- 根目录:
- drivers
- net
- ethernet
- qlogic
- qlcnic
- qlcnic_dcb.c
/*
* QLogic qlcnic NIC Driver
* Copyright (c) 2009-2013 QLogic Corporation
*
* See LICENSE.qlcnic for copyright and licensing details.
*/
#include <linux/types.h>
#include "qlcnic.h"
#define QLC_DCB_NUM_PARAM 3
#define QLC_DCB_LOCAL_IDX 0
#define QLC_DCB_OPER_IDX 1
#define QLC_DCB_PEER_IDX 2
#define QLC_DCB_GET_MAP(V) (1 << V)
#define QLC_DCB_FW_VER 0x2
#define QLC_DCB_MAX_TC 0x8
#define QLC_DCB_MAX_APP 0x8
#define QLC_DCB_MAX_PRIO QLC_DCB_MAX_TC
#define QLC_DCB_MAX_PG QLC_DCB_MAX_TC
#define QLC_DCB_TSA_SUPPORT(V) (V & 0x1)
#define QLC_DCB_ETS_SUPPORT(V) ((V >> 1) & 0x1)
#define QLC_DCB_VERSION_SUPPORT(V) ((V >> 2) & 0xf)
#define QLC_DCB_MAX_NUM_TC(V) ((V >> 20) & 0xf)
#define QLC_DCB_MAX_NUM_ETS_TC(V) ((V >> 24) & 0xf)
#define QLC_DCB_MAX_NUM_PFC_TC(V) ((V >> 28) & 0xf)
#define QLC_DCB_GET_TC_PRIO(X, P) ((X >> (P * 3)) & 0x7)
#define QLC_DCB_GET_PGID_PRIO(X, P) ((X >> (P * 8)) & 0xff)
#define QLC_DCB_GET_BWPER_PG(X, P) ((X >> (P * 8)) & 0xff)
#define QLC_DCB_GET_TSA_PG(X, P) ((X >> (P * 8)) & 0xff)
#define QLC_DCB_GET_PFC_PRIO(X, P) (((X >> 24) >> P) & 0x1)
#define QLC_DCB_GET_PROTO_ID_APP(X) ((X >> 8) & 0xffff)
#define QLC_DCB_GET_SELECTOR_APP(X) (X & 0xff)
#define QLC_DCB_LOCAL_PARAM_FWID 0x3
#define QLC_DCB_OPER_PARAM_FWID 0x1
#define QLC_DCB_PEER_PARAM_FWID 0x2
#define QLC_83XX_DCB_GET_NUMAPP(X) ((X >> 2) & 0xf)
#define QLC_83XX_DCB_TSA_VALID(X) (X & 0x1)
#define QLC_83XX_DCB_PFC_VALID(X) ((X >> 1) & 0x1)
#define QLC_83XX_DCB_GET_PRIOMAP_APP(X) (X >> 24)
#define QLC_82XX_DCB_GET_NUMAPP(X) ((X >> 12) & 0xf)
#define QLC_82XX_DCB_TSA_VALID(X) ((X >> 4) & 0x1)
#define QLC_82XX_DCB_PFC_VALID(X) ((X >> 5) & 0x1)
#define QLC_82XX_DCB_GET_PRIOVAL_APP(X) ((X >> 24) & 0x7)
#define QLC_82XX_DCB_GET_PRIOMAP_APP(X) (1 << X)
#define QLC_82XX_DCB_PRIO_TC_MAP (0x76543210)
static const struct dcbnl_rtnl_ops qlcnic_dcbnl_ops;
static void qlcnic_dcb_aen_work(struct work_struct *);
static void qlcnic_dcb_data_cee_param_map(struct qlcnic_adapter *);
static inline void __qlcnic_init_dcbnl_ops(struct qlcnic_dcb *);
static void __qlcnic_dcb_free(struct qlcnic_dcb *);
static int __qlcnic_dcb_attach(struct qlcnic_dcb *);
static int __qlcnic_dcb_query_hw_capability(struct qlcnic_dcb *, char *);
static void __qlcnic_dcb_get_info(struct qlcnic_dcb *);
static int qlcnic_82xx_dcb_get_hw_capability(struct qlcnic_dcb *);
static int qlcnic_82xx_dcb_query_cee_param(struct qlcnic_dcb *, char *, u8);
static int qlcnic_82xx_dcb_get_cee_cfg(struct qlcnic_dcb *);
static void qlcnic_82xx_dcb_aen_handler(struct qlcnic_dcb *, void *);
static int qlcnic_83xx_dcb_get_hw_capability(struct qlcnic_dcb *);
static int qlcnic_83xx_dcb_query_cee_param(struct qlcnic_dcb *, char *, u8);
static int qlcnic_83xx_dcb_get_cee_cfg(struct qlcnic_dcb *);
static void qlcnic_83xx_dcb_aen_handler(struct qlcnic_dcb *, void *);
struct qlcnic_dcb_capability {
bool tsa_capability;
bool ets_capability;
u8 max_num_tc;
u8 max_ets_tc;
u8 max_pfc_tc;
u8 dcb_capability;
};
struct qlcnic_dcb_param {
u32 hdr_prio_pfc_map[2];
u32 prio_pg_map[2];
u32 pg_bw_map[2];
u32 pg_tsa_map[2];
u32 app[QLC_DCB_MAX_APP];
};
struct qlcnic_dcb_mbx_params {
/* 1st local, 2nd operational 3rd remote */
struct qlcnic_dcb_param type[3];
u32 prio_tc_map;
};
struct qlcnic_82xx_dcb_param_mbx_le {
__le32 hdr_prio_pfc_map[2];
__le32 prio_pg_map[2];
__le32 pg_bw_map[2];
__le32 pg_tsa_map[2];
__le32 app[QLC_DCB_MAX_APP];
};
enum qlcnic_dcb_selector {
QLC_SELECTOR_DEF = 0x0,
QLC_SELECTOR_ETHER,
QLC_SELECTOR_TCP,
QLC_SELECTOR_UDP,
};
enum qlcnic_dcb_prio_type {
QLC_PRIO_NONE = 0,
QLC_PRIO_GROUP,
QLC_PRIO_LINK,
};
enum qlcnic_dcb_pfc_type {
QLC_PFC_DISABLED = 0,
QLC_PFC_FULL,
QLC_PFC_TX,
QLC_PFC_RX
};
struct qlcnic_dcb_prio_cfg {
bool valid;
enum qlcnic_dcb_pfc_type pfc_type;
};
struct qlcnic_dcb_pg_cfg {
bool valid;
u8 total_bw_percent; /* of Link/ port BW */
u8 prio_count;
u8 tsa_type;
};
struct qlcnic_dcb_tc_cfg {
bool valid;
struct qlcnic_dcb_prio_cfg prio_cfg[QLC_DCB_MAX_PRIO];
enum qlcnic_dcb_prio_type prio_type; /* always prio_link */
u8 link_percent; /* % of link bandwidth */
u8 bwg_percent; /* % of BWG's bandwidth */
u8 up_tc_map;
u8 pgid;
};
struct qlcnic_dcb_app {
bool valid;
enum qlcnic_dcb_selector selector;
u16 protocol;
u8 priority;
};
struct qlcnic_dcb_cee {
struct qlcnic_dcb_tc_cfg tc_cfg[QLC_DCB_MAX_TC];
struct qlcnic_dcb_pg_cfg pg_cfg[QLC_DCB_MAX_PG];
struct qlcnic_dcb_app app[QLC_DCB_MAX_APP];
bool tc_param_valid;
bool pfc_mode_enable;
};
struct qlcnic_dcb_cfg {
/* 0 - local, 1 - operational, 2 - remote */
struct qlcnic_dcb_cee type[QLC_DCB_NUM_PARAM];
struct qlcnic_dcb_capability capability;
u32 version;
};
static struct qlcnic_dcb_ops qlcnic_83xx_dcb_ops = {
.init_dcbnl_ops = __qlcnic_init_dcbnl_ops,
.free = __qlcnic_dcb_free,
.attach = __qlcnic_dcb_attach,
.query_hw_capability = __qlcnic_dcb_query_hw_capability,
.get_info = __qlcnic_dcb_get_info,
.get_hw_capability = qlcnic_83xx_dcb_get_hw_capability,
.query_cee_param = qlcnic_83xx_dcb_query_cee_param,
.get_cee_cfg = qlcnic_83xx_dcb_get_cee_cfg,
.aen_handler = qlcnic_83xx_dcb_aen_handler,
};
static struct qlcnic_dcb_ops qlcnic_82xx_dcb_ops = {
.init_dcbnl_ops = __qlcnic_init_dcbnl_ops,
.free = __qlcnic_dcb_free,
.attach = __qlcnic_dcb_attach,
.query_hw_capability = __qlcnic_dcb_query_hw_capability,
.get_info = __qlcnic_dcb_get_info,
.get_hw_capability = qlcnic_82xx_dcb_get_hw_capability,
.query_cee_param = qlcnic_82xx_dcb_query_cee_param,
.get_cee_cfg = qlcnic_82xx_dcb_get_cee_cfg,
.aen_handler = qlcnic_82xx_dcb_aen_handler,
};
static u8 qlcnic_dcb_get_num_app(struct qlcnic_adapter *adapter, u32 val)
{
if (qlcnic_82xx_check(adapter))
return QLC_82XX_DCB_GET_NUMAPP(val);
else
return QLC_83XX_DCB_GET_NUMAPP(val);
}
static inline u8 qlcnic_dcb_pfc_hdr_valid(struct qlcnic_adapter *adapter,
u32 val)
{
if (qlcnic_82xx_check(adapter))
return QLC_82XX_DCB_PFC_VALID(val);
else
return QLC_83XX_DCB_PFC_VALID(val);
}
static inline u8 qlcnic_dcb_tsa_hdr_valid(struct qlcnic_adapter *adapter,
u32 val)
{
if (qlcnic_82xx_check(adapter))
return QLC_82XX_DCB_TSA_VALID(val);
else
return QLC_83XX_DCB_TSA_VALID(val);
}
static inline u8 qlcnic_dcb_get_prio_map_app(struct qlcnic_adapter *adapter,
u32 val)
{
if (qlcnic_82xx_check(adapter))
return QLC_82XX_DCB_GET_PRIOMAP_APP(val);
else
return QLC_83XX_DCB_GET_PRIOMAP_APP(val);
}
static int qlcnic_dcb_prio_count(u8 up_tc_map)
{
int j;
for (j = 0; j < QLC_DCB_MAX_TC; j++)
if (up_tc_map & QLC_DCB_GET_MAP(j))
break;
return j;
}
static inline void __qlcnic_init_dcbnl_ops(struct qlcnic_dcb *dcb)
{
if (test_bit(QLCNIC_DCB_STATE, &dcb->state))
dcb->adapter->netdev->dcbnl_ops = &qlcnic_dcbnl_ops;
}
static void qlcnic_set_dcb_ops(struct qlcnic_adapter *adapter)
{
if (qlcnic_82xx_check(adapter))
adapter->dcb->ops = &qlcnic_82xx_dcb_ops;
else if (qlcnic_83xx_check(adapter))
adapter->dcb->ops = &qlcnic_83xx_dcb_ops;
}
int qlcnic_register_dcb(struct qlcnic_adapter *adapter)
{
struct qlcnic_dcb *dcb;
if (qlcnic_sriov_vf_check(adapter))
return 0;
dcb = kzalloc(sizeof(struct qlcnic_dcb), GFP_ATOMIC);
if (!dcb)
return -ENOMEM;
adapter->dcb = dcb;
dcb->adapter = adapter;
qlcnic_set_dcb_ops(adapter);
dcb->state = 0;
return 0;
}
static void __qlcnic_dcb_free(struct qlcnic_dcb *dcb)
{
struct qlcnic_adapter *adapter;
if (!dcb)
return;
adapter = dcb->adapter;
while (test_bit(QLCNIC_DCB_AEN_MODE, &dcb->state))
usleep_range(10000, 11000);
cancel_delayed_work_sync(&dcb->aen_work);
if (dcb->wq) {
destroy_workqueue(dcb->wq);
dcb->wq = NULL;
}
kfree(dcb->cfg);
dcb->cfg = NULL;
kfree(dcb->param);
dcb->param = NULL;
kfree(dcb);
adapter->dcb = NULL;
}
static void __qlcnic_dcb_get_info(struct qlcnic_dcb *dcb)
{
qlcnic_dcb_get_hw_capability(dcb);
qlcnic_dcb_get_cee_cfg(dcb);
}
static int __qlcnic_dcb_attach(struct qlcnic_dcb *dcb)
{
int err = 0;
INIT_DELAYED_WORK(&dcb->aen_work, qlcnic_dcb_aen_work);
dcb->wq = create_singlethread_workqueue("qlcnic-dcb");
if (!dcb->wq) {
dev_err(&dcb->adapter->pdev->dev,
"DCB workqueue allocation failed. DCB will be disabled\n");
return -1;
}
dcb->cfg = kzalloc(sizeof(struct qlcnic_dcb_cfg), GFP_ATOMIC);
if (!dcb->cfg) {
err = -ENOMEM;
goto out_free_wq;
}
dcb->param = kzalloc(sizeof(struct qlcnic_dcb_mbx_params), GFP_ATOMIC);
if (!dcb->param) {
err = -ENOMEM;
goto out_free_cfg;
}
qlcnic_dcb_get_info(dcb);
return 0;
out_free_cfg:
kfree(dcb->cfg);
dcb->cfg = NULL;
out_free_wq:
destroy_workqueue(dcb->wq);
dcb->wq = NULL;
return err;
}
static int __qlcnic_dcb_query_hw_capability(struct qlcnic_dcb *dcb, char *buf)
{
struct qlcnic_adapter *adapter = dcb->adapter;
struct qlcnic_cmd_args cmd;
u32 mbx_out;
int err;
err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DCB_QUERY_CAP);
if (err)
return err;
err = qlcnic_issue_cmd(adapter, &cmd);
if (err) {
dev_err(&adapter->pdev->dev,
"Failed to query DCBX capability, err %d\n", err);
} else {
mbx_out = cmd.rsp.arg[1];
if (buf)
memcpy(buf, &mbx_out, sizeof(u32));
}
qlcnic_free_mbx_args(&cmd);
return err;
}
static int __qlcnic_dcb_get_capability(struct qlcnic_dcb *dcb, u32 *val)
{
struct qlcnic_dcb_capability *cap = &dcb->cfg->capability;
u32 mbx_out;
int err;
memset(cap, 0, sizeof(struct qlcnic_dcb_capability));
err = qlcnic_dcb_query_hw_capability(dcb, (char *)val);
if (err)
return err;
mbx_out = *val;
if (QLC_DCB_TSA_SUPPORT(mbx_out))
cap->tsa_capability = true;
if (QLC_DCB_ETS_SUPPORT(mbx_out))
cap->ets_capability = true;
cap->max_num_tc = QLC_DCB_MAX_NUM_TC(mbx_out);
cap->max_ets_tc = QLC_DCB_MAX_NUM_ETS_TC(mbx_out);
cap->max_pfc_tc = QLC_DCB_MAX_NUM_PFC_TC(mbx_out);
if (cap->max_num_tc > QLC_DCB_MAX_TC ||
cap->max_ets_tc > cap->max_num_tc ||
cap->max_pfc_tc > cap->max_num_tc) {
dev_err(&dcb->adapter->pdev->dev, "Invalid DCB configuration\n");
return -EINVAL;
}
return err;
}
static int qlcnic_82xx_dcb_get_hw_capability(struct qlcnic_dcb *dcb)
{
struct qlcnic_dcb_cfg *cfg = dcb->cfg;
struct qlcnic_dcb_capability *cap;
u32 mbx_out;
int err;
err = __qlcnic_dcb_get_capability(dcb, &mbx_out);
if (err)
return err;
cap = &cfg->capability;
cap->dcb_capability = DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_LLD_MANAGED;
if (cap->dcb_capability && cap->tsa_capability && cap->ets_capability)
set_bit(QLCNIC_DCB_STATE, &dcb->state);
return err;
}
static int qlcnic_82xx_dcb_query_cee_param(struct qlcnic_dcb *dcb,
char *buf, u8 type)
{
u16 size = sizeof(struct qlcnic_82xx_dcb_param_mbx_le);
struct qlcnic_adapter *adapter = dcb->adapter;
struct qlcnic_82xx_dcb_param_mbx_le *prsp_le;
struct device *dev = &adapter->pdev->dev;
dma_addr_t cardrsp_phys_addr;
struct qlcnic_dcb_param rsp;
struct qlcnic_cmd_args cmd;
u64 phys_addr;
void *addr;
int err, i;
switch (type) {
case QLC_DCB_LOCAL_PARAM_FWID:
case QLC_DCB_OPER_PARAM_FWID:
case QLC_DCB_PEER_PARAM_FWID:
break;
default:
dev_err(dev, "Invalid parameter type %d\n", type);
return -EINVAL;
}
addr = dma_alloc_coherent(dev, size, &cardrsp_phys_addr, GFP_KERNEL);
if (addr == NULL)
return -ENOMEM;
prsp_le = addr;
err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DCB_QUERY_PARAM);
if (err)
goto out_free_rsp;
phys_addr = cardrsp_phys_addr;
cmd.req.arg[1] = size | (type << 16);
cmd.req.arg[2] = MSD(phys_addr);
cmd.req.arg[3] = LSD(phys_addr);
err = qlcnic_issue_cmd(adapter, &cmd);
if (err) {
dev_err(dev, "Failed to query DCBX parameter, err %d\n", err);
goto out;
}
memset(&rsp, 0, sizeof(struct qlcnic_dcb_param));
rsp.hdr_prio_pfc_map[0] = le32_to_cpu(prsp_le->hdr_prio_pfc_map[0]);
rsp.hdr_prio_pfc_map[1] = le32_to_cpu(prsp_le->hdr_prio_pfc_map[1]);
rsp.prio_pg_map[0] = le32_to_cpu(prsp_le->prio_pg_map[0]);
rsp.prio_pg_map[1] = le32_to_cpu(prsp_le->prio_pg_map[1]);
rsp.pg_bw_map[0] = le32_to_cpu(prsp_le->pg_bw_map[0]);
rsp.pg_bw_map[1] = le32_to_cpu(prsp_le->pg_bw_map[1]);
rsp.pg_tsa_map[0] = le32_to_cpu(prsp_le->pg_tsa_map[0]);
rsp.pg_tsa_map[1] = le32_to_cpu(prsp_le->pg_tsa_map[1]);
for (i = 0; i < QLC_DCB_MAX_APP; i++)
rsp.app[i] = le32_to_cpu(prsp_le->app[i]);
if (buf)
memcpy(buf, &rsp, size);
out:
qlcnic_free_mbx_args(&cmd);
out_free_rsp:
dma_free_coherent(dev, size, addr, cardrsp_phys_addr);
return err;
}
static int qlcnic_82xx_dcb_get_cee_cfg(struct qlcnic_dcb *dcb)
{
struct qlcnic_dcb_mbx_params *mbx;
int err;
mbx = dcb->param;
if (!mbx)
return 0;
err = qlcnic_dcb_query_cee_param(dcb, (char *)&mbx->type[0],
QLC_DCB_LOCAL_PARAM_FWID);
if (err)
return err;
err = qlcnic_dcb_query_cee_param(dcb, (char *)&mbx->type[1],
QLC_DCB_OPER_PARAM_FWID);
if (err)
return err;
err = qlcnic_dcb_query_cee_param(dcb, (char *)&mbx->type[2],
QLC_DCB_PEER_PARAM_FWID);
if (err)
return err;
mbx->prio_tc_map = QLC_82XX_DCB_PRIO_TC_MAP;
qlcnic_dcb_data_cee_param_map(dcb->adapter);
return err;
}
static void qlcnic_dcb_aen_work(struct work_struct *work)
{
struct qlcnic_dcb *dcb;
dcb = container_of(work, struct qlcnic_dcb, aen_work.work);
qlcnic_dcb_get_cee_cfg(dcb);
clear_bit(QLCNIC_DCB_AEN_MODE, &dcb->state);
}
static void qlcnic_82xx_dcb_aen_handler(struct qlcnic_dcb *dcb, void *data)
{
if (test_and_set_bit(QLCNIC_DCB_AEN_MODE, &dcb->state))
return;
queue_delayed_work(dcb->wq, &dcb->aen_work, 0);
}
static int qlcnic_83xx_dcb_get_hw_capability(struct qlcnic_dcb *dcb)
{
struct qlcnic_dcb_capability *cap = &dcb->cfg->capability;
u32 mbx_out;
int err;
err = __qlcnic_dcb_get_capability(dcb, &mbx_out);
if (err)
return err;
if (mbx_out & BIT_2)
cap->dcb_capability = DCB_CAP_DCBX_VER_CEE;
if (mbx_out & BIT_3)
cap->dcb_capability |= DCB_CAP_DCBX_VER_IEEE;
if (cap->dcb_capability)
cap->dcb_capability |= DCB_CAP_DCBX_LLD_MANAGED;
if (cap->dcb_capability && cap->tsa_capability && cap->ets_capability)
set_bit(QLCNIC_DCB_STATE, &dcb->state);
return err;
}
static int qlcnic_83xx_dcb_query_cee_param(struct qlcnic_dcb *dcb,
char *buf, u8 idx)
{
struct qlcnic_adapter *adapter = dcb->adapter;
struct qlcnic_dcb_mbx_params mbx_out;
int err, i, j, k, max_app, size;
struct qlcnic_dcb_param *each;
struct qlcnic_cmd_args cmd;
u32 val;
char *p;
size = 0;
memset(&mbx_out, 0, sizeof(struct qlcnic_dcb_mbx_params));
memset(buf, 0, sizeof(struct qlcnic_dcb_mbx_params));
err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DCB_QUERY_PARAM);
if (err)
return err;
cmd.req.arg[0] |= QLC_DCB_FW_VER << 29;
err = qlcnic_issue_cmd(adapter, &cmd);
if (err) {
dev_err(&adapter->pdev->dev,
"Failed to query DCBX param, err %d\n", err);
goto out;
}
mbx_out.prio_tc_map = cmd.rsp.arg[1];
p = memcpy(buf, &mbx_out, sizeof(u32));
k = 2;
p += sizeof(u32);
for (j = 0; j < QLC_DCB_NUM_PARAM; j++) {
each = &mbx_out.type[j];
each->hdr_prio_pfc_map[0] = cmd.rsp.arg[k++];
each->hdr_prio_pfc_map[1] = cmd.rsp.arg[k++];
each->prio_pg_map[0] = cmd.rsp.arg[k++];
each->prio_pg_map[1] = cmd.rsp.arg[k++];
each->pg_bw_map[0] = cmd.rsp.arg[k++];
each->pg_bw_map[1] = cmd.rsp.arg[k++];
each->pg_tsa_map[0] = cmd.rsp.arg[k++];
each->pg_tsa_map[1] = cmd.rsp.arg[k++];
val = each->hdr_prio_pfc_map[0];
max_app = qlcnic_dcb_get_num_app(adapter, val);
for (i = 0; i < max_app; i++)
each->app[i] = cmd.rsp.arg[i + k];
size = 16 * sizeof(u32);
memcpy(p, &each->hdr_prio_pfc_map[0], size);
p += size;
if (j == 0)
k = 18;
else
k = 34;
}
out:
qlcnic_free_mbx_args(&cmd);
return err;
}
static int qlcnic_83xx_dcb_get_cee_cfg(struct qlcnic_dcb *dcb)
{
int err;
err = qlcnic_dcb_query_cee_param(dcb, (char *)dcb->param, 0);
if (err)
return err;
qlcnic_dcb_data_cee_param_map(dcb->adapter);
return err;
}
static void qlcnic_83xx_dcb_aen_handler(struct qlcnic_dcb *dcb, void *data)
{
u32 *val = data;
if (test_and_set_bit(QLCNIC_DCB_AEN_MODE, &dcb->state))
return;
if (*val & BIT_8)
set_bit(QLCNIC_DCB_STATE, &dcb->state);
else
clear_bit(QLCNIC_DCB_STATE, &dcb->state);
queue_delayed_work(dcb->wq, &dcb->aen_work, 0);
}
static void qlcnic_dcb_fill_cee_tc_params(struct qlcnic_dcb_mbx_params *mbx,
struct qlcnic_dcb_param *each,
struct qlcnic_dcb_cee *type)
{
struct qlcnic_dcb_tc_cfg *tc_cfg;
u8 i, tc, pgid;
for (i = 0; i < QLC_DCB_MAX_PRIO; i++) {
tc = QLC_DCB_GET_TC_PRIO(mbx->prio_tc_map, i);
tc_cfg = &type->tc_cfg[tc];
tc_cfg->valid = true;
tc_cfg->up_tc_map |= QLC_DCB_GET_MAP(i);
if (QLC_DCB_GET_PFC_PRIO(each->hdr_prio_pfc_map[1], i) &&
type->pfc_mode_enable) {
tc_cfg->prio_cfg[i].valid = true;
tc_cfg->prio_cfg[i].pfc_type = QLC_PFC_FULL;
}
if (i < 4)
pgid = QLC_DCB_GET_PGID_PRIO(each->prio_pg_map[0], i);
else
pgid = QLC_DCB_GET_PGID_PRIO(each->prio_pg_map[1], i);
tc_cfg->pgid = pgid;
tc_cfg->prio_type = QLC_PRIO_LINK;
type->pg_cfg[tc_cfg->pgid].prio_count++;
}
}
static void qlcnic_dcb_fill_cee_pg_params(struct qlcnic_dcb_param *each,
struct qlcnic_dcb_cee *type)
{
struct qlcnic_dcb_pg_cfg *pg_cfg;
u8 i, tsa, bw_per;
for (i = 0; i < QLC_DCB_MAX_PG; i++) {
pg_cfg = &type->pg_cfg[i];
pg_cfg->valid = true;
if (i < 4) {
bw_per = QLC_DCB_GET_BWPER_PG(each->pg_bw_map[0], i);
tsa = QLC_DCB_GET_TSA_PG(each->pg_tsa_map[0], i);
} else {
bw_per = QLC_DCB_GET_BWPER_PG(each->pg_bw_map[1], i);
tsa = QLC_DCB_GET_TSA_PG(each->pg_tsa_map[1], i);
}
pg_cfg->total_bw_percent = bw_per;
pg_cfg->tsa_type = tsa;
}
}
static void
qlcnic_dcb_fill_cee_app_params(struct qlcnic_adapter *adapter, u8 idx,
struct qlcnic_dcb_param *each,
struct qlcnic_dcb_cee *type)
{
struct qlcnic_dcb_app *app;
u8 i, num_app, map, cnt;
struct dcb_app new_app;
num_app = qlcnic_dcb_get_num_app(adapter, each->hdr_prio_pfc_map[0]);
for (i = 0; i < num_app; i++) {
app = &type->app[i];
app->valid = true;
/* Only for CEE (-1) */
app->selector = QLC_DCB_GET_SELECTOR_APP(each->app[i]) - 1;
new_app.selector = app->selector;
app->protocol = QLC_DCB_GET_PROTO_ID_APP(each->app[i]);
new_app.protocol = app->protocol;
map = qlcnic_dcb_get_prio_map_app(adapter, each->app[i]);
cnt = qlcnic_dcb_prio_count(map);
if (cnt >= QLC_DCB_MAX_TC)
cnt = 0;
app->priority = cnt;
new_app.priority = cnt;
if (idx == QLC_DCB_OPER_IDX && adapter->netdev->dcbnl_ops)
dcb_setapp(adapter->netdev, &new_app);
}
}
static void qlcnic_dcb_map_cee_params(struct qlcnic_adapter *adapter, u8 idx)
{
struct qlcnic_dcb_mbx_params *mbx = adapter->dcb->param;
struct qlcnic_dcb_param *each = &mbx->type[idx];
struct qlcnic_dcb_cfg *cfg = adapter->dcb->cfg;
struct qlcnic_dcb_cee *type = &cfg->type[idx];
type->tc_param_valid = false;
type->pfc_mode_enable = false;
memset(type->tc_cfg, 0,
sizeof(struct qlcnic_dcb_tc_cfg) * QLC_DCB_MAX_TC);
memset(type->pg_cfg, 0,
sizeof(struct qlcnic_dcb_pg_cfg) * QLC_DCB_MAX_TC);
if (qlcnic_dcb_pfc_hdr_valid(adapter, each->hdr_prio_pfc_map[0]) &&
cfg->capability.max_pfc_tc)
type->pfc_mode_enable = true;
if (qlcnic_dcb_tsa_hdr_valid(adapter, each->hdr_prio_pfc_map[0]) &&
cfg->capability.max_ets_tc)
type->tc_param_valid = true;
qlcnic_dcb_fill_cee_tc_params(mbx, each, type);
qlcnic_dcb_fill_cee_pg_params(each, type);
qlcnic_dcb_fill_cee_app_params(adapter, idx, each, type);
}
static void qlcnic_dcb_data_cee_param_map(struct qlcnic_adapter *adapter)
{
int i;
for (i = 0; i < QLC_DCB_NUM_PARAM; i++)
qlcnic_dcb_map_cee_params(adapter, i);
dcbnl_cee_notify(adapter->netdev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
}
static u8 qlcnic_dcb_get_state(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
return test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state);
}
static void qlcnic_dcb_get_perm_hw_addr(struct net_device *netdev, u8 *addr)
{
memcpy(addr, netdev->perm_addr, netdev->addr_len);
}
static void
qlcnic_dcb_get_pg_tc_cfg_tx(struct net_device *netdev, int tc, u8 *prio,
u8 *pgid, u8 *bw_per, u8 *up_tc_map)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_dcb_tc_cfg *tc_cfg, *temp;
struct qlcnic_dcb_cee *type;
u8 i, cnt, pg;
type = &adapter->dcb->cfg->type[QLC_DCB_OPER_IDX];
*prio = *pgid = *bw_per = *up_tc_map = 0;
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state) ||
!type->tc_param_valid)
return;
if (tc < 0 || (tc >= QLC_DCB_MAX_TC))
return;
tc_cfg = &type->tc_cfg[tc];
if (!tc_cfg->valid)
return;
*pgid = tc_cfg->pgid;
*prio = tc_cfg->prio_type;
*up_tc_map = tc_cfg->up_tc_map;
pg = *pgid;
for (i = 0, cnt = 0; i < QLC_DCB_MAX_TC; i++) {
temp = &type->tc_cfg[i];
if (temp->valid && (pg == temp->pgid))
cnt++;
}
tc_cfg->bwg_percent = (100 / cnt);
*bw_per = tc_cfg->bwg_percent;
}
static void qlcnic_dcb_get_pg_bwg_cfg_tx(struct net_device *netdev, int pgid,
u8 *bw_pct)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_dcb_pg_cfg *pgcfg;
struct qlcnic_dcb_cee *type;
*bw_pct = 0;
type = &adapter->dcb->cfg->type[QLC_DCB_OPER_IDX];
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state) ||
!type->tc_param_valid)
return;
if (pgid < 0 || pgid >= QLC_DCB_MAX_PG)
return;
pgcfg = &type->pg_cfg[pgid];
if (!pgcfg->valid)
return;
*bw_pct = pgcfg->total_bw_percent;
}
static void qlcnic_dcb_get_pfc_cfg(struct net_device *netdev, int prio,
u8 *setting)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_dcb_tc_cfg *tc_cfg;
u8 val = QLC_DCB_GET_MAP(prio);
struct qlcnic_dcb_cee *type;
u8 i;
*setting = 0;
type = &adapter->dcb->cfg->type[QLC_DCB_OPER_IDX];
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state) ||
!type->pfc_mode_enable)
return;
for (i = 0; i < QLC_DCB_MAX_TC; i++) {
tc_cfg = &type->tc_cfg[i];
if (!tc_cfg->valid)
continue;
if ((val & tc_cfg->up_tc_map) && (tc_cfg->prio_cfg[prio].valid))
*setting = tc_cfg->prio_cfg[prio].pfc_type;
}
}
static u8 qlcnic_dcb_get_capability(struct net_device *netdev, int capid,
u8 *cap)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
return 0;
switch (capid) {
case DCB_CAP_ATTR_PG:
case DCB_CAP_ATTR_UP2TC:
case DCB_CAP_ATTR_PFC:
case DCB_CAP_ATTR_GSP:
*cap = true;
break;
case DCB_CAP_ATTR_PG_TCS:
case DCB_CAP_ATTR_PFC_TCS:
*cap = 0x80; /* 8 priorities for PGs */
break;
case DCB_CAP_ATTR_DCBX:
*cap = adapter->dcb->cfg->capability.dcb_capability;
break;
default:
*cap = false;
}
return 0;
}
static int qlcnic_dcb_get_num_tcs(struct net_device *netdev, int attr, u8 *num)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_dcb_cfg *cfg = adapter->dcb->cfg;
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
return -EINVAL;
switch (attr) {
case DCB_NUMTCS_ATTR_PG:
*num = cfg->capability.max_ets_tc;
return 0;
case DCB_NUMTCS_ATTR_PFC:
*num = cfg->capability.max_pfc_tc;
return 0;
default:
return -EINVAL;
}
}
static u8 qlcnic_dcb_get_app(struct net_device *netdev, u8 idtype, u16 id)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct dcb_app app = {
.selector = idtype,
.protocol = id,
};
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
return 0;
return dcb_getapp(netdev, &app);
}
static u8 qlcnic_dcb_get_pfc_state(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_dcb *dcb = adapter->dcb;
if (!test_bit(QLCNIC_DCB_STATE, &dcb->state))
return 0;
return dcb->cfg->type[QLC_DCB_OPER_IDX].pfc_mode_enable;
}
static u8 qlcnic_dcb_get_dcbx(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_dcb_cfg *cfg = adapter->dcb->cfg;
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
return 0;
return cfg->capability.dcb_capability;
}
static u8 qlcnic_dcb_get_feat_cfg(struct net_device *netdev, int fid, u8 *flag)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_dcb_cee *type;
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
return 1;
type = &adapter->dcb->cfg->type[QLC_DCB_OPER_IDX];
*flag = 0;
switch (fid) {
case DCB_FEATCFG_ATTR_PG:
if (type->tc_param_valid)
*flag |= DCB_FEATCFG_ENABLE;
else
*flag |= DCB_FEATCFG_ERROR;
break;
case DCB_FEATCFG_ATTR_PFC:
if (type->pfc_mode_enable) {
if (type->tc_cfg[0].prio_cfg[0].pfc_type)
*flag |= DCB_FEATCFG_ENABLE;
} else {
*flag |= DCB_FEATCFG_ERROR;
}
break;
case DCB_FEATCFG_ATTR_APP:
*flag |= DCB_FEATCFG_ENABLE;
break;
default:
netdev_err(netdev, "Invalid Feature ID %d\n", fid);
return 1;
}
return 0;
}
static inline void
qlcnic_dcb_get_pg_tc_cfg_rx(struct net_device *netdev, int prio, u8 *prio_type,
u8 *pgid, u8 *bw_pct, u8 *up_map)
{
*prio_type = *pgid = *bw_pct = *up_map = 0;
}
static inline void
qlcnic_dcb_get_pg_bwg_cfg_rx(struct net_device *netdev, int pgid, u8 *bw_pct)
{
*bw_pct = 0;
}
static int qlcnic_dcb_peer_app_info(struct net_device *netdev,
struct dcb_peer_app_info *info,
u16 *app_count)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_dcb_cee *peer;
int i;
*app_count = 0;
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
return 0;
peer = &adapter->dcb->cfg->type[QLC_DCB_PEER_IDX];
for (i = 0; i < QLC_DCB_MAX_APP; i++) {
if (peer->app[i].valid)
(*app_count)++;
}
return 0;
}
static int qlcnic_dcb_peer_app_table(struct net_device *netdev,
struct dcb_app *table)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_dcb_cee *peer;
struct qlcnic_dcb_app *app;
int i, j;
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
return 0;
peer = &adapter->dcb->cfg->type[QLC_DCB_PEER_IDX];
for (i = 0, j = 0; i < QLC_DCB_MAX_APP; i++) {
app = &peer->app[i];
if (!app->valid)
continue;
table[j].selector = app->selector;
table[j].priority = app->priority;
table[j++].protocol = app->protocol;
}
return 0;
}
static int qlcnic_dcb_cee_peer_get_pg(struct net_device *netdev,
struct cee_pg *pg)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_dcb_cee *peer;
u8 i, j, k, map;
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
return 0;
peer = &adapter->dcb->cfg->type[QLC_DCB_PEER_IDX];
for (i = 0, j = 0; i < QLC_DCB_MAX_PG; i++) {
if (!peer->pg_cfg[i].valid)
continue;
pg->pg_bw[j] = peer->pg_cfg[i].total_bw_percent;
for (k = 0; k < QLC_DCB_MAX_TC; k++) {
if (peer->tc_cfg[i].valid &&
(peer->tc_cfg[i].pgid == i)) {
map = peer->tc_cfg[i].up_tc_map;
pg->prio_pg[j++] = map;
break;
}
}
}
return 0;
}
static int qlcnic_dcb_cee_peer_get_pfc(struct net_device *netdev,
struct cee_pfc *pfc)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_dcb_cfg *cfg = adapter->dcb->cfg;
struct qlcnic_dcb_tc_cfg *tc;
struct qlcnic_dcb_cee *peer;
u8 i, setting, prio;
pfc->pfc_en = 0;
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
return 0;
peer = &cfg->type[QLC_DCB_PEER_IDX];
for (i = 0; i < QLC_DCB_MAX_TC; i++) {
tc = &peer->tc_cfg[i];
prio = qlcnic_dcb_prio_count(tc->up_tc_map);
setting = 0;
qlcnic_dcb_get_pfc_cfg(netdev, prio, &setting);
if (setting)
pfc->pfc_en |= QLC_DCB_GET_MAP(i);
}
pfc->tcs_supported = cfg->capability.max_pfc_tc;
return 0;
}
static const struct dcbnl_rtnl_ops qlcnic_dcbnl_ops = {
.getstate = qlcnic_dcb_get_state,
.getpermhwaddr = qlcnic_dcb_get_perm_hw_addr,
.getpgtccfgtx = qlcnic_dcb_get_pg_tc_cfg_tx,
.getpgbwgcfgtx = qlcnic_dcb_get_pg_bwg_cfg_tx,
.getpfccfg = qlcnic_dcb_get_pfc_cfg,
.getcap = qlcnic_dcb_get_capability,
.getnumtcs = qlcnic_dcb_get_num_tcs,
.getapp = qlcnic_dcb_get_app,
.getpfcstate = qlcnic_dcb_get_pfc_state,
.getdcbx = qlcnic_dcb_get_dcbx,
.getfeatcfg = qlcnic_dcb_get_feat_cfg,
.getpgtccfgrx = qlcnic_dcb_get_pg_tc_cfg_rx,
.getpgbwgcfgrx = qlcnic_dcb_get_pg_bwg_cfg_rx,
.peer_getappinfo = qlcnic_dcb_peer_app_info,
.peer_getapptable = qlcnic_dcb_peer_app_table,
.cee_peer_getpg = qlcnic_dcb_cee_peer_get_pg,
.cee_peer_getpfc = qlcnic_dcb_cee_peer_get_pfc,
};