Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from David Miller:

 1) Allow setting bluetooth L2CAP modes via socket option, from Luiz
    Augusto von Dentz.

 2) Add GSO partial support to igc, from Sasha Neftin.

 3) Several cleanups and improvements to r8169 from Heiner Kallweit.

 4) Add IF_OPER_TESTING link state and use it when ethtool triggers a
    device self-test. From Andrew Lunn.

 5) Start moving away from custom driver versions, use the globally
    defined kernel version instead, from Leon Romanovsky.

 6) Support GRO vis gro_cells in DSA layer, from Alexander Lobakin.

 7) Allow hard IRQ deferral during NAPI, from Eric Dumazet.

 8) Add sriov and vf support to hinic, from Luo bin.

 9) Support Media Redundancy Protocol (MRP) in the bridging code, from
    Horatiu Vultur.

10) Support netmap in the nft_nat code, from Pablo Neira Ayuso.

11) Allow UDPv6 encapsulation of ESP in the ipsec code, from Sabrina
    Dubroca. Also add ipv6 support for espintcp.

12) Lots of ReST conversions of the networking documentation, from Mauro
    Carvalho Chehab.

13) Support configuration of ethtool rxnfc flows in bcmgenet driver,
    from Doug Berger.

14) Allow to dump cgroup id and filter by it in inet_diag code, from
    Dmitry Yakunin.

15) Add infrastructure to export netlink attribute policies to
    userspace, from Johannes Berg.

16) Several optimizations to sch_fq scheduler, from Eric Dumazet.

17) Fallback to the default qdisc if qdisc init fails because otherwise
    a packet scheduler init failure will make a device inoperative. From
    Jesper Dangaard Brouer.

18) Several RISCV bpf jit optimizations, from Luke Nelson.

19) Correct the return type of the ->ndo_start_xmit() method in several
    drivers, it's netdev_tx_t but many drivers were using
    'int'. From Yunjian Wang.

20) Add an ethtool interface for PHY master/slave config, from Oleksij
    Rempel.

21) Add BPF iterators, from Yonghang Song.

22) Add cable test infrastructure, including ethool interfaces, from
    Andrew Lunn. Marvell PHY driver is the first to support this
    facility.

23) Remove zero-length arrays all over, from Gustavo A. R. Silva.

24) Calculate and maintain an explicit frame size in XDP, from Jesper
    Dangaard Brouer.

25) Add CAP_BPF, from Alexei Starovoitov.

26) Support terse dumps in the packet scheduler, from Vlad Buslov.

27) Support XDP_TX bulking in dpaa2 driver, from Ioana Ciornei.

28) Add devm_register_netdev(), from Bartosz Golaszewski.

29) Minimize qdisc resets, from Cong Wang.

30) Get rid of kernel_getsockopt and kernel_setsockopt in order to
    eliminate set_fs/get_fs calls. From Christoph Hellwig.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2517 commits)
  selftests: net: ip_defrag: ignore EPERM
  net_failover: fixed rollback in net_failover_open()
  Revert "tipc: Fix potential tipc_aead refcnt leak in tipc_crypto_rcv"
  Revert "tipc: Fix potential tipc_node refcnt leak in tipc_rcv"
  vmxnet3: allow rx flow hash ops only when rss is enabled
  hinic: add set_channels ethtool_ops support
  selftests/bpf: Add a default $(CXX) value
  tools/bpf: Don't use $(COMPILE.c)
  bpf, selftests: Use bpf_probe_read_kernel
  s390/bpf: Use bcr 0,%0 as tail call nop filler
  s390/bpf: Maintain 8-byte stack alignment
  selftests/bpf: Fix verifier test
  selftests/bpf: Fix sample_cnt shared between two threads
  bpf, selftests: Adapt cls_redirect to call csum_level helper
  bpf: Add csum_level helper for fixing up csum levels
  bpf: Fix up bpf_skb_adjust_room helper's skb csum setting
  sfc: add missing annotation for efx_ef10_try_update_nic_stats_vf()
  crypto/chtls: IPv6 support for inline TLS
  Crypto/chcr: Fixes a coccinile check error
  Crypto/chcr: Fixes compilations warnings
  ...

1 files changed, 102 insertions, 78 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_controlq.c b/drivers/net/ethernet/intel/ice/ice_controlq.c
index dd946866d7b8..1e18021aa073 100644
--- a/drivers/net/ethernet/intel/ice/ice_controlq.c
+++ b/drivers/net/ethernet/intel/ice/ice_controlq.c
@@ -12,6 +12,7 @@ do {								\
 	(qinfo)->sq.bal = prefix##_ATQBAL;			\
 	(qinfo)->sq.len_mask = prefix##_ATQLEN_ATQLEN_M;	\
 	(qinfo)->sq.len_ena_mask = prefix##_ATQLEN_ATQENABLE_M;	\
+	(qinfo)->sq.len_crit_mask = prefix##_ATQLEN_ATQCRIT_M;	\
 	(qinfo)->sq.head_mask = prefix##_ATQH_ATQH_M;		\
 	(qinfo)->rq.head = prefix##_ARQH;			\
 	(qinfo)->rq.tail = prefix##_ARQT;			\
@@ -20,6 +21,7 @@ do {								\
 	(qinfo)->rq.bal = prefix##_ARQBAL;			\
 	(qinfo)->rq.len_mask = prefix##_ARQLEN_ARQLEN_M;	\
 	(qinfo)->rq.len_ena_mask = prefix##_ARQLEN_ARQENABLE_M;	\
+	(qinfo)->rq.len_crit_mask = prefix##_ARQLEN_ARQCRIT_M;	\
 	(qinfo)->rq.head_mask = prefix##_ARQH_ARQH_M;		\
 } while (0)
 
@@ -199,7 +201,9 @@ unwind_alloc_rq_bufs:
 		cq->rq.r.rq_bi[i].pa = 0;
 		cq->rq.r.rq_bi[i].size = 0;
 	}
+	cq->rq.r.rq_bi = NULL;
 	devm_kfree(ice_hw_to_dev(hw), cq->rq.dma_head);
+	cq->rq.dma_head = NULL;
 
 	return ICE_ERR_NO_MEMORY;
 }
@@ -245,7 +249,9 @@ unwind_alloc_sq_bufs:
 		cq->sq.r.sq_bi[i].pa = 0;
 		cq->sq.r.sq_bi[i].size = 0;
 	}
+	cq->sq.r.sq_bi = NULL;
 	devm_kfree(ice_hw_to_dev(hw), cq->sq.dma_head);
+	cq->sq.dma_head = NULL;
 
 	return ICE_ERR_NO_MEMORY;
 }
@@ -304,6 +310,28 @@ ice_cfg_rq_regs(struct ice_hw *hw, struct ice_ctl_q_info *cq)
 	return 0;
 }
 
+#define ICE_FREE_CQ_BUFS(hw, qi, ring)					\
+do {									\
+	int i;								\
+	/* free descriptors */						\
+	if ((qi)->ring.r.ring##_bi)					\
+		for (i = 0; i < (qi)->num_##ring##_entries; i++)	\
+			if ((qi)->ring.r.ring##_bi[i].pa) {		\
+				dmam_free_coherent(ice_hw_to_dev(hw),	\
+					(qi)->ring.r.ring##_bi[i].size,	\
+					(qi)->ring.r.ring##_bi[i].va,	\
+					(qi)->ring.r.ring##_bi[i].pa);	\
+					(qi)->ring.r.ring##_bi[i].va = NULL;\
+					(qi)->ring.r.ring##_bi[i].pa = 0;\
+					(qi)->ring.r.ring##_bi[i].size = 0;\
+		}							\
+	/* free the buffer info list */					\
+	if ((qi)->ring.cmd_buf)						\
+		devm_kfree(ice_hw_to_dev(hw), (qi)->ring.cmd_buf);	\
+	/* free DMA head */						\
+	devm_kfree(ice_hw_to_dev(hw), (qi)->ring.dma_head);		\
+} while (0)
+
 /**
  * ice_init_sq - main initialization routine for Control ATQ
  * @hw: pointer to the hardware structure
@@ -357,6 +385,7 @@ static enum ice_status ice_init_sq(struct ice_hw *hw, struct ice_ctl_q_info *cq)
 	goto init_ctrlq_exit;
 
 init_ctrlq_free_rings:
+	ICE_FREE_CQ_BUFS(hw, cq, sq);
 	ice_free_cq_ring(hw, &cq->sq);
 
 init_ctrlq_exit:
@@ -416,33 +445,13 @@ static enum ice_status ice_init_rq(struct ice_hw *hw, struct ice_ctl_q_info *cq)
 	goto init_ctrlq_exit;
 
 init_ctrlq_free_rings:
+	ICE_FREE_CQ_BUFS(hw, cq, rq);
 	ice_free_cq_ring(hw, &cq->rq);
 
 init_ctrlq_exit:
 	return ret_code;
 }
 
-#define ICE_FREE_CQ_BUFS(hw, qi, ring)					\
-do {									\
-	int i;								\
-	/* free descriptors */						\
-	for (i = 0; i < (qi)->num_##ring##_entries; i++)		\
-		if ((qi)->ring.r.ring##_bi[i].pa) {			\
-			dmam_free_coherent(ice_hw_to_dev(hw),		\
-					   (qi)->ring.r.ring##_bi[i].size,\
-					   (qi)->ring.r.ring##_bi[i].va,\
-					   (qi)->ring.r.ring##_bi[i].pa);\
-			(qi)->ring.r.ring##_bi[i].va = NULL;		\
-			(qi)->ring.r.ring##_bi[i].pa = 0;		\
-			(qi)->ring.r.ring##_bi[i].size = 0;		\
-		}							\
-	/* free the buffer info list */					\
-	if ((qi)->ring.cmd_buf)						\
-		devm_kfree(ice_hw_to_dev(hw), (qi)->ring.cmd_buf);	\
-	/* free DMA head */						\
-	devm_kfree(ice_hw_to_dev(hw), (qi)->ring.dma_head);		\
-} while (0)
-
 /**
  * ice_shutdown_sq - shutdown the Control ATQ
  * @hw: pointer to the hardware structure
@@ -635,6 +644,50 @@ init_ctrlq_free_sq:
 }
 
 /**
+ * ice_shutdown_ctrlq - shutdown routine for any control queue
+ * @hw: pointer to the hardware structure
+ * @q_type: specific Control queue type
+ *
+ * NOTE: this function does not destroy the control queue locks.
+ */
+static void ice_shutdown_ctrlq(struct ice_hw *hw, enum ice_ctl_q q_type)
+{
+	struct ice_ctl_q_info *cq;
+
+	switch (q_type) {
+	case ICE_CTL_Q_ADMIN:
+		cq = &hw->adminq;
+		if (ice_check_sq_alive(hw, cq))
+			ice_aq_q_shutdown(hw, true);
+		break;
+	case ICE_CTL_Q_MAILBOX:
+		cq = &hw->mailboxq;
+		break;
+	default:
+		return;
+	}
+
+	ice_shutdown_sq(hw, cq);
+	ice_shutdown_rq(hw, cq);
+}
+
+/**
+ * ice_shutdown_all_ctrlq - shutdown routine for all control queues
+ * @hw: pointer to the hardware structure
+ *
+ * NOTE: this function does not destroy the control queue locks. The driver
+ * may call this at runtime to shutdown and later restart control queues, such
+ * as in response to a reset event.
+ */
+void ice_shutdown_all_ctrlq(struct ice_hw *hw)
+{
+	/* Shutdown FW admin queue */
+	ice_shutdown_ctrlq(hw, ICE_CTL_Q_ADMIN);
+	/* Shutdown PF-VF Mailbox */
+	ice_shutdown_ctrlq(hw, ICE_CTL_Q_MAILBOX);
+}
+
+/**
  * ice_init_all_ctrlq - main initialization routine for all control queues
  * @hw: pointer to the hardware structure
  *
@@ -649,17 +702,27 @@ init_ctrlq_free_sq:
  */
 enum ice_status ice_init_all_ctrlq(struct ice_hw *hw)
 {
-	enum ice_status ret_code;
+	enum ice_status status;
+	u32 retry = 0;
 
 	/* Init FW admin queue */
-	ret_code = ice_init_ctrlq(hw, ICE_CTL_Q_ADMIN);
-	if (ret_code)
-		return ret_code;
+	do {
+		status = ice_init_ctrlq(hw, ICE_CTL_Q_ADMIN);
+		if (status)
+			return status;
 
-	ret_code = ice_init_check_adminq(hw);
-	if (ret_code)
-		return ret_code;
+		status = ice_init_check_adminq(hw);
+		if (status != ICE_ERR_AQ_FW_CRITICAL)
+			break;
+
+		ice_debug(hw, ICE_DBG_AQ_MSG,
+			  "Retry Admin Queue init due to FW critical error\n");
+		ice_shutdown_ctrlq(hw, ICE_CTL_Q_ADMIN);
+		msleep(ICE_CTL_Q_ADMIN_INIT_MSEC);
+	} while (retry++ < ICE_CTL_Q_ADMIN_INIT_TIMEOUT);
 
+	if (status)
+		return status;
 	/* Init Mailbox queue */
 	return ice_init_ctrlq(hw, ICE_CTL_Q_MAILBOX);
 }
@@ -701,57 +764,12 @@ enum ice_status ice_create_all_ctrlq(struct ice_hw *hw)
 }
 
 /**
- * ice_shutdown_ctrlq - shutdown routine for any control queue
- * @hw: pointer to the hardware structure
- * @q_type: specific Control queue type
- *
- * NOTE: this function does not destroy the control queue locks.
- */
-static void ice_shutdown_ctrlq(struct ice_hw *hw, enum ice_ctl_q q_type)
-{
-	struct ice_ctl_q_info *cq;
-
-	switch (q_type) {
-	case ICE_CTL_Q_ADMIN:
-		cq = &hw->adminq;
-		if (ice_check_sq_alive(hw, cq))
-			ice_aq_q_shutdown(hw, true);
-		break;
-	case ICE_CTL_Q_MAILBOX:
-		cq = &hw->mailboxq;
-		break;
-	default:
-		return;
-	}
-
-	ice_shutdown_sq(hw, cq);
-	ice_shutdown_rq(hw, cq);
-}
-
-/**
- * ice_shutdown_all_ctrlq - shutdown routine for all control queues
- * @hw: pointer to the hardware structure
- *
- * NOTE: this function does not destroy the control queue locks. The driver
- * may call this at runtime to shutdown and later restart control queues, such
- * as in response to a reset event.
- */
-void ice_shutdown_all_ctrlq(struct ice_hw *hw)
-{
-	/* Shutdown FW admin queue */
-	ice_shutdown_ctrlq(hw, ICE_CTL_Q_ADMIN);
-	/* Shutdown PF-VF Mailbox */
-	ice_shutdown_ctrlq(hw, ICE_CTL_Q_MAILBOX);
-}
-
-/**
  * ice_destroy_ctrlq_locks - Destroy locks for a control queue
  * @cq: pointer to the control queue
  *
  * Destroys the send and receive queue locks for a given control queue.
  */
-static void
-ice_destroy_ctrlq_locks(struct ice_ctl_q_info *cq)
+static void ice_destroy_ctrlq_locks(struct ice_ctl_q_info *cq)
 {
 	mutex_destroy(&cq->sq_lock);
 	mutex_destroy(&cq->rq_lock);
@@ -1042,9 +1060,15 @@ ice_sq_send_cmd(struct ice_hw *hw, struct ice_ctl_q_info *cq,
 
 	/* update the error if time out occurred */
 	if (!cmd_completed) {
-		ice_debug(hw, ICE_DBG_AQ_MSG,
-			  "Control Send Queue Writeback timeout.\n");
-		status = ICE_ERR_AQ_TIMEOUT;
+		if (rd32(hw, cq->rq.len) & cq->rq.len_crit_mask ||
+		    rd32(hw, cq->sq.len) & cq->sq.len_crit_mask) {
+			ice_debug(hw, ICE_DBG_AQ_MSG, "Critical FW error.\n");
+			status = ICE_ERR_AQ_FW_CRITICAL;
+		} else {
+			ice_debug(hw, ICE_DBG_AQ_MSG,
+				  "Control Send Queue Writeback timeout.\n");
+			status = ICE_ERR_AQ_TIMEOUT;
+		}
 	}
 
 sq_send_command_error:
@@ -1128,7 +1152,7 @@ ice_clean_rq_elem(struct ice_hw *hw, struct ice_ctl_q_info *cq,
 	}
 	memcpy(&e->desc, desc, sizeof(e->desc));
 	datalen = le16_to_cpu(desc->datalen);
-	e->msg_len = min(datalen, e->buf_len);
+	e->msg_len = min_t(u16, datalen, e->buf_len);
 	if (e->msg_buf && e->msg_len)
 		memcpy(e->msg_buf, cq->rq.r.rq_bi[desc_idx].va, e->msg_len);