %d, info %d",
offset, info);
break;
}
}
return status;
}
/**
* i40evf_add_pinfo_to_list
* @hw: pointer to the hardware structure
* @profile: pointer to the profile segment of the package
* @profile_info_sec: buffer for information section
* @track_id: package tracking id
*
* Register a profile to the list of loaded profiles.
*/
enum i40e_status_code
i40evf_add_pinfo_to_list(struct i40e_hw *hw,
struct i40e_profile_segment *profile,
u8 *profile_info_sec, u32 track_id)
{
i40e_status status = 0;
struct i40e_profile_section_header *sec = NULL;
struct i40e_profile_info *pinfo;
u32 offset = 0, info = 0;
sec = (struct i40e_profile_section_header *)profile_info_sec;
sec->tbl_size = 1;
sec->data_end = sizeof(struct i40e_profile_section_header) +
sizeof(struct i40e_profile_info);
sec->section.type = SECTION_TYPE_INFO;
sec->section.offset = sizeof(struct i40e_profile_section_header);
sec->section.size = sizeof(struct i40e_profile_info);
pinfo = (struct i40e_profile_info *)(profile_info_sec +
sec->section.offset);
pinfo->track_id = track_id;
pinfo->version = profile->version;
pinfo->op = I40E_PPP_ADD_TRACKID;
memcpy(pinfo->name, profile->name, I40E_PPP_NAME_SIZE);
status = i40evf_aq_write_ppp(hw, (void *)sec, sec->data_end,
track_id, &offset, &info, NULL);
return status;
}

17
drivers/net/ethernet/intel/i40evf/i40e_prototype.h
View File

@ -122,4 +122,21 @@ i40e_status i40e_write_phy_register(struct i40e_hw *hw, u8 page, u16 reg,
u8 i40e_get_phy_address(struct i40e_hw *hw, u8 dev_num);
i40e_status i40e_blink_phy_link_led(struct i40e_hw *hw,
u32 time, u32 interval);
i40e_status i40evf_aq_write_ppp(struct i40e_hw *hw, void *buff,
u16 buff_size, u32 track_id,
u32 *error_offset, u32 *error_info,
struct i40e_asq_cmd_details *cmd_details);
i40e_status i40evf_aq_get_ppp_list(struct i40e_hw *hw, void *buff,
u16 buff_size, u8 flags,
struct i40e_asq_cmd_details *cmd_details);
struct i40e_generic_seg_header *
i40evf_find_segment_in_package(u32 segment_type,
struct i40e_package_header *pkg_header);
enum i40e_status_code
i40evf_write_profile(struct i40e_hw *hw, struct i40e_profile_segment *i40e_seg,
u32 track_id);
enum i40e_status_code
i40evf_add_pinfo_to_list(struct i40e_hw *hw,
struct i40e_profile_segment *profile,
u8 *profile_info_sec, u32 track_id);
#endif /* _I40E_PROTOTYPE_H_ */

229
drivers/net/ethernet/intel/i40evf/i40e_trace.h Normal file
View File

@ -0,0 +1,229 @@
/*******************************************************************************
*
* Intel(R) 40-10 Gigabit Ethernet Virtual Function Driver
* Copyright(c) 2013 - 2017 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.
*
* 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
*
******************************************************************************/
/* Modeled on trace-events-sample.h */
/* The trace subsystem name for i40evf will be "i40evf".
*
* This file is named i40e_trace.h.
*
* Since this include file's name is different from the trace
* subsystem name, we'll have to define TRACE_INCLUDE_FILE at the end
* of this file.
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM i40evf
/* See trace-events-sample.h for a detailed description of why this
* guard clause is different from most normal include files.
*/
#if !defined(_I40E_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
#define _I40E_TRACE_H_
#include <linux/tracepoint.h>
/**
* i40e_trace() macro enables shared code to refer to trace points
* like:
*
* trace_i40e{,vf}_example(args...)
*
* ... as:
*
* i40e_trace(example, args...)
*
* ... to resolve to the PF or VF version of the tracepoint without
* ifdefs, and to allow tracepoints to be disabled entirely at build
* time.
*
* Trace point should always be referred to in the driver via this
* macro.
*
* Similarly, i40e_trace_enabled(trace_name) wraps references to
* trace_i40e{,vf}_<trace_name>_enabled() functions.
*/
#define _I40E_TRACE_NAME(trace_name) (trace_ ## i40evf ## _ ## trace_name)
#define I40E_TRACE_NAME(trace_name) _I40E_TRACE_NAME(trace_name)
#define i40e_trace(trace_name, args...) I40E_TRACE_NAME(trace_name)(args)
#define i40e_trace_enabled(trace_name) I40E_TRACE_NAME(trace_name##_enabled)()
/* Events common to PF and VF. Corresponding versions will be defined
* for both, named trace_i40e_* and trace_i40evf_*. The i40e_trace()
* macro above will select the right trace point name for the driver
* being built from shared code.
*/
/* Events related to a vsi & ring */
DECLARE_EVENT_CLASS(
i40evf_tx_template,
TP_PROTO(struct i40e_ring *ring,
struct i40e_tx_desc *desc,
struct i40e_tx_buffer *buf),
TP_ARGS(ring, desc, buf),
/* The convention here is to make the first fields in the
* TP_STRUCT match the TP_PROTO exactly. This enables the use
* of the args struct generated by the tplist tool (from the
* bcc-tools package) to be used for those fields. To access
* fields other than the tracepoint args will require the
* tplist output to be adjusted.
*/
TP_STRUCT__entry(
__field(void*, ring)
__field(void*, desc)
__field(void*, buf)
__string(devname, ring->netdev->name)
),
TP_fast_assign(
__entry->ring = ring;
__entry->desc = desc;
__entry->buf = buf;
__assign_str(devname, ring->netdev->name);
),
TP_printk(
"netdev: %s ring: %p desc: %p buf %p",
__get_str(devname), __entry->ring,
__entry->desc, __entry->buf)
);
DEFINE_EVENT(
i40evf_tx_template, i40evf_clean_tx_irq,
TP_PROTO(struct i40e_ring *ring,
struct i40e_tx_desc *desc,
struct i40e_tx_buffer *buf),
TP_ARGS(ring, desc, buf));
DEFINE_EVENT(
i40evf_tx_template, i40evf_clean_tx_irq_unmap,
TP_PROTO(struct i40e_ring *ring,
struct i40e_tx_desc *desc,
struct i40e_tx_buffer *buf),
TP_ARGS(ring, desc, buf));
DECLARE_EVENT_CLASS(
i40evf_rx_template,
TP_PROTO(struct i40e_ring *ring,
union i40e_32byte_rx_desc *desc,
struct sk_buff *skb),
TP_ARGS(ring, desc, skb),
TP_STRUCT__entry(
__field(void*, ring)
__field(void*, desc)
__field(void*, skb)
__string(devname, ring->netdev->name)
),
TP_fast_assign(
__entry->ring = ring;
__entry->desc = desc;
__entry->skb = skb;
__assign_str(devname, ring->netdev->name);
),
TP_printk(
"netdev: %s ring: %p desc: %p skb %p",
__get_str(devname), __entry->ring,
__entry->desc, __entry->skb)
);
DEFINE_EVENT(
i40evf_rx_template, i40evf_clean_rx_irq,
TP_PROTO(struct i40e_ring *ring,
union i40e_32byte_rx_desc *desc,
struct sk_buff *skb),
TP_ARGS(ring, desc, skb));
DEFINE_EVENT(
i40evf_rx_template, i40evf_clean_rx_irq_rx,
TP_PROTO(struct i40e_ring *ring,
union i40e_32byte_rx_desc *desc,
struct sk_buff *skb),
TP_ARGS(ring, desc, skb));
DECLARE_EVENT_CLASS(
i40evf_xmit_template,
TP_PROTO(struct sk_buff *skb,
struct i40e_ring *ring),
TP_ARGS(skb, ring),
TP_STRUCT__entry(
__field(void*, skb)
__field(void*, ring)
__string(devname, ring->netdev->name)
),
TP_fast_assign(
__entry->skb = skb;
__entry->ring = ring;
__assign_str(devname, ring->netdev->name);
),
TP_printk(
"netdev: %s skb: %p ring: %p",
__get_str(devname), __entry->skb,
__entry->ring)
);
DEFINE_EVENT(
i40evf_xmit_template, i40evf_xmit_frame_ring,
TP_PROTO(struct sk_buff *skb,
struct i40e_ring *ring),
TP_ARGS(skb, ring));
DEFINE_EVENT(
i40evf_xmit_template, i40evf_xmit_frame_ring_drop,
TP_PROTO(struct sk_buff *skb,
struct i40e_ring *ring),
TP_ARGS(skb, ring));
/* Events unique to the VF. */
#endif /* _I40E_TRACE_H_ */
/* This must be outside ifdef _I40E_TRACE_H */
/* This trace include file is not located in the .../include/trace
* with the kernel tracepoint definitions, because we're a loadable
* module.
*/
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE i40e_trace
#include <trace/define_trace.h>

25
drivers/net/ethernet/intel/i40evf/i40e_txrx.c
View File

@ -28,6 +28,7 @@
#include <net/busy_poll.h>
#include "i40evf.h"
#include "i40e_trace.h"
#include "i40e_prototype.h"
static inline __le64 build_ctob(u32 td_cmd, u32 td_offset, unsigned int size,
@ -180,6 +181,7 @@ static bool i40e_clean_tx_irq(struct i40e_vsi *vsi,
/* prevent any other reads prior to eop_desc */
read_barrier_depends();
i40e_trace(clean_tx_irq, tx_ring, tx_desc, tx_buf);
/* if the descriptor isn't done, no work yet to do */
if (!(eop_desc->cmd_type_offset_bsz &
cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE)))
@ -207,6 +209,8 @@ static bool i40e_clean_tx_irq(struct i40e_vsi *vsi,
/* unmap remaining buffers */
while (tx_desc != eop_desc) {
i40e_trace(clean_tx_irq_unmap,
tx_ring, tx_desc, tx_buf);
tx_buf++;
tx_desc++;
@ -831,13 +835,6 @@ static inline void i40e_rx_checksum(struct i40e_vsi *vsi,
if (rx_error & BIT(I40E_RX_DESC_ERROR_PPRS_SHIFT))
return;
/* If there is an outer header present that might contain a checksum
* we need to bump the checksum level by 1 to reflect the fact that
* we are indicating we validated the inner checksum.
*/
if (decoded.tunnel_type >= I40E_RX_PTYPE_TUNNEL_IP_GRENAT)
skb->csum_level = 1;
/* Only report checksum unnecessary for TCP, UDP, or SCTP */
switch (decoded.inner_prot) {
case I40E_RX_PTYPE_INNER_PROT_TCP:
@ -1324,10 +1321,6 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
* hardware wrote DD then the length will be non-zero
*/
qword = le64_to_cpu(rx_desc->wb.qword1.status_error_len);
size = (qword & I40E_RXD_QW1_LENGTH_PBUF_MASK) >>
I40E_RXD_QW1_LENGTH_PBUF_SHIFT;
if (!size)
break;
/* This memory barrier is needed to keep us from reading
* any other fields out of the rx_desc until we have
@ -1335,6 +1328,12 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
*/
dma_rmb();
size = (qword & I40E_RXD_QW1_LENGTH_PBUF_MASK) >>
I40E_RXD_QW1_LENGTH_PBUF_SHIFT;
if (!size)
break;
i40e_trace(clean_rx_irq, rx_ring, rx_desc, skb);
rx_buffer = i40e_get_rx_buffer(rx_ring, size);
/* retrieve a buffer from the ring */
@ -1388,6 +1387,7 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
vlan_tag = (qword & BIT(I40E_RX_DESC_STATUS_L2TAG1P_SHIFT)) ?
le16_to_cpu(rx_desc->wb.qword0.lo_dword.l2tag1) : 0;
i40e_trace(clean_rx_irq_rx, rx_ring, rx_desc, skb);
i40e_receive_skb(rx_ring, skb, vlan_tag);
skb = NULL;
@ -2229,6 +2229,8 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
/* prefetch the data, we'll need it later */
prefetch(skb->data);
i40e_trace(xmit_frame_ring, skb, tx_ring);
count = i40e_xmit_descriptor_count(skb);
if (i40e_chk_linearize(skb, count)) {
if (__skb_linearize(skb)) {
@ -2296,6 +2298,7 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
return NETDEV_TX_OK;
out_drop:
i40e_trace(xmit_frame_ring_drop, first->skb, tx_ring);
dev_kfree_skb_any(first->skb);
first->skb = NULL;
return NETDEV_TX_OK;

80
drivers/net/ethernet/intel/i40evf/i40e_type.h
View File

@ -78,6 +78,7 @@ enum i40e_debug_mask {
I40E_DEBUG_DCB = 0x00000400,
I40E_DEBUG_DIAG = 0x00000800,
I40E_DEBUG_FD = 0x00001000,
I40E_DEBUG_PACKAGE = 0x00002000,
I40E_DEBUG_AQ_MESSAGE = 0x01000000,
I40E_DEBUG_AQ_DESCRIPTOR = 0x02000000,
@ -1396,4 +1397,83 @@ enum i40e_reset_type {
#define I40E_FD_INSET_FLEX_WORD57_SHIFT 10
#define I40E_FD_INSET_FLEX_WORD57_MASK (0x1ULL << \
I40E_FD_INSET_FLEX_WORD57_SHIFT)
/* Version format for PPP */
struct i40e_ppp_version {
u8 major;
u8 minor;
u8 update;
u8 draft;
};
#define I40E_PPP_NAME_SIZE 32
/* Package header */
struct i40e_package_header {
struct i40e_ppp_version version;
u32 segment_count;
u32 segment_offset[1];
};
/* Generic segment header */
struct i40e_generic_seg_header {
#define SEGMENT_TYPE_METADATA 0x00000001
#define SEGMENT_TYPE_NOTES 0x00000002
#define SEGMENT_TYPE_I40E 0x00000011
#define SEGMENT_TYPE_X722 0x00000012
u32 type;
struct i40e_ppp_version version;
u32 size;
char name[I40E_PPP_NAME_SIZE];
};
struct i40e_metadata_segment {
struct i40e_generic_seg_header header;
struct i40e_ppp_version version;
u32 track_id;
char name[I40E_PPP_NAME_SIZE];
};
struct i40e_device_id_entry {
u32 vendor_dev_id;
u32 sub_vendor_dev_id;
};
struct i40e_profile_segment {
struct i40e_generic_seg_header header;
struct i40e_ppp_version version;
char name[I40E_PPP_NAME_SIZE];
u32 device_table_count;
struct i40e_device_id_entry device_table[1];
};
struct i40e_section_table {
u32 section_count;
u32 section_offset[1];
};
struct i40e_profile_section_header {
u16 tbl_size;
u16 data_end;
struct {
#define SECTION_TYPE_INFO 0x00000010
#define SECTION_TYPE_MMIO 0x00000800
#define SECTION_TYPE_AQ 0x00000801
#define SECTION_TYPE_NOTE 0x80000000
#define SECTION_TYPE_NAME 0x80000001
u32 type;
u32 offset;
u32 size;
} section;
};
struct i40e_profile_info {
u32 track_id;
struct i40e_ppp_version version;
u8 op;
#define I40E_PPP_ADD_TRACKID 0x01
#define I40E_PPP_REMOVE_TRACKID 0x02
u8 reserved[7];
u8 name[I40E_PPP_NAME_SIZE];
};
#endif /* _I40E_TYPE_H_ */

3
drivers/net/ethernet/intel/i40evf/i40evf.h
View File

@ -202,7 +202,6 @@ struct i40evf_adapter {
u32 flags;
#define I40EVF_FLAG_RX_CSUM_ENABLED BIT(0)
#define I40EVF_FLAG_IN_NETPOLL BIT(4)
#define I40EVF_FLAG_IMIR_ENABLED BIT(5)
#define I40EVF_FLAG_MQ_CAPABLE BIT(6)
#define I40EVF_FLAG_PF_COMMS_FAILED BIT(8)
@ -221,7 +220,6 @@ struct i40evf_adapter {
/* duplicates for common code */
#define I40E_FLAG_FDIR_ATR_ENABLED 0
#define I40E_FLAG_DCB_ENABLED 0
#define I40E_FLAG_IN_NETPOLL I40EVF_FLAG_IN_NETPOLL
#define I40E_FLAG_RX_CSUM_ENABLED I40EVF_FLAG_RX_CSUM_ENABLED
#define I40E_FLAG_WB_ON_ITR_CAPABLE I40EVF_FLAG_WB_ON_ITR_CAPABLE
#define I40E_FLAG_OUTER_UDP_CSUM_CAPABLE I40EVF_FLAG_OUTER_UDP_CSUM_CAPABLE
@ -252,7 +250,6 @@ struct i40evf_adapter {
/* OS defined structs */
struct net_device *netdev;
struct pci_dev *pdev;
struct net_device_stats net_stats;
struct i40e_hw hw; /* defined in i40e_type.h */

23
drivers/net/ethernet/intel/i40evf/i40evf_main.c
View File

@ -27,6 +27,13 @@
#include "i40evf.h"
#include "i40e_prototype.h"
#include "i40evf_client.h"
/* All i40evf tracepoints are defined by the include below, which must
* be included exactly once across the whole kernel with
* CREATE_TRACE_POINTS defined
*/
#define CREATE_TRACE_POINTS
#include "i40e_trace.h"
static int i40evf_setup_all_tx_resources(struct i40evf_adapter *adapter);
static int i40evf_setup_all_rx_resources(struct i40evf_adapter *adapter);
static int i40evf_close(struct net_device *netdev);
@ -2242,21 +2249,6 @@ static int i40evf_close(struct net_device *netdev)
return 0;
}
/**
* i40evf_get_stats - Get System Network Statistics
* @netdev: network interface device structure
*
* Returns the address of the device statistics structure.
* The statistics are actually updated from the timer callback.
**/
static struct net_device_stats *i40evf_get_stats(struct net_device *netdev)
{
struct i40evf_adapter *adapter = netdev_priv(netdev);
/* only return the current stats */
return &adapter->net_stats;
}
/**
* i40evf_change_mtu - Change the Maximum Transfer Unit
* @netdev: network interface device structure
@ -2363,7 +2355,6 @@ static const struct net_device_ops i40evf_netdev_ops = {
.ndo_open = i40evf_open,
.ndo_stop = i40evf_close,
.ndo_start_xmit = i40evf_xmit_frame,
.ndo_get_stats = i40evf_get_stats,
.ndo_set_rx_mode = i40evf_set_rx_mode,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = i40evf_set_mac,

22
drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
View File

@ -960,17 +960,17 @@ void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
case I40E_VIRTCHNL_OP_GET_STATS: {
struct i40e_eth_stats *stats =
(struct i40e_eth_stats *)msg;
adapter->net_stats.rx_packets = stats->rx_unicast +
stats->rx_multicast +
stats->rx_broadcast;
adapter->net_stats.tx_packets = stats->tx_unicast +
stats->tx_multicast +
stats->tx_broadcast;
adapter->net_stats.rx_bytes = stats->rx_bytes;
adapter->net_stats.tx_bytes = stats->tx_bytes;
adapter->net_stats.tx_errors = stats->tx_errors;
adapter->net_stats.rx_dropped = stats->rx_discards;
adapter->net_stats.tx_dropped = stats->tx_discards;
netdev->stats.rx_packets = stats->rx_unicast +
stats->rx_multicast +
stats->rx_broadcast;
netdev->stats.tx_packets = stats->tx_unicast +
stats->tx_multicast +
stats->tx_broadcast;
netdev->stats.rx_bytes = stats->rx_bytes;
netdev->stats.tx_bytes = stats->tx_bytes;
netdev->stats.tx_errors = stats->tx_errors;
netdev->stats.rx_dropped = stats->rx_discards;
netdev->stats.tx_dropped = stats->tx_discards;
adapter->current_stats = *stats;
}
break;