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linux/drivers/net/ethernet/intel/ice/ice_lib.c
Kiran Patil 40319796b7 ice: Add flow director support for channel mode 
Add support to enable flow-director filter when multiple TCs are
configured. Flow director filter can be configured using ethtool
(--config-ntuple option). When multiple TCs are configured, each
TC is mapped to an unique HW VSI. So VSI corresponding to queue
used in filter is identified and flow director context is updated
with correct VSI while configuring ntuple filter in HW.

Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-30 13:16:07 +00:00

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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018, Intel Corporation. */
#include "ice.h"
#include "ice_base.h"
#include "ice_flow.h"
#include "ice_lib.h"
#include "ice_fltr.h"
#include "ice_dcb_lib.h"
#include "ice_devlink.h"
/**
* ice_vsi_type_str - maps VSI type enum to string equivalents
* @vsi_type: VSI type enum
*/
const char *ice_vsi_type_str(enum ice_vsi_type vsi_type)
{
switch (vsi_type) {
case ICE_VSI_PF:
return "ICE_VSI_PF";
case ICE_VSI_VF:
return "ICE_VSI_VF";
case ICE_VSI_CTRL:
return "ICE_VSI_CTRL";
case ICE_VSI_CHNL:
return "ICE_VSI_CHNL";
case ICE_VSI_LB:
return "ICE_VSI_LB";
case ICE_VSI_SWITCHDEV_CTRL:
return "ICE_VSI_SWITCHDEV_CTRL";
default:
return "unknown";
}
}
/**
* ice_vsi_ctrl_all_rx_rings - Start or stop a VSI's Rx rings
* @vsi: the VSI being configured
* @ena: start or stop the Rx rings
*
* First enable/disable all of the Rx rings, flush any remaining writes, and
* then verify that they have all been enabled/disabled successfully. This will
* let all of the register writes complete when enabling/disabling the Rx rings
* before waiting for the change in hardware to complete.
*/
static int ice_vsi_ctrl_all_rx_rings(struct ice_vsi *vsi, bool ena)
{
int ret = 0;
u16 i;
ice_for_each_rxq(vsi, i)
ice_vsi_ctrl_one_rx_ring(vsi, ena, i, false);
ice_flush(&vsi->back->hw);
ice_for_each_rxq(vsi, i) {
ret = ice_vsi_wait_one_rx_ring(vsi, ena, i);
if (ret)
break;
}
return ret;
}
/**
* ice_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the VSI
* @vsi: VSI pointer
*
* On error: returns error code (negative)
* On success: returns 0
*/
static int ice_vsi_alloc_arrays(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
struct device *dev;
dev = ice_pf_to_dev(pf);
if (vsi->type == ICE_VSI_CHNL)
return 0;
/* allocate memory for both Tx and Rx ring pointers */
vsi->tx_rings = devm_kcalloc(dev, vsi->alloc_txq,
sizeof(*vsi->tx_rings), GFP_KERNEL);
if (!vsi->tx_rings)
return -ENOMEM;
vsi->rx_rings = devm_kcalloc(dev, vsi->alloc_rxq,
sizeof(*vsi->rx_rings), GFP_KERNEL);
if (!vsi->rx_rings)
goto err_rings;
/* txq_map needs to have enough space to track both Tx (stack) rings
* and XDP rings; at this point vsi->num_xdp_txq might not be set,
* so use num_possible_cpus() as we want to always provide XDP ring
* per CPU, regardless of queue count settings from user that might
* have come from ethtool's set_channels() callback;
*/
vsi->txq_map = devm_kcalloc(dev, (vsi->alloc_txq + num_possible_cpus()),
sizeof(*vsi->txq_map), GFP_KERNEL);
if (!vsi->txq_map)
goto err_txq_map;
vsi->rxq_map = devm_kcalloc(dev, vsi->alloc_rxq,
sizeof(*vsi->rxq_map), GFP_KERNEL);
if (!vsi->rxq_map)
goto err_rxq_map;
/* There is no need to allocate q_vectors for a loopback VSI. */
if (vsi->type == ICE_VSI_LB)
return 0;
/* allocate memory for q_vector pointers */
vsi->q_vectors = devm_kcalloc(dev, vsi->num_q_vectors,
sizeof(*vsi->q_vectors), GFP_KERNEL);
if (!vsi->q_vectors)
goto err_vectors;
vsi->af_xdp_zc_qps = bitmap_zalloc(max_t(int, vsi->alloc_txq, vsi->alloc_rxq), GFP_KERNEL);
if (!vsi->af_xdp_zc_qps)
goto err_zc_qps;
return 0;
err_zc_qps:
devm_kfree(dev, vsi->q_vectors);
err_vectors:
devm_kfree(dev, vsi->rxq_map);
err_rxq_map:
devm_kfree(dev, vsi->txq_map);
err_txq_map:
devm_kfree(dev, vsi->rx_rings);
err_rings:
devm_kfree(dev, vsi->tx_rings);
return -ENOMEM;
}
/**
* ice_vsi_set_num_desc - Set number of descriptors for queues on this VSI
* @vsi: the VSI being configured
*/
static void ice_vsi_set_num_desc(struct ice_vsi *vsi)
{
switch (vsi->type) {
case ICE_VSI_PF:
case ICE_VSI_SWITCHDEV_CTRL:
case ICE_VSI_CTRL:
case ICE_VSI_LB:
/* a user could change the values of num_[tr]x_desc using
* ethtool -G so we should keep those values instead of
* overwriting them with the defaults.
*/
if (!vsi->num_rx_desc)
vsi->num_rx_desc = ICE_DFLT_NUM_RX_DESC;
if (!vsi->num_tx_desc)
vsi->num_tx_desc = ICE_DFLT_NUM_TX_DESC;
break;
default:
dev_dbg(ice_pf_to_dev(vsi->back), "Not setting number of Tx/Rx descriptors for VSI type %d\n",
vsi->type);
break;
}
}
/**
* ice_vsi_set_num_qs - Set number of queues, descriptors and vectors for a VSI
* @vsi: the VSI being configured
* @vf_id: ID of the VF being configured
*
* Return 0 on success and a negative value on error
*/
static void ice_vsi_set_num_qs(struct ice_vsi *vsi, u16 vf_id)
{
struct ice_pf *pf = vsi->back;
struct ice_vf *vf = NULL;
if (vsi->type == ICE_VSI_VF)
vsi->vf_id = vf_id;
else
vsi->vf_id = ICE_INVAL_VFID;
switch (vsi->type) {
case ICE_VSI_PF:
if (vsi->req_txq) {
vsi->alloc_txq = vsi->req_txq;
vsi->num_txq = vsi->req_txq;
} else {
vsi->alloc_txq = min3(pf->num_lan_msix,
ice_get_avail_txq_count(pf),
(u16)num_online_cpus());
}
pf->num_lan_tx = vsi->alloc_txq;
/* only 1 Rx queue unless RSS is enabled */
if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
vsi->alloc_rxq = 1;
} else {
if (vsi->req_rxq) {
vsi->alloc_rxq = vsi->req_rxq;
vsi->num_rxq = vsi->req_rxq;
} else {
vsi->alloc_rxq = min3(pf->num_lan_msix,
ice_get_avail_rxq_count(pf),
(u16)num_online_cpus());
}
}
pf->num_lan_rx = vsi->alloc_rxq;
vsi->num_q_vectors = min_t(int, pf->num_lan_msix,
max_t(int, vsi->alloc_rxq,
vsi->alloc_txq));
break;
case ICE_VSI_SWITCHDEV_CTRL:
/* The number of queues for ctrl VSI is equal to number of VFs.
* Each ring is associated to the corresponding VF_PR netdev.
*/
vsi->alloc_txq = pf->num_alloc_vfs;
vsi->alloc_rxq = pf->num_alloc_vfs;
vsi->num_q_vectors = 1;
break;
case ICE_VSI_VF:
vf = &pf->vf[vsi->vf_id];
if (vf->num_req_qs)
vf->num_vf_qs = vf->num_req_qs;
vsi->alloc_txq = vf->num_vf_qs;
vsi->alloc_rxq = vf->num_vf_qs;
/* pf->num_msix_per_vf includes (VF miscellaneous vector +
* data queue interrupts). Since vsi->num_q_vectors is number
* of queues vectors, subtract 1 (ICE_NONQ_VECS_VF) from the
* original vector count
*/
vsi->num_q_vectors = pf->num_msix_per_vf - ICE_NONQ_VECS_VF;
break;
case ICE_VSI_CTRL:
vsi->alloc_txq = 1;
vsi->alloc_rxq = 1;
vsi->num_q_vectors = 1;
break;
case ICE_VSI_CHNL:
vsi->alloc_txq = 0;
vsi->alloc_rxq = 0;
break;
case ICE_VSI_LB:
vsi->alloc_txq = 1;
vsi->alloc_rxq = 1;
break;
default:
dev_warn(ice_pf_to_dev(pf), "Unknown VSI type %d\n", vsi->type);
break;
}
ice_vsi_set_num_desc(vsi);
}
/**
* ice_get_free_slot - get the next non-NULL location index in array
* @array: array to search
* @size: size of the array
* @curr: last known occupied index to be used as a search hint
*
* void * is being used to keep the functionality generic. This lets us use this
* function on any array of pointers.
*/
static int ice_get_free_slot(void *array, int size, int curr)
{
int **tmp_array = (int **)array;
int next;
if (curr < (size - 1) && !tmp_array[curr + 1]) {
next = curr + 1;
} else {
int i = 0;
while ((i < size) && (tmp_array[i]))
i++;
if (i == size)
next = ICE_NO_VSI;
else
next = i;
}
return next;
}
/**
* ice_vsi_delete - delete a VSI from the switch
* @vsi: pointer to VSI being removed
*/
void ice_vsi_delete(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
struct ice_vsi_ctx *ctxt;
int status;
ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
if (!ctxt)
return;
if (vsi->type == ICE_VSI_VF)
ctxt->vf_num = vsi->vf_id;
ctxt->vsi_num = vsi->vsi_num;
memcpy(&ctxt->info, &vsi->info, sizeof(ctxt->info));
status = ice_free_vsi(&pf->hw, vsi->idx, ctxt, false, NULL);
if (status)
dev_err(ice_pf_to_dev(pf), "Failed to delete VSI %i in FW - error: %d\n",
vsi->vsi_num, status);
kfree(ctxt);
}
/**
* ice_vsi_free_arrays - De-allocate queue and vector pointer arrays for the VSI
* @vsi: pointer to VSI being cleared
*/
static void ice_vsi_free_arrays(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
struct device *dev;
dev = ice_pf_to_dev(pf);
if (vsi->af_xdp_zc_qps) {
bitmap_free(vsi->af_xdp_zc_qps);
vsi->af_xdp_zc_qps = NULL;
}
/* free the ring and vector containers */
if (vsi->q_vectors) {
devm_kfree(dev, vsi->q_vectors);
vsi->q_vectors = NULL;
}
if (vsi->tx_rings) {
devm_kfree(dev, vsi->tx_rings);
vsi->tx_rings = NULL;
}
if (vsi->rx_rings) {
devm_kfree(dev, vsi->rx_rings);
vsi->rx_rings = NULL;
}
if (vsi->txq_map) {
devm_kfree(dev, vsi->txq_map);
vsi->txq_map = NULL;
}
if (vsi->rxq_map) {
devm_kfree(dev, vsi->rxq_map);
vsi->rxq_map = NULL;
}
}
/**
* ice_vsi_clear - clean up and deallocate the provided VSI
* @vsi: pointer to VSI being cleared
*
* This deallocates the VSI's queue resources, removes it from the PF's
* VSI array if necessary, and deallocates the VSI
*
* Returns 0 on success, negative on failure
*/
int ice_vsi_clear(struct ice_vsi *vsi)
{
struct ice_pf *pf = NULL;
struct device *dev;
if (!vsi)
return 0;
if (!vsi->back)
return -EINVAL;
pf = vsi->back;
dev = ice_pf_to_dev(pf);
if (!pf->vsi[vsi->idx] || pf->vsi[vsi->idx] != vsi) {
dev_dbg(dev, "vsi does not exist at pf->vsi[%d]\n", vsi->idx);
return -EINVAL;
}
mutex_lock(&pf->sw_mutex);
/* updates the PF for this cleared VSI */
pf->vsi[vsi->idx] = NULL;
if (vsi->idx < pf->next_vsi && vsi->type != ICE_VSI_CTRL)
pf->next_vsi = vsi->idx;
if (vsi->idx < pf->next_vsi && vsi->type == ICE_VSI_CTRL &&
vsi->vf_id != ICE_INVAL_VFID)
pf->next_vsi = vsi->idx;
ice_vsi_free_arrays(vsi);
mutex_unlock(&pf->sw_mutex);
devm_kfree(dev, vsi);
return 0;
}
/**
* ice_msix_clean_ctrl_vsi - MSIX mode interrupt handler for ctrl VSI
* @irq: interrupt number
* @data: pointer to a q_vector
*/
static irqreturn_t ice_msix_clean_ctrl_vsi(int __always_unused irq, void *data)
{
struct ice_q_vector *q_vector = (struct ice_q_vector *)data;
if (!q_vector->tx.tx_ring)
return IRQ_HANDLED;
#define FDIR_RX_DESC_CLEAN_BUDGET 64
ice_clean_rx_irq(q_vector->rx.rx_ring, FDIR_RX_DESC_CLEAN_BUDGET);
ice_clean_ctrl_tx_irq(q_vector->tx.tx_ring);
return IRQ_HANDLED;
}
/**
* ice_msix_clean_rings - MSIX mode Interrupt Handler
* @irq: interrupt number
* @data: pointer to a q_vector
*/
static irqreturn_t ice_msix_clean_rings(int __always_unused irq, void *data)
{
struct ice_q_vector *q_vector = (struct ice_q_vector *)data;
if (!q_vector->tx.tx_ring && !q_vector->rx.rx_ring)
return IRQ_HANDLED;
q_vector->total_events++;
napi_schedule(&q_vector->napi);
return IRQ_HANDLED;
}
static irqreturn_t ice_eswitch_msix_clean_rings(int __always_unused irq, void *data)
{
struct ice_q_vector *q_vector = (struct ice_q_vector *)data;
struct ice_pf *pf = q_vector->vsi->back;
int i;
if (!q_vector->tx.tx_ring && !q_vector->rx.rx_ring)
return IRQ_HANDLED;
ice_for_each_vf(pf, i)
napi_schedule(&pf->vf[i].repr->q_vector->napi);
return IRQ_HANDLED;
}
/**
* ice_vsi_alloc - Allocates the next available struct VSI in the PF
* @pf: board private structure
* @vsi_type: type of VSI
* @ch: ptr to channel
* @vf_id: ID of the VF being configured
*
* returns a pointer to a VSI on success, NULL on failure.
*/
static struct ice_vsi *
ice_vsi_alloc(struct ice_pf *pf, enum ice_vsi_type vsi_type,
struct ice_channel *ch, u16 vf_id)
{
struct device *dev = ice_pf_to_dev(pf);
struct ice_vsi *vsi = NULL;
/* Need to protect the allocation of the VSIs at the PF level */
mutex_lock(&pf->sw_mutex);
/* If we have already allocated our maximum number of VSIs,
* pf->next_vsi will be ICE_NO_VSI. If not, pf->next_vsi index
* is available to be populated
*/
if (pf->next_vsi == ICE_NO_VSI) {
dev_dbg(dev, "out of VSI slots!\n");
goto unlock_pf;
}
vsi = devm_kzalloc(dev, sizeof(*vsi), GFP_KERNEL);
if (!vsi)
goto unlock_pf;
vsi->type = vsi_type;
vsi->back = pf;
set_bit(ICE_VSI_DOWN, vsi->state);
if (vsi_type == ICE_VSI_VF)
ice_vsi_set_num_qs(vsi, vf_id);
else if (vsi_type != ICE_VSI_CHNL)
ice_vsi_set_num_qs(vsi, ICE_INVAL_VFID);
switch (vsi->type) {
case ICE_VSI_SWITCHDEV_CTRL:
if (ice_vsi_alloc_arrays(vsi))
goto err_rings;
/* Setup eswitch MSIX irq handler for VSI */
vsi->irq_handler = ice_eswitch_msix_clean_rings;
break;
case ICE_VSI_PF:
if (ice_vsi_alloc_arrays(vsi))
goto err_rings;
/* Setup default MSIX irq handler for VSI */
vsi->irq_handler = ice_msix_clean_rings;
break;
case ICE_VSI_CTRL:
if (ice_vsi_alloc_arrays(vsi))
goto err_rings;
/* Setup ctrl VSI MSIX irq handler */
vsi->irq_handler = ice_msix_clean_ctrl_vsi;
break;
case ICE_VSI_VF:
if (ice_vsi_alloc_arrays(vsi))
goto err_rings;
break;
case ICE_VSI_CHNL:
if (!ch)
goto err_rings;
vsi->num_rxq = ch->num_rxq;
vsi->num_txq = ch->num_txq;
vsi->next_base_q = ch->base_q;
break;
case ICE_VSI_LB:
if (ice_vsi_alloc_arrays(vsi))
goto err_rings;
break;
default:
dev_warn(dev, "Unknown VSI type %d\n", vsi->type);
goto unlock_pf;
}
if (vsi->type == ICE_VSI_CTRL && vf_id == ICE_INVAL_VFID) {
/* Use the last VSI slot as the index for PF control VSI */
vsi->idx = pf->num_alloc_vsi - 1;
pf->ctrl_vsi_idx = vsi->idx;
pf->vsi[vsi->idx] = vsi;
} else {
/* fill slot and make note of the index */
vsi->idx = pf->next_vsi;
pf->vsi[pf->next_vsi] = vsi;
/* prepare pf->next_vsi for next use */
pf->next_vsi = ice_get_free_slot(pf->vsi, pf->num_alloc_vsi,
pf->next_vsi);
}
if (vsi->type == ICE_VSI_CTRL && vf_id != ICE_INVAL_VFID)
pf->vf[vf_id].ctrl_vsi_idx = vsi->idx;
goto unlock_pf;
err_rings:
devm_kfree(dev, vsi);
vsi = NULL;
unlock_pf:
mutex_unlock(&pf->sw_mutex);
return vsi;
}
/**
* ice_alloc_fd_res - Allocate FD resource for a VSI
* @vsi: pointer to the ice_vsi
*
* This allocates the FD resources
*
* Returns 0 on success, -EPERM on no-op or -EIO on failure
*/
static int ice_alloc_fd_res(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
u32 g_val, b_val;
/* Flow Director filters are only allocated/assigned to the PF VSI or
* CHNL VSI which passes the traffic. The CTRL VSI is only used to
* add/delete filters so resources are not allocated to it
*/
if (!test_bit(ICE_FLAG_FD_ENA, pf->flags))
return -EPERM;
if (!(vsi->type == ICE_VSI_PF || vsi->type == ICE_VSI_VF ||
vsi->type == ICE_VSI_CHNL))
return -EPERM;
/* FD filters from guaranteed pool per VSI */
g_val = pf->hw.func_caps.fd_fltr_guar;
if (!g_val)
return -EPERM;
/* FD filters from best effort pool */
b_val = pf->hw.func_caps.fd_fltr_best_effort;
if (!b_val)
return -EPERM;
/* PF main VSI gets only 64 FD resources from guaranteed pool
* when ADQ is configured.
*/
#define ICE_PF_VSI_GFLTR 64
/* determine FD filter resources per VSI from shared(best effort) and
* dedicated pool
*/
if (vsi->type == ICE_VSI_PF) {
vsi->num_gfltr = g_val;
/* if MQPRIO is configured, main VSI doesn't get all FD
* resources from guaranteed pool. PF VSI gets 64 FD resources
*/
if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) {
if (g_val < ICE_PF_VSI_GFLTR)
return -EPERM;
/* allow bare minimum entries for PF VSI */
vsi->num_gfltr = ICE_PF_VSI_GFLTR;
}
/* each VSI gets same "best_effort" quota */
vsi->num_bfltr = b_val;
} else if (vsi->type == ICE_VSI_VF) {
vsi->num_gfltr = 0;
/* each VSI gets same "best_effort" quota */
vsi->num_bfltr = b_val;
} else {
struct ice_vsi *main_vsi;
int numtc;
main_vsi = ice_get_main_vsi(pf);
if (!main_vsi)
return -EPERM;
if (!main_vsi->all_numtc)
return -EINVAL;
/* figure out ADQ numtc */
numtc = main_vsi->all_numtc - ICE_CHNL_START_TC;
/* only one TC but still asking resources for channels,
* invalid config
*/
if (numtc < ICE_CHNL_START_TC)
return -EPERM;
g_val -= ICE_PF_VSI_GFLTR;
/* channel VSIs gets equal share from guaranteed pool */
vsi->num_gfltr = g_val / numtc;
/* each VSI gets same "best_effort" quota */
vsi->num_bfltr = b_val;
}
return 0;
}
/**
* ice_vsi_get_qs - Assign queues from PF to VSI
* @vsi: the VSI to assign queues to
*
* Returns 0 on success and a negative value on error
*/
static int ice_vsi_get_qs(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
struct ice_qs_cfg tx_qs_cfg = {
.qs_mutex = &pf->avail_q_mutex,
.pf_map = pf->avail_txqs,
.pf_map_size = pf->max_pf_txqs,
.q_count = vsi->alloc_txq,
.scatter_count = ICE_MAX_SCATTER_TXQS,
.vsi_map = vsi->txq_map,
.vsi_map_offset = 0,
.mapping_mode = ICE_VSI_MAP_CONTIG
};
struct ice_qs_cfg rx_qs_cfg = {
.qs_mutex = &pf->avail_q_mutex,
.pf_map = pf->avail_rxqs,
.pf_map_size = pf->max_pf_rxqs,
.q_count = vsi->alloc_rxq,
.scatter_count = ICE_MAX_SCATTER_RXQS,
.vsi_map = vsi->rxq_map,
.vsi_map_offset = 0,
.mapping_mode = ICE_VSI_MAP_CONTIG
};
int ret;
if (vsi->type == ICE_VSI_CHNL)
return 0;
ret = __ice_vsi_get_qs(&tx_qs_cfg);
if (ret)
return ret;
vsi->tx_mapping_mode = tx_qs_cfg.mapping_mode;
ret = __ice_vsi_get_qs(&rx_qs_cfg);
if (ret)
return ret;
vsi->rx_mapping_mode = rx_qs_cfg.mapping_mode;
return 0;
}
/**
* ice_vsi_put_qs - Release queues from VSI to PF
* @vsi: the VSI that is going to release queues
*/
static void ice_vsi_put_qs(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
int i;
mutex_lock(&pf->avail_q_mutex);
ice_for_each_alloc_txq(vsi, i) {
clear_bit(vsi->txq_map[i], pf->avail_txqs);
vsi->txq_map[i] = ICE_INVAL_Q_INDEX;
}
ice_for_each_alloc_rxq(vsi, i) {
clear_bit(vsi->rxq_map[i], pf->avail_rxqs);
vsi->rxq_map[i] = ICE_INVAL_Q_INDEX;
}
mutex_unlock(&pf->avail_q_mutex);
}
/**
* ice_is_safe_mode
* @pf: pointer to the PF struct
*
* returns true if driver is in safe mode, false otherwise
*/
bool ice_is_safe_mode(struct ice_pf *pf)
{
return !test_bit(ICE_FLAG_ADV_FEATURES, pf->flags);
}
/**
* ice_is_aux_ena
* @pf: pointer to the PF struct
*
* returns true if AUX devices/drivers are supported, false otherwise
*/
bool ice_is_aux_ena(struct ice_pf *pf)
{
return test_bit(ICE_FLAG_AUX_ENA, pf->flags);
}
/**
* ice_vsi_clean_rss_flow_fld - Delete RSS configuration
* @vsi: the VSI being cleaned up
*
* This function deletes RSS input set for all flows that were configured
* for this VSI
*/
static void ice_vsi_clean_rss_flow_fld(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
int status;
if (ice_is_safe_mode(pf))
return;
status = ice_rem_vsi_rss_cfg(&pf->hw, vsi->idx);
if (status)
dev_dbg(ice_pf_to_dev(pf), "ice_rem_vsi_rss_cfg failed for vsi = %d, error = %d\n",
vsi->vsi_num, status);
}
/**
* ice_rss_clean - Delete RSS related VSI structures and configuration
* @vsi: the VSI being removed
*/
static void ice_rss_clean(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
struct device *dev;
dev = ice_pf_to_dev(pf);
if (vsi->rss_hkey_user)
devm_kfree(dev, vsi->rss_hkey_user);
if (vsi->rss_lut_user)
devm_kfree(dev, vsi->rss_lut_user);
ice_vsi_clean_rss_flow_fld(vsi);
/* remove RSS replay list */
if (!ice_is_safe_mode(pf))
ice_rem_vsi_rss_list(&pf->hw, vsi->idx);
}
/**
* ice_vsi_set_rss_params - Setup RSS capabilities per VSI type
* @vsi: the VSI being configured
*/
static void ice_vsi_set_rss_params(struct ice_vsi *vsi)
{
struct ice_hw_common_caps *cap;
struct ice_pf *pf = vsi->back;
if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
vsi->rss_size = 1;
return;
}
cap = &pf->hw.func_caps.common_cap;
switch (vsi->type) {
case ICE_VSI_CHNL:
case ICE_VSI_PF:
/* PF VSI will inherit RSS instance of PF */
vsi->rss_table_size = (u16)cap->rss_table_size;
if (vsi->type == ICE_VSI_CHNL)
vsi->rss_size = min_t(u16, vsi->num_rxq,
BIT(cap->rss_table_entry_width));
else
vsi->rss_size = min_t(u16, num_online_cpus(),
BIT(cap->rss_table_entry_width));
vsi->rss_lut_type = ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_PF;
break;
case ICE_VSI_SWITCHDEV_CTRL:
vsi->rss_table_size = ICE_VSIQF_HLUT_ARRAY_SIZE;
vsi->rss_size = min_t(u16, num_online_cpus(),
BIT(cap->rss_table_entry_width));
vsi->rss_lut_type = ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_VSI;
break;
case ICE_VSI_VF:
/* VF VSI will get a small RSS table.
* For VSI_LUT, LUT size should be set to 64 bytes.
*/
vsi->rss_table_size = ICE_VSIQF_HLUT_ARRAY_SIZE;
vsi->rss_size = ICE_MAX_RSS_QS_PER_VF;
vsi->rss_lut_type = ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_VSI;
break;
case ICE_VSI_LB:
break;
default:
dev_dbg(ice_pf_to_dev(pf), "Unsupported VSI type %s\n",
ice_vsi_type_str(vsi->type));
break;
}
}
/**
* ice_set_dflt_vsi_ctx - Set default VSI context before adding a VSI
* @ctxt: the VSI context being set
*
* This initializes a default VSI context for all sections except the Queues.
*/
static void ice_set_dflt_vsi_ctx(struct ice_vsi_ctx *ctxt)
{
u32 table = 0;
memset(&ctxt->info, 0, sizeof(ctxt->info));
/* VSI's should be allocated from shared pool */
ctxt->alloc_from_pool = true;
/* Src pruning enabled by default */
ctxt->info.sw_flags = ICE_AQ_VSI_SW_FLAG_SRC_PRUNE;
/* Traffic from VSI can be sent to LAN */
ctxt->info.sw_flags2 = ICE_AQ_VSI_SW_FLAG_LAN_ENA;
/* By default bits 3 and 4 in vlan_flags are 0's which results in legacy
* behavior (show VLAN, DEI, and UP) in descriptor. Also, allow all
* packets untagged/tagged.
*/
ctxt->info.vlan_flags = ((ICE_AQ_VSI_VLAN_MODE_ALL &
ICE_AQ_VSI_VLAN_MODE_M) >>
ICE_AQ_VSI_VLAN_MODE_S);
/* Have 1:1 UP mapping for both ingress/egress tables */
table |= ICE_UP_TABLE_TRANSLATE(0, 0);
table |= ICE_UP_TABLE_TRANSLATE(1, 1);
table |= ICE_UP_TABLE_TRANSLATE(2, 2);
table |= ICE_UP_TABLE_TRANSLATE(3, 3);
table |= ICE_UP_TABLE_TRANSLATE(4, 4);
table |= ICE_UP_TABLE_TRANSLATE(5, 5);
table |= ICE_UP_TABLE_TRANSLATE(6, 6);
table |= ICE_UP_TABLE_TRANSLATE(7, 7);
ctxt->info.ingress_table = cpu_to_le32(table);
ctxt->info.egress_table = cpu_to_le32(table);
/* Have 1:1 UP mapping for outer to inner UP table */
ctxt->info.outer_up_table = cpu_to_le32(table);
/* No Outer tag support outer_tag_flags remains to zero */
}
/**
* ice_vsi_setup_q_map - Setup a VSI queue map
* @vsi: the VSI being configured
* @ctxt: VSI context structure
*/
static void ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt)
{
u16 offset = 0, qmap = 0, tx_count = 0, pow = 0;
u16 num_txq_per_tc, num_rxq_per_tc;
u16 qcount_tx = vsi->alloc_txq;
u16 qcount_rx = vsi->alloc_rxq;
u8 netdev_tc = 0;
int i;
if (!vsi->tc_cfg.numtc) {
/* at least TC0 should be enabled by default */
vsi->tc_cfg.numtc = 1;
vsi->tc_cfg.ena_tc = 1;
}
num_rxq_per_tc = min_t(u16, qcount_rx / vsi->tc_cfg.numtc, ICE_MAX_RXQS_PER_TC);
if (!num_rxq_per_tc)
num_rxq_per_tc = 1;
num_txq_per_tc = qcount_tx / vsi->tc_cfg.numtc;
if (!num_txq_per_tc)
num_txq_per_tc = 1;
/* find the (rounded up) power-of-2 of qcount */
pow = (u16)order_base_2(num_rxq_per_tc);
/* TC mapping is a function of the number of Rx queues assigned to the
* VSI for each traffic class and the offset of these queues.
* The first 10 bits are for queue offset for TC0, next 4 bits for no:of
* queues allocated to TC0. No:of queues is a power-of-2.
*
* If TC is not enabled, the queue offset is set to 0, and allocate one
* queue, this way, traffic for the given TC will be sent to the default
* queue.
*
* Setup number and offset of Rx queues for all TCs for the VSI
*/
ice_for_each_traffic_class(i) {
if (!(vsi->tc_cfg.ena_tc & BIT(i))) {
/* TC is not enabled */
vsi->tc_cfg.tc_info[i].qoffset = 0;
vsi->tc_cfg.tc_info[i].qcount_rx = 1;
vsi->tc_cfg.tc_info[i].qcount_tx = 1;
vsi->tc_cfg.tc_info[i].netdev_tc = 0;
ctxt->info.tc_mapping[i] = 0;
continue;
}
/* TC is enabled */
vsi->tc_cfg.tc_info[i].qoffset = offset;
vsi->tc_cfg.tc_info[i].qcount_rx = num_rxq_per_tc;
vsi->tc_cfg.tc_info[i].qcount_tx = num_txq_per_tc;
vsi->tc_cfg.tc_info[i].netdev_tc = netdev_tc++;
qmap = ((offset << ICE_AQ_VSI_TC_Q_OFFSET_S) &
ICE_AQ_VSI_TC_Q_OFFSET_M) |
((pow << ICE_AQ_VSI_TC_Q_NUM_S) &
ICE_AQ_VSI_TC_Q_NUM_M);
offset += num_rxq_per_tc;
tx_count += num_txq_per_tc;
ctxt->info.tc_mapping[i] = cpu_to_le16(qmap);
}
/* if offset is non-zero, means it is calculated correctly based on
* enabled TCs for a given VSI otherwise qcount_rx will always
* be correct and non-zero because it is based off - VSI's
* allocated Rx queues which is at least 1 (hence qcount_tx will be
* at least 1)
*/
if (offset)
vsi->num_rxq = offset;
else
vsi->num_rxq = num_rxq_per_tc;
vsi->num_txq = tx_count;
if (vsi->type == ICE_VSI_VF && vsi->num_txq != vsi->num_rxq) {
dev_dbg(ice_pf_to_dev(vsi->back), "VF VSI should have same number of Tx and Rx queues. Hence making them equal\n");
/* since there is a chance that num_rxq could have been changed
* in the above for loop, make num_txq equal to num_rxq.
*/
vsi->num_txq = vsi->num_rxq;
}
/* Rx queue mapping */
ctxt->info.mapping_flags |= cpu_to_le16(ICE_AQ_VSI_Q_MAP_CONTIG);
/* q_mapping buffer holds the info for the first queue allocated for
* this VSI in the PF space and also the number of queues associated
* with this VSI.
*/
ctxt->info.q_mapping[0] = cpu_to_le16(vsi->rxq_map[0]);
ctxt->info.q_mapping[1] = cpu_to_le16(vsi->num_rxq);
}
/**
* ice_set_fd_vsi_ctx - Set FD VSI context before adding a VSI
* @ctxt: the VSI context being set
* @vsi: the VSI being configured
*/
static void ice_set_fd_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi)
{
u8 dflt_q_group, dflt_q_prio;
u16 dflt_q, report_q, val;
if (vsi->type != ICE_VSI_PF && vsi->type != ICE_VSI_CTRL &&
vsi->type != ICE_VSI_VF && vsi->type != ICE_VSI_CHNL)
return;
val = ICE_AQ_VSI_PROP_FLOW_DIR_VALID;
ctxt->info.valid_sections |= cpu_to_le16(val);
dflt_q = 0;
dflt_q_group = 0;
report_q = 0;
dflt_q_prio = 0;
/* enable flow director filtering/programming */
val = ICE_AQ_VSI_FD_ENABLE | ICE_AQ_VSI_FD_PROG_ENABLE;
ctxt->info.fd_options = cpu_to_le16(val);
/* max of allocated flow director filters */
ctxt->info.max_fd_fltr_dedicated =
cpu_to_le16(vsi->num_gfltr);
/* max of shared flow director filters any VSI may program */
ctxt->info.max_fd_fltr_shared =
cpu_to_le16(vsi->num_bfltr);
/* default queue index within the VSI of the default FD */
val = ((dflt_q << ICE_AQ_VSI_FD_DEF_Q_S) &
ICE_AQ_VSI_FD_DEF_Q_M);
/* target queue or queue group to the FD filter */
val |= ((dflt_q_group << ICE_AQ_VSI_FD_DEF_GRP_S) &
ICE_AQ_VSI_FD_DEF_GRP_M);
ctxt->info.fd_def_q = cpu_to_le16(val);
/* queue index on which FD filter completion is reported */
val = ((report_q << ICE_AQ_VSI_FD_REPORT_Q_S) &
ICE_AQ_VSI_FD_REPORT_Q_M);
/* priority of the default qindex action */
val |= ((dflt_q_prio << ICE_AQ_VSI_FD_DEF_PRIORITY_S) &
ICE_AQ_VSI_FD_DEF_PRIORITY_M);
ctxt->info.fd_report_opt = cpu_to_le16(val);
}
/**
* ice_set_rss_vsi_ctx - Set RSS VSI context before adding a VSI
* @ctxt: the VSI context being set
* @vsi: the VSI being configured
*/
static void ice_set_rss_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi)
{
u8 lut_type, hash_type;
struct device *dev;
struct ice_pf *pf;
pf = vsi->back;
dev = ice_pf_to_dev(pf);
switch (vsi->type) {
case ICE_VSI_CHNL:
case ICE_VSI_PF:
/* PF VSI will inherit RSS instance of PF */
lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_PF;
hash_type = ICE_AQ_VSI_Q_OPT_RSS_TPLZ;
break;
case ICE_VSI_VF:
/* VF VSI will gets a small RSS table which is a VSI LUT type */
lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI;
hash_type = ICE_AQ_VSI_Q_OPT_RSS_TPLZ;
break;
default:
dev_dbg(dev, "Unsupported VSI type %s\n",
ice_vsi_type_str(vsi->type));
return;
}
ctxt->info.q_opt_rss = ((lut_type << ICE_AQ_VSI_Q_OPT_RSS_LUT_S) &
ICE_AQ_VSI_Q_OPT_RSS_LUT_M) |
((hash_type << ICE_AQ_VSI_Q_OPT_RSS_HASH_S) &
ICE_AQ_VSI_Q_OPT_RSS_HASH_M);
}
static void
ice_chnl_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt)
{
struct ice_pf *pf = vsi->back;
u16 qcount, qmap;
u8 offset = 0;
int pow;
qcount = min_t(int, vsi->num_rxq, pf->num_lan_msix);
pow = order_base_2(qcount);
qmap = ((offset << ICE_AQ_VSI_TC_Q_OFFSET_S) &
ICE_AQ_VSI_TC_Q_OFFSET_M) |
((pow << ICE_AQ_VSI_TC_Q_NUM_S) &
ICE_AQ_VSI_TC_Q_NUM_M);
ctxt->info.tc_mapping[0] = cpu_to_le16(qmap);
ctxt->info.mapping_flags |= cpu_to_le16(ICE_AQ_VSI_Q_MAP_CONTIG);
ctxt->info.q_mapping[0] = cpu_to_le16(vsi->next_base_q);
ctxt->info.q_mapping[1] = cpu_to_le16(qcount);
}
/**
* ice_vsi_init - Create and initialize a VSI
* @vsi: the VSI being configured
* @init_vsi: is this call creating a VSI
*
* This initializes a VSI context depending on the VSI type to be added and
* passes it down to the add_vsi aq command to create a new VSI.
*/
static int ice_vsi_init(struct ice_vsi *vsi, bool init_vsi)
{
struct ice_pf *pf = vsi->back;
struct ice_hw *hw = &pf->hw;
struct ice_vsi_ctx *ctxt;
struct device *dev;
int ret = 0;
dev = ice_pf_to_dev(pf);
ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
if (!ctxt)
return -ENOMEM;
switch (vsi->type) {
case ICE_VSI_CTRL:
case ICE_VSI_LB:
case ICE_VSI_PF:
ctxt->flags = ICE_AQ_VSI_TYPE_PF;
break;
case ICE_VSI_SWITCHDEV_CTRL:
case ICE_VSI_CHNL:
ctxt->flags = ICE_AQ_VSI_TYPE_VMDQ2;
break;
case ICE_VSI_VF:
ctxt->flags = ICE_AQ_VSI_TYPE_VF;
/* VF number here is the absolute VF number (0-255) */
ctxt->vf_num = vsi->vf_id + hw->func_caps.vf_base_id;
break;
default:
ret = -ENODEV;
goto out;
}
/* Handle VLAN pruning for channel VSI if main VSI has VLAN
* prune enabled
*/
if (vsi->type == ICE_VSI_CHNL) {
struct ice_vsi *main_vsi;
main_vsi = ice_get_main_vsi(pf);
if (main_vsi && ice_vsi_is_vlan_pruning_ena(main_vsi))
ctxt->info.sw_flags2 |=
ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
else
ctxt->info.sw_flags2 &=
~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
}
ice_set_dflt_vsi_ctx(ctxt);
if (test_bit(ICE_FLAG_FD_ENA, pf->flags))
ice_set_fd_vsi_ctx(ctxt, vsi);
/* if the switch is in VEB mode, allow VSI loopback */
if (vsi->vsw->bridge_mode == BRIDGE_MODE_VEB)
ctxt->info.sw_flags |= ICE_AQ_VSI_SW_FLAG_ALLOW_LB;
/* Set LUT type and HASH type if RSS is enabled */
if (test_bit(ICE_FLAG_RSS_ENA, pf->flags) &&
vsi->type != ICE_VSI_CTRL) {
ice_set_rss_vsi_ctx(ctxt, vsi);
/* if updating VSI context, make sure to set valid_section:
* to indicate which section of VSI context being updated
*/
if (!init_vsi)
ctxt->info.valid_sections |=
cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID);
}
ctxt->info.sw_id = vsi->port_info->sw_id;
if (vsi->type == ICE_VSI_CHNL) {
ice_chnl_vsi_setup_q_map(vsi, ctxt);
} else {
ice_vsi_setup_q_map(vsi, ctxt);
if (!init_vsi) /* means VSI being updated */
/* must to indicate which section of VSI context are
* being modified
*/
ctxt->info.valid_sections |=
cpu_to_le16(ICE_AQ_VSI_PROP_RXQ_MAP_VALID);
}
/* enable/disable MAC and VLAN anti-spoof when spoofchk is on/off
* respectively
*/
if (vsi->type == ICE_VSI_VF) {
ctxt->info.valid_sections |=
cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
if (pf->vf[vsi->vf_id].spoofchk) {
ctxt->info.sec_flags |=
ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF |
(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);
} else {
ctxt->info.sec_flags &=
~(ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF |
(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S));
}
}
/* Allow control frames out of main VSI */
if (vsi->type == ICE_VSI_PF) {
ctxt->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD;
ctxt->info.valid_sections |=
cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
}
if (init_vsi) {
ret = ice_add_vsi(hw, vsi->idx, ctxt, NULL);
if (ret) {
dev_err(dev, "Add VSI failed, err %d\n", ret);
ret = -EIO;
goto out;
}
} else {
ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
if (ret) {
dev_err(dev, "Update VSI failed, err %d\n", ret);
ret = -EIO;
goto out;
}
}
/* keep context for update VSI operations */
vsi->info = ctxt->info;
/* record VSI number returned */
vsi->vsi_num = ctxt->vsi_num;
out:
kfree(ctxt);
return ret;
}
/**
* ice_free_res - free a block of resources
* @res: pointer to the resource
* @index: starting index previously returned by ice_get_res
* @id: identifier to track owner
*
* Returns number of resources freed
*/
int ice_free_res(struct ice_res_tracker *res, u16 index, u16 id)
{
int count = 0;
int i;
if (!res || index >= res->end)
return -EINVAL;
id |= ICE_RES_VALID_BIT;
for (i = index; i < res->end && res->list[i] == id; i++) {
res->list[i] = 0;
count++;
}
return count;
}
/**
* ice_search_res - Search the tracker for a block of resources
* @res: pointer to the resource
* @needed: size of the block needed
* @id: identifier to track owner
*
* Returns the base item index of the block, or -ENOMEM for error
*/
static int ice_search_res(struct ice_res_tracker *res, u16 needed, u16 id)
{
u16 start = 0, end = 0;
if (needed > res->end)
return -ENOMEM;
id |= ICE_RES_VALID_BIT;
do {
/* skip already allocated entries */
if (res->list[end++] & ICE_RES_VALID_BIT) {
start = end;
if ((start + needed) > res->end)
break;
}
if (end == (start + needed)) {
int i = start;
/* there was enough, so assign it to the requestor */
while (i != end)
res->list[i++] = id;
return start;
}
} while (end < res->end);
return -ENOMEM;
}
/**
* ice_get_free_res_count - Get free count from a resource tracker
* @res: Resource tracker instance
*/
static u16 ice_get_free_res_count(struct ice_res_tracker *res)
{
u16 i, count = 0;
for (i = 0; i < res->end; i++)
if (!(res->list[i] & ICE_RES_VALID_BIT))
count++;
return count;
}
/**
* ice_get_res - get a block of resources
* @pf: board private structure
* @res: pointer to the resource
* @needed: size of the block needed
* @id: identifier to track owner
*
* Returns the base item index of the block, or negative for error
*/
int
ice_get_res(struct ice_pf *pf, struct ice_res_tracker *res, u16 needed, u16 id)
{
if (!res || !pf)
return -EINVAL;
if (!needed || needed > res->num_entries || id >= ICE_RES_VALID_BIT) {
dev_err(ice_pf_to_dev(pf), "param err: needed=%d, num_entries = %d id=0x%04x\n",
needed, res->num_entries, id);
return -EINVAL;
}
return ice_search_res(res, needed, id);
}
/**
* ice_vsi_setup_vector_base - Set up the base vector for the given VSI
* @vsi: ptr to the VSI
*
* This should only be called after ice_vsi_alloc() which allocates the
* corresponding SW VSI structure and initializes num_queue_pairs for the
* newly allocated VSI.
*
* Returns 0 on success or negative on failure
*/
static int ice_vsi_setup_vector_base(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
struct device *dev;
u16 num_q_vectors;
int base;
dev = ice_pf_to_dev(pf);
/* SRIOV doesn't grab irq_tracker entries for each VSI */
if (vsi->type == ICE_VSI_VF)
return 0;
if (vsi->type == ICE_VSI_CHNL)
return 0;
if (vsi->base_vector) {
dev_dbg(dev, "VSI %d has non-zero base vector %d\n",
vsi->vsi_num, vsi->base_vector);
return -EEXIST;
}
num_q_vectors = vsi->num_q_vectors;
/* reserve slots from OS requested IRQs */
if (vsi->type == ICE_VSI_CTRL && vsi->vf_id != ICE_INVAL_VFID) {
int i;
ice_for_each_vf(pf, i) {
struct ice_vf *vf = &pf->vf[i];
if (i != vsi->vf_id && vf->ctrl_vsi_idx != ICE_NO_VSI) {
base = pf->vsi[vf->ctrl_vsi_idx]->base_vector;
break;
}
}
if (i == pf->num_alloc_vfs)
base = ice_get_res(pf, pf->irq_tracker, num_q_vectors,
ICE_RES_VF_CTRL_VEC_ID);
} else {
base = ice_get_res(pf, pf->irq_tracker, num_q_vectors,
vsi->idx);
}
if (base < 0) {
dev_err(dev, "%d MSI-X interrupts available. %s %d failed to get %d MSI-X vectors\n",
ice_get_free_res_count(pf->irq_tracker),
ice_vsi_type_str(vsi->type), vsi->idx, num_q_vectors);
return -ENOENT;
}
vsi->base_vector = (u16)base;
pf->num_avail_sw_msix -= num_q_vectors;
return 0;
}
/**
* ice_vsi_clear_rings - Deallocates the Tx and Rx rings for VSI
* @vsi: the VSI having rings deallocated
*/
static void ice_vsi_clear_rings(struct ice_vsi *vsi)
{
int i;
/* Avoid stale references by clearing map from vector to ring */
if (vsi->q_vectors) {
ice_for_each_q_vector(vsi, i) {
struct ice_q_vector *q_vector = vsi->q_vectors[i];
if (q_vector) {
q_vector->tx.tx_ring = NULL;
q_vector->rx.rx_ring = NULL;
}
}
}
if (vsi->tx_rings) {
ice_for_each_alloc_txq(vsi, i) {
if (vsi->tx_rings[i]) {
kfree_rcu(vsi->tx_rings[i], rcu);
WRITE_ONCE(vsi->tx_rings[i], NULL);
}
}
}
if (vsi->rx_rings) {
ice_for_each_alloc_rxq(vsi, i) {
if (vsi->rx_rings[i]) {
kfree_rcu(vsi->rx_rings[i], rcu);
WRITE_ONCE(vsi->rx_rings[i], NULL);
}
}
}
}
/**
* ice_vsi_alloc_rings - Allocates Tx and Rx rings for the VSI
* @vsi: VSI which is having rings allocated
*/
static int ice_vsi_alloc_rings(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
struct device *dev;
u16 i;
dev = ice_pf_to_dev(pf);
/* Allocate Tx rings */
ice_for_each_alloc_txq(vsi, i) {
struct ice_tx_ring *ring;
/* allocate with kzalloc(), free with kfree_rcu() */
ring = kzalloc(sizeof(*ring), GFP_KERNEL);
if (!ring)
goto err_out;
ring->q_index = i;
ring->reg_idx = vsi->txq_map[i];
ring->vsi = vsi;
ring->tx_tstamps = &pf->ptp.port.tx;
ring->dev = dev;
ring->count = vsi->num_tx_desc;
WRITE_ONCE(vsi->tx_rings[i], ring);
}
/* Allocate Rx rings */
ice_for_each_alloc_rxq(vsi, i) {
struct ice_rx_ring *ring;
/* allocate with kzalloc(), free with kfree_rcu() */
ring = kzalloc(sizeof(*ring), GFP_KERNEL);
if (!ring)
goto err_out;
ring->q_index = i;
ring->reg_idx = vsi->rxq_map[i];
ring->vsi = vsi;
ring->netdev = vsi->netdev;
ring->dev = dev;
ring->count = vsi->num_rx_desc;
WRITE_ONCE(vsi->rx_rings[i], ring);
}
return 0;
err_out:
ice_vsi_clear_rings(vsi);
return -ENOMEM;
}
/**
* ice_vsi_manage_rss_lut - disable/enable RSS
* @vsi: the VSI being changed
* @ena: boolean value indicating if this is an enable or disable request
*
* In the event of disable request for RSS, this function will zero out RSS
* LUT, while in the event of enable request for RSS, it will reconfigure RSS
* LUT.
*/
void ice_vsi_manage_rss_lut(struct ice_vsi *vsi, bool ena)
{
u8 *lut;
lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
if (!lut)
return;
if (ena) {
if (vsi->rss_lut_user)
memcpy(lut, vsi->rss_lut_user, vsi->rss_table_size);
else
ice_fill_rss_lut(lut, vsi->rss_table_size,
vsi->rss_size);
}
ice_set_rss_lut(vsi, lut, vsi->rss_table_size);
kfree(lut);
}
/**
* ice_vsi_cfg_rss_lut_key - Configure RSS params for a VSI
* @vsi: VSI to be configured
*/
int ice_vsi_cfg_rss_lut_key(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
struct device *dev;
u8 *lut, *key;
int err;
dev = ice_pf_to_dev(pf);
if (vsi->type == ICE_VSI_PF && vsi->ch_rss_size &&
(test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))) {
vsi->rss_size = min_t(u16, vsi->rss_size, vsi->ch_rss_size);
} else {
vsi->rss_size = min_t(u16, vsi->rss_size, vsi->num_rxq);
/* If orig_rss_size is valid and it is less than determined
* main VSI's rss_size, update main VSI's rss_size to be
* orig_rss_size so that when tc-qdisc is deleted, main VSI
* RSS table gets programmed to be correct (whatever it was
* to begin with (prior to setup-tc for ADQ config)
*/
if (vsi->orig_rss_size && vsi->rss_size < vsi->orig_rss_size &&
vsi->orig_rss_size <= vsi->num_rxq) {
vsi->rss_size = vsi->orig_rss_size;
/* now orig_rss_size is used, reset it to zero */
vsi->orig_rss_size = 0;
}
}
lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
if (!lut)
return -ENOMEM;
if (vsi->rss_lut_user)
memcpy(lut, vsi->rss_lut_user, vsi->rss_table_size);
else
ice_fill_rss_lut(lut, vsi->rss_table_size, vsi->rss_size);
err = ice_set_rss_lut(vsi, lut, vsi->rss_table_size);
if (err) {
dev_err(dev, "set_rss_lut failed, error %d\n", err);
goto ice_vsi_cfg_rss_exit;
}
key = kzalloc(ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE, GFP_KERNEL);
if (!key) {
err = -ENOMEM;
goto ice_vsi_cfg_rss_exit;
}
if (vsi->rss_hkey_user)
memcpy(key, vsi->rss_hkey_user, ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE);
else
netdev_rss_key_fill((void *)key, ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE);
err = ice_set_rss_key(vsi, key);
if (err)
dev_err(dev, "set_rss_key failed, error %d\n", err);
kfree(key);
ice_vsi_cfg_rss_exit:
kfree(lut);
return err;
}
/**
* ice_vsi_set_vf_rss_flow_fld - Sets VF VSI RSS input set for different flows
* @vsi: VSI to be configured
*
* This function will only be called during the VF VSI setup. Upon successful
* completion of package download, this function will configure default RSS
* input sets for VF VSI.
*/
static void ice_vsi_set_vf_rss_flow_fld(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
struct device *dev;
int status;
dev = ice_pf_to_dev(pf);
if (ice_is_safe_mode(pf)) {
dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n",
vsi->vsi_num);
return;
}
status = ice_add_avf_rss_cfg(&pf->hw, vsi->idx, ICE_DEFAULT_RSS_HENA);
if (status)
dev_dbg(dev, "ice_add_avf_rss_cfg failed for vsi = %d, error = %d\n",
vsi->vsi_num, status);
}
/**
* ice_vsi_set_rss_flow_fld - Sets RSS input set for different flows
* @vsi: VSI to be configured
*
* This function will only be called after successful download package call
* during initialization of PF. Since the downloaded package will erase the
* RSS section, this function will configure RSS input sets for different
* flow types. The last profile added has the highest priority, therefore 2
* tuple profiles (i.e. IPv4 src/dst) are added before 4 tuple profiles
* (i.e. IPv4 src/dst TCP src/dst port).
*/
static void ice_vsi_set_rss_flow_fld(struct ice_vsi *vsi)
{
u16 vsi_handle = vsi->idx, vsi_num = vsi->vsi_num;
struct ice_pf *pf = vsi->back;
struct ice_hw *hw = &pf->hw;
struct device *dev;
int status;
dev = ice_pf_to_dev(pf);
if (ice_is_safe_mode(pf)) {
dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n",
vsi_num);
return;
}
/* configure RSS for IPv4 with input set IP src/dst */
status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV4,
ICE_FLOW_SEG_HDR_IPV4);
if (status)
dev_dbg(dev, "ice_add_rss_cfg failed for ipv4 flow, vsi = %d, error = %d\n",
vsi_num, status);
/* configure RSS for IPv6 with input set IPv6 src/dst */
status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV6,
ICE_FLOW_SEG_HDR_IPV6);
if (status)
dev_dbg(dev, "ice_add_rss_cfg failed for ipv6 flow, vsi = %d, error = %d\n",
vsi_num, status);
/* configure RSS for tcp4 with input set IP src/dst, TCP src/dst */
status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_TCP_IPV4,
ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4);
if (status)
dev_dbg(dev, "ice_add_rss_cfg failed for tcp4 flow, vsi = %d, error = %d\n",
vsi_num, status);
/* configure RSS for udp4 with input set IP src/dst, UDP src/dst */
status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_UDP_IPV4,
ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4);
if (status)
dev_dbg(dev, "ice_add_rss_cfg failed for udp4 flow, vsi = %d, error = %d\n",
vsi_num, status);
/* configure RSS for sctp4 with input set IP src/dst */
status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV4,
ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4);
if (status)
dev_dbg(dev, "ice_add_rss_cfg failed for sctp4 flow, vsi = %d, error = %d\n",
vsi_num, status);
/* configure RSS for tcp6 with input set IPv6 src/dst, TCP src/dst */
status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_TCP_IPV6,
ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6);
if (status)
dev_dbg(dev, "ice_add_rss_cfg failed for tcp6 flow, vsi = %d, error = %d\n",
vsi_num, status);
/* configure RSS for udp6 with input set IPv6 src/dst, UDP src/dst */
status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_UDP_IPV6,
ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6);
if (status)
dev_dbg(dev, "ice_add_rss_cfg failed for udp6 flow, vsi = %d, error = %d\n",
vsi_num, status);
/* configure RSS for sctp6 with input set IPv6 src/dst */
status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV6,
ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6);
if (status)
dev_dbg(dev, "ice_add_rss_cfg failed for sctp6 flow, vsi = %d, error = %d\n",
vsi_num, status);
}
/**
* ice_pf_state_is_nominal - checks the PF for nominal state
* @pf: pointer to PF to check
*
* Check the PF's state for a collection of bits that would indicate
* the PF is in a state that would inhibit normal operation for
* driver functionality.
*
* Returns true if PF is in a nominal state, false otherwise
*/
bool ice_pf_state_is_nominal(struct ice_pf *pf)
{
DECLARE_BITMAP(check_bits, ICE_STATE_NBITS) = { 0 };
if (!pf)
return false;
bitmap_set(check_bits, 0, ICE_STATE_NOMINAL_CHECK_BITS);
if (bitmap_intersects(pf->state, check_bits, ICE_STATE_NBITS))
return false;
return true;
}
/**
* ice_update_eth_stats - Update VSI-specific ethernet statistics counters
* @vsi: the VSI to be updated
*/
void ice_update_eth_stats(struct ice_vsi *vsi)
{
struct ice_eth_stats *prev_es, *cur_es;
struct ice_hw *hw = &vsi->back->hw;
u16 vsi_num = vsi->vsi_num; /* HW absolute index of a VSI */
prev_es = &vsi->eth_stats_prev;
cur_es = &vsi->eth_stats;
ice_stat_update40(hw, GLV_GORCL(vsi_num), vsi->stat_offsets_loaded,
&prev_es->rx_bytes, &cur_es->rx_bytes);
ice_stat_update40(hw, GLV_UPRCL(vsi_num), vsi->stat_offsets_loaded,
&prev_es->rx_unicast, &cur_es->rx_unicast);
ice_stat_update40(hw, GLV_MPRCL(vsi_num), vsi->stat_offsets_loaded,
&prev_es->rx_multicast, &cur_es->rx_multicast);
ice_stat_update40(hw, GLV_BPRCL(vsi_num), vsi->stat_offsets_loaded,
&prev_es->rx_broadcast, &cur_es->rx_broadcast);
ice_stat_update32(hw, GLV_RDPC(vsi_num), vsi->stat_offsets_loaded,
&prev_es->rx_discards, &cur_es->rx_discards);
ice_stat_update40(hw, GLV_GOTCL(vsi_num), vsi->stat_offsets_loaded,
&prev_es->tx_bytes, &cur_es->tx_bytes);
ice_stat_update40(hw, GLV_UPTCL(vsi_num), vsi->stat_offsets_loaded,
&prev_es->tx_unicast, &cur_es->tx_unicast);
ice_stat_update40(hw, GLV_MPTCL(vsi_num), vsi->stat_offsets_loaded,
&prev_es->tx_multicast, &cur_es->tx_multicast);
ice_stat_update40(hw, GLV_BPTCL(vsi_num), vsi->stat_offsets_loaded,
&prev_es->tx_broadcast, &cur_es->tx_broadcast);
ice_stat_update32(hw, GLV_TEPC(vsi_num), vsi->stat_offsets_loaded,
&prev_es->tx_errors, &cur_es->tx_errors);
vsi->stat_offsets_loaded = true;
}
/**
* ice_vsi_add_vlan - Add VSI membership for given VLAN
* @vsi: the VSI being configured
* @vid: VLAN ID to be added
* @action: filter action to be performed on match
*/
int
ice_vsi_add_vlan(struct ice_vsi *vsi, u16 vid, enum ice_sw_fwd_act_type action)
{
struct ice_pf *pf = vsi->back;
struct device *dev;
int err = 0;
dev = ice_pf_to_dev(pf);
if (!ice_fltr_add_vlan(vsi, vid, action)) {
vsi->num_vlan++;
} else {
err = -ENODEV;
dev_err(dev, "Failure Adding VLAN %d on VSI %i\n", vid,
vsi->vsi_num);
}
return err;
}
/**
* ice_vsi_kill_vlan - Remove VSI membership for a given VLAN
* @vsi: the VSI being configured
* @vid: VLAN ID to be removed
*
* Returns 0 on success and negative on failure
*/
int ice_vsi_kill_vlan(struct ice_vsi *vsi, u16 vid)
{
struct ice_pf *pf = vsi->back;
struct device *dev;
int err;
dev = ice_pf_to_dev(pf);
err = ice_fltr_remove_vlan(vsi, vid, ICE_FWD_TO_VSI);
if (!err) {
vsi->num_vlan--;
} else if (err == -ENOENT) {
dev_dbg(dev, "Failed to remove VLAN %d on VSI %i, it does not exist, error: %d\n",
vid, vsi->vsi_num, err);
err = 0;
} else {
dev_err(dev, "Error removing VLAN %d on vsi %i error: %d\n",
vid, vsi->vsi_num, err);
}
return err;
}
/**
* ice_vsi_cfg_frame_size - setup max frame size and Rx buffer length
* @vsi: VSI
*/
void ice_vsi_cfg_frame_size(struct ice_vsi *vsi)
{
if (!vsi->netdev || test_bit(ICE_FLAG_LEGACY_RX, vsi->back->flags)) {
vsi->max_frame = ICE_AQ_SET_MAC_FRAME_SIZE_MAX;
vsi->rx_buf_len = ICE_RXBUF_2048;
#if (PAGE_SIZE < 8192)
} else if (!ICE_2K_TOO_SMALL_WITH_PADDING &&
(vsi->netdev->mtu <= ETH_DATA_LEN)) {
vsi->max_frame = ICE_RXBUF_1536 - NET_IP_ALIGN;
vsi->rx_buf_len = ICE_RXBUF_1536 - NET_IP_ALIGN;
#endif
} else {
vsi->max_frame = ICE_AQ_SET_MAC_FRAME_SIZE_MAX;
#if (PAGE_SIZE < 8192)
vsi->rx_buf_len = ICE_RXBUF_3072;
#else
vsi->rx_buf_len = ICE_RXBUF_2048;
#endif
}
}
/**
* ice_write_qrxflxp_cntxt - write/configure QRXFLXP_CNTXT register
* @hw: HW pointer
* @pf_q: index of the Rx queue in the PF's queue space
* @rxdid: flexible descriptor RXDID
* @prio: priority for the RXDID for this queue
* @ena_ts: true to enable timestamp and false to disable timestamp
*/
void
ice_write_qrxflxp_cntxt(struct ice_hw *hw, u16 pf_q, u32 rxdid, u32 prio,
bool ena_ts)
{
int regval = rd32(hw, QRXFLXP_CNTXT(pf_q));
/* clear any previous values */
regval &= ~(QRXFLXP_CNTXT_RXDID_IDX_M |
QRXFLXP_CNTXT_RXDID_PRIO_M |
QRXFLXP_CNTXT_TS_M);
regval |= (rxdid << QRXFLXP_CNTXT_RXDID_IDX_S) &
QRXFLXP_CNTXT_RXDID_IDX_M;
regval |= (prio << QRXFLXP_CNTXT_RXDID_PRIO_S) &
QRXFLXP_CNTXT_RXDID_PRIO_M;
if (ena_ts)
/* Enable TimeSync on this queue */
regval |= QRXFLXP_CNTXT_TS_M;
wr32(hw, QRXFLXP_CNTXT(pf_q), regval);
}
int ice_vsi_cfg_single_rxq(struct ice_vsi *vsi, u16 q_idx)
{
if (q_idx >= vsi->num_rxq)
return -EINVAL;
return ice_vsi_cfg_rxq(vsi->rx_rings[q_idx]);
}
int ice_vsi_cfg_single_txq(struct ice_vsi *vsi, struct ice_tx_ring **tx_rings, u16 q_idx)
{
struct ice_aqc_add_tx_qgrp *qg_buf;
int err;
if (q_idx >= vsi->alloc_txq || !tx_rings || !tx_rings[q_idx])
return -EINVAL;
qg_buf = kzalloc(struct_size(qg_buf, txqs, 1), GFP_KERNEL);
if (!qg_buf)
return -ENOMEM;
qg_buf->num_txqs = 1;
err = ice_vsi_cfg_txq(vsi, tx_rings[q_idx], qg_buf);
kfree(qg_buf);
return err;
}
/**
* ice_vsi_cfg_rxqs - Configure the VSI for Rx
* @vsi: the VSI being configured
*
* Return 0 on success and a negative value on error
* Configure the Rx VSI for operation.
*/
int ice_vsi_cfg_rxqs(struct ice_vsi *vsi)
{
u16 i;
if (vsi->type == ICE_VSI_VF)
goto setup_rings;
ice_vsi_cfg_frame_size(vsi);
setup_rings:
/* set up individual rings */
ice_for_each_rxq(vsi, i) {
int err = ice_vsi_cfg_rxq(vsi->rx_rings[i]);
if (err)
return err;
}
return 0;
}
/**
* ice_vsi_cfg_txqs - Configure the VSI for Tx
* @vsi: the VSI being configured
* @rings: Tx ring array to be configured
* @count: number of Tx ring array elements
*
* Return 0 on success and a negative value on error
* Configure the Tx VSI for operation.
*/
static int
ice_vsi_cfg_txqs(struct ice_vsi *vsi, struct ice_tx_ring **rings, u16 count)
{
struct ice_aqc_add_tx_qgrp *qg_buf;
u16 q_idx = 0;
int err = 0;
qg_buf = kzalloc(struct_size(qg_buf, txqs, 1), GFP_KERNEL);
if (!qg_buf)
return -ENOMEM;
qg_buf->num_txqs = 1;
for (q_idx = 0; q_idx < count; q_idx++) {
err = ice_vsi_cfg_txq(vsi, rings[q_idx], qg_buf);
if (err)
goto err_cfg_txqs;
}
err_cfg_txqs:
kfree(qg_buf);
return err;
}
/**
* ice_vsi_cfg_lan_txqs - Configure the VSI for Tx
* @vsi: the VSI being configured
*
* Return 0 on success and a negative value on error
* Configure the Tx VSI for operation.
*/
int ice_vsi_cfg_lan_txqs(struct ice_vsi *vsi)
{
return ice_vsi_cfg_txqs(vsi, vsi->tx_rings, vsi->num_txq);
}
/**
* ice_vsi_cfg_xdp_txqs - Configure Tx queues dedicated for XDP in given VSI
* @vsi: the VSI being configured
*
* Return 0 on success and a negative value on error
* Configure the Tx queues dedicated for XDP in given VSI for operation.
*/
int ice_vsi_cfg_xdp_txqs(struct ice_vsi *vsi)
{
int ret;
int i;
ret = ice_vsi_cfg_txqs(vsi, vsi->xdp_rings, vsi->num_xdp_txq);
if (ret)
return ret;
ice_for_each_xdp_txq(vsi, i)
vsi->xdp_rings[i]->xsk_pool = ice_tx_xsk_pool(vsi->xdp_rings[i]);
return ret;
}
/**
* ice_intrl_usec_to_reg - convert interrupt rate limit to register value
* @intrl: interrupt rate limit in usecs
* @gran: interrupt rate limit granularity in usecs
*
* This function converts a decimal interrupt rate limit in usecs to the format
* expected by firmware.
*/
static u32 ice_intrl_usec_to_reg(u8 intrl, u8 gran)
{
u32 val = intrl / gran;
if (val)
return val | GLINT_RATE_INTRL_ENA_M;
return 0;
}
/**
* ice_write_intrl - write throttle rate limit to interrupt specific register
* @q_vector: pointer to interrupt specific structure
* @intrl: throttle rate limit in microseconds to write
*/
void ice_write_intrl(struct ice_q_vector *q_vector, u8 intrl)
{
struct ice_hw *hw = &q_vector->vsi->back->hw;
wr32(hw, GLINT_RATE(q_vector->reg_idx),
ice_intrl_usec_to_reg(intrl, ICE_INTRL_GRAN_ABOVE_25));
}
static struct ice_q_vector *ice_pull_qvec_from_rc(struct ice_ring_container *rc)
{
switch (rc->type) {
case ICE_RX_CONTAINER:
if (rc->rx_ring)
return rc->rx_ring->q_vector;
break;
case ICE_TX_CONTAINER:
if (rc->tx_ring)
return rc->tx_ring->q_vector;
break;
default:
break;
}
return NULL;
}
/**
* __ice_write_itr - write throttle rate to register
* @q_vector: pointer to interrupt data structure
* @rc: pointer to ring container
* @itr: throttle rate in microseconds to write
*/
static void __ice_write_itr(struct ice_q_vector *q_vector,
struct ice_ring_container *rc, u16 itr)
{
struct ice_hw *hw = &q_vector->vsi->back->hw;
wr32(hw, GLINT_ITR(rc->itr_idx, q_vector->reg_idx),
ITR_REG_ALIGN(itr) >> ICE_ITR_GRAN_S);
}
/**
* ice_write_itr - write throttle rate to queue specific register
* @rc: pointer to ring container
* @itr: throttle rate in microseconds to write
*/
void ice_write_itr(struct ice_ring_container *rc, u16 itr)
{
struct ice_q_vector *q_vector;
q_vector = ice_pull_qvec_from_rc(rc);
if (!q_vector)
return;
__ice_write_itr(q_vector, rc, itr);
}
/**
* ice_set_q_vector_intrl - set up interrupt rate limiting
* @q_vector: the vector to be configured
*
* Interrupt rate limiting is local to the vector, not per-queue so we must
* detect if either ring container has dynamic moderation enabled to decide
* what to set the interrupt rate limit to via INTRL settings. In the case that
* dynamic moderation is disabled on both, write the value with the cached
* setting to make sure INTRL register matches the user visible value.
*/
void ice_set_q_vector_intrl(struct ice_q_vector *q_vector)
{
if (ITR_IS_DYNAMIC(&q_vector->tx) || ITR_IS_DYNAMIC(&q_vector->rx)) {
/* in the case of dynamic enabled, cap each vector to no more
* than (4 us) 250,000 ints/sec, which allows low latency
* but still less than 500,000 interrupts per second, which
* reduces CPU a bit in the case of the lowest latency
* setting. The 4 here is a value in microseconds.
*/
ice_write_intrl(q_vector, 4);
} else {
ice_write_intrl(q_vector, q_vector->intrl);
}
}
/**
* ice_vsi_cfg_msix - MSIX mode Interrupt Config in the HW
* @vsi: the VSI being configured
*
* This configures MSIX mode interrupts for the PF VSI, and should not be used
* for the VF VSI.
*/
void ice_vsi_cfg_msix(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
struct ice_hw *hw = &pf->hw;
u16 txq = 0, rxq = 0;
int i, q;
ice_for_each_q_vector(vsi, i) {
struct ice_q_vector *q_vector = vsi->q_vectors[i];
u16 reg_idx = q_vector->reg_idx;
ice_cfg_itr(hw, q_vector);
/* Both Transmit Queue Interrupt Cause Control register
* and Receive Queue Interrupt Cause control register
* expects MSIX_INDX field to be the vector index
* within the function space and not the absolute
* vector index across PF or across device.
* For SR-IOV VF VSIs queue vector index always starts
* with 1 since first vector index(0) is used for OICR
* in VF space. Since VMDq and other PF VSIs are within
* the PF function space, use the vector index that is
* tracked for this PF.
*/
for (q = 0; q < q_vector->num_ring_tx; q++) {
ice_cfg_txq_interrupt(vsi, txq, reg_idx,
q_vector->tx.itr_idx);
txq++;
}
for (q = 0; q < q_vector->num_ring_rx; q++) {
ice_cfg_rxq_interrupt(vsi, rxq, reg_idx,
q_vector->rx.itr_idx);
rxq++;
}
}
}
/**
* ice_vsi_manage_vlan_insertion - Manage VLAN insertion for the VSI for Tx
* @vsi: the VSI being changed
*/
int ice_vsi_manage_vlan_insertion(struct ice_vsi *vsi)
{
struct ice_hw *hw = &vsi->back->hw;
struct ice_vsi_ctx *ctxt;
int ret;
ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
if (!ctxt)
return -ENOMEM;
/* Here we are configuring the VSI to let the driver add VLAN tags by
* setting vlan_flags to ICE_AQ_VSI_VLAN_MODE_ALL. The actual VLAN tag
* insertion happens in the Tx hot path, in ice_tx_map.
*/
ctxt->info.vlan_flags = ICE_AQ_VSI_VLAN_MODE_ALL;
/* Preserve existing VLAN strip setting */
ctxt->info.vlan_flags |= (vsi->info.vlan_flags &
ICE_AQ_VSI_VLAN_EMOD_M);
ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID);
ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
if (ret) {
dev_err(ice_pf_to_dev(vsi->back), "update VSI for VLAN insert failed, err %d aq_err %s\n",
ret, ice_aq_str(hw->adminq.sq_last_status));
goto out;
}
vsi->info.vlan_flags = ctxt->info.vlan_flags;
out:
kfree(ctxt);
return ret;
}
/**
* ice_vsi_manage_vlan_stripping - Manage VLAN stripping for the VSI for Rx
* @vsi: the VSI being changed
* @ena: boolean value indicating if this is a enable or disable request
*/
int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena)
{
struct ice_hw *hw = &vsi->back->hw;
struct ice_vsi_ctx *ctxt;
int ret;
/* do not allow modifying VLAN stripping when a port VLAN is configured
* on this VSI
*/
if (vsi->info.pvid)
return 0;
ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
if (!ctxt)
return -ENOMEM;
/* Here we are configuring what the VSI should do with the VLAN tag in
* the Rx packet. We can either leave the tag in the packet or put it in
* the Rx descriptor.
*/
if (ena)
/* Strip VLAN tag from Rx packet and put it in the desc */
ctxt->info.vlan_flags = ICE_AQ_VSI_VLAN_EMOD_STR_BOTH;
else
/* Disable stripping. Leave tag in packet */
ctxt->info.vlan_flags = ICE_AQ_VSI_VLAN_EMOD_NOTHING;
/* Allow all packets untagged/tagged */
ctxt->info.vlan_flags |= ICE_AQ_VSI_VLAN_MODE_ALL;
ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID);
ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
if (ret) {
dev_err(ice_pf_to_dev(vsi->back), "update VSI for VLAN strip failed, ena = %d err %d aq_err %s\n",
ena, ret, ice_aq_str(hw->adminq.sq_last_status));
goto out;
}
vsi->info.vlan_flags = ctxt->info.vlan_flags;
out:
kfree(ctxt);
return ret;
}
/**
* ice_vsi_start_all_rx_rings - start/enable all of a VSI's Rx rings
* @vsi: the VSI whose rings are to be enabled
*
* Returns 0 on success and a negative value on error
*/
int ice_vsi_start_all_rx_rings(struct ice_vsi *vsi)
{
return ice_vsi_ctrl_all_rx_rings(vsi, true);
}
/**
* ice_vsi_stop_all_rx_rings - stop/disable all of a VSI's Rx rings
* @vsi: the VSI whose rings are to be disabled
*
* Returns 0 on success and a negative value on error
*/
int ice_vsi_stop_all_rx_rings(struct ice_vsi *vsi)
{
return ice_vsi_ctrl_all_rx_rings(vsi, false);
}
/**
* ice_vsi_stop_tx_rings - Disable Tx rings
* @vsi: the VSI being configured
* @rst_src: reset source
* @rel_vmvf_num: Relative ID of VF/VM
* @rings: Tx ring array to be stopped
* @count: number of Tx ring array elements
*/
static int
ice_vsi_stop_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src,
u16 rel_vmvf_num, struct ice_tx_ring **rings, u16 count)
{
u16 q_idx;
if (vsi->num_txq > ICE_LAN_TXQ_MAX_QDIS)
return -EINVAL;
for (q_idx = 0; q_idx < count; q_idx++) {
struct ice_txq_meta txq_meta = { };
int status;
if (!rings || !rings[q_idx])
return -EINVAL;
ice_fill_txq_meta(vsi, rings[q_idx], &txq_meta);
status = ice_vsi_stop_tx_ring(vsi, rst_src, rel_vmvf_num,
rings[q_idx], &txq_meta);
if (status)
return status;
}
return 0;
}
/**
* ice_vsi_stop_lan_tx_rings - Disable LAN Tx rings
* @vsi: the VSI being configured
* @rst_src: reset source
* @rel_vmvf_num: Relative ID of VF/VM
*/
int
ice_vsi_stop_lan_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src,
u16 rel_vmvf_num)
{
return ice_vsi_stop_tx_rings(vsi, rst_src, rel_vmvf_num, vsi->tx_rings, vsi->num_txq);
}
/**
* ice_vsi_stop_xdp_tx_rings - Disable XDP Tx rings
* @vsi: the VSI being configured
*/
int ice_vsi_stop_xdp_tx_rings(struct ice_vsi *vsi)
{
return ice_vsi_stop_tx_rings(vsi, ICE_NO_RESET, 0, vsi->xdp_rings, vsi->num_xdp_txq);
}
/**
* ice_vsi_is_vlan_pruning_ena - check if VLAN pruning is enabled or not
* @vsi: VSI to check whether or not VLAN pruning is enabled.
*
* returns true if Rx VLAN pruning is enabled and false otherwise.
*/
bool ice_vsi_is_vlan_pruning_ena(struct ice_vsi *vsi)
{
if (!vsi)
return false;
return (vsi->info.sw_flags2 & ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA);
}
/**
* ice_cfg_vlan_pruning - enable or disable VLAN pruning on the VSI
* @vsi: VSI to enable or disable VLAN pruning on
* @ena: set to true to enable VLAN pruning and false to disable it
*
* returns 0 if VSI is updated, negative otherwise
*/
int ice_cfg_vlan_pruning(struct ice_vsi *vsi, bool ena)
{
struct ice_vsi_ctx *ctxt;
struct ice_pf *pf;
int status;
if (!vsi)
return -EINVAL;
/* Don't enable VLAN pruning if the netdev is currently in promiscuous
* mode. VLAN pruning will be enabled when the interface exits
* promiscuous mode if any VLAN filters are active.
*/
if (vsi->netdev && vsi->netdev->flags & IFF_PROMISC && ena)
return 0;
pf = vsi->back;
ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
if (!ctxt)
return -ENOMEM;
ctxt->info = vsi->info;
if (ena)
ctxt->info.sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
else
ctxt->info.sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SW_VALID);
status = ice_update_vsi(&pf->hw, vsi->idx, ctxt, NULL);
if (status) {
netdev_err(vsi->netdev, "%sabling VLAN pruning on VSI handle: %d, VSI HW ID: %d failed, err = %d, aq_err = %s\n",
ena ? "En" : "Dis", vsi->idx, vsi->vsi_num,
status, ice_aq_str(pf->hw.adminq.sq_last_status));
goto err_out;
}
vsi->info.sw_flags2 = ctxt->info.sw_flags2;
kfree(ctxt);
return 0;
err_out:
kfree(ctxt);
return -EIO;
}
static void ice_vsi_set_tc_cfg(struct ice_vsi *vsi)
{
if (!test_bit(ICE_FLAG_DCB_ENA, vsi->back->flags)) {
vsi->tc_cfg.ena_tc = ICE_DFLT_TRAFFIC_CLASS;
vsi->tc_cfg.numtc = 1;
return;
}
/* set VSI TC information based on DCB config */
ice_vsi_set_dcb_tc_cfg(vsi);
}
/**
* ice_vsi_set_q_vectors_reg_idx - set the HW register index for all q_vectors
* @vsi: VSI to set the q_vectors register index on
*/
static int
ice_vsi_set_q_vectors_reg_idx(struct ice_vsi *vsi)
{
u16 i;
if (!vsi || !vsi->q_vectors)
return -EINVAL;
ice_for_each_q_vector(vsi, i) {
struct ice_q_vector *q_vector = vsi->q_vectors[i];
if (!q_vector) {
dev_err(ice_pf_to_dev(vsi->back), "Failed to set reg_idx on q_vector %d VSI %d\n",
i, vsi->vsi_num);
goto clear_reg_idx;
}
if (vsi->type == ICE_VSI_VF) {
struct ice_vf *vf = &vsi->back->vf[vsi->vf_id];
q_vector->reg_idx = ice_calc_vf_reg_idx(vf, q_vector);
} else {
q_vector->reg_idx =
q_vector->v_idx + vsi->base_vector;
}
}
return 0;
clear_reg_idx:
ice_for_each_q_vector(vsi, i) {
struct ice_q_vector *q_vector = vsi->q_vectors[i];
if (q_vector)
q_vector->reg_idx = 0;
}
return -EINVAL;
}
/**
* ice_cfg_sw_lldp - Config switch rules for LLDP packet handling
* @vsi: the VSI being configured
* @tx: bool to determine Tx or Rx rule
* @create: bool to determine create or remove Rule
*/
void ice_cfg_sw_lldp(struct ice_vsi *vsi, bool tx, bool create)
{
int (*eth_fltr)(struct ice_vsi *v, u16 type, u16 flag,
enum ice_sw_fwd_act_type act);
struct ice_pf *pf = vsi->back;
struct device *dev;
int status;
dev = ice_pf_to_dev(pf);
eth_fltr = create ? ice_fltr_add_eth : ice_fltr_remove_eth;
if (tx) {
status = eth_fltr(vsi, ETH_P_LLDP, ICE_FLTR_TX,
ICE_DROP_PACKET);
} else {
if (ice_fw_supports_lldp_fltr_ctrl(&pf->hw)) {
status = ice_lldp_fltr_add_remove(&pf->hw, vsi->vsi_num,
create);
} else {
status = eth_fltr(vsi, ETH_P_LLDP, ICE_FLTR_RX,
ICE_FWD_TO_VSI);
}
}
if (status)
dev_dbg(dev, "Fail %s %s LLDP rule on VSI %i error: %d\n",
create ? "adding" : "removing", tx ? "TX" : "RX",
vsi->vsi_num, status);
}
/**
* ice_set_agg_vsi - sets up scheduler aggregator node and move VSI into it
* @vsi: pointer to the VSI
*
* This function will allocate new scheduler aggregator now if needed and will
* move specified VSI into it.
*/
static void ice_set_agg_vsi(struct ice_vsi *vsi)
{
struct device *dev = ice_pf_to_dev(vsi->back);
struct ice_agg_node *agg_node_iter = NULL;
u32 agg_id = ICE_INVALID_AGG_NODE_ID;
struct ice_agg_node *agg_node = NULL;
int node_offset, max_agg_nodes = 0;
struct ice_port_info *port_info;
struct ice_pf *pf = vsi->back;
u32 agg_node_id_start = 0;
int status;
/* create (as needed) scheduler aggregator node and move VSI into
* corresponding aggregator node
* - PF aggregator node to contains VSIs of type _PF and _CTRL
* - VF aggregator nodes will contain VF VSI
*/
port_info = pf->hw.port_info;
if (!port_info)
return;
switch (vsi->type) {
case ICE_VSI_CTRL:
case ICE_VSI_CHNL:
case ICE_VSI_LB:
case ICE_VSI_PF:
case ICE_VSI_SWITCHDEV_CTRL:
max_agg_nodes = ICE_MAX_PF_AGG_NODES;
agg_node_id_start = ICE_PF_AGG_NODE_ID_START;
agg_node_iter = &pf->pf_agg_node[0];
break;
case ICE_VSI_VF:
/* user can create 'n' VFs on a given PF, but since max children
* per aggregator node can be only 64. Following code handles
* aggregator(s) for VF VSIs, either selects a agg_node which
* was already created provided num_vsis < 64, otherwise
* select next available node, which will be created
*/
max_agg_nodes = ICE_MAX_VF_AGG_NODES;
agg_node_id_start = ICE_VF_AGG_NODE_ID_START;
agg_node_iter = &pf->vf_agg_node[0];
break;
default:
/* other VSI type, handle later if needed */
dev_dbg(dev, "unexpected VSI type %s\n",
ice_vsi_type_str(vsi->type));
return;
}
/* find the appropriate aggregator node */
for (node_offset = 0; node_offset < max_agg_nodes; node_offset++) {
/* see if we can find space in previously created
* node if num_vsis < 64, otherwise skip
*/
if (agg_node_iter->num_vsis &&
agg_node_iter->num_vsis == ICE_MAX_VSIS_IN_AGG_NODE) {
agg_node_iter++;
continue;
}
if (agg_node_iter->valid &&
agg_node_iter->agg_id != ICE_INVALID_AGG_NODE_ID) {
agg_id = agg_node_iter->agg_id;
agg_node = agg_node_iter;
break;
}
/* find unclaimed agg_id */
if (agg_node_iter->agg_id == ICE_INVALID_AGG_NODE_ID) {
agg_id = node_offset + agg_node_id_start;
agg_node = agg_node_iter;
break;
}
/* move to next agg_node */
agg_node_iter++;
}
if (!agg_node)
return;
/* if selected aggregator node was not created, create it */
if (!agg_node->valid) {
status = ice_cfg_agg(port_info, agg_id, ICE_AGG_TYPE_AGG,
(u8)vsi->tc_cfg.ena_tc);
if (status) {
dev_err(dev, "unable to create aggregator node with agg_id %u\n",
agg_id);
return;
}
/* aggregator node is created, store the neeeded info */
agg_node->valid = true;
agg_node->agg_id = agg_id;
}
/* move VSI to corresponding aggregator node */
status = ice_move_vsi_to_agg(port_info, agg_id, vsi->idx,
(u8)vsi->tc_cfg.ena_tc);
if (status) {
dev_err(dev, "unable to move VSI idx %u into aggregator %u node",
vsi->idx, agg_id);
return;
}
/* keep active children count for aggregator node */
agg_node->num_vsis++;
/* cache the 'agg_id' in VSI, so that after reset - VSI will be moved
* to aggregator node
*/
vsi->agg_node = agg_node;
dev_dbg(dev, "successfully moved VSI idx %u tc_bitmap 0x%x) into aggregator node %d which has num_vsis %u\n",
vsi->idx, vsi->tc_cfg.ena_tc, vsi->agg_node->agg_id,
vsi->agg_node->num_vsis);
}
/**
* ice_vsi_setup - Set up a VSI by a given type
* @pf: board private structure
* @pi: pointer to the port_info instance
* @vsi_type: VSI type
* @vf_id: defines VF ID to which this VSI connects. This field is meant to be
* used only for ICE_VSI_VF VSI type. For other VSI types, should
* fill-in ICE_INVAL_VFID as input.
* @ch: ptr to channel
*
* This allocates the sw VSI structure and its queue resources.
*
* Returns pointer to the successfully allocated and configured VSI sw struct on
* success, NULL on failure.
*/
struct ice_vsi *
ice_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi,
enum ice_vsi_type vsi_type, u16 vf_id, struct ice_channel *ch)
{
u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 };
struct device *dev = ice_pf_to_dev(pf);
struct ice_vsi *vsi;
int ret, i;
if (vsi_type == ICE_VSI_CHNL)
vsi = ice_vsi_alloc(pf, vsi_type, ch, ICE_INVAL_VFID);
else if (vsi_type == ICE_VSI_VF || vsi_type == ICE_VSI_CTRL)
vsi = ice_vsi_alloc(pf, vsi_type, NULL, vf_id);
else
vsi = ice_vsi_alloc(pf, vsi_type, NULL, ICE_INVAL_VFID);
if (!vsi) {
dev_err(dev, "could not allocate VSI\n");
return NULL;
}
vsi->port_info = pi;
vsi->vsw = pf->first_sw;
if (vsi->type == ICE_VSI_PF)
vsi->ethtype = ETH_P_PAUSE;
if (vsi->type == ICE_VSI_VF || vsi->type == ICE_VSI_CTRL)
vsi->vf_id = vf_id;
ice_alloc_fd_res(vsi);
if (vsi_type != ICE_VSI_CHNL) {
if (ice_vsi_get_qs(vsi)) {
dev_err(dev, "Failed to allocate queues. vsi->idx = %d\n",
vsi->idx);
goto unroll_vsi_alloc;
}
}
/* set RSS capabilities */
ice_vsi_set_rss_params(vsi);
/* set TC configuration */
ice_vsi_set_tc_cfg(vsi);
/* create the VSI */
ret = ice_vsi_init(vsi, true);
if (ret)
goto unroll_get_qs;
switch (vsi->type) {
case ICE_VSI_CTRL:
case ICE_VSI_SWITCHDEV_CTRL:
case ICE_VSI_PF:
ret = ice_vsi_alloc_q_vectors(vsi);
if (ret)
goto unroll_vsi_init;
ret = ice_vsi_setup_vector_base(vsi);
if (ret)
goto unroll_alloc_q_vector;
ret = ice_vsi_set_q_vectors_reg_idx(vsi);
if (ret)
goto unroll_vector_base;
ret = ice_vsi_alloc_rings(vsi);
if (ret)
goto unroll_vector_base;
/* Always add VLAN ID 0 switch rule by default. This is needed
* in order to allow all untagged and 0 tagged priority traffic
* if Rx VLAN pruning is enabled. Also there are cases where we
* don't get the call to add VLAN 0 via ice_vlan_rx_add_vid()
* so this handles those cases (i.e. adding the PF to a bridge
* without the 8021q module loaded).
*/
ret = ice_vsi_add_vlan(vsi, 0, ICE_FWD_TO_VSI);
if (ret)
goto unroll_clear_rings;
ice_vsi_map_rings_to_vectors(vsi);
/* ICE_VSI_CTRL does not need RSS so skip RSS processing */
if (vsi->type != ICE_VSI_CTRL)
/* Do not exit if configuring RSS had an issue, at
* least receive traffic on first queue. Hence no
* need to capture return value
*/
if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
ice_vsi_cfg_rss_lut_key(vsi);
ice_vsi_set_rss_flow_fld(vsi);
}
ice_init_arfs(vsi);
break;
case ICE_VSI_CHNL:
if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
ice_vsi_cfg_rss_lut_key(vsi);
ice_vsi_set_rss_flow_fld(vsi);
}
break;
case ICE_VSI_VF:
/* VF driver will take care of creating netdev for this type and
* map queues to vectors through Virtchnl, PF driver only
* creates a VSI and corresponding structures for bookkeeping
* purpose
*/
ret = ice_vsi_alloc_q_vectors(vsi);
if (ret)
goto unroll_vsi_init;
ret = ice_vsi_alloc_rings(vsi);
if (ret)
goto unroll_alloc_q_vector;
ret = ice_vsi_set_q_vectors_reg_idx(vsi);
if (ret)
goto unroll_vector_base;
/* Do not exit if configuring RSS had an issue, at least
* receive traffic on first queue. Hence no need to capture
* return value
*/
if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
ice_vsi_cfg_rss_lut_key(vsi);
ice_vsi_set_vf_rss_flow_fld(vsi);
}
break;
case ICE_VSI_LB:
ret = ice_vsi_alloc_rings(vsi);
if (ret)
goto unroll_vsi_init;
break;
default:
/* clean up the resources and exit */
goto unroll_vsi_init;
}
/* configure VSI nodes based on number of queues and TC's */
ice_for_each_traffic_class(i) {
if (!(vsi->tc_cfg.ena_tc & BIT(i)))
continue;
if (vsi->type == ICE_VSI_CHNL) {
if (!vsi->alloc_txq && vsi->num_txq)
max_txqs[i] = vsi->num_txq;
else
max_txqs[i] = pf->num_lan_tx;
} else {
max_txqs[i] = vsi->alloc_txq;
}
}
dev_dbg(dev, "vsi->tc_cfg.ena_tc = %d\n", vsi->tc_cfg.ena_tc);
ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc,
max_txqs);
if (ret) {
dev_err(dev, "VSI %d failed lan queue config, error %d\n",
vsi->vsi_num, ret);
goto unroll_clear_rings;
}
/* Add switch rule to drop all Tx Flow Control Frames, of look up
* type ETHERTYPE from VSIs, and restrict malicious VF from sending
* out PAUSE or PFC frames. If enabled, FW can still send FC frames.
* The rule is added once for PF VSI in order to create appropriate
* recipe, since VSI/VSI list is ignored with drop action...
* Also add rules to handle LLDP Tx packets. Tx LLDP packets need to
* be dropped so that VFs cannot send LLDP packets to reconfig DCB
* settings in the HW.
*/
if (!ice_is_safe_mode(pf))
if (vsi->type == ICE_VSI_PF) {
ice_fltr_add_eth(vsi, ETH_P_PAUSE, ICE_FLTR_TX,
ICE_DROP_PACKET);
ice_cfg_sw_lldp(vsi, true, true);
}
if (!vsi->agg_node)
ice_set_agg_vsi(vsi);
return vsi;
unroll_clear_rings:
ice_vsi_clear_rings(vsi);
unroll_vector_base:
/* reclaim SW interrupts back to the common pool */
ice_free_res(pf->irq_tracker, vsi->base_vector, vsi->idx);
pf->num_avail_sw_msix += vsi->num_q_vectors;
unroll_alloc_q_vector:
ice_vsi_free_q_vectors(vsi);
unroll_vsi_init:
ice_vsi_delete(vsi);
unroll_get_qs:
ice_vsi_put_qs(vsi);
unroll_vsi_alloc:
if (vsi_type == ICE_VSI_VF)
ice_enable_lag(pf->lag);
ice_vsi_clear(vsi);
return NULL;
}
/**
* ice_vsi_release_msix - Clear the queue to Interrupt mapping in HW
* @vsi: the VSI being cleaned up
*/
static void ice_vsi_release_msix(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
struct ice_hw *hw = &pf->hw;
u32 txq = 0;
u32 rxq = 0;
int i, q;
ice_for_each_q_vector(vsi, i) {
struct ice_q_vector *q_vector = vsi->q_vectors[i];
ice_write_intrl(q_vector, 0);
for (q = 0; q < q_vector->num_ring_tx; q++) {
ice_write_itr(&q_vector->tx, 0);
wr32(hw, QINT_TQCTL(vsi->txq_map[txq]), 0);
if (ice_is_xdp_ena_vsi(vsi)) {
u32 xdp_txq = txq + vsi->num_xdp_txq;
wr32(hw, QINT_TQCTL(vsi->txq_map[xdp_txq]), 0);
}
txq++;
}
for (q = 0; q < q_vector->num_ring_rx; q++) {
ice_write_itr(&q_vector->rx, 0);
wr32(hw, QINT_RQCTL(vsi->rxq_map[rxq]), 0);
rxq++;
}
}
ice_flush(hw);
}
/**
* ice_vsi_free_irq - Free the IRQ association with the OS
* @vsi: the VSI being configured
*/
void ice_vsi_free_irq(struct ice_vsi *vsi)
{
struct ice_pf *pf = vsi->back;
int base = vsi->base_vector;
int i;
if (!vsi->q_vectors || !vsi->irqs_ready)
return;
ice_vsi_release_msix(vsi);
if (vsi->type == ICE_VSI_VF)
return;
vsi->irqs_ready = false;
ice_for_each_q_vector(vsi, i) {
u16 vector = i + base;
int irq_num;
irq_num = pf->msix_entries[vector].vector;
/* free only the irqs that were actually requested */
if (!vsi->q_vectors[i] ||
!(vsi->q_vectors[i]->num_ring_tx ||
vsi->q_vectors[i]->num_ring_rx))
continue;
/* clear the affinity notifier in the IRQ descriptor */
irq_set_affinity_notifier(irq_num, NULL);
/* clear the affinity_mask in the IRQ descriptor */
irq_set_affinity_hint(irq_num, NULL);
synchronize_irq(irq_num);
devm_free_irq(ice_pf_to_dev(pf), irq_num, vsi->q_vectors[i]);
}
}
/**
* ice_vsi_free_tx_rings - Free Tx resources for VSI queues
* @vsi: the VSI having resources freed
*/
void ice_vsi_free_tx_rings(struct ice_vsi *vsi)
{
int i;
if (!vsi->tx_rings)
return;
ice_for_each_txq(vsi, i)
if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc)
ice_free_tx_ring(vsi->tx_rings[i]);
}
/**
* ice_vsi_free_rx_rings - Free Rx resources for VSI queues
* @vsi: the VSI having resources freed
*/
void ice_vsi_free_rx_rings(struct ice_vsi *vsi)
{
int i;
if (!vsi->rx_rings)
return;
ice_for_each_rxq(vsi, i)
if (vsi->rx_rings[i] && vsi->rx_rings[i]->desc)
ice_free_rx_ring(vsi->rx_rings[i]);
}
/**
* ice_vsi_close - Shut down a VSI
* @vsi: the VSI being shut down
*/
void ice_vsi_close(struct ice_vsi *vsi)
{
if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state))
ice_down(vsi);
ice_vsi_free_irq(vsi);
ice_vsi_free_tx_rings(vsi);
ice_vsi_free_rx_rings(vsi);
}
/**
* ice_ena_vsi - resume a VSI
* @vsi: the VSI being resume
* @locked: is the rtnl_lock already held
*/
int ice_ena_vsi(struct ice_vsi *vsi, bool locked)
{
int err = 0;
if (!test_bit(ICE_VSI_NEEDS_RESTART, vsi->state))
return 0;
clear_bit(ICE_VSI_NEEDS_RESTART, vsi->state);
if (vsi->netdev && vsi->type == ICE_VSI_PF) {
if (netif_running(vsi->netdev)) {
if (!locked)
rtnl_lock();
err = ice_open_internal(vsi->netdev);
if (!locked)
rtnl_unlock();
}
} else if (vsi->type == ICE_VSI_CTRL) {
err = ice_vsi_open_ctrl(vsi);
}
return err;
}
/**
* ice_dis_vsi - pause a VSI
* @vsi: the VSI being paused
* @locked: is the rtnl_lock already held
*/
void ice_dis_vsi(struct ice_vsi *vsi, bool locked)
{
if (test_bit(ICE_VSI_DOWN, vsi->state))
return;
set_bit(ICE_VSI_NEEDS_RESTART, vsi->state);
if (vsi->type == ICE_VSI_PF && vsi->netdev) {
if (netif_running(vsi->netdev)) {
if (!locked)
rtnl_lock();
ice_vsi_close(vsi);
if (!locked)
rtnl_unlock();
} else {
ice_vsi_close(vsi);
}
} else if (vsi->type == ICE_VSI_CTRL ||
vsi->type == ICE_VSI_SWITCHDEV_CTRL) {
ice_vsi_close(vsi);
}
}
/**
* ice_vsi_dis_irq - Mask off queue interrupt generation on the VSI
* @vsi: the VSI being un-configured
*/
void ice_vsi_dis_irq(struct ice_vsi *vsi)
{
int base = vsi->base_vector;
struct ice_pf *pf = vsi->back;
struct ice_hw *hw = &pf->hw;
u32 val;
int i;
/* disable interrupt causation from each queue */
if (vsi->tx_rings) {
ice_for_each_txq(vsi, i) {
if (vsi->tx_rings[i]) {
u16 reg;
reg = vsi->tx_rings[i]->reg_idx;
val = rd32(hw, QINT_TQCTL(reg));
val &= ~QINT_TQCTL_CAUSE_ENA_M;
wr32(hw, QINT_TQCTL(reg), val);
}
}
}
if (vsi->rx_rings) {
ice_for_each_rxq(vsi, i) {
if (vsi->rx_rings[i]) {
u16 reg;
reg = vsi->rx_rings[i]->reg_idx;
val = rd32(hw, QINT_RQCTL(reg));
val &= ~QINT_RQCTL_CAUSE_ENA_M;
wr32(hw, QINT_RQCTL(reg), val);
}
}
}
/* disable each interrupt */
ice_for_each_q_vector(vsi, i) {
if (!vsi->q_vectors[i])
continue;
wr32(hw, GLINT_DYN_CTL(vsi->q_vectors[i]->reg_idx), 0);
}
ice_flush(hw);
/* don't call synchronize_irq() for VF's from the host */
if (vsi->type == ICE_VSI_VF)
return;
ice_for_each_q_vector(vsi, i)
synchronize_irq(pf->msix_entries[i + base].vector);
}
/**
* ice_napi_del - Remove NAPI handler for the VSI
* @vsi: VSI for which NAPI handler is to be removed
*/
void ice_napi_del(struct ice_vsi *vsi)
{
int v_idx;
if (!vsi->netdev)
return;
ice_for_each_q_vector(vsi, v_idx)
netif_napi_del(&vsi->q_vectors[v_idx]->napi);
}
/**
* ice_vsi_release - Delete a VSI and free its resources
* @vsi: the VSI being removed
*
* Returns 0 on success or < 0 on error
*/
int ice_vsi_release(struct ice_vsi *vsi)
{
struct ice_pf *pf;
int err;
if (!vsi->back)
return -ENODEV;
pf = vsi->back;
/* do not unregister while driver is in the reset recovery pending
* state. Since reset/rebuild happens through PF service task workqueue,
* it's not a good idea to unregister netdev that is associated to the
* PF that is running the work queue items currently. This is done to
* avoid check_flush_dependency() warning on this wq
*/
if (vsi->netdev && !ice_is_reset_in_progress(pf->state) &&
(test_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state))) {
unregister_netdev(vsi->netdev);
clear_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state);
}
if (vsi->type == ICE_VSI_PF)
ice_devlink_destroy_pf_port(pf);
if (test_bit(ICE_FLAG_RSS_ENA, pf->flags))
ice_rss_clean(vsi);
/* Disable VSI and free resources */
if (vsi->type != ICE_VSI_LB)
ice_vsi_dis_irq(vsi);
ice_vsi_close(vsi);
/* SR-IOV determines needed MSIX resources all at once instead of per
* VSI since when VFs are spawned we know how many VFs there are and how
* many interrupts each VF needs. SR-IOV MSIX resources are also
* cleared in the same manner.
*/
if (vsi->type == ICE_VSI_CTRL && vsi->vf_id != ICE_INVAL_VFID) {
int i;
ice_for_each_vf(pf, i) {
struct ice_vf *vf = &pf->vf[i];
if (i != vsi->vf_id && vf->ctrl_vsi_idx != ICE_NO_VSI)
break;
}
if (i == pf->num_alloc_vfs) {
/* No other VFs left that have control VSI, reclaim SW
* interrupts back to the common pool
*/
ice_free_res(pf->irq_tracker, vsi->base_vector,
ICE_RES_VF_CTRL_VEC_ID);
pf->num_avail_sw_msix += vsi->num_q_vectors;
}
} else if (vsi->type != ICE_VSI_VF) {
/* reclaim SW interrupts back to the common pool */
ice_free_res(pf->irq_tracker, vsi->base_vector, vsi->idx);
pf->num_avail_sw_msix += vsi->num_q_vectors;
}
if (!ice_is_safe_mode(pf)) {
if (vsi->type == ICE_VSI_PF) {
ice_fltr_remove_eth(vsi, ETH_P_PAUSE, ICE_FLTR_TX,
ICE_DROP_PACKET);
ice_cfg_sw_lldp(vsi, true, false);
/* The Rx rule will only exist to remove if the LLDP FW
* engine is currently stopped
*/
if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags))
ice_cfg_sw_lldp(vsi, false, false);
}
}
ice_fltr_remove_all(vsi);
ice_rm_vsi_lan_cfg(vsi->port_info, vsi->idx);
err = ice_rm_vsi_rdma_cfg(vsi->port_info, vsi->idx);
if (err)
dev_err(ice_pf_to_dev(vsi->back), "Failed to remove RDMA scheduler config for VSI %u, err %d\n",
vsi->vsi_num, err);
ice_vsi_delete(vsi);
ice_vsi_free_q_vectors(vsi);
if (vsi->netdev) {
if (test_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state)) {
unregister_netdev(vsi->netdev);
clear_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state);
}
if (test_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state)) {
free_netdev(vsi->netdev);
vsi->netdev = NULL;
clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
}
}
if (vsi->type == ICE_VSI_VF &&
vsi->agg_node && vsi->agg_node->valid)
vsi->agg_node->num_vsis--;
ice_vsi_clear_rings(vsi);
ice_vsi_put_qs(vsi);
/* retain SW VSI data structure since it is needed to unregister and
* free VSI netdev when PF is not in reset recovery pending state,\
* for ex: during rmmod.
*/
if (!ice_is_reset_in_progress(pf->state))
ice_vsi_clear(vsi);
return 0;
}
/**
* ice_vsi_rebuild_get_coalesce - get coalesce from all q_vectors
* @vsi: VSI connected with q_vectors
* @coalesce: array of struct with stored coalesce
*
* Returns array size.
*/
static int
ice_vsi_rebuild_get_coalesce(struct ice_vsi *vsi,
struct ice_coalesce_stored *coalesce)
{
int i;
ice_for_each_q_vector(vsi, i) {
struct ice_q_vector *q_vector = vsi->q_vectors[i];
coalesce[i].itr_tx = q_vector->tx.itr_setting;
coalesce[i].itr_rx = q_vector->rx.itr_setting;
coalesce[i].intrl = q_vector->intrl;
if (i < vsi->num_txq)
coalesce[i].tx_valid = true;
if (i < vsi->num_rxq)
coalesce[i].rx_valid = true;
}
return vsi->num_q_vectors;
}
/**
* ice_vsi_rebuild_set_coalesce - set coalesce from earlier saved arrays
* @vsi: VSI connected with q_vectors
* @coalesce: pointer to array of struct with stored coalesce
* @size: size of coalesce array
*
* Before this function, ice_vsi_rebuild_get_coalesce should be called to save
* ITR params in arrays. If size is 0 or coalesce wasn't stored set coalesce
* to default value.
*/
static void
ice_vsi_rebuild_set_coalesce(struct ice_vsi *vsi,
struct ice_coalesce_stored *coalesce, int size)
{
struct ice_ring_container *rc;
int i;
if ((size && !coalesce) || !vsi)
return;
/* There are a couple of cases that have to be handled here:
* 1. The case where the number of queue vectors stays the same, but
* the number of Tx or Rx rings changes (the first for loop)
* 2. The case where the number of queue vectors increased (the
* second for loop)
*/
for (i = 0; i < size && i < vsi->num_q_vectors; i++) {
/* There are 2 cases to handle here and they are the same for
* both Tx and Rx:
* if the entry was valid previously (coalesce[i].[tr]x_valid
* and the loop variable is less than the number of rings
* allocated, then write the previous values
*
* if the entry was not valid previously, but the number of
* rings is less than are allocated (this means the number of
* rings increased from previously), then write out the
* values in the first element
*
* Also, always write the ITR, even if in ITR_IS_DYNAMIC
* as there is no harm because the dynamic algorithm
* will just overwrite.
*/
if (i < vsi->alloc_rxq && coalesce[i].rx_valid) {
rc = &vsi->q_vectors[i]->rx;
rc->itr_setting = coalesce[i].itr_rx;
ice_write_itr(rc, rc->itr_setting);
} else if (i < vsi->alloc_rxq) {
rc = &vsi->q_vectors[i]->rx;
rc->itr_setting = coalesce[0].itr_rx;
ice_write_itr(rc, rc->itr_setting);
}
if (i < vsi->alloc_txq && coalesce[i].tx_valid) {
rc = &vsi->q_vectors[i]->tx;
rc->itr_setting = coalesce[i].itr_tx;
ice_write_itr(rc, rc->itr_setting);
} else if (i < vsi->alloc_txq) {
rc = &vsi->q_vectors[i]->tx;
rc->itr_setting = coalesce[0].itr_tx;
ice_write_itr(rc, rc->itr_setting);
}
vsi->q_vectors[i]->intrl = coalesce[i].intrl;
ice_set_q_vector_intrl(vsi->q_vectors[i]);
}
/* the number of queue vectors increased so write whatever is in
* the first element
*/
for (; i < vsi->num_q_vectors; i++) {
/* transmit */
rc = &vsi->q_vectors[i]->tx;
rc->itr_setting = coalesce[0].itr_tx;
ice_write_itr(rc, rc->itr_setting);
/* receive */
rc = &vsi->q_vectors[i]->rx;
rc->itr_setting = coalesce[0].itr_rx;
ice_write_itr(rc, rc->itr_setting);
vsi->q_vectors[i]->intrl = coalesce[0].intrl;
ice_set_q_vector_intrl(vsi->q_vectors[i]);
}
}
/**
* ice_vsi_rebuild - Rebuild VSI after reset
* @vsi: VSI to be rebuild
* @init_vsi: is this an initialization or a reconfigure of the VSI
*
* Returns 0 on success and negative value on failure
*/
int ice_vsi_rebuild(struct ice_vsi *vsi, bool init_vsi)
{
u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 };
struct ice_coalesce_stored *coalesce;
int prev_num_q_vectors = 0;
struct ice_vf *vf = NULL;
enum ice_vsi_type vtype;
struct ice_pf *pf;
int ret, i;
if (!vsi)
return -EINVAL;
pf = vsi->back;
vtype = vsi->type;
if (vtype == ICE_VSI_VF)
vf = &pf->vf[vsi->vf_id];
coalesce = kcalloc(vsi->num_q_vectors,
sizeof(struct ice_coalesce_stored), GFP_KERNEL);
if (!coalesce)
return -ENOMEM;
prev_num_q_vectors = ice_vsi_rebuild_get_coalesce(vsi, coalesce);
ice_rm_vsi_lan_cfg(vsi->port_info, vsi->idx);
ret = ice_rm_vsi_rdma_cfg(vsi->port_info, vsi->idx);
if (ret)
dev_err(ice_pf_to_dev(vsi->back), "Failed to remove RDMA scheduler config for VSI %u, err %d\n",
vsi->vsi_num, ret);
ice_vsi_free_q_vectors(vsi);
/* SR-IOV determines needed MSIX resources all at once instead of per
* VSI since when VFs are spawned we know how many VFs there are and how
* many interrupts each VF needs. SR-IOV MSIX resources are also
* cleared in the same manner.
*/
if (vtype != ICE_VSI_VF) {
/* reclaim SW interrupts back to the common pool */
ice_free_res(pf->irq_tracker, vsi->base_vector, vsi->idx);
pf->num_avail_sw_msix += vsi->num_q_vectors;
vsi->base_vector = 0;
}
if (ice_is_xdp_ena_vsi(vsi))
/* return value check can be skipped here, it always returns
* 0 if reset is in progress
*/
ice_destroy_xdp_rings(vsi);
ice_vsi_put_qs(vsi);
ice_vsi_clear_rings(vsi);
ice_vsi_free_arrays(vsi);
if (vtype == ICE_VSI_VF)
ice_vsi_set_num_qs(vsi, vf->vf_id);
else
ice_vsi_set_num_qs(vsi, ICE_INVAL_VFID);
ret = ice_vsi_alloc_arrays(vsi);
if (ret < 0)
goto err_vsi;
ice_vsi_get_qs(vsi);
ice_alloc_fd_res(vsi);
ice_vsi_set_tc_cfg(vsi);
/* Initialize VSI struct elements and create VSI in FW */
ret = ice_vsi_init(vsi, init_vsi);
if (ret < 0)
goto err_vsi;
switch (vtype) {
case ICE_VSI_CTRL:
case ICE_VSI_SWITCHDEV_CTRL:
case ICE_VSI_PF:
ret = ice_vsi_alloc_q_vectors(vsi);
if (ret)
goto err_rings;
ret = ice_vsi_setup_vector_base(vsi);
if (ret)
goto err_vectors;
ret = ice_vsi_set_q_vectors_reg_idx(vsi);
if (ret)
goto err_vectors;
ret = ice_vsi_alloc_rings(vsi);
if (ret)
goto err_vectors;
ice_vsi_map_rings_to_vectors(vsi);
if (ice_is_xdp_ena_vsi(vsi)) {
ret = ice_vsi_determine_xdp_res(vsi);
if (ret)
goto err_vectors;
ret = ice_prepare_xdp_rings(vsi, vsi->xdp_prog);
if (ret)
goto err_vectors;
}
/* ICE_VSI_CTRL does not need RSS so skip RSS processing */
if (vtype != ICE_VSI_CTRL)
/* Do not exit if configuring RSS had an issue, at
* least receive traffic on first queue. Hence no
* need to capture return value
*/
if (test_bit(ICE_FLAG_RSS_ENA, pf->flags))
ice_vsi_cfg_rss_lut_key(vsi);
break;
case ICE_VSI_VF:
ret = ice_vsi_alloc_q_vectors(vsi);
if (ret)
goto err_rings;
ret = ice_vsi_set_q_vectors_reg_idx(vsi);
if (ret)
goto err_vectors;
ret = ice_vsi_alloc_rings(vsi);
if (ret)
goto err_vectors;
break;
case ICE_VSI_CHNL:
if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
ice_vsi_cfg_rss_lut_key(vsi);
ice_vsi_set_rss_flow_fld(vsi);
}
break;
default:
break;
}
/* configure VSI nodes based on number of queues and TC's */
for (i = 0; i < vsi->tc_cfg.numtc; i++) {
/* configure VSI nodes based on number of queues and TC's.
* ADQ creates VSIs for each TC/Channel but doesn't
* allocate queues instead it reconfigures the PF queues
* as per the TC command. So max_txqs should point to the
* PF Tx queues.
*/
if (vtype == ICE_VSI_CHNL)
max_txqs[i] = pf->num_lan_tx;
else
max_txqs[i] = vsi->alloc_txq;
if (ice_is_xdp_ena_vsi(vsi))
max_txqs[i] += vsi->num_xdp_txq;
}
if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))
/* If MQPRIO is set, means channel code path, hence for main
* VSI's, use TC as 1
*/
ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, 1, max_txqs);
else
ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx,
vsi->tc_cfg.ena_tc, max_txqs);
if (ret) {
dev_err(ice_pf_to_dev(pf), "VSI %d failed lan queue config, error %d\n",
vsi->vsi_num, ret);
if (init_vsi) {
ret = -EIO;
goto err_vectors;
} else {
return ice_schedule_reset(pf, ICE_RESET_PFR);
}
}
ice_vsi_rebuild_set_coalesce(vsi, coalesce, prev_num_q_vectors);
kfree(coalesce);
return 0;
err_vectors:
ice_vsi_free_q_vectors(vsi);
err_rings:
if (vsi->netdev) {
vsi->current_netdev_flags = 0;
unregister_netdev(vsi->netdev);
free_netdev(vsi->netdev);
vsi->netdev = NULL;
}
err_vsi:
ice_vsi_clear(vsi);
set_bit(ICE_RESET_FAILED, pf->state);
kfree(coalesce);
return ret;
}
/**
* ice_is_reset_in_progress - check for a reset in progress
* @state: PF state field
*/
bool ice_is_reset_in_progress(unsigned long *state)
{
return test_bit(ICE_RESET_OICR_RECV, state) ||
test_bit(ICE_PFR_REQ, state) ||
test_bit(ICE_CORER_REQ, state) ||
test_bit(ICE_GLOBR_REQ, state);
}
/**
* ice_wait_for_reset - Wait for driver to finish reset and rebuild
* @pf: pointer to the PF structure
* @timeout: length of time to wait, in jiffies
*
* Wait (sleep) for a short time until the driver finishes cleaning up from
* a device reset. The caller must be able to sleep. Use this to delay
* operations that could fail while the driver is cleaning up after a device
* reset.
*
* Returns 0 on success, -EBUSY if the reset is not finished within the
* timeout, and -ERESTARTSYS if the thread was interrupted.
*/
int ice_wait_for_reset(struct ice_pf *pf, unsigned long timeout)
{
long ret;
ret = wait_event_interruptible_timeout(pf->reset_wait_queue,
!ice_is_reset_in_progress(pf->state),
timeout);
if (ret < 0)
return ret;
else if (!ret)
return -EBUSY;
else
return 0;
}
/**
* ice_vsi_update_q_map - update our copy of the VSI info with new queue map
* @vsi: VSI being configured
* @ctx: the context buffer returned from AQ VSI update command
*/
static void ice_vsi_update_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctx)
{
vsi->info.mapping_flags = ctx->info.mapping_flags;
memcpy(&vsi->info.q_mapping, &ctx->info.q_mapping,
sizeof(vsi->info.q_mapping));
memcpy(&vsi->info.tc_mapping, ctx->info.tc_mapping,
sizeof(vsi->info.tc_mapping));
}
/**
* ice_vsi_cfg_netdev_tc - Setup the netdev TC configuration
* @vsi: the VSI being configured
* @ena_tc: TC map to be enabled
*/
void ice_vsi_cfg_netdev_tc(struct ice_vsi *vsi, u8 ena_tc)
{
struct net_device *netdev = vsi->netdev;
struct ice_pf *pf = vsi->back;
int numtc = vsi->tc_cfg.numtc;
struct ice_dcbx_cfg *dcbcfg;
u8 netdev_tc;
int i;
if (!netdev)
return;
/* CHNL VSI doesn't have it's own netdev, hence, no netdev_tc */
if (vsi->type == ICE_VSI_CHNL)
return;
if (!ena_tc) {
netdev_reset_tc(netdev);
return;
}
if (vsi->type == ICE_VSI_PF && ice_is_adq_active(pf))
numtc = vsi->all_numtc;
if (netdev_set_num_tc(netdev, numtc))
return;
dcbcfg = &pf->hw.port_info->qos_cfg.local_dcbx_cfg;
ice_for_each_traffic_class(i)
if (vsi->tc_cfg.ena_tc & BIT(i))
netdev_set_tc_queue(netdev,
vsi->tc_cfg.tc_info[i].netdev_tc,
vsi->tc_cfg.tc_info[i].qcount_tx,
vsi->tc_cfg.tc_info[i].qoffset);
/* setup TC queue map for CHNL TCs */
ice_for_each_chnl_tc(i) {
if (!(vsi->all_enatc & BIT(i)))
break;
if (!vsi->mqprio_qopt.qopt.count[i])
break;
netdev_set_tc_queue(netdev, i,
vsi->mqprio_qopt.qopt.count[i],
vsi->mqprio_qopt.qopt.offset[i]);
}
if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))
return;
for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
u8 ets_tc = dcbcfg->etscfg.prio_table[i];
/* Get the mapped netdev TC# for the UP */
netdev_tc = vsi->tc_cfg.tc_info[ets_tc].netdev_tc;
netdev_set_prio_tc_map(netdev, i, netdev_tc);
}
}
/**
* ice_vsi_setup_q_map_mqprio - Prepares mqprio based tc_config
* @vsi: the VSI being configured,
* @ctxt: VSI context structure
* @ena_tc: number of traffic classes to enable
*
* Prepares VSI tc_config to have queue configurations based on MQPRIO options.
*/
static void
ice_vsi_setup_q_map_mqprio(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt,
u8 ena_tc)
{
u16 pow, offset = 0, qcount_tx = 0, qcount_rx = 0, qmap;
u16 tc0_offset = vsi->mqprio_qopt.qopt.offset[0];
int tc0_qcount = vsi->mqprio_qopt.qopt.count[0];
u8 netdev_tc = 0;
int i;
vsi->tc_cfg.ena_tc = ena_tc ? ena_tc : 1;
pow = order_base_2(tc0_qcount);
qmap = ((tc0_offset << ICE_AQ_VSI_TC_Q_OFFSET_S) &
ICE_AQ_VSI_TC_Q_OFFSET_M) |
((pow << ICE_AQ_VSI_TC_Q_NUM_S) & ICE_AQ_VSI_TC_Q_NUM_M);
ice_for_each_traffic_class(i) {
if (!(vsi->tc_cfg.ena_tc & BIT(i))) {
/* TC is not enabled */
vsi->tc_cfg.tc_info[i].qoffset = 0;
vsi->tc_cfg.tc_info[i].qcount_rx = 1;
vsi->tc_cfg.tc_info[i].qcount_tx = 1;
vsi->tc_cfg.tc_info[i].netdev_tc = 0;
ctxt->info.tc_mapping[i] = 0;
continue;
}
offset = vsi->mqprio_qopt.qopt.offset[i];
qcount_rx = vsi->mqprio_qopt.qopt.count[i];
qcount_tx = vsi->mqprio_qopt.qopt.count[i];
vsi->tc_cfg.tc_info[i].qoffset = offset;
vsi->tc_cfg.tc_info[i].qcount_rx = qcount_rx;
vsi->tc_cfg.tc_info[i].qcount_tx = qcount_tx;
vsi->tc_cfg.tc_info[i].netdev_tc = netdev_tc++;
}
if (vsi->all_numtc && vsi->all_numtc != vsi->tc_cfg.numtc) {
ice_for_each_chnl_tc(i) {
if (!(vsi->all_enatc & BIT(i)))
continue;
offset = vsi->mqprio_qopt.qopt.offset[i];
qcount_rx = vsi->mqprio_qopt.qopt.count[i];
qcount_tx = vsi->mqprio_qopt.qopt.count[i];
}
}
/* Set actual Tx/Rx queue pairs */
vsi->num_txq = offset + qcount_tx;
vsi->num_rxq = offset + qcount_rx;
/* Setup queue TC[0].qmap for given VSI context */
ctxt->info.tc_mapping[0] = cpu_to_le16(qmap);
ctxt->info.q_mapping[0] = cpu_to_le16(vsi->rxq_map[0]);
ctxt->info.q_mapping[1] = cpu_to_le16(tc0_qcount);
/* Find queue count available for channel VSIs and starting offset
* for channel VSIs
*/
if (tc0_qcount && tc0_qcount < vsi->num_rxq) {
vsi->cnt_q_avail = vsi->num_rxq - tc0_qcount;
vsi->next_base_q = tc0_qcount;
}
dev_dbg(ice_pf_to_dev(vsi->back), "vsi->num_txq = %d\n", vsi->num_txq);
dev_dbg(ice_pf_to_dev(vsi->back), "vsi->num_rxq = %d\n", vsi->num_rxq);
dev_dbg(ice_pf_to_dev(vsi->back), "all_numtc %u, all_enatc: 0x%04x, tc_cfg.numtc %u\n",
vsi->all_numtc, vsi->all_enatc, vsi->tc_cfg.numtc);
}
/**
* ice_vsi_cfg_tc - Configure VSI Tx Sched for given TC map
* @vsi: VSI to be configured
* @ena_tc: TC bitmap
*
* VSI queues expected to be quiesced before calling this function
*/
int ice_vsi_cfg_tc(struct ice_vsi *vsi, u8 ena_tc)
{
u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 };
struct ice_pf *pf = vsi->back;
struct ice_vsi_ctx *ctx;
struct device *dev;
int i, ret = 0;
u8 num_tc = 0;
dev = ice_pf_to_dev(pf);
if (vsi->tc_cfg.ena_tc == ena_tc &&
vsi->mqprio_qopt.mode != TC_MQPRIO_MODE_CHANNEL)
return ret;
ice_for_each_traffic_class(i) {
/* build bitmap of enabled TCs */
if (ena_tc & BIT(i))
num_tc++;
/* populate max_txqs per TC */
max_txqs[i] = vsi->alloc_txq;
/* Update max_txqs if it is CHNL VSI, because alloc_t[r]xq are
* zero for CHNL VSI, hence use num_txq instead as max_txqs
*/
if (vsi->type == ICE_VSI_CHNL &&
test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))
max_txqs[i] = vsi->num_txq;
}
vsi->tc_cfg.ena_tc = ena_tc;
vsi->tc_cfg.numtc = num_tc;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
ctx->vf_num = 0;
ctx->info = vsi->info;
if (vsi->type == ICE_VSI_PF &&
test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))
ice_vsi_setup_q_map_mqprio(vsi, ctx, ena_tc);
else
ice_vsi_setup_q_map(vsi, ctx);
/* must to indicate which section of VSI context are being modified */
ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_RXQ_MAP_VALID);
ret = ice_update_vsi(&pf->hw, vsi->idx, ctx, NULL);
if (ret) {
dev_info(dev, "Failed VSI Update\n");
goto out;
}
if (vsi->type == ICE_VSI_PF &&
test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))
ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, 1, max_txqs);
else
ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx,
vsi->tc_cfg.ena_tc, max_txqs);
if (ret) {
dev_err(dev, "VSI %d failed TC config, error %d\n",
vsi->vsi_num, ret);
goto out;
}
ice_vsi_update_q_map(vsi, ctx);
vsi->info.valid_sections = 0;
ice_vsi_cfg_netdev_tc(vsi, ena_tc);
out:
kfree(ctx);
return ret;
}
/**
* ice_update_ring_stats - Update ring statistics
* @stats: stats to be updated
* @pkts: number of processed packets
* @bytes: number of processed bytes
*
* This function assumes that caller has acquired a u64_stats_sync lock.
*/
static void ice_update_ring_stats(struct ice_q_stats *stats, u64 pkts, u64 bytes)
{
stats->bytes += bytes;
stats->pkts += pkts;
}
/**
* ice_update_tx_ring_stats - Update Tx ring specific counters
* @tx_ring: ring to update
* @pkts: number of processed packets
* @bytes: number of processed bytes
*/
void ice_update_tx_ring_stats(struct ice_tx_ring *tx_ring, u64 pkts, u64 bytes)
{
u64_stats_update_begin(&tx_ring->syncp);
ice_update_ring_stats(&tx_ring->stats, pkts, bytes);
u64_stats_update_end(&tx_ring->syncp);
}
/**
* ice_update_rx_ring_stats - Update Rx ring specific counters
* @rx_ring: ring to update
* @pkts: number of processed packets
* @bytes: number of processed bytes
*/
void ice_update_rx_ring_stats(struct ice_rx_ring *rx_ring, u64 pkts, u64 bytes)
{
u64_stats_update_begin(&rx_ring->syncp);
ice_update_ring_stats(&rx_ring->stats, pkts, bytes);
u64_stats_update_end(&rx_ring->syncp);
}
/**
* ice_is_dflt_vsi_in_use - check if the default forwarding VSI is being used
* @sw: switch to check if its default forwarding VSI is free
*
* Return true if the default forwarding VSI is already being used, else returns
* false signalling that it's available to use.
*/
bool ice_is_dflt_vsi_in_use(struct ice_sw *sw)
{
return (sw->dflt_vsi && sw->dflt_vsi_ena);
}
/**
* ice_is_vsi_dflt_vsi - check if the VSI passed in is the default VSI
* @sw: switch for the default forwarding VSI to compare against
* @vsi: VSI to compare against default forwarding VSI
*
* If this VSI passed in is the default forwarding VSI then return true, else
* return false
*/
bool ice_is_vsi_dflt_vsi(struct ice_sw *sw, struct ice_vsi *vsi)
{
return (sw->dflt_vsi == vsi && sw->dflt_vsi_ena);
}
/**
* ice_set_dflt_vsi - set the default forwarding VSI
* @sw: switch used to assign the default forwarding VSI
* @vsi: VSI getting set as the default forwarding VSI on the switch
*
* If the VSI passed in is already the default VSI and it's enabled just return
* success.
*
* If there is already a default VSI on the switch and it's enabled then return
* -EEXIST since there can only be one default VSI per switch.
*
* Otherwise try to set the VSI passed in as the switch's default VSI and
* return the result.
*/
int ice_set_dflt_vsi(struct ice_sw *sw, struct ice_vsi *vsi)
{
struct device *dev;
int status;
if (!sw || !vsi)
return -EINVAL;
dev = ice_pf_to_dev(vsi->back);
/* the VSI passed in is already the default VSI */
if (ice_is_vsi_dflt_vsi(sw, vsi)) {
dev_dbg(dev, "VSI %d passed in is already the default forwarding VSI, nothing to do\n",
vsi->vsi_num);
return 0;
}
/* another VSI is already the default VSI for this switch */
if (ice_is_dflt_vsi_in_use(sw)) {
dev_err(dev, "Default forwarding VSI %d already in use, disable it and try again\n",
sw->dflt_vsi->vsi_num);
return -EEXIST;
}
status = ice_cfg_dflt_vsi(&vsi->back->hw, vsi->idx, true, ICE_FLTR_RX);
if (status) {
dev_err(dev, "Failed to set VSI %d as the default forwarding VSI, error %d\n",
vsi->vsi_num, status);
return status;
}
sw->dflt_vsi = vsi;
sw->dflt_vsi_ena = true;
return 0;
}
/**
* ice_clear_dflt_vsi - clear the default forwarding VSI
* @sw: switch used to clear the default VSI
*
* If the switch has no default VSI or it's not enabled then return error.
*
* Otherwise try to clear the default VSI and return the result.
*/
int ice_clear_dflt_vsi(struct ice_sw *sw)
{
struct ice_vsi *dflt_vsi;
struct device *dev;
int status;
if (!sw)
return -EINVAL;
dev = ice_pf_to_dev(sw->pf);
dflt_vsi = sw->dflt_vsi;
/* there is no default VSI configured */
if (!ice_is_dflt_vsi_in_use(sw))
return -ENODEV;
status = ice_cfg_dflt_vsi(&dflt_vsi->back->hw, dflt_vsi->idx, false,
ICE_FLTR_RX);
if (status) {
dev_err(dev, "Failed to clear the default forwarding VSI %d, error %d\n",
dflt_vsi->vsi_num, status);
return -EIO;
}
sw->dflt_vsi = NULL;
sw->dflt_vsi_ena = false;
return 0;
}
/**
* ice_get_link_speed_mbps - get link speed in Mbps
* @vsi: the VSI whose link speed is being queried
*
* Return current VSI link speed and 0 if the speed is unknown.
*/
int ice_get_link_speed_mbps(struct ice_vsi *vsi)
{
switch (vsi->port_info->phy.link_info.link_speed) {
case ICE_AQ_LINK_SPEED_100GB:
return SPEED_100000;
case ICE_AQ_LINK_SPEED_50GB:
return SPEED_50000;
case ICE_AQ_LINK_SPEED_40GB:
return SPEED_40000;
case ICE_AQ_LINK_SPEED_25GB:
return SPEED_25000;
case ICE_AQ_LINK_SPEED_20GB:
return SPEED_20000;
case ICE_AQ_LINK_SPEED_10GB:
return SPEED_10000;
case ICE_AQ_LINK_SPEED_5GB:
return SPEED_5000;
case ICE_AQ_LINK_SPEED_2500MB:
return SPEED_2500;
case ICE_AQ_LINK_SPEED_1000MB:
return SPEED_1000;
case ICE_AQ_LINK_SPEED_100MB:
return SPEED_100;
case ICE_AQ_LINK_SPEED_10MB:
return SPEED_10;
case ICE_AQ_LINK_SPEED_UNKNOWN:
default:
return 0;
}
}
/**
* ice_get_link_speed_kbps - get link speed in Kbps
* @vsi: the VSI whose link speed is being queried
*
* Return current VSI link speed and 0 if the speed is unknown.
*/
int ice_get_link_speed_kbps(struct ice_vsi *vsi)
{
int speed_mbps;
speed_mbps = ice_get_link_speed_mbps(vsi);
return speed_mbps * 1000;
}
/**
* ice_set_min_bw_limit - setup minimum BW limit for Tx based on min_tx_rate
* @vsi: VSI to be configured
* @min_tx_rate: min Tx rate in Kbps to be configured as BW limit
*
* If the min_tx_rate is specified as 0 that means to clear the minimum BW limit
* profile, otherwise a non-zero value will force a minimum BW limit for the VSI
* on TC 0.
*/
int ice_set_min_bw_limit(struct ice_vsi *vsi, u64 min_tx_rate)
{
struct ice_pf *pf = vsi->back;
struct device *dev;
int status;
int speed;
dev = ice_pf_to_dev(pf);
if (!vsi->port_info) {
dev_dbg(dev, "VSI %d, type %u specified doesn't have valid port_info\n",
vsi->idx, vsi->type);
return -EINVAL;
}
speed = ice_get_link_speed_kbps(vsi);
if (min_tx_rate > (u64)speed) {
dev_err(dev, "invalid min Tx rate %llu Kbps specified for %s %d is greater than current link speed %u Kbps\n",
min_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx,
speed);
return -EINVAL;
}
/* Configure min BW for VSI limit */
if (min_tx_rate) {
status = ice_cfg_vsi_bw_lmt_per_tc(vsi->port_info, vsi->idx, 0,
ICE_MIN_BW, min_tx_rate);
if (status) {
dev_err(dev, "failed to set min Tx rate(%llu Kbps) for %s %d\n",
min_tx_rate, ice_vsi_type_str(vsi->type),
vsi->idx);
return status;
}
dev_dbg(dev, "set min Tx rate(%llu Kbps) for %s\n",
min_tx_rate, ice_vsi_type_str(vsi->type));
} else {
status = ice_cfg_vsi_bw_dflt_lmt_per_tc(vsi->port_info,
vsi->idx, 0,
ICE_MIN_BW);
if (status) {
dev_err(dev, "failed to clear min Tx rate configuration for %s %d\n",
ice_vsi_type_str(vsi->type), vsi->idx);
return status;
}
dev_dbg(dev, "cleared min Tx rate configuration for %s %d\n",
ice_vsi_type_str(vsi->type), vsi->idx);
}
return 0;
}
/**
* ice_set_max_bw_limit - setup maximum BW limit for Tx based on max_tx_rate
* @vsi: VSI to be configured
* @max_tx_rate: max Tx rate in Kbps to be configured as BW limit
*
* If the max_tx_rate is specified as 0 that means to clear the maximum BW limit
* profile, otherwise a non-zero value will force a maximum BW limit for the VSI
* on TC 0.
*/
int ice_set_max_bw_limit(struct ice_vsi *vsi, u64 max_tx_rate)
{
struct ice_pf *pf = vsi->back;
struct device *dev;
int status;
int speed;
dev = ice_pf_to_dev(pf);
if (!vsi->port_info) {
dev_dbg(dev, "VSI %d, type %u specified doesn't have valid port_info\n",
vsi->idx, vsi->type);
return -EINVAL;
}
speed = ice_get_link_speed_kbps(vsi);
if (max_tx_rate > (u64)speed) {
dev_err(dev, "invalid max Tx rate %llu Kbps specified for %s %d is greater than current link speed %u Kbps\n",
max_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx,
speed);
return -EINVAL;
}
/* Configure max BW for VSI limit */
if (max_tx_rate) {
status = ice_cfg_vsi_bw_lmt_per_tc(vsi->port_info, vsi->idx, 0,
ICE_MAX_BW, max_tx_rate);
if (status) {
dev_err(dev, "failed setting max Tx rate(%llu Kbps) for %s %d\n",
max_tx_rate, ice_vsi_type_str(vsi->type),
vsi->idx);
return status;
}
dev_dbg(dev, "set max Tx rate(%llu Kbps) for %s %d\n",
max_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx);
} else {
status = ice_cfg_vsi_bw_dflt_lmt_per_tc(vsi->port_info,
vsi->idx, 0,
ICE_MAX_BW);
if (status) {
dev_err(dev, "failed clearing max Tx rate configuration for %s %d\n",
ice_vsi_type_str(vsi->type), vsi->idx);
return status;
}
dev_dbg(dev, "cleared max Tx rate configuration for %s %d\n",
ice_vsi_type_str(vsi->type), vsi->idx);
}
return 0;
}
/**
* ice_set_link - turn on/off physical link
* @vsi: VSI to modify physical link on
* @ena: turn on/off physical link
*/
int ice_set_link(struct ice_vsi *vsi, bool ena)
{
struct device *dev = ice_pf_to_dev(vsi->back);
struct ice_port_info *pi = vsi->port_info;
struct ice_hw *hw = pi->hw;
int status;
if (vsi->type != ICE_VSI_PF)
return -EINVAL;
status = ice_aq_set_link_restart_an(pi, ena, NULL);
/* if link is owned by manageability, FW will return ICE_AQ_RC_EMODE.
* this is not a fatal error, so print a warning message and return
* a success code. Return an error if FW returns an error code other
* than ICE_AQ_RC_EMODE
*/
if (status == -EIO) {
if (hw->adminq.sq_last_status == ICE_AQ_RC_EMODE)
dev_warn(dev, "can't set link to %s, err %d aq_err %s. not fatal, continuing\n",
(ena ? "ON" : "OFF"), status,
ice_aq_str(hw->adminq.sq_last_status));
} else if (status) {
dev_err(dev, "can't set link to %s, err %d aq_err %s\n",
(ena ? "ON" : "OFF"), status,
ice_aq_str(hw->adminq.sq_last_status));
return status;
}
return 0;
}
/**
* ice_is_feature_supported
* @pf: pointer to the struct ice_pf instance
* @f: feature enum to be checked
*
* returns true if feature is supported, false otherwise
*/
bool ice_is_feature_supported(struct ice_pf *pf, enum ice_feature f)
{
if (f < 0 || f >= ICE_F_MAX)
return false;
return test_bit(f, pf->features);
}
/**
* ice_set_feature_support
* @pf: pointer to the struct ice_pf instance
* @f: feature enum to set
*/
static void ice_set_feature_support(struct ice_pf *pf, enum ice_feature f)
{
if (f < 0 || f >= ICE_F_MAX)
return;
set_bit(f, pf->features);
}
/**
* ice_clear_feature_support
* @pf: pointer to the struct ice_pf instance
* @f: feature enum to clear
*/
void ice_clear_feature_support(struct ice_pf *pf, enum ice_feature f)
{
if (f < 0 || f >= ICE_F_MAX)
return;
clear_bit(f, pf->features);
}
/**
* ice_init_feature_support
* @pf: pointer to the struct ice_pf instance
*
* called during init to setup supported feature
*/
void ice_init_feature_support(struct ice_pf *pf)
{
switch (pf->hw.device_id) {
case ICE_DEV_ID_E810C_BACKPLANE:
case ICE_DEV_ID_E810C_QSFP:
case ICE_DEV_ID_E810C_SFP:
ice_set_feature_support(pf, ICE_F_DSCP);
if (ice_is_e810t(&pf->hw))
ice_set_feature_support(pf, ICE_F_SMA_CTRL);
break;
default:
break;
}
}
/**
* ice_vsi_update_security - update security block in VSI
* @vsi: pointer to VSI structure
* @fill: function pointer to fill ctx
*/
int
ice_vsi_update_security(struct ice_vsi *vsi, void (*fill)(struct ice_vsi_ctx *))
{
struct ice_vsi_ctx ctx = { 0 };
ctx.info = vsi->info;
ctx.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
fill(&ctx);
if (ice_update_vsi(&vsi->back->hw, vsi->idx, &ctx, NULL))
return -ENODEV;
vsi->info = ctx.info;
return 0;
}
/**
* ice_vsi_ctx_set_antispoof - set antispoof function in VSI ctx
* @ctx: pointer to VSI ctx structure
*/
void ice_vsi_ctx_set_antispoof(struct ice_vsi_ctx *ctx)
{
ctx->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF |
(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);
}
/**
* ice_vsi_ctx_clear_antispoof - clear antispoof function in VSI ctx
* @ctx: pointer to VSI ctx structure
*/
void ice_vsi_ctx_clear_antispoof(struct ice_vsi_ctx *ctx)
{
ctx->info.sec_flags &= ~ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF &
~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);
}
/**
* ice_vsi_ctx_set_allow_override - allow destination override on VSI
* @ctx: pointer to VSI ctx structure
*/
void ice_vsi_ctx_set_allow_override(struct ice_vsi_ctx *ctx)
{
ctx->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD;
}
/**
* ice_vsi_ctx_clear_allow_override - turn off destination override on VSI
* @ctx: pointer to VSI ctx structure
*/
void ice_vsi_ctx_clear_allow_override(struct ice_vsi_ctx *ctx)
{
ctx->info.sec_flags &= ~ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD;
}
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