Merge branch 'qed-LL2-fixes'
Michal Kalderon says: ==================== qed: LL2 fixes This series fixes some issues in ll2 related to synchronization and resource freeing ==================== Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
commit
fee8fb952d
|
@ -292,6 +292,7 @@ static void qed_ll2_txq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
|
|||
struct qed_ll2_tx_packet *p_pkt = NULL;
|
||||
struct qed_ll2_info *p_ll2_conn;
|
||||
struct qed_ll2_tx_queue *p_tx;
|
||||
unsigned long flags = 0;
|
||||
dma_addr_t tx_frag;
|
||||
|
||||
p_ll2_conn = qed_ll2_handle_sanity_inactive(p_hwfn, connection_handle);
|
||||
|
@ -300,6 +301,7 @@ static void qed_ll2_txq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
|
|||
|
||||
p_tx = &p_ll2_conn->tx_queue;
|
||||
|
||||
spin_lock_irqsave(&p_tx->lock, flags);
|
||||
while (!list_empty(&p_tx->active_descq)) {
|
||||
p_pkt = list_first_entry(&p_tx->active_descq,
|
||||
struct qed_ll2_tx_packet, list_entry);
|
||||
|
@ -309,6 +311,7 @@ static void qed_ll2_txq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
|
|||
list_del(&p_pkt->list_entry);
|
||||
b_last_packet = list_empty(&p_tx->active_descq);
|
||||
list_add_tail(&p_pkt->list_entry, &p_tx->free_descq);
|
||||
spin_unlock_irqrestore(&p_tx->lock, flags);
|
||||
if (p_ll2_conn->input.conn_type == QED_LL2_TYPE_OOO) {
|
||||
struct qed_ooo_buffer *p_buffer;
|
||||
|
||||
|
@ -328,7 +331,9 @@ static void qed_ll2_txq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
|
|||
b_last_frag,
|
||||
b_last_packet);
|
||||
}
|
||||
spin_lock_irqsave(&p_tx->lock, flags);
|
||||
}
|
||||
spin_unlock_irqrestore(&p_tx->lock, flags);
|
||||
}
|
||||
|
||||
static int qed_ll2_txq_completion(struct qed_hwfn *p_hwfn, void *p_cookie)
|
||||
|
@ -556,6 +561,7 @@ static void qed_ll2_rxq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
|
|||
struct qed_ll2_info *p_ll2_conn = NULL;
|
||||
struct qed_ll2_rx_packet *p_pkt = NULL;
|
||||
struct qed_ll2_rx_queue *p_rx;
|
||||
unsigned long flags = 0;
|
||||
|
||||
p_ll2_conn = qed_ll2_handle_sanity_inactive(p_hwfn, connection_handle);
|
||||
if (!p_ll2_conn)
|
||||
|
@ -563,13 +569,14 @@ static void qed_ll2_rxq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
|
|||
|
||||
p_rx = &p_ll2_conn->rx_queue;
|
||||
|
||||
spin_lock_irqsave(&p_rx->lock, flags);
|
||||
while (!list_empty(&p_rx->active_descq)) {
|
||||
p_pkt = list_first_entry(&p_rx->active_descq,
|
||||
struct qed_ll2_rx_packet, list_entry);
|
||||
if (!p_pkt)
|
||||
break;
|
||||
|
||||
list_move_tail(&p_pkt->list_entry, &p_rx->free_descq);
|
||||
spin_unlock_irqrestore(&p_rx->lock, flags);
|
||||
|
||||
if (p_ll2_conn->input.conn_type == QED_LL2_TYPE_OOO) {
|
||||
struct qed_ooo_buffer *p_buffer;
|
||||
|
@ -588,7 +595,30 @@ static void qed_ll2_rxq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
|
|||
cookie,
|
||||
rx_buf_addr, b_last);
|
||||
}
|
||||
spin_lock_irqsave(&p_rx->lock, flags);
|
||||
}
|
||||
spin_unlock_irqrestore(&p_rx->lock, flags);
|
||||
}
|
||||
|
||||
static bool
|
||||
qed_ll2_lb_rxq_handler_slowpath(struct qed_hwfn *p_hwfn,
|
||||
struct core_rx_slow_path_cqe *p_cqe)
|
||||
{
|
||||
struct ooo_opaque *iscsi_ooo;
|
||||
u32 cid;
|
||||
|
||||
if (p_cqe->ramrod_cmd_id != CORE_RAMROD_RX_QUEUE_FLUSH)
|
||||
return false;
|
||||
|
||||
iscsi_ooo = (struct ooo_opaque *)&p_cqe->opaque_data;
|
||||
if (iscsi_ooo->ooo_opcode != TCP_EVENT_DELETE_ISLES)
|
||||
return false;
|
||||
|
||||
/* Need to make a flush */
|
||||
cid = le32_to_cpu(iscsi_ooo->cid);
|
||||
qed_ooo_release_connection_isles(p_hwfn, p_hwfn->p_ooo_info, cid);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static int qed_ll2_lb_rxq_handler(struct qed_hwfn *p_hwfn,
|
||||
|
@ -617,6 +647,11 @@ static int qed_ll2_lb_rxq_handler(struct qed_hwfn *p_hwfn,
|
|||
cq_old_idx = qed_chain_get_cons_idx(&p_rx->rcq_chain);
|
||||
cqe_type = cqe->rx_cqe_sp.type;
|
||||
|
||||
if (cqe_type == CORE_RX_CQE_TYPE_SLOW_PATH)
|
||||
if (qed_ll2_lb_rxq_handler_slowpath(p_hwfn,
|
||||
&cqe->rx_cqe_sp))
|
||||
continue;
|
||||
|
||||
if (cqe_type != CORE_RX_CQE_TYPE_REGULAR) {
|
||||
DP_NOTICE(p_hwfn,
|
||||
"Got a non-regular LB LL2 completion [type 0x%02x]\n",
|
||||
|
@ -794,6 +829,9 @@ static int qed_ll2_lb_rxq_completion(struct qed_hwfn *p_hwfn, void *p_cookie)
|
|||
struct qed_ll2_info *p_ll2_conn = (struct qed_ll2_info *)p_cookie;
|
||||
int rc;
|
||||
|
||||
if (!QED_LL2_RX_REGISTERED(p_ll2_conn))
|
||||
return 0;
|
||||
|
||||
rc = qed_ll2_lb_rxq_handler(p_hwfn, p_ll2_conn);
|
||||
if (rc)
|
||||
return rc;
|
||||
|
@ -814,6 +852,9 @@ static int qed_ll2_lb_txq_completion(struct qed_hwfn *p_hwfn, void *p_cookie)
|
|||
u16 new_idx = 0, num_bds = 0;
|
||||
int rc;
|
||||
|
||||
if (!QED_LL2_TX_REGISTERED(p_ll2_conn))
|
||||
return 0;
|
||||
|
||||
new_idx = le16_to_cpu(*p_tx->p_fw_cons);
|
||||
num_bds = ((s16)new_idx - (s16)p_tx->bds_idx);
|
||||
|
||||
|
@ -1867,17 +1908,25 @@ int qed_ll2_terminate_connection(void *cxt, u8 connection_handle)
|
|||
|
||||
/* Stop Tx & Rx of connection, if needed */
|
||||
if (QED_LL2_TX_REGISTERED(p_ll2_conn)) {
|
||||
p_ll2_conn->tx_queue.b_cb_registred = false;
|
||||
smp_wmb(); /* Make sure this is seen by ll2_lb_rxq_completion */
|
||||
rc = qed_sp_ll2_tx_queue_stop(p_hwfn, p_ll2_conn);
|
||||
if (rc)
|
||||
goto out;
|
||||
|
||||
qed_ll2_txq_flush(p_hwfn, connection_handle);
|
||||
qed_int_unregister_cb(p_hwfn, p_ll2_conn->tx_queue.tx_sb_index);
|
||||
}
|
||||
|
||||
if (QED_LL2_RX_REGISTERED(p_ll2_conn)) {
|
||||
p_ll2_conn->rx_queue.b_cb_registred = false;
|
||||
smp_wmb(); /* Make sure this is seen by ll2_lb_rxq_completion */
|
||||
rc = qed_sp_ll2_rx_queue_stop(p_hwfn, p_ll2_conn);
|
||||
if (rc)
|
||||
goto out;
|
||||
|
||||
qed_ll2_rxq_flush(p_hwfn, connection_handle);
|
||||
qed_int_unregister_cb(p_hwfn, p_ll2_conn->rx_queue.rx_sb_index);
|
||||
}
|
||||
|
||||
if (p_ll2_conn->input.conn_type == QED_LL2_TYPE_OOO)
|
||||
|
@ -1925,16 +1974,6 @@ void qed_ll2_release_connection(void *cxt, u8 connection_handle)
|
|||
if (!p_ll2_conn)
|
||||
return;
|
||||
|
||||
if (QED_LL2_RX_REGISTERED(p_ll2_conn)) {
|
||||
p_ll2_conn->rx_queue.b_cb_registred = false;
|
||||
qed_int_unregister_cb(p_hwfn, p_ll2_conn->rx_queue.rx_sb_index);
|
||||
}
|
||||
|
||||
if (QED_LL2_TX_REGISTERED(p_ll2_conn)) {
|
||||
p_ll2_conn->tx_queue.b_cb_registred = false;
|
||||
qed_int_unregister_cb(p_hwfn, p_ll2_conn->tx_queue.tx_sb_index);
|
||||
}
|
||||
|
||||
kfree(p_ll2_conn->tx_queue.descq_mem);
|
||||
qed_chain_free(p_hwfn->cdev, &p_ll2_conn->tx_queue.txq_chain);
|
||||
|
||||
|
|
Loading…
Reference in a new issue