Quelle  qed_dev.c   Sprache: C

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
/* QLogic qed NIC Driver
 * Copyright (c) 2015-2017  QLogic Corporation
 * Copyright (c) 2019-2020 Marvell International Ltd.
 */

#include <linux/types.h>
#include <asm/byteorder.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/mutex.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/vmalloc.h>
#include <linux/etherdevice.h>
#include <linux/qed/qed_chain.h>
#include <linux/qed/qed_if.h>
#include "qed.h"
#include "qed_cxt.h"
#include "qed_dcbx.h"
#include "qed_dev_api.h"
#include "qed_fcoe.h"
#include "qed_hsi.h"
#include "qed_iro_hsi.h"
#include "qed_hw.h"
#include "qed_init_ops.h"
#include "qed_int.h"
#include "qed_iscsi.h"
#include "qed_ll2.h"
#include "qed_mcp.h"
#include "qed_ooo.h"
#include "qed_reg_addr.h"
#include "qed_sp.h"
#include "qed_sriov.h"
#include "qed_vf.h"
#include "qed_rdma.h"
#include "qed_nvmetcp.h"

static DEFINE_SPINLOCK(qm_lock);

/******************** Doorbell Recovery *******************/
/* The doorbell recovery mechanism consists of a list of entries which represent
 * doorbelling entities (l2 queues, roce sq/rq/cqs, the slowpath spq, etc). Each
 * entity needs to register with the mechanism and provide the parameters
 * describing it's doorbell, including a location where last used doorbell data
 * can be found. The doorbell execute function will traverse the list and
 * doorbell all of the registered entries.
 */
struct qed_db_recovery_entry {
 struct list_head list_entry;
 void __iomem *db_addr;
 void *db_data;
 enum qed_db_rec_width db_width;
 enum qed_db_rec_space db_space;
 u8 hwfn_idx;
};

/* Display a single doorbell recovery entry */
static void qed_db_recovery_dp_entry(struct qed_hwfn *p_hwfn,
         struct qed_db_recovery_entry *db_entry,
         char *action)
{
 DP_VERBOSE(p_hwfn,
     QED_MSG_SPQ,
     "(%s: db_entry %p, addr %p, data %p, width %s, %s space, hwfn %d)\n",
     action,
     db_entry,
     db_entry->db_addr,
     db_entry->db_data,
     db_entry->db_width == DB_REC_WIDTH_32B ? "32b" : "64b",
     db_entry->db_space == DB_REC_USER ? "user" : "kernel",
     db_entry->hwfn_idx);
}

/* Doorbell address sanity (address within doorbell bar range) */
static bool qed_db_rec_sanity(struct qed_dev *cdev,
         void __iomem *db_addr,
         enum qed_db_rec_width db_width,
         void *db_data)
{
 u32 width = (db_width == DB_REC_WIDTH_32B) ? 32 : 64;

 /* Make sure doorbell address is within the doorbell bar */
 if (db_addr < cdev->doorbells ||
     (u8 __iomem *)db_addr + width >
     (u8 __iomem *)cdev->doorbells + cdev->db_size) {
  WARN(true,
       "Illegal doorbell address: %p. Legal range for doorbell addresses is [%p..%p]\n",
       db_addr,
       cdev->doorbells,
       (u8 __iomem *)cdev->doorbells + cdev->db_size);
  return false;
 }

 /* ake sure doorbell data pointer is not null */
 if (!db_data) {
  WARN(true, "Illegal doorbell data pointer: %p", db_data);
  return false;
 }

 return true;
}

/* Find hwfn according to the doorbell address */
static struct qed_hwfn *qed_db_rec_find_hwfn(struct qed_dev *cdev,
          void __iomem *db_addr)
{
 struct qed_hwfn *p_hwfn;

 /* In CMT doorbell bar is split down the middle between engine 0 and enigne 1 */
 if (cdev->num_hwfns > 1)
  p_hwfn = db_addr < cdev->hwfns[1].doorbells ?
      &cdev->hwfns[0] : &cdev->hwfns[1];
 else
  p_hwfn = QED_LEADING_HWFN(cdev);

 return p_hwfn;
}

/* Add a new entry to the doorbell recovery mechanism */
int qed_db_recovery_add(struct qed_dev *cdev,
   void __iomem *db_addr,
   void *db_data,
   enum qed_db_rec_width db_width,
   enum qed_db_rec_space db_space)
{
 struct qed_db_recovery_entry *db_entry;
 struct qed_hwfn *p_hwfn;

 /* Shortcircuit VFs, for now */
 if (IS_VF(cdev)) {
  DP_VERBOSE(cdev,
      QED_MSG_IOV, "db recovery - skipping VF doorbell\n");
  return 0;
 }

 /* Sanitize doorbell address */
 if (!qed_db_rec_sanity(cdev, db_addr, db_width, db_data))
  return -EINVAL;

 /* Obtain hwfn from doorbell address */
 p_hwfn = qed_db_rec_find_hwfn(cdev, db_addr);

 /* Create entry */
 db_entry = kzalloc(sizeof(*db_entry), GFP_KERNEL);
 if (!db_entry) {
  DP_NOTICE(cdev, "Failed to allocate a db recovery entry\n");
  return -ENOMEM;
 }

 /* Populate entry */
 db_entry->db_addr = db_addr;
 db_entry->db_data = db_data;
 db_entry->db_width = db_width;
 db_entry->db_space = db_space;
 db_entry->hwfn_idx = p_hwfn->my_id;

 /* Display */
 qed_db_recovery_dp_entry(p_hwfn, db_entry, "Adding");

 /* Protect the list */
 spin_lock_bh(&p_hwfn->db_recovery_info.lock);
 list_add_tail(&db_entry->list_entry, &p_hwfn->db_recovery_info.list);
 spin_unlock_bh(&p_hwfn->db_recovery_info.lock);

 return 0;
}

/* Remove an entry from the doorbell recovery mechanism */
int qed_db_recovery_del(struct qed_dev *cdev,
   void __iomem *db_addr, void *db_data)
{
 struct qed_db_recovery_entry *db_entry = NULL;
 struct qed_hwfn *p_hwfn;
 int rc = -EINVAL;

 /* Shortcircuit VFs, for now */
 if (IS_VF(cdev)) {
  DP_VERBOSE(cdev,
      QED_MSG_IOV, "db recovery - skipping VF doorbell\n");
  return 0;
 }

 /* Obtain hwfn from doorbell address */
 p_hwfn = qed_db_rec_find_hwfn(cdev, db_addr);

 /* Protect the list */
 spin_lock_bh(&p_hwfn->db_recovery_info.lock);
 list_for_each_entry(db_entry,
       &p_hwfn->db_recovery_info.list, list_entry) {
  /* search according to db_data addr since db_addr is not unique (roce) */
  if (db_entry->db_data == db_data) {
   qed_db_recovery_dp_entry(p_hwfn, db_entry, "Deleting");
   list_del(&db_entry->list_entry);
   rc = 0;
   break;
  }
 }

 spin_unlock_bh(&p_hwfn->db_recovery_info.lock);

 if (rc == -EINVAL)

  DP_NOTICE(p_hwfn,
     "Failed to find element in list. Key (db_data addr) was %p. db_addr was %p\n",
     db_data, db_addr);
 else
  kfree(db_entry);

 return rc;
}

/* Initialize the doorbell recovery mechanism */
static int qed_db_recovery_setup(struct qed_hwfn *p_hwfn)
{
 DP_VERBOSE(p_hwfn, QED_MSG_SPQ, "Setting up db recovery\n");

 /* Make sure db_size was set in cdev */
 if (!p_hwfn->cdev->db_size) {
  DP_ERR(p_hwfn->cdev, "db_size not set\n");
  return -EINVAL;
 }

 INIT_LIST_HEAD(&p_hwfn->db_recovery_info.list);
 spin_lock_init(&p_hwfn->db_recovery_info.lock);
 p_hwfn->db_recovery_info.db_recovery_counter = 0;

 return 0;
}

/* Destroy the doorbell recovery mechanism */
static void qed_db_recovery_teardown(struct qed_hwfn *p_hwfn)
{
 struct qed_db_recovery_entry *db_entry = NULL;

 DP_VERBOSE(p_hwfn, QED_MSG_SPQ, "Tearing down db recovery\n");
 if (!list_empty(&p_hwfn->db_recovery_info.list)) {
  DP_VERBOSE(p_hwfn,
      QED_MSG_SPQ,
      "Doorbell Recovery teardown found the doorbell recovery list was not empty (Expected in disorderly driver unload (e.g. recovery) otherwise this probably means some flow forgot to db_recovery_del). Prepare to purge doorbell recovery list...\n");
  while (!list_empty(&p_hwfn->db_recovery_info.list)) {
   db_entry =
       list_first_entry(&p_hwfn->db_recovery_info.list,
          struct qed_db_recovery_entry,
          list_entry);
   qed_db_recovery_dp_entry(p_hwfn, db_entry, "Purging");
   list_del(&db_entry->list_entry);
   kfree(db_entry);
  }
 }
 p_hwfn->db_recovery_info.db_recovery_counter = 0;
}

/* Ring the doorbell of a single doorbell recovery entry */
static void qed_db_recovery_ring(struct qed_hwfn *p_hwfn,
     struct qed_db_recovery_entry *db_entry)
{
 /* Print according to width */
 if (db_entry->db_width == DB_REC_WIDTH_32B) {
  DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
      "ringing doorbell address %p data %x\n",
      db_entry->db_addr,
      *(u32 *)db_entry->db_data);
 } else {
  DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
      "ringing doorbell address %p data %llx\n",
      db_entry->db_addr,
      *(u64 *)(db_entry->db_data));
 }

 /* Sanity */
 if (!qed_db_rec_sanity(p_hwfn->cdev, db_entry->db_addr,
          db_entry->db_width, db_entry->db_data))
  return;

 /* Flush the write combined buffer. Since there are multiple doorbelling
 * entities using the same address, if we don't flush, a transaction
 * could be lost.
 */
 wmb();

 /* Ring the doorbell */
 if (db_entry->db_width == DB_REC_WIDTH_32B)
  DIRECT_REG_WR(db_entry->db_addr,
         *(u32 *)(db_entry->db_data));
 else
  DIRECT_REG_WR64(db_entry->db_addr,
    *(u64 *)(db_entry->db_data));

 /* Flush the write combined buffer. Next doorbell may come from a
 * different entity to the same address...
 */
 wmb();
}

/* Traverse the doorbell recovery entry list and ring all the doorbells */
void qed_db_recovery_execute(struct qed_hwfn *p_hwfn)
{
 struct qed_db_recovery_entry *db_entry = NULL;

 DP_NOTICE(p_hwfn, "Executing doorbell recovery. Counter was %d\n",
    p_hwfn->db_recovery_info.db_recovery_counter);

 /* Track amount of times recovery was executed */
 p_hwfn->db_recovery_info.db_recovery_counter++;

 /* Protect the list */
 spin_lock_bh(&p_hwfn->db_recovery_info.lock);
 list_for_each_entry(db_entry,
       &p_hwfn->db_recovery_info.list, list_entry)
  qed_db_recovery_ring(p_hwfn, db_entry);
 spin_unlock_bh(&p_hwfn->db_recovery_info.lock);
}

/******************** Doorbell Recovery end ****************/

/********************************** NIG LLH ***********************************/

enum qed_llh_filter_type {
 QED_LLH_FILTER_TYPE_MAC,
 QED_LLH_FILTER_TYPE_PROTOCOL,
};

struct qed_llh_mac_filter {
 u8 addr[ETH_ALEN];
};

struct qed_llh_protocol_filter {
 enum qed_llh_prot_filter_type_t type;
 u16 source_port_or_eth_type;
 u16 dest_port;
};

union qed_llh_filter {
 struct qed_llh_mac_filter mac;
 struct qed_llh_protocol_filter protocol;
};

struct qed_llh_filter_info {
 bool b_enabled;
 u32 ref_cnt;
 enum qed_llh_filter_type type;
 union qed_llh_filter filter;
};

struct qed_llh_info {
 /* Number of LLH filters banks */
 u8 num_ppfid;

#define MAX_NUM_PPFID   8
 u8 ppfid_array[MAX_NUM_PPFID];

 /* Array of filters arrays:
 * "num_ppfid" elements of filters banks, where each is an array of
 * "NIG_REG_LLH_FUNC_FILTER_EN_SIZE" filters.
 */
 struct qed_llh_filter_info **pp_filters;
};

static void qed_llh_free(struct qed_dev *cdev)
{
 struct qed_llh_info *p_llh_info = cdev->p_llh_info;
 u32 i;

 if (p_llh_info) {
  if (p_llh_info->pp_filters)
   for (i = 0; i < p_llh_info->num_ppfid; i++)
    kfree(p_llh_info->pp_filters[i]);

  kfree(p_llh_info->pp_filters);
 }

 kfree(p_llh_info);
 cdev->p_llh_info = NULL;
}

static int qed_llh_alloc(struct qed_dev *cdev)
{
 struct qed_llh_info *p_llh_info;
 u32 size, i;

 p_llh_info = kzalloc(sizeof(*p_llh_info), GFP_KERNEL);
 if (!p_llh_info)
  return -ENOMEM;
 cdev->p_llh_info = p_llh_info;

 for (i = 0; i < MAX_NUM_PPFID; i++) {
  if (!(cdev->ppfid_bitmap & (0x1 << i)))
   continue;

  p_llh_info->ppfid_array[p_llh_info->num_ppfid] = i;
  DP_VERBOSE(cdev, QED_MSG_SP, "ppfid_array[%d] = %u\n",
      p_llh_info->num_ppfid, i);
  p_llh_info->num_ppfid++;
 }

 size = p_llh_info->num_ppfid * sizeof(*p_llh_info->pp_filters);
 p_llh_info->pp_filters = kzalloc(size, GFP_KERNEL);
 if (!p_llh_info->pp_filters)
  return -ENOMEM;

 size = NIG_REG_LLH_FUNC_FILTER_EN_SIZE *
     sizeof(**p_llh_info->pp_filters);
 for (i = 0; i < p_llh_info->num_ppfid; i++) {
  p_llh_info->pp_filters[i] = kzalloc(size, GFP_KERNEL);
  if (!p_llh_info->pp_filters[i])
   return -ENOMEM;
 }

 return 0;
}

static int qed_llh_shadow_sanity(struct qed_dev *cdev,
     u8 ppfid, u8 filter_idx, const char *action)
{
 struct qed_llh_info *p_llh_info = cdev->p_llh_info;

 if (ppfid >= p_llh_info->num_ppfid) {
  DP_NOTICE(cdev,
     "LLH shadow [%s]: using ppfid %d while only %d ppfids are available\n",
     action, ppfid, p_llh_info->num_ppfid);
  return -EINVAL;
 }

 if (filter_idx >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE) {
  DP_NOTICE(cdev,
     "LLH shadow [%s]: using filter_idx %d while only %d filters are available\n",
     action, filter_idx, NIG_REG_LLH_FUNC_FILTER_EN_SIZE);
  return -EINVAL;
 }

 return 0;
}

#define QED_LLH_INVALID_FILTER_IDX      0xff

static int
qed_llh_shadow_search_filter(struct qed_dev *cdev,
        u8 ppfid,
        union qed_llh_filter *p_filter, u8 *p_filter_idx)
{
 struct qed_llh_info *p_llh_info = cdev->p_llh_info;
 struct qed_llh_filter_info *p_filters;
 int rc;
 u8 i;

 rc = qed_llh_shadow_sanity(cdev, ppfid, 0, "search");
 if (rc)
  return rc;

 *p_filter_idx = QED_LLH_INVALID_FILTER_IDX;

 p_filters = p_llh_info->pp_filters[ppfid];
 for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
  if (!memcmp(p_filter, &p_filters[i].filter,
       sizeof(*p_filter))) {
   *p_filter_idx = i;
   break;
  }
 }

 return 0;
}

static int
qed_llh_shadow_get_free_idx(struct qed_dev *cdev, u8 ppfid, u8 *p_filter_idx)
{
 struct qed_llh_info *p_llh_info = cdev->p_llh_info;
 struct qed_llh_filter_info *p_filters;
 int rc;
 u8 i;

 rc = qed_llh_shadow_sanity(cdev, ppfid, 0, "get_free_idx");
 if (rc)
  return rc;

 *p_filter_idx = QED_LLH_INVALID_FILTER_IDX;

 p_filters = p_llh_info->pp_filters[ppfid];
 for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
  if (!p_filters[i].b_enabled) {
   *p_filter_idx = i;
   break;
  }
 }

 return 0;
}

static int
__qed_llh_shadow_add_filter(struct qed_dev *cdev,
       u8 ppfid,
       u8 filter_idx,
       enum qed_llh_filter_type type,
       union qed_llh_filter *p_filter, u32 *p_ref_cnt)
{
 struct qed_llh_info *p_llh_info = cdev->p_llh_info;
 struct qed_llh_filter_info *p_filters;
 int rc;

 rc = qed_llh_shadow_sanity(cdev, ppfid, filter_idx, "add");
 if (rc)
  return rc;

 p_filters = p_llh_info->pp_filters[ppfid];
 if (!p_filters[filter_idx].ref_cnt) {
  p_filters[filter_idx].b_enabled = true;
  p_filters[filter_idx].type = type;
  memcpy(&p_filters[filter_idx].filter, p_filter,
         sizeof(p_filters[filter_idx].filter));
 }

 *p_ref_cnt = ++p_filters[filter_idx].ref_cnt;

 return 0;
}

static int
qed_llh_shadow_add_filter(struct qed_dev *cdev,
     u8 ppfid,
     enum qed_llh_filter_type type,
     union qed_llh_filter *p_filter,
     u8 *p_filter_idx, u32 *p_ref_cnt)
{
 int rc;

 /* Check if the same filter already exist */
 rc = qed_llh_shadow_search_filter(cdev, ppfid, p_filter, p_filter_idx);
 if (rc)
  return rc;

 /* Find a new entry in case of a new filter */
 if (*p_filter_idx == QED_LLH_INVALID_FILTER_IDX) {
  rc = qed_llh_shadow_get_free_idx(cdev, ppfid, p_filter_idx);
  if (rc)
   return rc;
 }

 /* No free entry was found */
 if (*p_filter_idx == QED_LLH_INVALID_FILTER_IDX) {
  DP_NOTICE(cdev,
     "Failed to find an empty LLH filter to utilize [ppfid %d]\n",
     ppfid);
  return -EINVAL;
 }

 return __qed_llh_shadow_add_filter(cdev, ppfid, *p_filter_idx, type,
        p_filter, p_ref_cnt);
}

static int
__qed_llh_shadow_remove_filter(struct qed_dev *cdev,
          u8 ppfid, u8 filter_idx, u32 *p_ref_cnt)
{
 struct qed_llh_info *p_llh_info = cdev->p_llh_info;
 struct qed_llh_filter_info *p_filters;
 int rc;

 rc = qed_llh_shadow_sanity(cdev, ppfid, filter_idx, "remove");
 if (rc)
  return rc;

 p_filters = p_llh_info->pp_filters[ppfid];
 if (!p_filters[filter_idx].ref_cnt) {
  DP_NOTICE(cdev,
     "LLH shadow: trying to remove a filter with ref_cnt=0\n");
  return -EINVAL;
 }

 *p_ref_cnt = --p_filters[filter_idx].ref_cnt;
 if (!p_filters[filter_idx].ref_cnt)
  memset(&p_filters[filter_idx],
         0, sizeof(p_filters[filter_idx]));

 return 0;
}

static int
qed_llh_shadow_remove_filter(struct qed_dev *cdev,
        u8 ppfid,
        union qed_llh_filter *p_filter,
        u8 *p_filter_idx, u32 *p_ref_cnt)
{
 int rc;

 rc = qed_llh_shadow_search_filter(cdev, ppfid, p_filter, p_filter_idx);
 if (rc)
  return rc;

 /* No matching filter was found */
 if (*p_filter_idx == QED_LLH_INVALID_FILTER_IDX) {
  DP_NOTICE(cdev, "Failed to find a filter in the LLH shadow\n");
  return -EINVAL;
 }

 return __qed_llh_shadow_remove_filter(cdev, ppfid, *p_filter_idx,
           p_ref_cnt);
}

static int qed_llh_abs_ppfid(struct qed_dev *cdev, u8 ppfid, u8 *p_abs_ppfid)
{
 struct qed_llh_info *p_llh_info = cdev->p_llh_info;

 if (ppfid >= p_llh_info->num_ppfid) {
  DP_NOTICE(cdev,
     "ppfid %d is not valid, available indices are 0..%d\n",
     ppfid, p_llh_info->num_ppfid - 1);
  *p_abs_ppfid = 0;
  return -EINVAL;
 }

 *p_abs_ppfid = p_llh_info->ppfid_array[ppfid];

 return 0;
}

static int
qed_llh_set_engine_affin(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
 struct qed_dev *cdev = p_hwfn->cdev;
 enum qed_eng eng;
 u8 ppfid;
 int rc;

 rc = qed_mcp_get_engine_config(p_hwfn, p_ptt);
 if (rc != 0 && rc != -EOPNOTSUPP) {
  DP_NOTICE(p_hwfn,
     "Failed to get the engine affinity configuration\n");
  return rc;
 }

 /* RoCE PF is bound to a single engine */
 if (QED_IS_ROCE_PERSONALITY(p_hwfn)) {
  eng = cdev->fir_affin ? QED_ENG1 : QED_ENG0;
  rc = qed_llh_set_roce_affinity(cdev, eng);
  if (rc) {
   DP_NOTICE(cdev,
      "Failed to set the RoCE engine affinity\n");
   return rc;
  }

  DP_VERBOSE(cdev,
      QED_MSG_SP,
      "LLH: Set the engine affinity of RoCE packets as %d\n",
      eng);
 }

 /* Storage PF is bound to a single engine while L2 PF uses both */
 if (QED_IS_FCOE_PERSONALITY(p_hwfn) || QED_IS_ISCSI_PERSONALITY(p_hwfn) ||
     QED_IS_NVMETCP_PERSONALITY(p_hwfn))
  eng = cdev->fir_affin ? QED_ENG1 : QED_ENG0;
 else   /* L2_PERSONALITY */
  eng = QED_BOTH_ENG;

 for (ppfid = 0; ppfid < cdev->p_llh_info->num_ppfid; ppfid++) {
  rc = qed_llh_set_ppfid_affinity(cdev, ppfid, eng);
  if (rc) {
   DP_NOTICE(cdev,
      "Failed to set the engine affinity of ppfid %d\n",
      ppfid);
   return rc;
  }
 }

 DP_VERBOSE(cdev, QED_MSG_SP,
     "LLH: Set the engine affinity of non-RoCE packets as %d\n",
     eng);

 return 0;
}

static int qed_llh_hw_init_pf(struct qed_hwfn *p_hwfn,
         struct qed_ptt *p_ptt)
{
 struct qed_dev *cdev = p_hwfn->cdev;
 u8 ppfid, abs_ppfid;
 int rc;

 for (ppfid = 0; ppfid < cdev->p_llh_info->num_ppfid; ppfid++) {
  u32 addr;

  rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
  if (rc)
   return rc;

  addr = NIG_REG_LLH_PPFID2PFID_TBL_0 + abs_ppfid * 0x4;
  qed_wr(p_hwfn, p_ptt, addr, p_hwfn->rel_pf_id);
 }

 if (test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits) &&
     !QED_IS_FCOE_PERSONALITY(p_hwfn)) {
  rc = qed_llh_add_mac_filter(cdev, 0,
         p_hwfn->hw_info.hw_mac_addr);
  if (rc)
   DP_NOTICE(cdev,
      "Failed to add an LLH filter with the primary MAC\n");
 }

 if (QED_IS_CMT(cdev)) {
  rc = qed_llh_set_engine_affin(p_hwfn, p_ptt);
  if (rc)
   return rc;
 }

 return 0;
}

u8 qed_llh_get_num_ppfid(struct qed_dev *cdev)
{
 return cdev->p_llh_info->num_ppfid;
}

#define NIG_REG_PPF_TO_ENGINE_SEL_ROCE_MASK             0x3
#define NIG_REG_PPF_TO_ENGINE_SEL_ROCE_SHIFT            0
#define NIG_REG_PPF_TO_ENGINE_SEL_NON_ROCE_MASK         0x3
#define NIG_REG_PPF_TO_ENGINE_SEL_NON_ROCE_SHIFT        2

int qed_llh_set_ppfid_affinity(struct qed_dev *cdev, u8 ppfid, enum qed_eng eng)
{
 struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
 struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
 u32 addr, val, eng_sel;
 u8 abs_ppfid;
 int rc = 0;

 if (!p_ptt)
  return -EAGAIN;

 if (!QED_IS_CMT(cdev))
  goto out;

 rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
 if (rc)
  goto out;

 switch (eng) {
 case QED_ENG0:
  eng_sel = 0;
  break;
 case QED_ENG1:
  eng_sel = 1;
  break;
 case QED_BOTH_ENG:
  eng_sel = 2;
  break;
 default:
  DP_NOTICE(cdev, "Invalid affinity value for ppfid [%d]\n", eng);
  rc = -EINVAL;
  goto out;
 }

 addr = NIG_REG_PPF_TO_ENGINE_SEL + abs_ppfid * 0x4;
 val = qed_rd(p_hwfn, p_ptt, addr);
 SET_FIELD(val, NIG_REG_PPF_TO_ENGINE_SEL_NON_ROCE, eng_sel);
 qed_wr(p_hwfn, p_ptt, addr, val);

 /* The iWARP affinity is set as the affinity of ppfid 0 */
 if (!ppfid && QED_IS_IWARP_PERSONALITY(p_hwfn))
  cdev->iwarp_affin = (eng == QED_ENG1) ? 1 : 0;
out:
 qed_ptt_release(p_hwfn, p_ptt);

 return rc;
}

int qed_llh_set_roce_affinity(struct qed_dev *cdev, enum qed_eng eng)
{
 struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
 struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
 u32 addr, val, eng_sel;
 u8 ppfid, abs_ppfid;
 int rc = 0;

 if (!p_ptt)
  return -EAGAIN;

 if (!QED_IS_CMT(cdev))
  goto out;

 switch (eng) {
 case QED_ENG0:
  eng_sel = 0;
  break;
 case QED_ENG1:
  eng_sel = 1;
  break;
 case QED_BOTH_ENG:
  eng_sel = 2;
  qed_wr(p_hwfn, p_ptt, NIG_REG_LLH_ENG_CLS_ROCE_QP_SEL,
         0xf);  /* QP bit 15 */
  break;
 default:
  DP_NOTICE(cdev, "Invalid affinity value for RoCE [%d]\n", eng);
  rc = -EINVAL;
  goto out;
 }

 for (ppfid = 0; ppfid < cdev->p_llh_info->num_ppfid; ppfid++) {
  rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
  if (rc)
   goto out;

  addr = NIG_REG_PPF_TO_ENGINE_SEL + abs_ppfid * 0x4;
  val = qed_rd(p_hwfn, p_ptt, addr);
  SET_FIELD(val, NIG_REG_PPF_TO_ENGINE_SEL_ROCE, eng_sel);
  qed_wr(p_hwfn, p_ptt, addr, val);
 }
out:
 qed_ptt_release(p_hwfn, p_ptt);

 return rc;
}

struct qed_llh_filter_details {
 u64 value;
 u32 mode;
 u32 protocol_type;
 u32 hdr_sel;
 u32 enable;
};

static int
qed_llh_access_filter(struct qed_hwfn *p_hwfn,
        struct qed_ptt *p_ptt,
        u8 abs_ppfid,
        u8 filter_idx,
        struct qed_llh_filter_details *p_details)
{
 struct qed_dmae_params params = {0};
 u32 addr;
 u8 pfid;
 int rc;

 /* The NIG/LLH registers that are accessed in this function have only 16
 * rows which are exposed to a PF. I.e. only the 16 filters of its
 * default ppfid. Accessing filters of other ppfids requires pretending
 * to another PFs.
 * The calculation of PPFID->PFID in AH is based on the relative index
 * of a PF on its port.
 * For BB the pfid is actually the abs_ppfid.
 */
 if (QED_IS_BB(p_hwfn->cdev))
  pfid = abs_ppfid;
 else
  pfid = abs_ppfid * p_hwfn->cdev->num_ports_in_engine +
      MFW_PORT(p_hwfn);

 /* Filter enable - should be done first when removing a filter */
 if (!p_details->enable) {
  qed_fid_pretend(p_hwfn, p_ptt,
    pfid << PXP_PRETEND_CONCRETE_FID_PFID_SHIFT);

  addr = NIG_REG_LLH_FUNC_FILTER_EN + filter_idx * 0x4;
  qed_wr(p_hwfn, p_ptt, addr, p_details->enable);

  qed_fid_pretend(p_hwfn, p_ptt,
    p_hwfn->rel_pf_id <<
    PXP_PRETEND_CONCRETE_FID_PFID_SHIFT);
 }

 /* Filter value */
 addr = NIG_REG_LLH_FUNC_FILTER_VALUE + 2 * filter_idx * 0x4;

 SET_FIELD(params.flags, QED_DMAE_PARAMS_DST_PF_VALID, 0x1);
 params.dst_pfid = pfid;
 rc = qed_dmae_host2grc(p_hwfn,
          p_ptt,
          (u64)(uintptr_t)&p_details->value,
          addr, 2 /* size_in_dwords */,
          ¶ms);
 if (rc)
  return rc;

 qed_fid_pretend(p_hwfn, p_ptt,
   pfid << PXP_PRETEND_CONCRETE_FID_PFID_SHIFT);

 /* Filter mode */
 addr = NIG_REG_LLH_FUNC_FILTER_MODE + filter_idx * 0x4;
 qed_wr(p_hwfn, p_ptt, addr, p_details->mode);

 /* Filter protocol type */
 addr = NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE + filter_idx * 0x4;
 qed_wr(p_hwfn, p_ptt, addr, p_details->protocol_type);

 /* Filter header select */
 addr = NIG_REG_LLH_FUNC_FILTER_HDR_SEL + filter_idx * 0x4;
 qed_wr(p_hwfn, p_ptt, addr, p_details->hdr_sel);

 /* Filter enable - should be done last when adding a filter */
 if (p_details->enable) {
  addr = NIG_REG_LLH_FUNC_FILTER_EN + filter_idx * 0x4;
  qed_wr(p_hwfn, p_ptt, addr, p_details->enable);
 }

 qed_fid_pretend(p_hwfn, p_ptt,
   p_hwfn->rel_pf_id <<
   PXP_PRETEND_CONCRETE_FID_PFID_SHIFT);

 return 0;
}

static int
qed_llh_add_filter(struct qed_hwfn *p_hwfn,
     struct qed_ptt *p_ptt,
     u8 abs_ppfid,
     u8 filter_idx, u8 filter_prot_type, u32 high, u32 low)
{
 struct qed_llh_filter_details filter_details;

 filter_details.enable = 1;
 filter_details.value = ((u64)high << 32) | low;
 filter_details.hdr_sel = 0;
 filter_details.protocol_type = filter_prot_type;
 /* Mode: 0: MAC-address classification 1: protocol classification */
 filter_details.mode = filter_prot_type ? 1 : 0;

 return qed_llh_access_filter(p_hwfn, p_ptt, abs_ppfid, filter_idx,
         &filter_details);
}

static int
qed_llh_remove_filter(struct qed_hwfn *p_hwfn,
        struct qed_ptt *p_ptt, u8 abs_ppfid, u8 filter_idx)
{
 struct qed_llh_filter_details filter_details = {0};

 return qed_llh_access_filter(p_hwfn, p_ptt, abs_ppfid, filter_idx,
         &filter_details);
}

int qed_llh_add_mac_filter(struct qed_dev *cdev,
      u8 ppfid, const u8 mac_addr[ETH_ALEN])
{
 struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
 struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
 union qed_llh_filter filter = {};
 u8 filter_idx, abs_ppfid = 0;
 u32 high, low, ref_cnt;
 int rc = 0;

 if (!p_ptt)
  return -EAGAIN;

 if (!test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits))
  goto out;

 memcpy(filter.mac.addr, mac_addr, ETH_ALEN);
 rc = qed_llh_shadow_add_filter(cdev, ppfid,
           QED_LLH_FILTER_TYPE_MAC,
           &filter, &filter_idx, &ref_cnt);
 if (rc)
  goto err;

 /* Configure the LLH only in case of a new the filter */
 if (ref_cnt == 1) {
  rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
  if (rc)
   goto err;

  high = mac_addr[1] | (mac_addr[0] << 8);
  low = mac_addr[5] | (mac_addr[4] << 8) | (mac_addr[3] << 16) |
        (mac_addr[2] << 24);
  rc = qed_llh_add_filter(p_hwfn, p_ptt, abs_ppfid, filter_idx,
     0, high, low);
  if (rc)
   goto err;
 }

 DP_VERBOSE(cdev,
     QED_MSG_SP,
     "LLH: Added MAC filter [%pM] to ppfid %hhd [abs %hhd] at idx %hhd [ref_cnt %d]\n",
     mac_addr, ppfid, abs_ppfid, filter_idx, ref_cnt);

 goto out;

err: DP_NOTICE(cdev,
    "LLH: Failed to add MAC filter [%pM] to ppfid %hhd\n",
    mac_addr, ppfid);
out:
 qed_ptt_release(p_hwfn, p_ptt);

 return rc;
}

static int
qed_llh_protocol_filter_stringify(struct qed_dev *cdev,
      enum qed_llh_prot_filter_type_t type,
      u16 source_port_or_eth_type,
      u16 dest_port, u8 *str, size_t str_len)
{
 switch (type) {
 case QED_LLH_FILTER_ETHERTYPE:
  snprintf(str, str_len, "Ethertype 0x%04x",
    source_port_or_eth_type);
  break;
 case QED_LLH_FILTER_TCP_SRC_PORT:
  snprintf(str, str_len, "TCP src port 0x%04x",
    source_port_or_eth_type);
  break;
 case QED_LLH_FILTER_UDP_SRC_PORT:
  snprintf(str, str_len, "UDP src port 0x%04x",
    source_port_or_eth_type);
  break;
 case QED_LLH_FILTER_TCP_DEST_PORT:
  snprintf(str, str_len, "TCP dst port 0x%04x", dest_port);
  break;
 case QED_LLH_FILTER_UDP_DEST_PORT:
  snprintf(str, str_len, "UDP dst port 0x%04x", dest_port);
  break;
 case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
  snprintf(str, str_len, "TCP src/dst ports 0x%04x/0x%04x",
    source_port_or_eth_type, dest_port);
  break;
 case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
  snprintf(str, str_len, "UDP src/dst ports 0x%04x/0x%04x",
    source_port_or_eth_type, dest_port);
  break;
 default:
  DP_NOTICE(cdev,
     "Non valid LLH protocol filter type %d\n", type);
  return -EINVAL;
 }

 return 0;
}

static int
qed_llh_protocol_filter_to_hilo(struct qed_dev *cdev,
    enum qed_llh_prot_filter_type_t type,
    u16 source_port_or_eth_type,
    u16 dest_port, u32 *p_high, u32 *p_low)
{
 *p_high = 0;
 *p_low = 0;

 switch (type) {
 case QED_LLH_FILTER_ETHERTYPE:
  *p_high = source_port_or_eth_type;
  break;
 case QED_LLH_FILTER_TCP_SRC_PORT:
 case QED_LLH_FILTER_UDP_SRC_PORT:
  *p_low = source_port_or_eth_type << 16;
  break;
 case QED_LLH_FILTER_TCP_DEST_PORT:
 case QED_LLH_FILTER_UDP_DEST_PORT:
  *p_low = dest_port;
  break;
 case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
 case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
  *p_low = (source_port_or_eth_type << 16) | dest_port;
  break;
 default:
  DP_NOTICE(cdev,
     "Non valid LLH protocol filter type %d\n", type);
  return -EINVAL;
 }

 return 0;
}

int
qed_llh_add_protocol_filter(struct qed_dev *cdev,
       u8 ppfid,
       enum qed_llh_prot_filter_type_t type,
       u16 source_port_or_eth_type, u16 dest_port)
{
 struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
 struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
 u8 filter_idx, abs_ppfid, str[32], type_bitmap;
 union qed_llh_filter filter = {};
 u32 high, low, ref_cnt;
 int rc = 0;

 if (!p_ptt)
  return -EAGAIN;

 if (!test_bit(QED_MF_LLH_PROTO_CLSS, &cdev->mf_bits))
  goto out;

 rc = qed_llh_protocol_filter_stringify(cdev, type,
            source_port_or_eth_type,
            dest_port, str, sizeof(str));
 if (rc)
  goto err;

 filter.protocol.type = type;
 filter.protocol.source_port_or_eth_type = source_port_or_eth_type;
 filter.protocol.dest_port = dest_port;
 rc = qed_llh_shadow_add_filter(cdev,
           ppfid,
           QED_LLH_FILTER_TYPE_PROTOCOL,
           &filter, &filter_idx, &ref_cnt);
 if (rc)
  goto err;

 rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
 if (rc)
  goto err;

 /* Configure the LLH only in case of a new the filter */
 if (ref_cnt == 1) {
  rc = qed_llh_protocol_filter_to_hilo(cdev, type,
           source_port_or_eth_type,
           dest_port, &high, &low);
  if (rc)
   goto err;

  type_bitmap = 0x1 << type;
  rc = qed_llh_add_filter(p_hwfn, p_ptt, abs_ppfid,
     filter_idx, type_bitmap, high, low);
  if (rc)
   goto err;
 }

 DP_VERBOSE(cdev,
     QED_MSG_SP,
     "LLH: Added protocol filter [%s] to ppfid %hhd [abs %hhd] at idx %hhd [ref_cnt %d]\n",
     str, ppfid, abs_ppfid, filter_idx, ref_cnt);

 goto out;

err: DP_NOTICE(p_hwfn,
    "LLH: Failed to add protocol filter [%s] to ppfid %hhd\n",
    str, ppfid);
out:
 qed_ptt_release(p_hwfn, p_ptt);

 return rc;
}

void qed_llh_remove_mac_filter(struct qed_dev *cdev,
          u8 ppfid, u8 mac_addr[ETH_ALEN])
{
 struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
 struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
 union qed_llh_filter filter = {};
 u8 filter_idx, abs_ppfid;
 int rc = 0;
 u32 ref_cnt;

 if (!p_ptt)
  return;

 if (!test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits))
  goto out;

 if (QED_IS_NVMETCP_PERSONALITY(p_hwfn))
  return;

 ether_addr_copy(filter.mac.addr, mac_addr);
 rc = qed_llh_shadow_remove_filter(cdev, ppfid, &filter, &filter_idx,
       &ref_cnt);
 if (rc)
  goto err;

 rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
 if (rc)
  goto err;

 /* Remove from the LLH in case the filter is not in use */
 if (!ref_cnt) {
  rc = qed_llh_remove_filter(p_hwfn, p_ptt, abs_ppfid,
        filter_idx);
  if (rc)
   goto err;
 }

 DP_VERBOSE(cdev,
     QED_MSG_SP,
     "LLH: Removed MAC filter [%pM] from ppfid %hhd [abs %hhd] at idx %hhd [ref_cnt %d]\n",
     mac_addr, ppfid, abs_ppfid, filter_idx, ref_cnt);

 goto out;

err: DP_NOTICE(cdev,
    "LLH: Failed to remove MAC filter [%pM] from ppfid %hhd\n",
    mac_addr, ppfid);
out:
 qed_ptt_release(p_hwfn, p_ptt);
}

void qed_llh_remove_protocol_filter(struct qed_dev *cdev,
        u8 ppfid,
        enum qed_llh_prot_filter_type_t type,
        u16 source_port_or_eth_type, u16 dest_port)
{
 struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
 struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
 u8 filter_idx, abs_ppfid, str[32];
 union qed_llh_filter filter = {};
 int rc = 0;
 u32 ref_cnt;

 if (!p_ptt)
  return;

 if (!test_bit(QED_MF_LLH_PROTO_CLSS, &cdev->mf_bits))
  goto out;

 rc = qed_llh_protocol_filter_stringify(cdev, type,
            source_port_or_eth_type,
            dest_port, str, sizeof(str));
 if (rc)
  goto err;

 filter.protocol.type = type;
 filter.protocol.source_port_or_eth_type = source_port_or_eth_type;
 filter.protocol.dest_port = dest_port;
 rc = qed_llh_shadow_remove_filter(cdev, ppfid, &filter, &filter_idx,
       &ref_cnt);
 if (rc)
  goto err;

 rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
 if (rc)
  goto err;

 /* Remove from the LLH in case the filter is not in use */
 if (!ref_cnt) {
  rc = qed_llh_remove_filter(p_hwfn, p_ptt, abs_ppfid,
        filter_idx);
  if (rc)
   goto err;
 }

 DP_VERBOSE(cdev,
     QED_MSG_SP,
     "LLH: Removed protocol filter [%s] from ppfid %hhd [abs %hhd] at idx %hhd [ref_cnt %d]\n",
     str, ppfid, abs_ppfid, filter_idx, ref_cnt);

 goto out;

err: DP_NOTICE(cdev,
    "LLH: Failed to remove protocol filter [%s] from ppfid %hhd\n",
    str, ppfid);
out:
 qed_ptt_release(p_hwfn, p_ptt);
}

/******************************* NIG LLH - End ********************************/

#define QED_MIN_DPIS            (4)
#define QED_MIN_PWM_REGION      (QED_WID_SIZE * QED_MIN_DPIS)

static u32 qed_hw_bar_size(struct qed_hwfn *p_hwfn,
      struct qed_ptt *p_ptt, enum BAR_ID bar_id)
{
 u32 bar_reg = (bar_id == BAR_ID_0 ?
         PGLUE_B_REG_PF_BAR0_SIZE : PGLUE_B_REG_PF_BAR1_SIZE);
 u32 val;

 if (IS_VF(p_hwfn->cdev))
  return qed_vf_hw_bar_size(p_hwfn, bar_id);

 val = qed_rd(p_hwfn, p_ptt, bar_reg);
 if (val)
  return 1 << (val + 15);

 /* Old MFW initialized above registered only conditionally */
 if (p_hwfn->cdev->num_hwfns > 1) {
  DP_INFO(p_hwfn,
   "BAR size not configured. Assuming BAR size of 256kB for GRC and 512kB for DB\n");
   return BAR_ID_0 ? 256 * 1024 : 512 * 1024;
 } else {
  DP_INFO(p_hwfn,
   "BAR size not configured. Assuming BAR size of 512kB for GRC and 512kB for DB\n");
   return 512 * 1024;
 }
}

void qed_init_dp(struct qed_dev *cdev, u32 dp_module, u8 dp_level)
{
 u32 i;

 cdev->dp_level = dp_level;
 cdev->dp_module = dp_module;
 for (i = 0; i < MAX_HWFNS_PER_DEVICE; i++) {
  struct qed_hwfn *p_hwfn = &cdev->hwfns[i];

  p_hwfn->dp_level = dp_level;
  p_hwfn->dp_module = dp_module;
 }
}

void qed_init_struct(struct qed_dev *cdev)
{
 u8 i;

 for (i = 0; i < MAX_HWFNS_PER_DEVICE; i++) {
  struct qed_hwfn *p_hwfn = &cdev->hwfns[i];

  p_hwfn->cdev = cdev;
  p_hwfn->my_id = i;
  p_hwfn->b_active = false;

  mutex_init(&p_hwfn->dmae_info.mutex);
 }

 /* hwfn 0 is always active */
 cdev->hwfns[0].b_active = true;

 /* set the default cache alignment to 128 */
 cdev->cache_shift = 7;
}

static void qed_qm_info_free(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;

 kfree(qm_info->qm_pq_params);
 qm_info->qm_pq_params = NULL;
 kfree(qm_info->qm_vport_params);
 qm_info->qm_vport_params = NULL;
 kfree(qm_info->qm_port_params);
 qm_info->qm_port_params = NULL;
 kfree(qm_info->wfq_data);
 qm_info->wfq_data = NULL;
}

static void qed_dbg_user_data_free(struct qed_hwfn *p_hwfn)
{
 kfree(p_hwfn->dbg_user_info);
 p_hwfn->dbg_user_info = NULL;
}

void qed_resc_free(struct qed_dev *cdev)
{
 struct qed_rdma_info *rdma_info;
 struct qed_hwfn *p_hwfn;
 int i;

 if (IS_VF(cdev)) {
  for_each_hwfn(cdev, i)
   qed_l2_free(&cdev->hwfns[i]);
  return;
 }

 kfree(cdev->fw_data);
 cdev->fw_data = NULL;

 kfree(cdev->reset_stats);
 cdev->reset_stats = NULL;

 qed_llh_free(cdev);

 for_each_hwfn(cdev, i) {
  p_hwfn = cdev->hwfns + i;
  rdma_info = p_hwfn->p_rdma_info;

  qed_cxt_mngr_free(p_hwfn);
  qed_qm_info_free(p_hwfn);
  qed_spq_free(p_hwfn);
  qed_eq_free(p_hwfn);
  qed_consq_free(p_hwfn);
  qed_int_free(p_hwfn);
#ifdef CONFIG_QED_LL2
  qed_ll2_free(p_hwfn);
#endif
  if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
   qed_fcoe_free(p_hwfn);

  if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
   qed_iscsi_free(p_hwfn);
   qed_ooo_free(p_hwfn);
  }

  if (p_hwfn->hw_info.personality == QED_PCI_NVMETCP) {
   qed_nvmetcp_free(p_hwfn);
   qed_ooo_free(p_hwfn);
  }

  if (QED_IS_RDMA_PERSONALITY(p_hwfn) && rdma_info) {
   qed_spq_unregister_async_cb(p_hwfn, rdma_info->proto);
   qed_rdma_info_free(p_hwfn);
  }

  qed_spq_unregister_async_cb(p_hwfn, PROTOCOLID_COMMON);
  qed_iov_free(p_hwfn);
  qed_l2_free(p_hwfn);
  qed_dmae_info_free(p_hwfn);
  qed_dcbx_info_free(p_hwfn);
  qed_dbg_user_data_free(p_hwfn);
  qed_fw_overlay_mem_free(p_hwfn, &p_hwfn->fw_overlay_mem);

  /* Destroy doorbell recovery mechanism */
  qed_db_recovery_teardown(p_hwfn);
 }
}

/******************** QM initialization *******************/
#define ACTIVE_TCS_BMAP 0x9f
#define ACTIVE_TCS_BMAP_4PORT_K2 0xf

/* determines the physical queue flags for a given PF. */
static u32 qed_get_pq_flags(struct qed_hwfn *p_hwfn)
{
 u32 flags;

 /* common flags */
 flags = PQ_FLAGS_LB;

 /* feature flags */
 if (IS_QED_SRIOV(p_hwfn->cdev))
  flags |= PQ_FLAGS_VFS;

 /* protocol flags */
 switch (p_hwfn->hw_info.personality) {
 case QED_PCI_ETH:
  flags |= PQ_FLAGS_MCOS;
  break;
 case QED_PCI_FCOE:
  flags |= PQ_FLAGS_OFLD;
  break;
 case QED_PCI_ISCSI:
 case QED_PCI_NVMETCP:
  flags |= PQ_FLAGS_ACK | PQ_FLAGS_OOO | PQ_FLAGS_OFLD;
  break;
 case QED_PCI_ETH_ROCE:
  flags |= PQ_FLAGS_MCOS | PQ_FLAGS_OFLD | PQ_FLAGS_LLT;
  if (IS_QED_MULTI_TC_ROCE(p_hwfn))
   flags |= PQ_FLAGS_MTC;
  break;
 case QED_PCI_ETH_IWARP:
  flags |= PQ_FLAGS_MCOS | PQ_FLAGS_ACK | PQ_FLAGS_OOO |
      PQ_FLAGS_OFLD;
  break;
 default:
  DP_ERR(p_hwfn,
         "unknown personality %d\n", p_hwfn->hw_info.personality);
  return 0;
 }

 return flags;
}

/* Getters for resource amounts necessary for qm initialization */
static u8 qed_init_qm_get_num_tcs(struct qed_hwfn *p_hwfn)
{
 return p_hwfn->hw_info.num_hw_tc;
}

static u16 qed_init_qm_get_num_vfs(struct qed_hwfn *p_hwfn)
{
 return IS_QED_SRIOV(p_hwfn->cdev) ?
        p_hwfn->cdev->p_iov_info->total_vfs : 0;
}

static u8 qed_init_qm_get_num_mtc_tcs(struct qed_hwfn *p_hwfn)
{
 u32 pq_flags = qed_get_pq_flags(p_hwfn);

 if (!(PQ_FLAGS_MTC & pq_flags))
  return 1;

 return qed_init_qm_get_num_tcs(p_hwfn);
}

#define NUM_DEFAULT_RLS 1

static u16 qed_init_qm_get_num_pf_rls(struct qed_hwfn *p_hwfn)
{
 u16 num_pf_rls, num_vfs = qed_init_qm_get_num_vfs(p_hwfn);

 /* num RLs can't exceed resource amount of rls or vports */
 num_pf_rls = (u16)min_t(u32, RESC_NUM(p_hwfn, QED_RL),
    RESC_NUM(p_hwfn, QED_VPORT));

 /* Make sure after we reserve there's something left */
 if (num_pf_rls < num_vfs + NUM_DEFAULT_RLS)
  return 0;

 /* subtract rls necessary for VFs and one default one for the PF */
 num_pf_rls -= num_vfs + NUM_DEFAULT_RLS;

 return num_pf_rls;
}

static u16 qed_init_qm_get_num_vports(struct qed_hwfn *p_hwfn)
{
 u32 pq_flags = qed_get_pq_flags(p_hwfn);

 /* all pqs share the same vport, except for vfs and pf_rl pqs */
 return (!!(PQ_FLAGS_RLS & pq_flags)) *
        qed_init_qm_get_num_pf_rls(p_hwfn) +
        (!!(PQ_FLAGS_VFS & pq_flags)) *
        qed_init_qm_get_num_vfs(p_hwfn) + 1;
}

/* calc amount of PQs according to the requested flags */
static u16 qed_init_qm_get_num_pqs(struct qed_hwfn *p_hwfn)
{
 u32 pq_flags = qed_get_pq_flags(p_hwfn);

 return (!!(PQ_FLAGS_RLS & pq_flags)) *
        qed_init_qm_get_num_pf_rls(p_hwfn) +
        (!!(PQ_FLAGS_MCOS & pq_flags)) *
        qed_init_qm_get_num_tcs(p_hwfn) +
        (!!(PQ_FLAGS_LB & pq_flags)) + (!!(PQ_FLAGS_OOO & pq_flags)) +
        (!!(PQ_FLAGS_ACK & pq_flags)) +
        (!!(PQ_FLAGS_OFLD & pq_flags)) *
        qed_init_qm_get_num_mtc_tcs(p_hwfn) +
        (!!(PQ_FLAGS_LLT & pq_flags)) *
        qed_init_qm_get_num_mtc_tcs(p_hwfn) +
        (!!(PQ_FLAGS_VFS & pq_flags)) * qed_init_qm_get_num_vfs(p_hwfn);
}

/* initialize the top level QM params */
static void qed_init_qm_params(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;
 bool four_port;

 /* pq and vport bases for this PF */
 qm_info->start_pq = (u16)RESC_START(p_hwfn, QED_PQ);
 qm_info->start_vport = (u8)RESC_START(p_hwfn, QED_VPORT);

 /* rate limiting and weighted fair queueing are always enabled */
 qm_info->vport_rl_en = true;
 qm_info->vport_wfq_en = true;

 /* TC config is different for AH 4 port */
 four_port = p_hwfn->cdev->num_ports_in_engine == MAX_NUM_PORTS_K2;

 /* in AH 4 port we have fewer TCs per port */
 qm_info->max_phys_tcs_per_port = four_port ? NUM_PHYS_TCS_4PORT_K2 :
           NUM_OF_PHYS_TCS;

 /* unless MFW indicated otherwise, ooo_tc == 3 for
 * AH 4-port and 4 otherwise.
 */
 if (!qm_info->ooo_tc)
  qm_info->ooo_tc = four_port ? DCBX_TCP_OOO_K2_4PORT_TC :
           DCBX_TCP_OOO_TC;
}

/* initialize qm vport params */
static void qed_init_qm_vport_params(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;
 u8 i;

 /* all vports participate in weighted fair queueing */
 for (i = 0; i < qed_init_qm_get_num_vports(p_hwfn); i++)
  qm_info->qm_vport_params[i].wfq = 1;
}

/* initialize qm port params */
static void qed_init_qm_port_params(struct qed_hwfn *p_hwfn)
{
 /* Initialize qm port parameters */
 u8 i, active_phys_tcs, num_ports = p_hwfn->cdev->num_ports_in_engine;
 struct qed_dev *cdev = p_hwfn->cdev;

 /* indicate how ooo and high pri traffic is dealt with */
 active_phys_tcs = num_ports == MAX_NUM_PORTS_K2 ?
     ACTIVE_TCS_BMAP_4PORT_K2 :
     ACTIVE_TCS_BMAP;

 for (i = 0; i < num_ports; i++) {
  struct init_qm_port_params *p_qm_port =
      &p_hwfn->qm_info.qm_port_params[i];
  u16 pbf_max_cmd_lines;

  p_qm_port->active = 1;
  p_qm_port->active_phys_tcs = active_phys_tcs;
  pbf_max_cmd_lines = (u16)NUM_OF_PBF_CMD_LINES(cdev);
  p_qm_port->num_pbf_cmd_lines = pbf_max_cmd_lines / num_ports;
  p_qm_port->num_btb_blocks = NUM_OF_BTB_BLOCKS(cdev) / num_ports;
 }
}

/* Reset the params which must be reset for qm init. QM init may be called as
 * a result of flows other than driver load (e.g. dcbx renegotiation). Other
 * params may be affected by the init but would simply recalculate to the same
 * values. The allocations made for QM init, ports, vports, pqs and vfqs are not
 * affected as these amounts stay the same.
 */
static void qed_init_qm_reset_params(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;

 qm_info->num_pqs = 0;
 qm_info->num_vports = 0;
 qm_info->num_pf_rls = 0;
 qm_info->num_vf_pqs = 0;
 qm_info->first_vf_pq = 0;
 qm_info->first_mcos_pq = 0;
 qm_info->first_rl_pq = 0;
}

static void qed_init_qm_advance_vport(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;

 qm_info->num_vports++;

 if (qm_info->num_vports > qed_init_qm_get_num_vports(p_hwfn))
  DP_ERR(p_hwfn,
         "vport overflow! qm_info->num_vports %d, qm_init_get_num_vports() %d\n",
         qm_info->num_vports, qed_init_qm_get_num_vports(p_hwfn));
}

/* initialize a single pq and manage qm_info resources accounting.
 * The pq_init_flags param determines whether the PQ is rate limited
 * (for VF or PF) and whether a new vport is allocated to the pq or not
 * (i.e. vport will be shared).
 */

/* flags for pq init */
#define PQ_INIT_SHARE_VPORT     BIT(0)
#define PQ_INIT_PF_RL           BIT(1)
#define PQ_INIT_VF_RL           BIT(2)

/* defines for pq init */
#define PQ_INIT_DEFAULT_WRR_GROUP       1
#define PQ_INIT_DEFAULT_TC              0

void qed_hw_info_set_offload_tc(struct qed_hw_info *p_info, u8 tc)
{
 p_info->offload_tc = tc;
 p_info->offload_tc_set = true;
}

static bool qed_is_offload_tc_set(struct qed_hwfn *p_hwfn)
{
 return p_hwfn->hw_info.offload_tc_set;
}

static u32 qed_get_offload_tc(struct qed_hwfn *p_hwfn)
{
 if (qed_is_offload_tc_set(p_hwfn))
  return p_hwfn->hw_info.offload_tc;

 return PQ_INIT_DEFAULT_TC;
}

static void qed_init_qm_pq(struct qed_hwfn *p_hwfn,
      struct qed_qm_info *qm_info,
      u8 tc, u32 pq_init_flags)
{
 u16 pq_idx = qm_info->num_pqs, max_pq = qed_init_qm_get_num_pqs(p_hwfn);

 if (pq_idx > max_pq)
  DP_ERR(p_hwfn,
         "pq overflow! pq %d, max pq %d\n", pq_idx, max_pq);

 /* init pq params */
 qm_info->qm_pq_params[pq_idx].port_id = p_hwfn->port_id;
 qm_info->qm_pq_params[pq_idx].vport_id = qm_info->start_vport +
     qm_info->num_vports;
 qm_info->qm_pq_params[pq_idx].tc_id = tc;
 qm_info->qm_pq_params[pq_idx].wrr_group = PQ_INIT_DEFAULT_WRR_GROUP;
 qm_info->qm_pq_params[pq_idx].rl_valid =
     (pq_init_flags & PQ_INIT_PF_RL || pq_init_flags & PQ_INIT_VF_RL);

 /* qm params accounting */
 qm_info->num_pqs++;
 if (!(pq_init_flags & PQ_INIT_SHARE_VPORT))
  qm_info->num_vports++;

 if (pq_init_flags & PQ_INIT_PF_RL)
  qm_info->num_pf_rls++;

 if (qm_info->num_vports > qed_init_qm_get_num_vports(p_hwfn))
  DP_ERR(p_hwfn,
         "vport overflow! qm_info->num_vports %d, qm_init_get_num_vports() %d\n",
         qm_info->num_vports, qed_init_qm_get_num_vports(p_hwfn));

 if (qm_info->num_pf_rls > qed_init_qm_get_num_pf_rls(p_hwfn))
  DP_ERR(p_hwfn,
         "rl overflow! qm_info->num_pf_rls %d, qm_init_get_num_pf_rls() %d\n",
         qm_info->num_pf_rls, qed_init_qm_get_num_pf_rls(p_hwfn));
}

/* get pq index according to PQ_FLAGS */
static u16 *qed_init_qm_get_idx_from_flags(struct qed_hwfn *p_hwfn,
        unsigned long pq_flags)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;

 /* Can't have multiple flags set here */
 if (bitmap_weight(&pq_flags,
     sizeof(pq_flags) * BITS_PER_BYTE) > 1) {
  DP_ERR(p_hwfn, "requested multiple pq flags 0x%lx\n", pq_flags);
  goto err;
 }

 if (!(qed_get_pq_flags(p_hwfn) & pq_flags)) {
  DP_ERR(p_hwfn, "pq flag 0x%lx is not set\n", pq_flags);
  goto err;
 }

 switch (pq_flags) {
 case PQ_FLAGS_RLS:
  return &qm_info->first_rl_pq;
 case PQ_FLAGS_MCOS:
  return &qm_info->first_mcos_pq;
 case PQ_FLAGS_LB:
  return &qm_info->pure_lb_pq;
 case PQ_FLAGS_OOO:
  return &qm_info->ooo_pq;
 case PQ_FLAGS_ACK:
  return &qm_info->pure_ack_pq;
 case PQ_FLAGS_OFLD:
  return &qm_info->first_ofld_pq;
 case PQ_FLAGS_LLT:
  return &qm_info->first_llt_pq;
 case PQ_FLAGS_VFS:
  return &qm_info->first_vf_pq;
 default:
  goto err;
 }

err:
 return &qm_info->start_pq;
}

/* save pq index in qm info */
static void qed_init_qm_set_idx(struct qed_hwfn *p_hwfn,
    u32 pq_flags, u16 pq_val)
{
 u16 *base_pq_idx = qed_init_qm_get_idx_from_flags(p_hwfn, pq_flags);

 *base_pq_idx = p_hwfn->qm_info.start_pq + pq_val;
}

/* get tx pq index, with the PQ TX base already set (ready for context init) */
u16 qed_get_cm_pq_idx(struct qed_hwfn *p_hwfn, u32 pq_flags)
{
 u16 *base_pq_idx = qed_init_qm_get_idx_from_flags(p_hwfn, pq_flags);

 return *base_pq_idx + CM_TX_PQ_BASE;
}

u16 qed_get_cm_pq_idx_mcos(struct qed_hwfn *p_hwfn, u8 tc)
{
 u8 max_tc = qed_init_qm_get_num_tcs(p_hwfn);

 if (max_tc == 0) {
  DP_ERR(p_hwfn, "pq with flag 0x%lx do not exist\n",
         PQ_FLAGS_MCOS);
  return p_hwfn->qm_info.start_pq;
 }

 if (tc > max_tc)
  DP_ERR(p_hwfn, "tc %d must be smaller than %d\n", tc, max_tc);

 return qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_MCOS) + (tc % max_tc);
}

u16 qed_get_cm_pq_idx_vf(struct qed_hwfn *p_hwfn, u16 vf)
{
 u16 max_vf = qed_init_qm_get_num_vfs(p_hwfn);

 if (max_vf == 0) {
  DP_ERR(p_hwfn, "pq with flag 0x%lx do not exist\n",
         PQ_FLAGS_VFS);
  return p_hwfn->qm_info.start_pq;
 }

 if (vf > max_vf)
  DP_ERR(p_hwfn, "vf %d must be smaller than %d\n", vf, max_vf);

 return qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_VFS) + (vf % max_vf);
}

u16 qed_get_cm_pq_idx_ofld_mtc(struct qed_hwfn *p_hwfn, u8 tc)
{
 u16 first_ofld_pq, pq_offset;

 first_ofld_pq = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
 pq_offset = (tc < qed_init_qm_get_num_mtc_tcs(p_hwfn)) ?
      tc : PQ_INIT_DEFAULT_TC;

 return first_ofld_pq + pq_offset;
}

u16 qed_get_cm_pq_idx_llt_mtc(struct qed_hwfn *p_hwfn, u8 tc)
{
 u16 first_llt_pq, pq_offset;

 first_llt_pq = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_LLT);
 pq_offset = (tc < qed_init_qm_get_num_mtc_tcs(p_hwfn)) ?
      tc : PQ_INIT_DEFAULT_TC;

 return first_llt_pq + pq_offset;
}

/* Functions for creating specific types of pqs */
static void qed_init_qm_lb_pq(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;

 if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_LB))
  return;

 qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_LB, qm_info->num_pqs);
 qed_init_qm_pq(p_hwfn, qm_info, PURE_LB_TC, PQ_INIT_SHARE_VPORT);
}

static void qed_init_qm_ooo_pq(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;

 if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_OOO))
  return;

 qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_OOO, qm_info->num_pqs);
 qed_init_qm_pq(p_hwfn, qm_info, qm_info->ooo_tc, PQ_INIT_SHARE_VPORT);
}

static void qed_init_qm_pure_ack_pq(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;

 if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_ACK))
  return;

 qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_ACK, qm_info->num_pqs);
 qed_init_qm_pq(p_hwfn, qm_info, qed_get_offload_tc(p_hwfn),
         PQ_INIT_SHARE_VPORT);
}

static void qed_init_qm_mtc_pqs(struct qed_hwfn *p_hwfn)
{
 u8 num_tcs = qed_init_qm_get_num_mtc_tcs(p_hwfn);
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;
 u8 tc;

 /* override pq's TC if offload TC is set */
 for (tc = 0; tc < num_tcs; tc++)
  qed_init_qm_pq(p_hwfn, qm_info,
          qed_is_offload_tc_set(p_hwfn) ?
          p_hwfn->hw_info.offload_tc : tc,
          PQ_INIT_SHARE_VPORT);
}

static void qed_init_qm_offload_pq(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;

 if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_OFLD))
  return;

 qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_OFLD, qm_info->num_pqs);
 qed_init_qm_mtc_pqs(p_hwfn);
}

static void qed_init_qm_low_latency_pq(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;

 if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_LLT))
  return;

 qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_LLT, qm_info->num_pqs);
 qed_init_qm_mtc_pqs(p_hwfn);
}

static void qed_init_qm_mcos_pqs(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;
 u8 tc_idx;

 if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_MCOS))
  return;

 qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_MCOS, qm_info->num_pqs);
 for (tc_idx = 0; tc_idx < qed_init_qm_get_num_tcs(p_hwfn); tc_idx++)
  qed_init_qm_pq(p_hwfn, qm_info, tc_idx, PQ_INIT_SHARE_VPORT);
}

static void qed_init_qm_vf_pqs(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;
 u16 vf_idx, num_vfs = qed_init_qm_get_num_vfs(p_hwfn);

 if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_VFS))
  return;

 qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_VFS, qm_info->num_pqs);
 qm_info->num_vf_pqs = num_vfs;
 for (vf_idx = 0; vf_idx < num_vfs; vf_idx++)
  qed_init_qm_pq(p_hwfn,
          qm_info, PQ_INIT_DEFAULT_TC, PQ_INIT_VF_RL);
}

static void qed_init_qm_rl_pqs(struct qed_hwfn *p_hwfn)
{
 u16 pf_rls_idx, num_pf_rls = qed_init_qm_get_num_pf_rls(p_hwfn);
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;

 if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_RLS))
  return;

 qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_RLS, qm_info->num_pqs);
 for (pf_rls_idx = 0; pf_rls_idx < num_pf_rls; pf_rls_idx++)
  qed_init_qm_pq(p_hwfn, qm_info, qed_get_offload_tc(p_hwfn),
          PQ_INIT_PF_RL);
}

static void qed_init_qm_pq_params(struct qed_hwfn *p_hwfn)
{
 /* rate limited pqs, must come first (FW assumption) */
 qed_init_qm_rl_pqs(p_hwfn);

 /* pqs for multi cos */
 qed_init_qm_mcos_pqs(p_hwfn);

 /* pure loopback pq */
 qed_init_qm_lb_pq(p_hwfn);

 /* out of order pq */
 qed_init_qm_ooo_pq(p_hwfn);

 /* pure ack pq */
 qed_init_qm_pure_ack_pq(p_hwfn);

 /* pq for offloaded protocol */
 qed_init_qm_offload_pq(p_hwfn);

 /* low latency pq */
 qed_init_qm_low_latency_pq(p_hwfn);

 /* done sharing vports */
 qed_init_qm_advance_vport(p_hwfn);

 /* pqs for vfs */
 qed_init_qm_vf_pqs(p_hwfn);
}

/* compare values of getters against resources amounts */
static int qed_init_qm_sanity(struct qed_hwfn *p_hwfn)
{
 if (qed_init_qm_get_num_vports(p_hwfn) > RESC_NUM(p_hwfn, QED_VPORT)) {
  DP_ERR(p_hwfn, "requested amount of vports exceeds resource\n");
  return -EINVAL;
 }

 if (qed_init_qm_get_num_pqs(p_hwfn) <= RESC_NUM(p_hwfn, QED_PQ))
  return 0;

 if (QED_IS_ROCE_PERSONALITY(p_hwfn)) {
  p_hwfn->hw_info.multi_tc_roce_en = false;
  DP_NOTICE(p_hwfn,
     "multi-tc roce was disabled to reduce requested amount of pqs\n");
  if (qed_init_qm_get_num_pqs(p_hwfn) <= RESC_NUM(p_hwfn, QED_PQ))
   return 0;
 }

 DP_ERR(p_hwfn, "requested amount of pqs exceeds resource\n");
 return -EINVAL;
}

static void qed_dp_init_qm_params(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;
 struct init_qm_vport_params *vport;
 struct init_qm_port_params *port;
 struct init_qm_pq_params *pq;
 int i, tc;

 /* top level params */
 DP_VERBOSE(p_hwfn,
     NETIF_MSG_HW,
     "qm init top level params: start_pq %d, start_vport %d, pure_lb_pq %d, offload_pq %d, llt_pq %d, pure_ack_pq %d\n",
     qm_info->start_pq,
     qm_info->start_vport,
     qm_info->pure_lb_pq,
     qm_info->first_ofld_pq,
     qm_info->first_llt_pq,
     qm_info->pure_ack_pq);
 DP_VERBOSE(p_hwfn,
     NETIF_MSG_HW,
     "ooo_pq %d, first_vf_pq %d, num_pqs %d, num_vf_pqs %d, num_vports %d, max_phys_tcs_per_port %d\n",
     qm_info->ooo_pq,
     qm_info->first_vf_pq,
     qm_info->num_pqs,
     qm_info->num_vf_pqs,
     qm_info->num_vports, qm_info->max_phys_tcs_per_port);
 DP_VERBOSE(p_hwfn,
     NETIF_MSG_HW,
     "pf_rl_en %d, pf_wfq_en %d, vport_rl_en %d, vport_wfq_en %d, pf_wfq %d, pf_rl %d, num_pf_rls %d, pq_flags %x\n",
     qm_info->pf_rl_en,
     qm_info->pf_wfq_en,
     qm_info->vport_rl_en,
     qm_info->vport_wfq_en,
     qm_info->pf_wfq,
     qm_info->pf_rl,
     qm_info->num_pf_rls, qed_get_pq_flags(p_hwfn));

 /* port table */
 for (i = 0; i < p_hwfn->cdev->num_ports_in_engine; i++) {
  port = &(qm_info->qm_port_params[i]);
  DP_VERBOSE(p_hwfn,
      NETIF_MSG_HW,
      "port idx %d, active %d, active_phys_tcs %d, num_pbf_cmd_lines %d, num_btb_blocks %d, reserved %d\n",
      i,
      port->active,
      port->active_phys_tcs,
      port->num_pbf_cmd_lines,
      port->num_btb_blocks, port->reserved);
 }

 /* vport table */
 for (i = 0; i < qm_info->num_vports; i++) {
  vport = &(qm_info->qm_vport_params[i]);
  DP_VERBOSE(p_hwfn,
      NETIF_MSG_HW,
      "vport idx %d, wfq %d, first_tx_pq_id [ ",
      qm_info->start_vport + i, vport->wfq);
  for (tc = 0; tc < NUM_OF_TCS; tc++)
   DP_VERBOSE(p_hwfn,
       NETIF_MSG_HW,
       "%d ", vport->first_tx_pq_id[tc]);
  DP_VERBOSE(p_hwfn, NETIF_MSG_HW, "]\n");
 }

 /* pq table */
 for (i = 0; i < qm_info->num_pqs; i++) {
  pq = &(qm_info->qm_pq_params[i]);
  DP_VERBOSE(p_hwfn,
      NETIF_MSG_HW,
      "pq idx %d, port %d, vport_id %d, tc %d, wrr_grp %d, rl_valid %d rl_id %d\n",
      qm_info->start_pq + i,
      pq->port_id,
      pq->vport_id,
      pq->tc_id, pq->wrr_group, pq->rl_valid, pq->rl_id);
 }
}

static void qed_init_qm_info(struct qed_hwfn *p_hwfn)
{
 /* reset params required for init run */
 qed_init_qm_reset_params(p_hwfn);

 /* init QM top level params */
 qed_init_qm_params(p_hwfn);

 /* init QM port params */
 qed_init_qm_port_params(p_hwfn);

 /* init QM vport params */
 qed_init_qm_vport_params(p_hwfn);

 /* init QM physical queue params */
 qed_init_qm_pq_params(p_hwfn);

 /* display all that init */
 qed_dp_init_qm_params(p_hwfn);
}

/* This function reconfigures the QM pf on the fly.
 * For this purpose we:
 * 1. reconfigure the QM database
 * 2. set new values to runtime array
 * 3. send an sdm_qm_cmd through the rbc interface to stop the QM
 * 4. activate init tool in QM_PF stage
 * 5. send an sdm_qm_cmd through rbc interface to release the QM
 */
int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;
 bool b_rc;
 int rc;

 /* initialize qed's qm data structure */
 qed_init_qm_info(p_hwfn);

 /* stop PF's qm queues */
 spin_lock_bh(&qm_lock);
 b_rc = qed_send_qm_stop_cmd(p_hwfn, p_ptt, false, true,
        qm_info->start_pq, qm_info->num_pqs);
 spin_unlock_bh(&qm_lock);
 if (!b_rc)
  return -EINVAL;

 /* prepare QM portion of runtime array */
 qed_qm_init_pf(p_hwfn, p_ptt, false);

 /* activate init tool on runtime array */
 rc = qed_init_run(p_hwfn, p_ptt, PHASE_QM_PF, p_hwfn->rel_pf_id,
     p_hwfn->hw_info.hw_mode);
 if (rc)
  return rc;

 /* start PF's qm queues */
 spin_lock_bh(&qm_lock);
 b_rc = qed_send_qm_stop_cmd(p_hwfn, p_ptt, true, true,
        qm_info->start_pq, qm_info->num_pqs);
 spin_unlock_bh(&qm_lock);
 if (!b_rc)
  return -EINVAL;

 return 0;
}

static int qed_alloc_qm_data(struct qed_hwfn *p_hwfn)
{
 struct qed_qm_info *qm_info = &p_hwfn->qm_info;
 int rc;

 rc = qed_init_qm_sanity(p_hwfn);
 if (rc)
  goto alloc_err;

 qm_info->qm_pq_params = kcalloc(qed_init_qm_get_num_pqs(p_hwfn),
     sizeof(*qm_info->qm_pq_params),
     GFP_KERNEL);
 if (!qm_info->qm_pq_params)
  goto alloc_err;

 qm_info->qm_vport_params = kcalloc(qed_init_qm_get_num_vports(p_hwfn),
        sizeof(*qm_info->qm_vport_params),
        GFP_KERNEL);
 if (!qm_info->qm_vport_params)
  goto alloc_err;

 qm_info->qm_port_params = kcalloc(p_hwfn->cdev->num_ports_in_engine,
       sizeof(*qm_info->qm_port_params),
       GFP_KERNEL);
 if (!qm_info->qm_port_params)
  goto alloc_err;

 qm_info->wfq_data = kcalloc(qed_init_qm_get_num_vports(p_hwfn),
        sizeof(*qm_info->wfq_data),
        GFP_KERNEL);
 if (!qm_info->wfq_data)
  goto alloc_err;

 return 0;

alloc_err:
 DP_NOTICE(p_hwfn, "Failed to allocate memory for QM params\n");
 qed_qm_info_free(p_hwfn);
 return -ENOMEM;
}

int qed_resc_alloc(struct qed_dev *cdev)
{
 u32 rdma_tasks, excess_tasks;
 u32 line_count;
 int i, rc = 0;

 if (IS_VF(cdev)) {
  for_each_hwfn(cdev, i) {
   rc = qed_l2_alloc(&cdev->hwfns[i]);
   if (rc)
    return rc;
  }
  return rc;
 }

 cdev->fw_data = kzalloc(sizeof(*cdev->fw_data), GFP_KERNEL);
 if (!cdev->fw_data)
  return -ENOMEM;

 for_each_hwfn(cdev, i) {
  struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
  u32 n_eqes, num_cons;

  /* Initialize the doorbell recovery mechanism */
  rc = qed_db_recovery_setup(p_hwfn);
  if (rc)
   goto alloc_err;

  /* First allocate the context manager structure */
  rc = qed_cxt_mngr_alloc(p_hwfn);
  if (rc)
   goto alloc_err;

  /* Set the HW cid/tid numbers (in the contest manager)
 * Must be done prior to any further computations.
 */
  rc = qed_cxt_set_pf_params(p_hwfn, RDMA_MAX_TIDS);
  if (rc)
   goto alloc_err;

  rc = qed_alloc_qm_data(p_hwfn);
  if (rc)
   goto alloc_err;

  /* init qm info */
  qed_init_qm_info(p_hwfn);

  /* Compute the ILT client partition */
  rc = qed_cxt_cfg_ilt_compute(p_hwfn, &line_count);
  if (rc) {
   DP_NOTICE(p_hwfn,
      "too many ILT lines; re-computing with less lines\n");
   /* In case there are not enough ILT lines we reduce the
 * number of RDMA tasks and re-compute.
 */
   excess_tasks =
       qed_cxt_cfg_ilt_compute_excess(p_hwfn, line_count);
   if (!excess_tasks)
    goto alloc_err;

   rdma_tasks = RDMA_MAX_TIDS - excess_tasks;
   rc = qed_cxt_set_pf_params(p_hwfn, rdma_tasks);
   if (rc)
    goto alloc_err;

   rc = qed_cxt_cfg_ilt_compute(p_hwfn, &line_count);
   if (rc) {
    DP_ERR(p_hwfn,
           "failed ILT compute. Requested too many lines: %u\n",
           line_count);

    goto alloc_err;
   }
  }

  /* CID map / ILT shadow table / T2
 * The table sizes are determined by the computations above
 */
  rc = qed_cxt_tables_alloc(p_hwfn);
  if (rc)
   goto alloc_err;

  /* SPQ, must follow ILT because initializes SPQ context */
  rc = qed_spq_alloc(p_hwfn);
  if (rc)
   goto alloc_err;

  /* SP status block allocation */
  p_hwfn->p_dpc_ptt = qed_get_reserved_ptt(p_hwfn,
        RESERVED_PTT_DPC);

  rc = qed_int_alloc(p_hwfn, p_hwfn->p_main_ptt);
  if (rc)
   goto alloc_err;

  rc = qed_iov_alloc(p_hwfn);
  if (rc)
   goto alloc_err;

  /* EQ */
  n_eqes = qed_chain_get_capacity(&p_hwfn->p_spq->chain);
  if (QED_IS_RDMA_PERSONALITY(p_hwfn)) {
   u32 n_srq = qed_cxt_get_total_srq_count(p_hwfn);
   enum protocol_type rdma_proto;

   if (QED_IS_ROCE_PERSONALITY(p_hwfn))
    rdma_proto = PROTOCOLID_ROCE;
   else
    rdma_proto = PROTOCOLID_IWARP;

   num_cons = qed_cxt_get_proto_cid_count(p_hwfn,
              rdma_proto,
              NULL) * 2;
   /* EQ should be able to get events from all SRQ's
 * at the same time
 */
   n_eqes += num_cons + 2 * MAX_NUM_VFS_BB + n_srq;
  } else if (p_hwfn->hw_info.personality == QED_PCI_ISCSI ||
      p_hwfn->hw_info.personality == QED_PCI_NVMETCP) {
   num_cons =
       qed_cxt_get_proto_cid_count(p_hwfn,
       PROTOCOLID_TCP_ULP,
       NULL);
   n_eqes += 2 * num_cons;
  }

  if (n_eqes > 0xFFFF) {
   DP_ERR(p_hwfn,
          "Cannot allocate 0x%x EQ elements. The maximum of a u16 chain is 0x%x\n",
          n_eqes, 0xFFFF);
   goto alloc_no_mem;
  }

  rc = qed_eq_alloc(p_hwfn, (u16)n_eqes);
  if (rc)
   goto alloc_err;

  rc = qed_consq_alloc(p_hwfn);
  if (rc)
   goto alloc_err;

  rc = qed_l2_alloc(p_hwfn);
  if (rc)
   goto alloc_err;

#ifdef CONFIG_QED_LL2
  if (p_hwfn->using_ll2) {
   rc = qed_ll2_alloc(p_hwfn);
   if (rc)
    goto alloc_err;
  }
#endif

  if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
   rc = qed_fcoe_alloc(p_hwfn);
   if (rc)
    goto alloc_err;
  }

  if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
   rc = qed_iscsi_alloc(p_hwfn);
   if (rc)
    goto alloc_err;
   rc = qed_ooo_alloc(p_hwfn);
   if (rc)
    goto alloc_err;
  }

  if (p_hwfn->hw_info.personality == QED_PCI_NVMETCP) {
   rc = qed_nvmetcp_alloc(p_hwfn);
   if (rc)
    goto alloc_err;
   rc = qed_ooo_alloc(p_hwfn);
   if (rc)
    goto alloc_err;
  }

  if (QED_IS_RDMA_PERSONALITY(p_hwfn)) {
   rc = qed_rdma_info_alloc(p_hwfn);
   if (rc)
    goto alloc_err;
  }

  /* DMA info initialization */
  rc = qed_dmae_info_alloc(p_hwfn);
  if (rc)
   goto alloc_err;

  /* DCBX initialization */
  rc = qed_dcbx_info_alloc(p_hwfn);
  if (rc)
   goto alloc_err;

  rc = qed_dbg_alloc_user_data(p_hwfn, &p_hwfn->dbg_user_info);
  if (rc)
   goto alloc_err;
 }

 rc = qed_llh_alloc(cdev);
 if (rc) {
  DP_NOTICE(cdev,
     "Failed to allocate memory for the llh_info structure\n");
  goto alloc_err;
 }

 cdev->reset_stats = kzalloc(sizeof(*cdev->reset_stats), GFP_KERNEL);
 if (!cdev->reset_stats)
  goto alloc_no_mem;

 return 0;

alloc_no_mem:
 rc = -ENOMEM;
alloc_err:
 qed_resc_free(cdev);
 return rc;
}

static int qed_fw_err_handler(struct qed_hwfn *p_hwfn,
         u8 opcode,
         u16 echo,
         union event_ring_data *data, u8 fw_return_code)
{
 if (fw_return_code != COMMON_ERR_CODE_ERROR)
  goto eqe_unexpected;

 if (data->err_data.recovery_scope == ERR_SCOPE_FUNC &&
     le16_to_cpu(data->err_data.entity_id) >= MAX_NUM_PFS) {
  qed_sriov_vfpf_malicious(p_hwfn, &data->err_data);
  return 0;
 }

eqe_unexpected:
 DP_ERR(p_hwfn,
        "Skipping unexpected eqe 0x%02x, FW return code 0x%x, echo 0x%x\n",
        opcode, fw_return_code, echo);
 return -EINVAL;
}

static int qed_common_eqe_event(struct qed_hwfn *p_hwfn,
    u8 opcode,
    __le16 echo,
    union event_ring_data *data,
    u8 fw_return_code)
{
 switch (opcode) {
 case COMMON_EVENT_VF_PF_CHANNEL:
 case COMMON_EVENT_VF_FLR:
  return qed_sriov_eqe_event(p_hwfn, opcode, echo, data,
        fw_return_code);
 case COMMON_EVENT_FW_ERROR:
  return qed_fw_err_handler(p_hwfn, opcode,
       le16_to_cpu(echo), data,
       fw_return_code);
 default:
  DP_INFO(p_hwfn->cdev, "Unknown eqe event 0x%02x, echo 0x%x\n",
   opcode, echo);
  return -EINVAL;
 }
}

void qed_resc_setup(struct qed_dev *cdev)
{
 int i;

 if (IS_VF(cdev)) {
  for_each_hwfn(cdev, i)
   qed_l2_setup(&cdev->hwfns[i]);
  return;
 }

 for_each_hwfn(cdev, i) {
  struct qed_hwfn *p_hwfn = &cdev->hwfns[i];

  qed_cxt_mngr_setup(p_hwfn);
  qed_spq_setup(p_hwfn);
  qed_eq_setup(p_hwfn);
  qed_consq_setup(p_hwfn);

  /* Read shadow of current MFW mailbox */
  qed_mcp_read_mb(p_hwfn, p_hwfn->p_main_ptt);
  memcpy(p_hwfn->mcp_info->mfw_mb_shadow,
         p_hwfn->mcp_info->mfw_mb_cur,
         p_hwfn->mcp_info->mfw_mb_length);

  qed_int_setup(p_hwfn, p_hwfn->p_main_ptt);

  qed_l2_setup(p_hwfn);
  qed_iov_setup(p_hwfn);
  qed_spq_register_async_cb(p_hwfn, PROTOCOLID_COMMON,
       qed_common_eqe_event);
#ifdef CONFIG_QED_LL2
  if (p_hwfn->using_ll2)
   qed_ll2_setup(p_hwfn);
#endif
  if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
   qed_fcoe_setup(p_hwfn);

  if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
   qed_iscsi_setup(p_hwfn);
   qed_ooo_setup(p_hwfn);
  }

  if (p_hwfn->hw_info.personality == QED_PCI_NVMETCP) {
   qed_nvmetcp_setup(p_hwfn);
   qed_ooo_setup(p_hwfn);
  }
 }
}

#define FINAL_CLEANUP_POLL_CNT          (100)
#define FINAL_CLEANUP_POLL_TIME         (10)
int qed_final_cleanup(struct qed_hwfn *p_hwfn,
        struct qed_ptt *p_ptt, u16 id, bool is_vf)
{
 u32 command = 0, addr, count = FINAL_CLEANUP_POLL_CNT;
 int rc = -EBUSY;

 addr = GET_GTT_REG_ADDR(GTT_BAR0_MAP_REG_USDM_RAM,
    USTORM_FLR_FINAL_ACK, p_hwfn->rel_pf_id);
 if (is_vf)
  id += 0x10;

 command |= X_FINAL_CLEANUP_AGG_INT <<
  SDM_AGG_INT_COMP_PARAMS_AGG_INT_INDEX_SHIFT;
 command |= 1 << SDM_AGG_INT_COMP_PARAMS_AGG_VECTOR_ENABLE_SHIFT;
 command |= id << SDM_AGG_INT_COMP_PARAMS_AGG_VECTOR_BIT_SHIFT;
 command |= SDM_COMP_TYPE_AGG_INT << SDM_OP_GEN_COMP_TYPE_SHIFT;

 /* Make sure notification is not set before initiating final cleanup */
 if (REG_RD(p_hwfn, addr)) {
  DP_NOTICE(p_hwfn,
     "Unexpected; Found final cleanup notification before initiating final cleanup\n");
  REG_WR(p_hwfn, addr, 0);
 }

 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
     "Sending final cleanup for PFVF[%d] [Command %08x]\n",
     id, command);

 qed_wr(p_hwfn, p_ptt, XSDM_REG_OPERATION_GEN, command);

 /* Poll until completion */
 while (!REG_RD(p_hwfn, addr) && count--)
  msleep(FINAL_CLEANUP_POLL_TIME);

 if (REG_RD(p_hwfn, addr))
  rc = 0;
 else
  DP_NOTICE(p_hwfn,
     "Failed to receive FW final cleanup notification\n");

 /* Cleanup afterwards */
 REG_WR(p_hwfn, addr, 0);

 return rc;
}

static int qed_calc_hw_mode(struct qed_hwfn *p_hwfn)
{
 int hw_mode = 0;

 if (QED_IS_BB_B0(p_hwfn->cdev)) {
  hw_mode |= 1 << MODE_BB;
 } else if (QED_IS_AH(p_hwfn->cdev)) {
  hw_mode |= 1 << MODE_K2;
 } else {
  DP_NOTICE(p_hwfn, "Unknown chip type %#x\n",
     p_hwfn->cdev->type);
  return -EINVAL;
 }

 switch (p_hwfn->cdev->num_ports_in_engine) {
 case 1:
  hw_mode |= 1 << MODE_PORTS_PER_ENG_1;
  break;
 case 2:
  hw_mode |= 1 << MODE_PORTS_PER_ENG_2;
  break;
 case 4:
  hw_mode |= 1 << MODE_PORTS_PER_ENG_4;
  break;
 default:
  DP_NOTICE(p_hwfn, "num_ports_in_engine = %d not supported\n",
     p_hwfn->cdev->num_ports_in_engine);
  return -EINVAL;
 }

--> --------------------

--> maximum size reached

--> --------------------