[PATCH v2 net-next 06/13] qed: FW 8.42.2.0 Additional ll2 type

Michal Kalderon
2020-01-23T10:59:37Z

LL2 queues were a limited resource due to FW constraints.
This FW introduced a new resource which is a context based ll2 queue
(memory on host). The additional ll2 queues are required for RDMA SRIOV.
The code refers to the previous ll2 queues as ram-based or legacy, and the
new queues as ctx-based.
This change decreased the "legacy" ram-based queues therefore the first ll2
queue used for iWARP was converted to the ctx-based ll2 queue.
This feature also exposed a bug in the DIRECT_REG_WR64 macro implementation
which didn't have an effect in other use cases.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
---
drivers/net/ethernet/qlogic/qed/qed.h | 3 +-
drivers/net/ethernet/qlogic/qed/qed_dev.c | 20 ++--
drivers/net/ethernet/qlogic/qed/qed_hsi.h | 42 +++++++-
drivers/net/ethernet/qlogic/qed/qed_iscsi.c | 5 +-
drivers/net/ethernet/qlogic/qed/qed_iwarp.c | 8 +-
drivers/net/ethernet/qlogic/qed/qed_ll2.c | 149 ++++++++++++++++++++++++----
drivers/net/ethernet/qlogic/qed/qed_ll2.h | 14 +++
drivers/net/ethernet/qlogic/qed/qed_mcp.c | 5 +-
include/linux/qed/common_hsi.h | 15 ++-
include/linux/qed/qed_if.h | 4 +-
include/linux/qed/qed_ll2_if.h | 7 ++
11 files changed, 235 insertions(+), 37 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed.h b/drivers/net/ethernet/qlogic/qed/qed.h
index 8ec46bf409c2..cfa45fb9a5a4 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -253,7 +253,8 @@ enum qed_resources {
QED_VLAN,
QED_RDMA_CNQ_RAM,
QED_ILT,
- QED_LL2_QUEUE,
+ QED_LL2_RAM_QUEUE,
+ QED_LL2_CTX_QUEUE,
QED_CMDQS_CQS,
QED_RDMA_STATS_QUEUE,
QED_BDQ,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 479d98e6187a..898c1f8d1530 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -3565,8 +3565,10 @@ const char *qed_hw_get_resc_name(enum qed_resources res_id)
return "RDMA_CNQ_RAM";
case QED_ILT:
return "ILT";
- case QED_LL2_QUEUE:
- return "LL2_QUEUE";
+ case QED_LL2_RAM_QUEUE:
+ return "LL2_RAM_QUEUE";
+ case QED_LL2_CTX_QUEUE:
+ return "LL2_CTX_QUEUE";
case QED_CMDQS_CQS:
return "CMDQS_CQS";
case QED_RDMA_STATS_QUEUE:
@@ -3615,8 +3617,11 @@ qed_hw_set_soft_resc_size(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)

for (res_id = 0; res_id < QED_MAX_RESC; res_id++) {
switch (res_id) {
- case QED_LL2_QUEUE:
- resc_max_val = MAX_NUM_LL2_RX_QUEUES;
+ case QED_LL2_RAM_QUEUE:
+ resc_max_val = MAX_NUM_LL2_RX_RAM_QUEUES;
+ break;
+ case QED_LL2_CTX_QUEUE:
+ resc_max_val = MAX_NUM_LL2_RX_CTX_QUEUES;
break;
case QED_RDMA_CNQ_RAM:
/* No need for a case for QED_CMDQS_CQS since
@@ -3691,8 +3696,11 @@ int qed_hw_get_dflt_resc(struct qed_hwfn *p_hwfn,
*p_resc_num = (b_ah ? PXP_NUM_ILT_RECORDS_K2 :
PXP_NUM_ILT_RECORDS_BB) / num_funcs;
break;
- case QED_LL2_QUEUE:
- *p_resc_num = MAX_NUM_LL2_RX_QUEUES / num_funcs;
+ case QED_LL2_RAM_QUEUE:
+ *p_resc_num = MAX_NUM_LL2_RX_RAM_QUEUES / num_funcs;
+ break;
+ case QED_LL2_CTX_QUEUE:
+ *p_resc_num = MAX_NUM_LL2_RX_CTX_QUEUES / num_funcs;
break;
case QED_RDMA_CNQ_RAM:
case QED_CMDQS_CQS:
diff --git a/drivers/net/ethernet/qlogic/qed/qed_hsi.h b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
index 565ab12fa87c..8cec6dc179d6 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_hsi.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
@@ -98,6 +98,7 @@ enum core_event_opcode {
CORE_EVENT_RX_QUEUE_STOP,
CORE_EVENT_RX_QUEUE_FLUSH,
CORE_EVENT_TX_QUEUE_UPDATE,
+ CORE_EVENT_QUEUE_STATS_QUERY,
MAX_CORE_EVENT_OPCODE
};

@@ -116,7 +117,7 @@ struct core_ll2_port_stats {
struct regpair gsi_crcchksm_error;
};

-/* Ethernet TX Per Queue Stats */
+/* LL2 TX Per Queue Stats */
struct core_ll2_pstorm_per_queue_stat {
struct regpair sent_ucast_bytes;
struct regpair sent_mcast_bytes;
@@ -124,13 +125,13 @@ struct core_ll2_pstorm_per_queue_stat {
struct regpair sent_ucast_pkts;
struct regpair sent_mcast_pkts;
struct regpair sent_bcast_pkts;
+ struct regpair error_drop_pkts;
};

/* Light-L2 RX Producers in Tstorm RAM */
struct core_ll2_rx_prod {
__le16 bd_prod;
__le16 cqe_prod;
- __le32 reserved;
};

struct core_ll2_tstorm_per_queue_stat {
@@ -147,6 +148,18 @@ struct core_ll2_ustorm_per_queue_stat {
struct regpair rcv_bcast_pkts;
};

+/* Structure for doorbell data, in PWM mode, for RX producers update. */
+struct core_pwm_prod_update_data {
+ __le16 icid; /* internal CID */
+ u8 reserved0;
+ u8 params;
+#define CORE_PWM_PROD_UPDATE_DATA_AGG_CMD_MASK 0x3
+#define CORE_PWM_PROD_UPDATE_DATA_AGG_CMD_SHIFT 0
+#define CORE_PWM_PROD_UPDATE_DATA_RESERVED1_MASK 0x3F /* Set 0 */
+#define CORE_PWM_PROD_UPDATE_DATA_RESERVED1_SHIFT 2
+ struct core_ll2_rx_prod prod; /* Producers */
+};
+
/* Core Ramrod Command IDs (light L2) */
enum core_ramrod_cmd_id {
CORE_RAMROD_UNUSED,
@@ -156,6 +169,7 @@ enum core_ramrod_cmd_id {
CORE_RAMROD_TX_QUEUE_STOP,
CORE_RAMROD_RX_QUEUE_FLUSH,
CORE_RAMROD_TX_QUEUE_UPDATE,
+ CORE_RAMROD_QUEUE_STATS_QUERY,
MAX_CORE_RAMROD_CMD_ID
};

@@ -274,8 +288,11 @@ struct core_rx_start_ramrod_data {
u8 mf_si_mcast_accept_all;
struct core_rx_action_on_error action_on_error;
u8 gsi_offload_flag;
+ u8 vport_id_valid;
+ u8 vport_id;
+ u8 zero_prod_flg;
u8 wipe_inner_vlan_pri_en;
- u8 reserved[5];
+ u8 reserved[2];
};

/* Ramrod data for rx queue stop ramrod */
@@ -352,8 +369,11 @@ struct core_tx_start_ramrod_data {
__le16 pbl_size;
__le16 qm_pq_id;
u8 gsi_offload_flag;
+ u8 ctx_stats_en;
+ u8 vport_id_valid;
u8 vport_id;
- u8 resrved[2];
+ u8 enforce_security_flag;
+ u8 reserved[7];
};

/* Ramrod data for tx queue stop ramrod */
@@ -761,7 +781,7 @@ struct e4_tstorm_core_conn_ag_ctx {
__le16 word1;
__le16 word2;
__le16 word3;
- __le32 reg9;
+ __le32 ll2_rx_prod;
__le32 reg10;
};

@@ -844,6 +864,11 @@ struct ustorm_core_conn_st_ctx {
__le32 reserved[4];
};

+/* The core storm context for the Tstorm */
+struct tstorm_core_conn_st_ctx {
+ __le32 reserved[4];
+};
+
/* core connection context */
struct e4_core_conn_context {
struct ystorm_core_conn_st_ctx ystorm_st_context;
@@ -857,6 +882,8 @@ struct e4_core_conn_context {
struct mstorm_core_conn_st_ctx mstorm_st_context;
struct ustorm_core_conn_st_ctx ustorm_st_context;
struct regpair ustorm_st_padding[2];
+ struct tstorm_core_conn_st_ctx tstorm_st_context;
+ struct regpair tstorm_st_padding[2];
};

struct eth_mstorm_per_pf_stat {
@@ -12484,6 +12511,11 @@ enum resource_id_enum {
RESOURCE_LL2_QUEUE_E = 15,
RESOURCE_RDMA_STATS_QUEUE_E = 16,
RESOURCE_BDQ_E = 17,
+ RESOURCE_QCN_E = 18,
+ RESOURCE_LLH_FILTER_E = 19,
+ RESOURCE_VF_MAC_ADDR = 20,
+ RESOURCE_LL2_CQS_E = 21,
+ RESOURCE_VF_CNQS = 22,
RESOURCE_MAX_NUM,
RESOURCE_NUM_INVALID = 0xFFFFFFFF
};
diff --git a/drivers/net/ethernet/qlogic/qed/qed_iscsi.c b/drivers/net/ethernet/qlogic/qed/qed_iscsi.c
index 5585c18053ec..8ee668d66b4b 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_iscsi.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_iscsi.c
@@ -213,8 +213,9 @@ qed_sp_iscsi_func_start(struct qed_hwfn *p_hwfn,
p_init->num_sq_pages_in_ring = p_params->num_sq_pages_in_ring;
p_init->num_r2tq_pages_in_ring = p_params->num_r2tq_pages_in_ring;
p_init->num_uhq_pages_in_ring = p_params->num_uhq_pages_in_ring;
- p_init->ll2_rx_queue_id = p_hwfn->hw_info.resc_start[QED_LL2_QUEUE] +
- p_params->ll2_ooo_queue_id;
+ p_init->ll2_rx_queue_id =
+ p_hwfn->hw_info.resc_start[QED_LL2_RAM_QUEUE] +
+ p_params->ll2_ooo_queue_id;

p_init->func_params.log_page_size = p_params->log_page_size;
val = p_params->num_tasks;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
index 65ec16a31658..d2fe61a5cf56 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
@@ -137,8 +137,8 @@ qed_iwarp_init_fw_ramrod(struct qed_hwfn *p_hwfn,
struct iwarp_init_func_ramrod_data *p_ramrod)
{
p_ramrod->iwarp.ll2_ooo_q_index =
- RESC_START(p_hwfn, QED_LL2_QUEUE) +
- p_hwfn->p_rdma_info->iwarp.ll2_ooo_handle;
+ RESC_START(p_hwfn, QED_LL2_RAM_QUEUE) +
+ p_hwfn->p_rdma_info->iwarp.ll2_ooo_handle;

p_ramrod->tcp.max_fin_rt = QED_IWARP_MAX_FIN_RT_DEFAULT;

@@ -2651,6 +2651,8 @@ qed_iwarp_ll2_start(struct qed_hwfn *p_hwfn,

memset(&data, 0, sizeof(data));
data.input.conn_type = QED_LL2_TYPE_IWARP;
+ /* SYN will use ctx based queues */
+ data.input.rx_conn_type = QED_LL2_RX_TYPE_CTX;
data.input.mtu = params->max_mtu;
data.input.rx_num_desc = QED_IWARP_LL2_SYN_RX_SIZE;
data.input.tx_num_desc = QED_IWARP_LL2_SYN_TX_SIZE;
@@ -2683,6 +2685,8 @@ qed_iwarp_ll2_start(struct qed_hwfn *p_hwfn,

/* Start OOO connection */
data.input.conn_type = QED_LL2_TYPE_OOO;
+ /* OOO/unaligned will use legacy ll2 queues (ram based) */
+ data.input.rx_conn_type = QED_LL2_RX_TYPE_LEGACY;
data.input.mtu = params->max_mtu;

n_ooo_bufs = (QED_IWARP_MAX_OOO * rcv_wnd_size) /
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index 19a1a58d60f8..037e5978787e 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -962,7 +962,7 @@ static int qed_sp_ll2_rx_queue_start(struct qed_hwfn *p_hwfn,
return rc;

p_ramrod = &p_ent->ramrod.core_rx_queue_start;
-
+ memset(p_ramrod, 0, sizeof(*p_ramrod));
p_ramrod->sb_id = cpu_to_le16(qed_int_get_sp_sb_id(p_hwfn));
p_ramrod->sb_index = p_rx->rx_sb_index;
p_ramrod->complete_event_flg = 1;
@@ -996,6 +996,8 @@ static int qed_sp_ll2_rx_queue_start(struct qed_hwfn *p_hwfn,

p_ramrod->action_on_error.error_type = action_on_error;
p_ramrod->gsi_offload_flag = p_ll2_conn->input.gsi_enable;
+ p_ramrod->zero_prod_flg = 1;
+
return qed_spq_post(p_hwfn, p_ent, NULL);
}

@@ -1317,6 +1319,25 @@ qed_ll2_set_cbs(struct qed_ll2_info *p_ll2_info, const struct qed_ll2_cbs *cbs)
return 0;
}

+static void _qed_ll2_calc_allowed_conns(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_acquire_data *data,
+ u8 *start_idx, u8 *last_idx)
+{
+ /* LL2 queues handles will be split as follows:
+ * First will be the legacy queues, and then the ctx based.
+ */
+ if (data->input.rx_conn_type == QED_LL2_RX_TYPE_LEGACY) {
+ *start_idx = QED_LL2_LEGACY_CONN_BASE_PF;
+ *last_idx = *start_idx +
+ QED_MAX_NUM_OF_LEGACY_LL2_CONNS_PF;
+ } else {
+ /* QED_LL2_RX_TYPE_CTX */
+ *start_idx = QED_LL2_CTX_CONN_BASE_PF;
+ *last_idx = *start_idx +
+ QED_MAX_NUM_OF_CTX_LL2_CONNS_PF;
+ }
+}
+
static enum core_error_handle
qed_ll2_get_error_choice(enum qed_ll2_error_handle err)
{
@@ -1337,14 +1358,16 @@ int qed_ll2_acquire_connection(void *cxt, struct qed_ll2_acquire_data *data)
struct qed_hwfn *p_hwfn = cxt;
qed_int_comp_cb_t comp_rx_cb, comp_tx_cb;
struct qed_ll2_info *p_ll2_info = NULL;
- u8 i, *p_tx_max;
+ u8 i, first_idx, last_idx, *p_tx_max;
int rc;

if (!data->p_connection_handle || !p_hwfn->p_ll2_info)
return -EINVAL;

+ _qed_ll2_calc_allowed_conns(p_hwfn, data, &first_idx, &last_idx);
+
/* Find a free connection to be used */
- for (i = 0; (i < QED_MAX_NUM_OF_LL2_CONNECTIONS); i++) {
+ for (i = first_idx; i < last_idx; i++) {
mutex_lock(&p_hwfn->p_ll2_info[i].mutex);
if (p_hwfn->p_ll2_info[i].b_active) {
mutex_unlock(&p_hwfn->p_ll2_info[i].mutex);
@@ -1448,6 +1471,7 @@ static int qed_ll2_establish_connection_rx(struct qed_hwfn *p_hwfn,
enum qed_ll2_error_handle error_input;
enum core_error_handle error_mode;
u8 action_on_error = 0;
+ int rc;

if (!QED_LL2_RX_REGISTERED(p_ll2_conn))
return 0;
@@ -1461,7 +1485,18 @@ static int qed_ll2_establish_connection_rx(struct qed_hwfn *p_hwfn,
error_mode = qed_ll2_get_error_choice(error_input);
SET_FIELD(action_on_error, CORE_RX_ACTION_ON_ERROR_NO_BUFF, error_mode);

- return qed_sp_ll2_rx_queue_start(p_hwfn, p_ll2_conn, action_on_error);
+ rc = qed_sp_ll2_rx_queue_start(p_hwfn, p_ll2_conn, action_on_error);
+ if (rc)
+ return rc;
+
+ if (p_ll2_conn->rx_queue.ctx_based) {
+ rc = qed_db_recovery_add(p_hwfn->cdev,
+ p_ll2_conn->rx_queue.set_prod_addr,
+ &p_ll2_conn->rx_queue.db_data,
+ DB_REC_WIDTH_64B, DB_REC_KERNEL);
+ }
+
+ return rc;
}

static void
@@ -1475,13 +1510,41 @@ qed_ll2_establish_connection_ooo(struct qed_hwfn *p_hwfn,
qed_ooo_submit_rx_buffers(p_hwfn, p_ll2_conn);
}

+static inline u8 qed_ll2_handle_to_queue_id(struct qed_hwfn *p_hwfn,
+ u8 handle,
+ u8 ll2_queue_type)
+{
+ u8 qid;
+
+ if (ll2_queue_type == QED_LL2_RX_TYPE_LEGACY)
+ return p_hwfn->hw_info.resc_start[QED_LL2_RAM_QUEUE] + handle;
+
+ /* QED_LL2_RX_TYPE_CTX
+ * FW distinguishes between the legacy queues (ram based) and the
+ * ctx based queues by the queue_id.
+ * The first MAX_NUM_LL2_RX_RAM_QUEUES queues are legacy
+ * and the queue ids above that are ctx base.
+ */
+ qid = p_hwfn->hw_info.resc_start[QED_LL2_CTX_QUEUE] +
+ MAX_NUM_LL2_RX_RAM_QUEUES;
+
+ /* See comment on the acquire connection for how the ll2
+ * queues handles are divided.
+ */
+ qid += (handle - QED_MAX_NUM_OF_LEGACY_LL2_CONNS_PF);
+
+ return qid;
+}
+
int qed_ll2_establish_connection(void *cxt, u8 connection_handle)
{
- struct qed_hwfn *p_hwfn = cxt;
- struct qed_ll2_info *p_ll2_conn;
+ struct e4_core_conn_context *p_cxt;
struct qed_ll2_tx_packet *p_pkt;
+ struct qed_ll2_info *p_ll2_conn;
+ struct qed_hwfn *p_hwfn = cxt;
struct qed_ll2_rx_queue *p_rx;
struct qed_ll2_tx_queue *p_tx;
+ struct qed_cxt_info cxt_info;
struct qed_ptt *p_ptt;
int rc = -EINVAL;
u32 i, capacity;
@@ -1539,13 +1602,46 @@ int qed_ll2_establish_connection(void *cxt, u8 connection_handle)
rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_CORE, &p_ll2_conn->cid);
if (rc)
goto out;
+ cxt_info.iid = p_ll2_conn->cid;
+ rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
+ if (rc) {
+ DP_NOTICE(p_hwfn, "Cannot find context info for cid=%d\n",
+ p_ll2_conn->cid);
+ goto out;
+ }
+
+ p_cxt = cxt_info.p_cxt;
+
+ memset(p_cxt, 0, sizeof(*p_cxt));

- qid = p_hwfn->hw_info.resc_start[QED_LL2_QUEUE] + connection_handle;
+ qid = qed_ll2_handle_to_queue_id(p_hwfn, connection_handle,
+ p_ll2_conn->input.rx_conn_type);
p_ll2_conn->queue_id = qid;
p_ll2_conn->tx_stats_id = qid;
- p_rx->set_prod_addr = (u8 __iomem *)p_hwfn->regview +
- GTT_BAR0_MAP_REG_TSDM_RAM +
- TSTORM_LL2_RX_PRODS_OFFSET(qid);
+
+ DP_VERBOSE(p_hwfn, QED_MSG_LL2,
+ "Establishing ll2 queue. PF %d ctx_based=%d abs qid=%d\n",
+ p_hwfn->rel_pf_id, p_ll2_conn->input.rx_conn_type, qid);
+
+ if (p_ll2_conn->input.rx_conn_type == QED_LL2_RX_TYPE_LEGACY) {
+ p_rx->set_prod_addr = p_hwfn->regview +
+ GTT_BAR0_MAP_REG_TSDM_RAM + TSTORM_LL2_RX_PRODS_OFFSET(qid);
+ } else {
+ /* QED_LL2_RX_TYPE_CTX - using doorbell */
+ p_rx->ctx_based = 1;
+
+ p_rx->set_prod_addr = p_hwfn->doorbells +
+ p_hwfn->dpi_start_offset +
+ DB_ADDR_SHIFT(DQ_PWM_OFFSET_TCM_LL2_PROD_UPDATE);
+
+ /* prepare db data */
+ p_rx->db_data.icid = cpu_to_le16((u16)p_ll2_conn->cid);
+ SET_FIELD(p_rx->db_data.params,
+ CORE_PWM_PROD_UPDATE_DATA_AGG_CMD, DB_AGG_CMD_SET);
+ SET_FIELD(p_rx->db_data.params,
+ CORE_PWM_PROD_UPDATE_DATA_RESERVED1, 0);
+ }
+
p_tx->doorbell_addr = (u8 __iomem *)p_hwfn->doorbells +
qed_db_addr(p_ll2_conn->cid,
DQ_DEMS_LEGACY);
@@ -1556,7 +1652,6 @@ int qed_ll2_establish_connection(void *cxt, u8 connection_handle)
DQ_XCM_CORE_TX_BD_PROD_CMD);
p_tx->db_msg.agg_flags = DQ_XCM_CORE_DQ_CF_CMD;

-
rc = qed_ll2_establish_connection_rx(p_hwfn, p_ll2_conn);
if (rc)
goto out;
@@ -1590,7 +1685,7 @@ static void qed_ll2_post_rx_buffer_notify_fw(struct qed_hwfn *p_hwfn,
struct qed_ll2_rx_packet *p_curp)
{
struct qed_ll2_rx_packet *p_posting_packet = NULL;
- struct core_ll2_rx_prod rx_prod = { 0, 0, 0 };
+ struct core_ll2_rx_prod rx_prod = { 0, 0 };
bool b_notify_fw = false;
u16 bd_prod, cq_prod;

@@ -1615,13 +1710,27 @@ static void qed_ll2_post_rx_buffer_notify_fw(struct qed_hwfn *p_hwfn,

bd_prod = qed_chain_get_prod_idx(&p_rx->rxq_chain);
cq_prod = qed_chain_get_prod_idx(&p_rx->rcq_chain);
- rx_prod.bd_prod = cpu_to_le16(bd_prod);
- rx_prod.cqe_prod = cpu_to_le16(cq_prod);
+ if (p_rx->ctx_based) {
+ /* update producer by giving a doorbell */
+ p_rx->db_data.prod.bd_prod = cpu_to_le16(bd_prod);
+ p_rx->db_data.prod.cqe_prod = cpu_to_le16(cq_prod);
+ /* Make sure chain element is updated before ringing the
+ * doorbell
+ */
+ dma_wmb();
+ DIRECT_REG_WR64(p_rx->set_prod_addr,
+ *((u64 *)&p_rx->db_data));
+ } else {
+ rx_prod.bd_prod = cpu_to_le16(bd_prod);
+ rx_prod.cqe_prod = cpu_to_le16(cq_prod);

- /* Make sure chain element is updated before ringing the doorbell */
- dma_wmb();
+ /* Make sure chain element is updated before ringing the
+ * doorbell
+ */
+ dma_wmb();

- DIRECT_REG_WR(p_rx->set_prod_addr, *((u32 *)&rx_prod));
+ DIRECT_REG_WR(p_rx->set_prod_addr, *((u32 *)&rx_prod));
+ }
}

int qed_ll2_post_rx_buffer(void *cxt,
@@ -1965,6 +2074,12 @@ int qed_ll2_terminate_connection(void *cxt, u8 connection_handle)
if (QED_LL2_RX_REGISTERED(p_ll2_conn)) {
p_ll2_conn->rx_queue.b_cb_registered = false;
smp_wmb(); /* Make sure this is seen by ll2_lb_rxq_completion */
+
+ if (p_ll2_conn->rx_queue.ctx_based)
+ qed_db_recovery_del(p_hwfn->cdev,
+ p_ll2_conn->rx_queue.set_prod_addr,
+ &p_ll2_conn->rx_queue.db_data);
+
rc = qed_sp_ll2_rx_queue_stop(p_hwfn, p_ll2_conn);
if (rc)
goto out;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.h b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
index 5f01fbd3c073..288642d526b7 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
@@ -46,6 +46,18 @@
#include "qed_sp.h"

#define QED_MAX_NUM_OF_LL2_CONNECTIONS (4)
+/* LL2 queues handles will be split as follows:
+ * first will be legacy queues, and then the ctx based queues.
+ */
+#define QED_MAX_NUM_OF_LL2_CONNS_PF (4)
+#define QED_MAX_NUM_OF_LEGACY_LL2_CONNS_PF (3)
+
+#define QED_MAX_NUM_OF_CTX_LL2_CONNS_PF \
+ (QED_MAX_NUM_OF_LL2_CONNS_PF - QED_MAX_NUM_OF_LEGACY_LL2_CONNS_PF)
+
+#define QED_LL2_LEGACY_CONN_BASE_PF 0
+#define QED_LL2_CTX_CONN_BASE_PF QED_MAX_NUM_OF_LEGACY_LL2_CONNS_PF
+

struct qed_ll2_rx_packet {
struct list_head list_entry;
@@ -79,6 +91,7 @@ struct qed_ll2_rx_queue {
struct qed_chain rxq_chain;
struct qed_chain rcq_chain;
u8 rx_sb_index;
+ u8 ctx_based;
bool b_cb_registered;
__le16 *p_fw_cons;
struct list_head active_descq;
@@ -86,6 +99,7 @@ struct qed_ll2_rx_queue {
struct list_head posting_descq;
struct qed_ll2_rx_packet *descq_array;
void __iomem *set_prod_addr;
+ struct core_pwm_prod_update_data db_data;
};

struct qed_ll2_tx_queue {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index 36ddb89856a8..aeac359941de 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -3261,9 +3261,12 @@ static enum resource_id_enum qed_mcp_get_mfw_res_id(enum qed_resources res_id)
case QED_ILT:
mfw_res_id = RESOURCE_ILT_E;
break;
- case QED_LL2_QUEUE:
+ case QED_LL2_RAM_QUEUE:
mfw_res_id = RESOURCE_LL2_QUEUE_E;
break;
+ case QED_LL2_CTX_QUEUE:
+ mfw_res_id = RESOURCE_LL2_CQS_E;
+ break;
case QED_RDMA_CNQ_RAM:
case QED_CMDQS_CQS:
/* CNQ/CMDQS are the same resource */
diff --git a/include/linux/qed/common_hsi.h b/include/linux/qed/common_hsi.h
index 03f59a28fefd..358566f1ff64 100644
--- a/include/linux/qed/common_hsi.h
+++ b/include/linux/qed/common_hsi.h
@@ -105,8 +105,15 @@

#define CORE_SPQE_PAGE_SIZE_BYTES 4096

-#define MAX_NUM_LL2_RX_QUEUES 48
-#define MAX_NUM_LL2_TX_STATS_COUNTERS 48
+/* Number of LL2 RAM based queues */
+#define MAX_NUM_LL2_RX_RAM_QUEUES 32
+
+/* Number of LL2 context based queues */
+#define MAX_NUM_LL2_RX_CTX_QUEUES 208
+#define MAX_NUM_LL2_RX_QUEUES \
+ (MAX_NUM_LL2_RX_RAM_QUEUES + MAX_NUM_LL2_RX_CTX_QUEUES)
+
+#define MAX_NUM_LL2_TX_STATS_COUNTERS 48

#define FW_MAJOR_VERSION 8
#define FW_MINOR_VERSION 37
@@ -340,6 +347,10 @@
#define DQ_PWM_OFFSET_TCM_ROCE_RQ_PROD (DQ_PWM_OFFSET_TCM16_BASE + 1)
#define DQ_PWM_OFFSET_TCM_IWARP_RQ_PROD (DQ_PWM_OFFSET_TCM16_BASE + 3)

+/* DQ_DEMS_AGG_VAL_BASE */
+#define DQ_PWM_OFFSET_TCM_LL2_PROD_UPDATE \
+ (DQ_PWM_OFFSET_TCM32_BASE + DQ_TCM_AGG_VAL_SEL_REG9 - 4)
+
#define DQ_REGION_SHIFT (12)

/* DPM */
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index b5db1ee96d78..9bcb2f419004 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -463,7 +463,7 @@ enum qed_db_rec_space {

#define DIRECT_REG_RD(reg_addr) readl((void __iomem *)(reg_addr))

-#define DIRECT_REG_WR64(reg_addr, val) writeq((u32)val, \
+#define DIRECT_REG_WR64(reg_addr, val) writeq((u64)val, \
(void __iomem *)(reg_addr))

#define QED_COALESCE_MAX 0x1FF
@@ -1177,6 +1177,8 @@ struct qed_common_ops {
#define GET_FIELD(value, name) \
(((value) >> (name ## _SHIFT)) & name ## _MASK)

+#define DB_ADDR_SHIFT(addr) ((addr) << DB_PWM_ADDR_OFFSET_SHIFT)
+
/* Debug print definitions */
#define DP_ERR(cdev, fmt, ...) \
do { \
diff --git a/include/linux/qed/qed_ll2_if.h b/include/linux/qed/qed_ll2_if.h
index 5eb022953aca..1313c34d9a68 100644
--- a/include/linux/qed/qed_ll2_if.h
+++ b/include/linux/qed/qed_ll2_if.h
@@ -52,6 +52,12 @@ enum qed_ll2_conn_type {
QED_LL2_TYPE_ROCE,
QED_LL2_TYPE_IWARP,
QED_LL2_TYPE_RESERVED3,
+ MAX_QED_LL2_CONN_TYPE
+};
+
+enum qed_ll2_rx_conn_type {
+ QED_LL2_RX_TYPE_LEGACY,
+ QED_LL2_RX_TYPE_CTX,
MAX_QED_LL2_RX_CONN_TYPE
};

@@ -165,6 +171,7 @@ struct qed_ll2_cbs {
};

struct qed_ll2_acquire_data_inputs {
+ enum qed_ll2_rx_conn_type rx_conn_type;
enum qed_ll2_conn_type conn_type;
u16 mtu;
u16 rx_num_desc;
--
2.14.5