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

Pull networking updates from David Miller:

 1) Significantly shrink the core networking routing structures. Result
    of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf

 2) Add netdevsim driver for testing various offloads, from Jakub
    Kicinski.

 3) Support cross-chip FDB operations in DSA, from Vivien Didelot.

 4) Add a 2nd listener hash table for TCP, similar to what was done for
    UDP. From Martin KaFai Lau.

 5) Add eBPF based queue selection to tun, from Jason Wang.

 6) Lockless qdisc support, from John Fastabend.

 7) SCTP stream interleave support, from Xin Long.

 8) Smoother TCP receive autotuning, from Eric Dumazet.

 9) Lots of erspan tunneling enhancements, from William Tu.

10) Add true function call support to BPF, from Alexei Starovoitov.

11) Add explicit support for GRO HW offloading, from Michael Chan.

12) Support extack generation in more netlink subsystems. From Alexander
    Aring, Quentin Monnet, and Jakub Kicinski.

13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
    Russell King.

14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.

15) Many improvements and simplifications to the NFP driver bpf JIT,
    from Jakub Kicinski.

16) Support for ipv6 non-equal cost multipath routing, from Ido
    Schimmel.

17) Add resource abstration to devlink, from Arkadi Sharshevsky.

18) Packet scheduler classifier shared filter block support, from Jiri
    Pirko.

19) Avoid locking in act_csum, from Davide Caratti.

20) devinet_ioctl() simplifications from Al viro.

21) More TCP bpf improvements from Lawrence Brakmo.

22) Add support for onlink ipv6 route flag, similar to ipv4, from David
    Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
  tls: Add support for encryption using async offload accelerator
  ip6mr: fix stale iterator
  net/sched: kconfig: Remove blank help texts
  openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
  tcp_nv: fix potential integer overflow in tcpnv_acked
  r8169: fix RTL8168EP take too long to complete driver initialization.
  qmi_wwan: Add support for Quectel EP06
  rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
  ipmr: Fix ptrdiff_t print formatting
  ibmvnic: Wait for device response when changing MAC
  qlcnic: fix deadlock bug
  tcp: release sk_frag.page in tcp_disconnect
  ipv4: Get the address of interface correctly.
  net_sched: gen_estimator: fix lockdep splat
  net: macb: Handle HRESP error
  net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
  ipv6: addrconf: break critical section in addrconf_verify_rtnl()
  ipv6: change route cache aging logic
  i40e/i40evf: Update DESC_NEEDED value to reflect larger value
  bnxt_en: cleanup DIM work on device shutdown
  ...

1 files changed, 110 insertions, 33 deletions

diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index 7689c2ee0d46..76a5cb04e4fe 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -239,8 +239,9 @@ read_nvm_exit:
  *
  * Writes a 16 bit words buffer to the Shadow RAM using the admin command.
  **/
-static i40e_status i40e_read_nvm_aq(struct i40e_hw *hw, u8 module_pointer,
-				    u32 offset, u16 words, void *data,
+static i40e_status i40e_read_nvm_aq(struct i40e_hw *hw,
+				    u8 module_pointer, u32 offset,
+				    u16 words, void *data,
 				    bool last_command)
 {
 	i40e_status ret_code = I40E_ERR_NVM;
@@ -389,7 +390,7 @@ static i40e_status i40e_read_nvm_buffer_aq(struct i40e_hw *hw, u16 offset,
 					   u16 *words, u16 *data)
 {
 	i40e_status ret_code;
-	u16 read_size = *words;
+	u16 read_size;
 	bool last_cmd = false;
 	u16 words_read = 0;
 	u16 i = 0;
@@ -496,7 +497,8 @@ static i40e_status i40e_write_nvm_aq(struct i40e_hw *hw, u8 module_pointer,
 		ret_code = i40e_aq_update_nvm(hw, module_pointer,
 					      2 * offset,  /*bytes*/
 					      2 * words,   /*bytes*/
-					      data, last_command, &cmd_details);
+					      data, last_command, 0,
+					      &cmd_details);
 
 	return ret_code;
 }
@@ -677,6 +679,9 @@ static i40e_status i40e_nvmupd_exec_aq(struct i40e_hw *hw,
 static i40e_status i40e_nvmupd_get_aq_result(struct i40e_hw *hw,
 					     struct i40e_nvm_access *cmd,
 					     u8 *bytes, int *perrno);
+static i40e_status i40e_nvmupd_get_aq_event(struct i40e_hw *hw,
+					    struct i40e_nvm_access *cmd,
+					    u8 *bytes, int *perrno);
 static inline u8 i40e_nvmupd_get_module(u32 val)
 {
 	return (u8)(val & I40E_NVM_MOD_PNT_MASK);
@@ -686,6 +691,12 @@ static inline u8 i40e_nvmupd_get_transaction(u32 val)
 	return (u8)((val & I40E_NVM_TRANS_MASK) >> I40E_NVM_TRANS_SHIFT);
 }
 
+static inline u8 i40e_nvmupd_get_preservation_flags(u32 val)
+{
+	return (u8)((val & I40E_NVM_PRESERVATION_FLAGS_MASK) >>
+		    I40E_NVM_PRESERVATION_FLAGS_SHIFT);
+}
+
 static const char * const i40e_nvm_update_state_str[] = {
 	"I40E_NVMUPD_INVALID",
 	"I40E_NVMUPD_READ_CON",
@@ -703,6 +714,7 @@ static const char * const i40e_nvm_update_state_str[] = {
 	"I40E_NVMUPD_STATUS",
 	"I40E_NVMUPD_EXEC_AQ",
 	"I40E_NVMUPD_GET_AQ_RESULT",
+	"I40E_NVMUPD_GET_AQ_EVENT",
 };
 
 /**
@@ -798,9 +810,9 @@ i40e_status i40e_nvmupd_command(struct i40e_hw *hw,
 		 * the wait info and return before doing anything else
 		 */
 		if (cmd->offset == 0xffff) {
-			i40e_nvmupd_check_wait_event(hw, hw->nvm_wait_opcode);
+			i40e_nvmupd_clear_wait_state(hw);
 			status = 0;
-			goto exit;
+			break;
 		}
 
 		status = I40E_ERR_NOT_READY;
@@ -815,7 +827,7 @@ i40e_status i40e_nvmupd_command(struct i40e_hw *hw,
 		*perrno = -ESRCH;
 		break;
 	}
-exit:
+
 	mutex_unlock(&hw->aq.arq_mutex);
 	return status;
 }
@@ -944,6 +956,10 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
 		status = i40e_nvmupd_get_aq_result(hw, cmd, bytes, perrno);
 		break;
 
+	case I40E_NVMUPD_GET_AQ_EVENT:
+		status = i40e_nvmupd_get_aq_event(hw, cmd, bytes, perrno);
+		break;
+
 	default:
 		i40e_debug(hw, I40E_DEBUG_NVM,
 			   "NVMUPD: bad cmd %s in init state\n",
@@ -1118,38 +1134,53 @@ retry:
 }
 
 /**
- * i40e_nvmupd_check_wait_event - handle NVM update operation events
+ * i40e_nvmupd_clear_wait_state - clear wait state on hw
  * @hw: pointer to the hardware structure
- * @opcode: the event that just happened
  **/
-void i40e_nvmupd_check_wait_event(struct i40e_hw *hw, u16 opcode)
+void i40e_nvmupd_clear_wait_state(struct i40e_hw *hw)
 {
-	if (opcode == hw->nvm_wait_opcode) {
-		i40e_debug(hw, I40E_DEBUG_NVM,
-			   "NVMUPD: clearing wait on opcode 0x%04x\n", opcode);
-		if (hw->nvm_release_on_done) {
-			i40e_release_nvm(hw);
-			hw->nvm_release_on_done = false;
-		}
-		hw->nvm_wait_opcode = 0;
+	i40e_debug(hw, I40E_DEBUG_NVM,
+		   "NVMUPD: clearing wait on opcode 0x%04x\n",
+		   hw->nvm_wait_opcode);
 
-		if (hw->aq.arq_last_status) {
-			hw->nvmupd_state = I40E_NVMUPD_STATE_ERROR;
-			return;
-		}
+	if (hw->nvm_release_on_done) {
+		i40e_release_nvm(hw);
+		hw->nvm_release_on_done = false;
+	}
+	hw->nvm_wait_opcode = 0;
 
-		switch (hw->nvmupd_state) {
-		case I40E_NVMUPD_STATE_INIT_WAIT:
-			hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
-			break;
+	if (hw->aq.arq_last_status) {
+		hw->nvmupd_state = I40E_NVMUPD_STATE_ERROR;
+		return;
+	}
 
-		case I40E_NVMUPD_STATE_WRITE_WAIT:
-			hw->nvmupd_state = I40E_NVMUPD_STATE_WRITING;
-			break;
+	switch (hw->nvmupd_state) {
+	case I40E_NVMUPD_STATE_INIT_WAIT:
+		hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
+		break;
 
-		default:
-			break;
-		}
+	case I40E_NVMUPD_STATE_WRITE_WAIT:
+		hw->nvmupd_state = I40E_NVMUPD_STATE_WRITING;
+		break;
+
+	default:
+		break;
+	}
+}
+
+/**
+ * i40e_nvmupd_check_wait_event - handle NVM update operation events
+ * @hw: pointer to the hardware structure
+ * @opcode: the event that just happened
+ **/
+void i40e_nvmupd_check_wait_event(struct i40e_hw *hw, u16 opcode,
+				  struct i40e_aq_desc *desc)
+{
+	u32 aq_desc_len = sizeof(struct i40e_aq_desc);
+
+	if (opcode == hw->nvm_wait_opcode) {
+		memcpy(&hw->nvm_aq_event_desc, desc, aq_desc_len);
+		i40e_nvmupd_clear_wait_state(hw);
 	}
 }
 
@@ -1205,6 +1236,9 @@ static enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw,
 			else if (module == 0)
 				upd_cmd = I40E_NVMUPD_GET_AQ_RESULT;
 			break;
+		case I40E_NVM_AQE:
+			upd_cmd = I40E_NVMUPD_GET_AQ_EVENT;
+			break;
 		}
 		break;
 
@@ -1267,6 +1301,9 @@ static i40e_status i40e_nvmupd_exec_aq(struct i40e_hw *hw,
 	u32 aq_data_len;
 
 	i40e_debug(hw, I40E_DEBUG_NVM, "NVMUPD: %s\n", __func__);
+	if (cmd->offset == 0xffff)
+		return 0;
+
 	memset(&cmd_details, 0, sizeof(cmd_details));
 	cmd_details.wb_desc = &hw->nvm_wb_desc;
 
@@ -1302,6 +1339,9 @@ static i40e_status i40e_nvmupd_exec_aq(struct i40e_hw *hw,
 		}
 	}
 
+	if (cmd->offset)
+		memset(&hw->nvm_aq_event_desc, 0, aq_desc_len);
+
 	/* and away we go! */
 	status = i40e_asq_send_command(hw, aq_desc, buff,
 				       buff_size, &cmd_details);
@@ -1311,6 +1351,7 @@ static i40e_status i40e_nvmupd_exec_aq(struct i40e_hw *hw,
 			   i40e_stat_str(hw, status),
 			   i40e_aq_str(hw, hw->aq.asq_last_status));
 		*perrno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status);
+		return status;
 	}
 
 	/* should we wait for a followup event? */
@@ -1392,6 +1433,40 @@ static i40e_status i40e_nvmupd_get_aq_result(struct i40e_hw *hw,
 }
 
 /**
+ * i40e_nvmupd_get_aq_event - Get the Admin Queue event from previous exec_aq
+ * @hw: pointer to hardware structure
+ * @cmd: pointer to nvm update command buffer
+ * @bytes: pointer to the data buffer
+ * @perrno: pointer to return error code
+ *
+ * cmd structure contains identifiers and data buffer
+ **/
+static i40e_status i40e_nvmupd_get_aq_event(struct i40e_hw *hw,
+					    struct i40e_nvm_access *cmd,
+					    u8 *bytes, int *perrno)
+{
+	u32 aq_total_len;
+	u32 aq_desc_len;
+
+	i40e_debug(hw, I40E_DEBUG_NVM, "NVMUPD: %s\n", __func__);
+
+	aq_desc_len = sizeof(struct i40e_aq_desc);
+	aq_total_len = aq_desc_len + le16_to_cpu(hw->nvm_aq_event_desc.datalen);
+
+	/* check copylength range */
+	if (cmd->data_size > aq_total_len) {
+		i40e_debug(hw, I40E_DEBUG_NVM,
+			   "%s: copy length %d too big, trimming to %d\n",
+			   __func__, cmd->data_size, aq_total_len);
+		cmd->data_size = aq_total_len;
+	}
+
+	memcpy(bytes, &hw->nvm_aq_event_desc, cmd->data_size);
+
+	return 0;
+}
+
+/**
  * i40e_nvmupd_nvm_read - Read NVM
  * @hw: pointer to hardware structure
  * @cmd: pointer to nvm update command buffer
@@ -1486,18 +1561,20 @@ static i40e_status i40e_nvmupd_nvm_write(struct i40e_hw *hw,
 	i40e_status status = 0;
 	struct i40e_asq_cmd_details cmd_details;
 	u8 module, transaction;
+	u8 preservation_flags;
 	bool last;
 
 	transaction = i40e_nvmupd_get_transaction(cmd->config);
 	module = i40e_nvmupd_get_module(cmd->config);
 	last = (transaction & I40E_NVM_LCB);
+	preservation_flags = i40e_nvmupd_get_preservation_flags(cmd->config);
 
 	memset(&cmd_details, 0, sizeof(cmd_details));
 	cmd_details.wb_desc = &hw->nvm_wb_desc;
 
 	status = i40e_aq_update_nvm(hw, module, cmd->offset,
 				    (u16)cmd->data_size, bytes, last,
-				    &cmd_details);
+				    preservation_flags, &cmd_details);
 	if (status) {
 		i40e_debug(hw, I40E_DEBUG_NVM,
 			   "i40e_nvmupd_nvm_write mod 0x%x off 0x%x len 0x%x\n",