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, 55 insertions, 17 deletions

diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
index 14a6d1b..39abac6 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
@@ -51,6 +51,9 @@
 #include "nfp_cpp.h"
 #include "nfp_nsp.h"
 
+#define NFP_NSP_TIMEOUT_DEFAULT	30
+#define NFP_NSP_TIMEOUT_BOOT	30
+
 /* Offsets relative to the CSR base */
 #define NSP_STATUS		0x00
 #define   NSP_STATUS_MAGIC	GENMASK_ULL(63, 48)
@@ -93,6 +96,7 @@ enum nfp_nsp_cmd {
 	SPCODE_FW_LOAD		= 6, /* Load fw from buffer, len in option */
 	SPCODE_ETH_RESCAN	= 7, /* Rescan ETHs, write ETH_TABLE to buf */
 	SPCODE_ETH_CONTROL	= 8, /* Update media config from buffer */
+	SPCODE_NSP_WRITE_FLASH	= 11, /* Load and flash image from buffer */
 	SPCODE_NSP_SENSORS	= 12, /* Read NSP sensor(s) */
 	SPCODE_NSP_IDENTIFY	= 13, /* Read NSP version */
 };
@@ -260,10 +264,10 @@ u16 nfp_nsp_get_abi_ver_minor(struct nfp_nsp *state)
 }
 
 static int
-nfp_nsp_wait_reg(struct nfp_cpp *cpp, u64 *reg,
-		 u32 nsp_cpp, u64 addr, u64 mask, u64 val)
+nfp_nsp_wait_reg(struct nfp_cpp *cpp, u64 *reg, u32 nsp_cpp, u64 addr,
+		 u64 mask, u64 val, u32 timeout_sec)
 {
-	const unsigned long wait_until = jiffies + 30 * HZ;
+	const unsigned long wait_until = jiffies + timeout_sec * HZ;
 	int err;
 
 	for (;;) {
@@ -285,12 +289,13 @@ nfp_nsp_wait_reg(struct nfp_cpp *cpp, u64 *reg,
 }
 
 /**
- * nfp_nsp_command() - Execute a command on the NFP Service Processor
+ * __nfp_nsp_command() - Execute a command on the NFP Service Processor
  * @state:	NFP SP state
  * @code:	NFP SP Command Code
  * @option:	NFP SP Command Argument
  * @buff_cpp:	NFP SP Buffer CPP Address info
  * @buff_addr:	NFP SP Buffer Host address
+ * @timeout_sec:Timeout value to wait for completion in seconds
  *
  * Return: 0 for success with no result
  *
@@ -300,10 +305,11 @@ nfp_nsp_wait_reg(struct nfp_cpp *cpp, u64 *reg,
  *	-ENODEV if the NSP is not a supported model
  *	-EBUSY if the NSP is stuck
  *	-EINTR if interrupted while waiting for completion
- *	-ETIMEDOUT if the NSP took longer than 30 seconds to complete
+ *	-ETIMEDOUT if the NSP took longer than @timeout_sec seconds to complete
  */
-static int nfp_nsp_command(struct nfp_nsp *state, u16 code, u32 option,
-			   u32 buff_cpp, u64 buff_addr)
+static int
+__nfp_nsp_command(struct nfp_nsp *state, u16 code, u32 option, u32 buff_cpp,
+		  u64 buff_addr, u32 timeout_sec)
 {
 	u64 reg, ret_val, nsp_base, nsp_buffer, nsp_status, nsp_command;
 	struct nfp_cpp *cpp = state->cpp;
@@ -341,8 +347,8 @@ static int nfp_nsp_command(struct nfp_nsp *state, u16 code, u32 option,
 		return err;
 
 	/* Wait for NSP_COMMAND_START to go to 0 */
-	err = nfp_nsp_wait_reg(cpp, &reg,
-			       nsp_cpp, nsp_command, NSP_COMMAND_START, 0);
+	err = nfp_nsp_wait_reg(cpp, &reg, nsp_cpp, nsp_command,
+			       NSP_COMMAND_START, 0, NFP_NSP_TIMEOUT_DEFAULT);
 	if (err) {
 		nfp_err(cpp, "Error %d waiting for code 0x%04x to start\n",
 			err, code);
@@ -350,8 +356,8 @@ static int nfp_nsp_command(struct nfp_nsp *state, u16 code, u32 option,
 	}
 
 	/* Wait for NSP_STATUS_BUSY to go to 0 */
-	err = nfp_nsp_wait_reg(cpp, &reg,
-			       nsp_cpp, nsp_status, NSP_STATUS_BUSY, 0);
+	err = nfp_nsp_wait_reg(cpp, &reg, nsp_cpp, nsp_status, NSP_STATUS_BUSY,
+			       0, timeout_sec);
 	if (err) {
 		nfp_err(cpp, "Error %d waiting for code 0x%04x to complete\n",
 			err, code);
@@ -374,9 +380,18 @@ static int nfp_nsp_command(struct nfp_nsp *state, u16 code, u32 option,
 	return ret_val;
 }
 
-static int nfp_nsp_command_buf(struct nfp_nsp *nsp, u16 code, u32 option,
-			       const void *in_buf, unsigned int in_size,
-			       void *out_buf, unsigned int out_size)
+static int
+nfp_nsp_command(struct nfp_nsp *state, u16 code, u32 option, u32 buff_cpp,
+		u64 buff_addr)
+{
+	return __nfp_nsp_command(state, code, option, buff_cpp, buff_addr,
+				 NFP_NSP_TIMEOUT_DEFAULT);
+}
+
+static int
+__nfp_nsp_command_buf(struct nfp_nsp *nsp, u16 code, u32 option,
+		      const void *in_buf, unsigned int in_size, void *out_buf,
+		      unsigned int out_size, u32 timeout_sec)
 {
 	struct nfp_cpp *cpp = nsp->cpp;
 	unsigned int max_size;
@@ -429,7 +444,8 @@ static int nfp_nsp_command_buf(struct nfp_nsp *nsp, u16 code, u32 option,
 			return err;
 	}
 
-	ret = nfp_nsp_command(nsp, code, option, cpp_id, cpp_buf);
+	ret = __nfp_nsp_command(nsp, code, option, cpp_id, cpp_buf,
+				timeout_sec);
 	if (ret < 0)
 		return ret;
 
@@ -442,12 +458,23 @@ static int nfp_nsp_command_buf(struct nfp_nsp *nsp, u16 code, u32 option,
 	return ret;
 }
 
+static int
+nfp_nsp_command_buf(struct nfp_nsp *nsp, u16 code, u32 option,
+		    const void *in_buf, unsigned int in_size, void *out_buf,
+		    unsigned int out_size)
+{
+	return __nfp_nsp_command_buf(nsp, code, option, in_buf, in_size,
+				     out_buf, out_size,
+				     NFP_NSP_TIMEOUT_DEFAULT);
+}
+
 int nfp_nsp_wait(struct nfp_nsp *state)
 {
-	const unsigned long wait_until = jiffies + 30 * HZ;
+	const unsigned long wait_until = jiffies + NFP_NSP_TIMEOUT_BOOT * HZ;
 	int err;
 
-	nfp_dbg(state->cpp, "Waiting for NSP to respond (30 sec max).\n");
+	nfp_dbg(state->cpp, "Waiting for NSP to respond (%u sec max).\n",
+		NFP_NSP_TIMEOUT_BOOT);
 
 	for (;;) {
 		const unsigned long start_time = jiffies;
@@ -488,6 +515,17 @@ int nfp_nsp_load_fw(struct nfp_nsp *state, const struct firmware *fw)
 				   fw->size, NULL, 0);
 }
 
+int nfp_nsp_write_flash(struct nfp_nsp *state, const struct firmware *fw)
+{
+	/* The flash time is specified to take a maximum of 70s so we add an
+	 * additional factor to this spec time.
+	 */
+	u32 timeout_sec = 2.5 * 70;
+
+	return __nfp_nsp_command_buf(state, SPCODE_NSP_WRITE_FLASH, fw->size,
+				     fw->data, fw->size, NULL, 0, timeout_sec);
+}
+
 int nfp_nsp_read_eth_table(struct nfp_nsp *state, void *buf, unsigned int size)
 {
 	return nfp_nsp_command_buf(state, SPCODE_ETH_RESCAN, size, NULL, 0,