Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/jkirsher/net-next-2.6

drivers/net/ixgbe/ixgbe.h

@@ -482,6 +482,17 @@ struct ixgbe_adapter {
 	struct vf_macvlans vf_mvs;
 	struct vf_macvlans *mv_list;
 	bool antispoofing_enabled;
+
+	struct hlist_head fdir_filter_list;
+	union ixgbe_atr_input fdir_mask;
+	int fdir_filter_count;
+};
+
+struct ixgbe_fdir_filter {
+	struct hlist_node fdir_node;
+	union ixgbe_atr_input filter;
+	u16 sw_idx;
+	u16 action;
 };
 
 enum ixbge_state_t {
@@ -543,16 +554,22 @@ extern void ixgbe_alloc_rx_buffers(struct ixgbe_ring *, u16);
 extern void ixgbe_write_eitr(struct ixgbe_q_vector *);
 extern int ethtool_ioctl(struct ifreq *ifr);
 extern s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw);
-extern s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 pballoc);
-extern s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 pballoc);
+extern s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl);
+extern s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl);
 extern s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
 						 union ixgbe_atr_hash_dword input,
 						 union ixgbe_atr_hash_dword common,
                                                  u8 queue);
-extern s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
-                                      union ixgbe_atr_input *input,
-                                      struct ixgbe_atr_input_masks *input_masks,
-                                      u16 soft_id, u8 queue);
+extern s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
+					   union ixgbe_atr_input *input_mask);
+extern s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
+						 union ixgbe_atr_input *input,
+						 u16 soft_id, u8 queue);
+extern s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
+						 union ixgbe_atr_input *input,
+						 u16 soft_id);
+extern void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
+						 union ixgbe_atr_input *mask);
 extern void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter,
                                    struct ixgbe_ring *ring);
 extern void ixgbe_clear_rscctl(struct ixgbe_adapter *adapter,

drivers/net/ixgbe/ixgbe_82599.c

@@ -1107,115 +1107,87 @@ s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
 }
 
 /**
- *  ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
+ *  ixgbe_set_fdir_rxpba_82599 - Initialize Flow Director Rx packet buffer
  *  @hw: pointer to hardware structure
  *  @pballoc: which mode to allocate filters with
  **/
-s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 pballoc)
+static s32 ixgbe_set_fdir_rxpba_82599(struct ixgbe_hw *hw, const u32 pballoc)
 {
-	u32 fdirctrl = 0;
+	u32 fdir_pbsize = hw->mac.rx_pb_size << IXGBE_RXPBSIZE_SHIFT;
+	u32 current_rxpbsize = 0;
 	int i;
 
-	/* Send interrupt when 64 filters are left */
-	fdirctrl |= 4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT;
-
-	/* Set the maximum length per hash bucket to 0xA filters */
-	fdirctrl |= 0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT;
-
+	/* reserve space for Flow Director filters */
 	switch (pballoc) {
-	case IXGBE_FDIR_PBALLOC_64K:
-		/* 8k - 1 signature filters */
-		fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_64K;
+	case IXGBE_FDIR_PBALLOC_256K:
+		fdir_pbsize -= 256 << IXGBE_RXPBSIZE_SHIFT;
 		break;
 	case IXGBE_FDIR_PBALLOC_128K:
-		/* 16k - 1 signature filters */
-		fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_128K;
+		fdir_pbsize -= 128 << IXGBE_RXPBSIZE_SHIFT;
 		break;
-	case IXGBE_FDIR_PBALLOC_256K:
-		/* 32k - 1 signature filters */
-		fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_256K;
+	case IXGBE_FDIR_PBALLOC_64K:
+		fdir_pbsize -= 64 << IXGBE_RXPBSIZE_SHIFT;
 		break;
+	case IXGBE_FDIR_PBALLOC_NONE:
 	default:
-		/* bad value */
-		return IXGBE_ERR_CONFIG;
+		return IXGBE_ERR_PARAM;
 	}
 
-	/* Move the flexible bytes to use the ethertype - shift 6 words */
-	fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT);
+	/* determine current RX packet buffer size */
+	for (i = 0; i < 8; i++)
+		current_rxpbsize += IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i));
 
+	/* if there is already room for the filters do nothing */
+	if (current_rxpbsize <= fdir_pbsize)
+		return 0;
 
-	/* Prime the keys for hashing */
-	IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
-	IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
-
-	/*
-	 * Poll init-done after we write the register.  Estimated times:
-	 *      10G: PBALLOC = 11b, timing is 60us
-	 *       1G: PBALLOC = 11b, timing is 600us
-	 *     100M: PBALLOC = 11b, timing is 6ms
-	 *
-	 *     Multiple these timings by 4 if under full Rx load
-	 *
-	 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
-	 * 1 msec per poll time.  If we're at line rate and drop to 100M, then
-	 * this might not finish in our poll time, but we can live with that
-	 * for now.
-	 */
-	IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
-	IXGBE_WRITE_FLUSH(hw);
-	for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
-		if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
-		                   IXGBE_FDIRCTRL_INIT_DONE)
-			break;
-		usleep_range(1000, 2000);
+	if (current_rxpbsize > hw->mac.rx_pb_size) {
+		/*
+		 * if rxpbsize is greater than max then HW max the Rx buffer
+		 * sizes are unconfigured or misconfigured since HW default is
+		 * to give the full buffer to each traffic class resulting in
+		 * the total size being buffer size 8x actual size
+		 *
+		 * This assumes no DCB since the RXPBSIZE registers appear to
+		 * be unconfigured.
+		 */
+		IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0), fdir_pbsize);
+		for (i = 1; i < 8; i++)
+			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
+	} else {
+		/*
+		 * Since the Rx packet buffer appears to have already been
+		 * configured we need to shrink each packet buffer by enough
+		 * to make room for the filters.  As such we take each rxpbsize
+		 * value and multiply it by a fraction representing the size
+		 * needed over the size we currently have.
+		 *
+		 * We need to reduce fdir_pbsize and current_rxpbsize to
+		 * 1/1024 of their original values in order to avoid
+		 * overflowing the u32 being used to store rxpbsize.
+		 */
+		fdir_pbsize >>= IXGBE_RXPBSIZE_SHIFT;
+		current_rxpbsize >>= IXGBE_RXPBSIZE_SHIFT;
+		for (i = 0; i < 8; i++) {
+			u32 rxpbsize = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i));
+			rxpbsize *= fdir_pbsize;
+			rxpbsize /= current_rxpbsize;
+			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpbsize);
+		}
 	}
-	if (i >= IXGBE_FDIR_INIT_DONE_POLL)
-		hw_dbg(hw, "Flow Director Signature poll time exceeded!\n");
 
 	return 0;
 }
 
 /**
- *  ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
+ *  ixgbe_fdir_enable_82599 - Initialize Flow Director control registers
  *  @hw: pointer to hardware structure
- *  @pballoc: which mode to allocate filters with
+ *  @fdirctrl: value to write to flow director control register
  **/
-s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 pballoc)
+static void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl)
 {
-	u32 fdirctrl = 0;
 	int i;
 
-	/* Send interrupt when 64 filters are left */
-	fdirctrl |= 4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT;
-
-	/* Initialize the drop queue to Rx queue 127 */
-	fdirctrl |= (127 << IXGBE_FDIRCTRL_DROP_Q_SHIFT);
-
-	switch (pballoc) {
-	case IXGBE_FDIR_PBALLOC_64K:
-		/* 2k - 1 perfect filters */
-		fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_64K;
-		break;
-	case IXGBE_FDIR_PBALLOC_128K:
-		/* 4k - 1 perfect filters */
-		fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_128K;
-		break;
-	case IXGBE_FDIR_PBALLOC_256K:
-		/* 8k - 1 perfect filters */
-		fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_256K;
-		break;
-	default:
-		/* bad value */
-		return IXGBE_ERR_CONFIG;
-	}
-
-	/* Turn perfect match filtering on */
-	fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH;
-	fdirctrl |= IXGBE_FDIRCTRL_REPORT_STATUS;
-
-	/* Move the flexible bytes to use the ethertype - shift 6 words */
-	fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT);
-
 	/* Prime the keys for hashing */
 	IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
 	IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
@@ -1233,10 +1205,6 @@ s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 pballoc)
 	 * this might not finish in our poll time, but we can live with that
 	 * for now.
 	 */
-
-	/* Set the maximum length per hash bucket to 0xA filters */
-	fdirctrl |= (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT);
-
 	IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
 	IXGBE_WRITE_FLUSH(hw);
 	for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
@@ -1245,101 +1213,77 @@ s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 pballoc)
 			break;
 		usleep_range(1000, 2000);
 	}
-	if (i >= IXGBE_FDIR_INIT_DONE_POLL)
-		hw_dbg(hw, "Flow Director Perfect poll time exceeded!\n");
 
-	return 0;
+	if (i >= IXGBE_FDIR_INIT_DONE_POLL)
+		hw_dbg(hw, "Flow Director poll time exceeded!\n");
 }
 
-
 /**
- *  ixgbe_atr_compute_hash_82599 - Compute the hashes for SW ATR
- *  @stream: input bitstream to compute the hash on
- *  @key: 32-bit hash key
+ *  ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
+ *  @hw: pointer to hardware structure
+ *  @fdirctrl: value to write to flow director control register, initially
+ *             contains just the value of the Rx packet buffer allocation
  **/
-static u32 ixgbe_atr_compute_hash_82599(union ixgbe_atr_input *atr_input,
-					u32 key)
+s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl)
 {
-	/*
-	 * The algorithm is as follows:
-	 *    Hash[15:0] = Sum { S[n] x K[n+16] }, n = 0...350
-	 *    where Sum {A[n]}, n = 0...n is bitwise XOR of A[0], A[1]...A[n]
-	 *    and A[n] x B[n] is bitwise AND between same length strings
-	 *
-	 *    K[n] is 16 bits, defined as:
-	 *       for n modulo 32 >= 15, K[n] = K[n % 32 : (n % 32) - 15]
-	 *       for n modulo 32 < 15, K[n] =
-	 *             K[(n % 32:0) | (31:31 - (14 - (n % 32)))]
-	 *
-	 *    S[n] is 16 bits, defined as:
-	 *       for n >= 15, S[n] = S[n:n - 15]
-	 *       for n < 15, S[n] = S[(n:0) | (350:350 - (14 - n))]
-	 *
-	 *    To simplify for programming, the algorithm is implemented
-	 *    in software this way:
-	 *
-	 *    key[31:0], hi_hash_dword[31:0], lo_hash_dword[31:0], hash[15:0]
-	 *
-	 *    for (i = 0; i < 352; i+=32)
-	 *        hi_hash_dword[31:0] ^= Stream[(i+31):i];
-	 *
-	 *    lo_hash_dword[15:0]  ^= Stream[15:0];
-	 *    lo_hash_dword[15:0]  ^= hi_hash_dword[31:16];
-	 *    lo_hash_dword[31:16] ^= hi_hash_dword[15:0];
-	 *
-	 *    hi_hash_dword[31:0]  ^= Stream[351:320];
-	 *
-	 *    if(key[0])
-	 *        hash[15:0] ^= Stream[15:0];
-	 *
-	 *    for (i = 0; i < 16; i++) {
-	 *        if (key[i])
-	 *            hash[15:0] ^= lo_hash_dword[(i+15):i];
-	 *        if (key[i + 16])
-	 *            hash[15:0] ^= hi_hash_dword[(i+15):i];
-	 *    }
-	 *
-	 */
-	__be32 common_hash_dword = 0;
-	u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
-	u32 hash_result = 0;
-	u8 i;
+	s32 err;
 
-	/* record the flow_vm_vlan bits as they are a key part to the hash */
-	flow_vm_vlan = ntohl(atr_input->dword_stream[0]);
+	/* Before enabling Flow Director, verify the Rx Packet Buffer size */
+	err = ixgbe_set_fdir_rxpba_82599(hw, fdirctrl);
+	if (err)
+		return err;
 
-	/* generate common hash dword */
-	for (i = 10; i; i -= 2)
-		common_hash_dword ^= atr_input->dword_stream[i] ^
-				     atr_input->dword_stream[i - 1];
+	/*
+	 * Continue setup of fdirctrl register bits:
+	 *  Move the flexible bytes to use the ethertype - shift 6 words
+	 *  Set the maximum length per hash bucket to 0xA filters
+	 *  Send interrupt when 64 filters are left
+	 */
+	fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
+		    (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
+		    (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
 
-	hi_hash_dword = ntohl(common_hash_dword);
+	/* write hashes and fdirctrl register, poll for completion */
+	ixgbe_fdir_enable_82599(hw, fdirctrl);
 
-	/* low dword is word swapped version of common */
-	lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
+	return 0;
+}
 
-	/* apply flow ID/VM pool/VLAN ID bits to hash words */
-	hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
+/**
+ *  ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
+ *  @hw: pointer to hardware structure
+ *  @fdirctrl: value to write to flow director control register, initially
+ *             contains just the value of the Rx packet buffer allocation
+ **/
+s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl)
+{
+	s32 err;
 
-	/* Process bits 0 and 16 */
-	if (key & 0x0001) hash_result ^= lo_hash_dword;
-	if (key & 0x00010000) hash_result ^= hi_hash_dword;
+	/* Before enabling Flow Director, verify the Rx Packet Buffer size */
+	err = ixgbe_set_fdir_rxpba_82599(hw, fdirctrl);
+	if (err)
+		return err;
 
 	/*
-	 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
-	 * delay this because bit 0 of the stream should not be processed
-	 * so we do not add the vlan until after bit 0 was processed
+	 * Continue setup of fdirctrl register bits:
+	 *  Turn perfect match filtering on
+	 *  Report hash in RSS field of Rx wb descriptor
+	 *  Initialize the drop queue
+	 *  Move the flexible bytes to use the ethertype - shift 6 words
+	 *  Set the maximum length per hash bucket to 0xA filters
+	 *  Send interrupt when 64 (0x4 * 16) filters are left
 	 */
-	lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
+	fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
+		    IXGBE_FDIRCTRL_REPORT_STATUS |
+		    (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
+		    (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
+		    (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
+		    (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
 
+	/* write hashes and fdirctrl register, poll for completion */
+	ixgbe_fdir_enable_82599(hw, fdirctrl);
 
-	/* process the remaining 30 bits in the key 2 bits at a time */
-	for (i = 15; i; i-- ) {
-		if (key & (0x0001 << i)) hash_result ^= lo_hash_dword >> i;
-		if (key & (0x00010000 << i)) hash_result ^= hi_hash_dword >> i;
-	}
-
-	return hash_result & IXGBE_ATR_HASH_MASK;
+	return 0;
 }
 
 /*
@@ -1476,7 +1420,6 @@ s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
 	 */
 	fdirhashcmd = (u64)fdircmd << 32;
 	fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
-
 	IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
 
 	hw_dbg(hw, "Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
@@ -1484,6 +1427,101 @@ s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
 	return 0;
 }
 
+#define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
+do { \
+	u32 n = (_n); \
+	if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
+		bucket_hash ^= lo_hash_dword >> n; \
+	if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
+		bucket_hash ^= hi_hash_dword >> n; \
+} while (0);
+
+/**
+ *  ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash
+ *  @atr_input: input bitstream to compute the hash on
+ *  @input_mask: mask for the input bitstream
+ *
+ *  This function serves two main purposes.  First it applys the input_mask
+ *  to the atr_input resulting in a cleaned up atr_input data stream.
+ *  Secondly it computes the hash and stores it in the bkt_hash field at
+ *  the end of the input byte stream.  This way it will be available for
+ *  future use without needing to recompute the hash.
+ **/
+void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
+					  union ixgbe_atr_input *input_mask)
+{
+
+	u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
+	u32 bucket_hash = 0;
+
+	/* Apply masks to input data */
+	input->dword_stream[0]  &= input_mask->dword_stream[0];
+	input->dword_stream[1]  &= input_mask->dword_stream[1];
+	input->dword_stream[2]  &= input_mask->dword_stream[2];
+	input->dword_stream[3]  &= input_mask->dword_stream[3];
+	input->dword_stream[4]  &= input_mask->dword_stream[4];
+	input->dword_stream[5]  &= input_mask->dword_stream[5];
+	input->dword_stream[6]  &= input_mask->dword_stream[6];
+	input->dword_stream[7]  &= input_mask->dword_stream[7];
+	input->dword_stream[8]  &= input_mask->dword_stream[8];
+	input->dword_stream[9]  &= input_mask->dword_stream[9];
+	input->dword_stream[10] &= input_mask->dword_stream[10];
+
+	/* record the flow_vm_vlan bits as they are a key part to the hash */
+	flow_vm_vlan = ntohl(input->dword_stream[0]);
+
+	/* generate common hash dword */
+	hi_hash_dword = ntohl(input->dword_stream[1] ^
+				    input->dword_stream[2] ^
+				    input->dword_stream[3] ^
+				    input->dword_stream[4] ^
+				    input->dword_stream[5] ^
+				    input->dword_stream[6] ^
+				    input->dword_stream[7] ^
+				    input->dword_stream[8] ^
+				    input->dword_stream[9] ^
+				    input->dword_stream[10]);
+
+	/* low dword is word swapped version of common */
+	lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
+
+	/* apply flow ID/VM pool/VLAN ID bits to hash words */
+	hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
+
+	/* Process bits 0 and 16 */
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(0);
+
+	/*
+	 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
+	 * delay this because bit 0 of the stream should not be processed
+	 * so we do not add the vlan until after bit 0 was processed
+	 */
+	lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
+
+	/* Process remaining 30 bit of the key */
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(1);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(2);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(3);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(4);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(5);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(6);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(7);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(8);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(9);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(10);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(11);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(12);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(13);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(14);
+	IXGBE_COMPUTE_BKT_HASH_ITERATION(15);
+
+	/*
+	 * Limit hash to 13 bits since max bucket count is 8K.
+	 * Store result at the end of the input stream.
+	 */
+	input->formatted.bkt_hash = bucket_hash & 0x1FFF;
+}
+
 /**
  *  ixgbe_get_fdirtcpm_82599 - generate a tcp port from atr_input_masks
  *  @input_mask: mask to be bit swapped
@@ -1493,11 +1531,11 @@ s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
  *  generate a correctly swapped value we need to bit swap the mask and that
  *  is what is accomplished by this function.
  **/
-static u32 ixgbe_get_fdirtcpm_82599(struct ixgbe_atr_input_masks *input_masks)
+static u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask)
 {
-	u32 mask = ntohs(input_masks->dst_port_mask);
+	u32 mask = ntohs(input_mask->formatted.dst_port);
 	mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
-	mask |= ntohs(input_masks->src_port_mask);
+	mask |= ntohs(input_mask->formatted.src_port);
 	mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
 	mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
 	mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
@@ -1519,52 +1557,14 @@ static u32 ixgbe_get_fdirtcpm_82599(struct ixgbe_atr_input_masks *input_masks)
 	IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(ntohl(value)))
 
 #define IXGBE_STORE_AS_BE16(_value) \
-	(((u16)(_value) >> 8) | ((u16)(_value) << 8))
+	ntohs(((u16)(_value) >> 8) | ((u16)(_value) << 8))
 
-/**
- *  ixgbe_fdir_add_perfect_filter_82599 - Adds a perfect filter
- *  @hw: pointer to hardware structure
- *  @input: input bitstream
- *  @input_masks: bitwise masks for relevant fields
- *  @soft_id: software index into the silicon hash tables for filter storage
- *  @queue: queue index to direct traffic to
- *
- *  Note that the caller to this function must lock before calling, since the
- *  hardware writes must be protected from one another.
- **/
-s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
-                                      union ixgbe_atr_input *input,
-                                      struct ixgbe_atr_input_masks *input_masks,
-                                      u16 soft_id, u8 queue)
+s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
+				    union ixgbe_atr_input *input_mask)
 {
-	u32 fdirhash;
-	u32 fdircmd;
-	u32 fdirport, fdirtcpm;
-	u32 fdirvlan;
-	/* start with VLAN, flex bytes, VM pool, and IPv6 destination masked */
-	u32 fdirm = IXGBE_FDIRM_VLANID | IXGBE_FDIRM_VLANP | IXGBE_FDIRM_FLEX |
-		    IXGBE_FDIRM_POOL | IXGBE_FDIRM_DIPv6;
-
-	/*
-	 * Check flow_type formatting, and bail out before we touch the hardware
-	 * if there's a configuration issue
-	 */
-	switch (input->formatted.flow_type) {
-	case IXGBE_ATR_FLOW_TYPE_IPV4:
-		/* use the L4 protocol mask for raw IPv4/IPv6 traffic */
-		fdirm |= IXGBE_FDIRM_L4P;
-	case IXGBE_ATR_FLOW_TYPE_SCTPV4:
-		if (input_masks->dst_port_mask || input_masks->src_port_mask) {
-			hw_dbg(hw, " Error on src/dst port mask\n");
-			return IXGBE_ERR_CONFIG;
-		}
-	case IXGBE_ATR_FLOW_TYPE_TCPV4:
-	case IXGBE_ATR_FLOW_TYPE_UDPV4:
-		break;
-	default:
-		hw_dbg(hw, " Error on flow type input\n");
-		return IXGBE_ERR_CONFIG;
-	}
+	/* mask IPv6 since it is currently not supported */
+	u32 fdirm = IXGBE_FDIRM_DIPv6;
+	u32 fdirtcpm;
 
 	/*
 	 * Program the relevant mask registers.  If src/dst_port or src/dst_addr
@@ -1576,41 +1576,71 @@ s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
 	 * point in time.
 	 */
 
-	/* Program FDIRM */
-	switch (ntohs(input_masks->vlan_id_mask) & 0xEFFF) {
-	case 0xEFFF:
-		/* Unmask VLAN ID - bit 0 and fall through to unmask prio */
-		fdirm &= ~IXGBE_FDIRM_VLANID;
-	case 0xE000:
-		/* Unmask VLAN prio - bit 1 */
-		fdirm &= ~IXGBE_FDIRM_VLANP;
+	/* verify bucket hash is cleared on hash generation */
+	if (input_mask->formatted.bkt_hash)
+		hw_dbg(hw, " bucket hash should always be 0 in mask\n");
+
+	/* Program FDIRM and verify partial masks */
+	switch (input_mask->formatted.vm_pool & 0x7F) {
+	case 0x0:
+		fdirm |= IXGBE_FDIRM_POOL;
+	case 0x7F:
 		break;
-	case 0x0FFF:
-		/* Unmask VLAN ID - bit 0 */
-		fdirm &= ~IXGBE_FDIRM_VLANID;
+	default:
+		hw_dbg(hw, " Error on vm pool mask\n");
+		return IXGBE_ERR_CONFIG;
+	}
+
+	switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
+	case 0x0:
+		fdirm |= IXGBE_FDIRM_L4P;
+		if (input_mask->formatted.dst_port ||
+		    input_mask->formatted.src_port) {
+			hw_dbg(hw, " Error on src/dst port mask\n");
+			return IXGBE_ERR_CONFIG;
+		}
+	case IXGBE_ATR_L4TYPE_MASK:
 		break;
+	default:
+		hw_dbg(hw, " Error on flow type mask\n");
+		return IXGBE_ERR_CONFIG;
+	}
+
+	switch (ntohs(input_mask->formatted.vlan_id) & 0xEFFF) {
 	case 0x0000:
-		/* do nothing, vlans already masked */
+		/* mask VLAN ID, fall through to mask VLAN priority */
+		fdirm |= IXGBE_FDIRM_VLANID;
+	case 0x0FFF:
+		/* mask VLAN priority */
+		fdirm |= IXGBE_FDIRM_VLANP;
+		break;
+	case 0xE000:
+		/* mask VLAN ID only, fall through */
+		fdirm |= IXGBE_FDIRM_VLANID;
+	case 0xEFFF:
+		/* no VLAN fields masked */
 		break;
 	default:
 		hw_dbg(hw, " Error on VLAN mask\n");
 		return IXGBE_ERR_CONFIG;
 	}
 
-	if (input_masks->flex_mask & 0xFFFF) {
-		if ((input_masks->flex_mask & 0xFFFF) != 0xFFFF) {
-			hw_dbg(hw, " Error on flexible byte mask\n");
-			return IXGBE_ERR_CONFIG;
-		}
-		/* Unmask Flex Bytes - bit 4 */
-		fdirm &= ~IXGBE_FDIRM_FLEX;
+	switch (input_mask->formatted.flex_bytes & 0xFFFF) {
+	case 0x0000:
+		/* Mask Flex Bytes, fall through */
+		fdirm |= IXGBE_FDIRM_FLEX;
+	case 0xFFFF:
+		break;
+	default:
+		hw_dbg(hw, " Error on flexible byte mask\n");
+		return IXGBE_ERR_CONFIG;
 	}
 
 	/* Now mask VM pool and destination IPv6 - bits 5 and 2 */
 	IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
 
 	/* store the TCP/UDP port masks, bit reversed from port layout */
-	fdirtcpm = ixgbe_get_fdirtcpm_82599(input_masks);
+	fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask);
 
 	/* write both the same so that UDP and TCP use the same mask */
 	IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
@@ -1618,24 +1648,32 @@ s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
 
 	/* store source and destination IP masks (big-enian) */
 	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
-			     ~input_masks->src_ip_mask[0]);
+			     ~input_mask->formatted.src_ip[0]);
 	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
-			     ~input_masks->dst_ip_mask[0]);
+			     ~input_mask->formatted.dst_ip[0]);
 
-	/* Apply masks to input data */
-	input->formatted.vlan_id &= input_masks->vlan_id_mask;
-	input->formatted.flex_bytes &= input_masks->flex_mask;
-	input->formatted.src_port &= input_masks->src_port_mask;
-	input->formatted.dst_port &= input_masks->dst_port_mask;
-	input->formatted.src_ip[0] &= input_masks->src_ip_mask[0];
-	input->formatted.dst_ip[0] &= input_masks->dst_ip_mask[0];
+	return 0;
+}
 
-	/* record vlan (little-endian) and flex_bytes(big-endian) */
-	fdirvlan =
-		IXGBE_STORE_AS_BE16(ntohs(input->formatted.flex_bytes));
-	fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
-	fdirvlan |= ntohs(input->formatted.vlan_id);
-	IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
+s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
+					  union ixgbe_atr_input *input,
+					  u16 soft_id, u8 queue)
+{
+	u32 fdirport, fdirvlan, fdirhash, fdircmd;
+
+	/* currently IPv6 is not supported, must be programmed with 0 */
+	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
+			     input->formatted.src_ip[0]);
+	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1),
+			     input->formatted.src_ip[1]);
+	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2),
+			     input->formatted.src_ip[2]);
+
+	/* record the source address (big-endian) */
+	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA, input->formatted.src_ip[0]);
+
+	/* record the first 32 bits of the destination address (big-endian) */
+	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA, input->formatted.dst_ip[0]);
 
 	/* record source and destination port (little-endian)*/
 	fdirport = ntohs(input->formatted.dst_port);
@@ -1643,29 +1681,80 @@ s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
 	fdirport |= ntohs(input->formatted.src_port);
 	IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
 
-	/* record the first 32 bits of the destination address (big-endian) */
-	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA, input->formatted.dst_ip[0]);
+	/* record vlan (little-endian) and flex_bytes(big-endian) */
+	fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes);
+	fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
+	fdirvlan |= ntohs(input->formatted.vlan_id);
+	IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
 
-	/* record the source address (big-endian) */
-	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA, input->formatted.src_ip[0]);
+	/* configure FDIRHASH register */
+	fdirhash = input->formatted.bkt_hash;
+	fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
+	IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
+
+	/*
+	 * flush all previous writes to make certain registers are
+	 * programmed prior to issuing the command
+	 */
+	IXGBE_WRITE_FLUSH(hw);
 
 	/* configure FDIRCMD register */
 	fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
 		  IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
+	if (queue == IXGBE_FDIR_DROP_QUEUE)
+		fdircmd |= IXGBE_FDIRCMD_DROP;
 	fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
 	fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
+	fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
 
-	/* we only want the bucket hash so drop the upper 16 bits */
-	fdirhash = ixgbe_atr_compute_hash_82599(input,
-						IXGBE_ATR_BUCKET_HASH_KEY);
-	fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
-
-	IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
 	IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
 
 	return 0;
 }
 
+s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
+					  union ixgbe_atr_input *input,
+					  u16 soft_id)
+{
+	u32 fdirhash;
+	u32 fdircmd = 0;
+	u32 retry_count;
+	s32 err = 0;
+
+	/* configure FDIRHASH register */
+	fdirhash = input->formatted.bkt_hash;
+	fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
+	IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
+
+	/* flush hash to HW */
+	IXGBE_WRITE_FLUSH(hw);
+
+	/* Query if filter is present */
+	IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
+
+	for (retry_count = 10; retry_count; retry_count--) {
+		/* allow 10us for query to process */
+		udelay(10);
+		/* verify query completed successfully */
+		fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
+		if (!(fdircmd & IXGBE_FDIRCMD_CMD_MASK))
+			break;
+	}
+
+	if (!retry_count)
+		err = IXGBE_ERR_FDIR_REINIT_FAILED;
+
+	/* if filter exists in hardware then remove it */
+	if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
+		IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
+		IXGBE_WRITE_FLUSH(hw);
+		IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
+				IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
+	}
+
+	return err;
+}
+
 /**
  *  ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
  *  @hw: pointer to hardware structure

drivers/net/ixgbe/ixgbe_dcb_nl.c

@@ -114,11 +114,12 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
 	u8 err = 0;
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
 
+	/* verify there is something to do, if not then exit */
+	if (!!state != !(adapter->flags & IXGBE_FLAG_DCB_ENABLED))
+		return err;
+
 	if (state > 0) {
 		/* Turn on DCB */
-		if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
-			goto out;
-
 		if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
 			e_err(drv, "Enable failed, needs MSI-X\n");
 			err = 1;
@@ -143,9 +144,6 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
 		ixgbe_setup_tc(netdev, MAX_TRAFFIC_CLASS);
 	} else {
 		/* Turn off DCB */
-		if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED))
-			goto out;
-
 		adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
 		adapter->temp_dcb_cfg.pfc_mode_enable = false;
 		adapter->dcb_cfg.pfc_mode_enable = false;
@@ -153,7 +151,8 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
 		switch (adapter->hw.mac.type) {
 		case ixgbe_mac_82599EB:
 		case ixgbe_mac_X540:
-			adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
+			if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))
+				adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
 			break;
 		default:
 			break;

drivers/net/ixgbe/ixgbe_ethtool.c

@@ -442,20 +442,67 @@ static int ixgbe_set_pauseparam(struct net_device *netdev,
 	return 0;
 }
 
+static void ixgbe_do_reset(struct net_device *netdev)
+{
+	struct ixgbe_adapter *adapter = netdev_priv(netdev);
+
+	if (netif_running(netdev))
+		ixgbe_reinit_locked(adapter);
+	else
+		ixgbe_reset(adapter);
+}
+
 static u32 ixgbe_get_rx_csum(struct net_device *netdev)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
 	return adapter->flags & IXGBE_FLAG_RX_CSUM_ENABLED;
 }
 
+static void ixgbe_set_rsc(struct ixgbe_adapter *adapter)
+{
+	int i;
+
+	for (i = 0; i < adapter->num_rx_queues; i++) {
+		struct ixgbe_ring *ring = adapter->rx_ring[i];
+		if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
+			set_ring_rsc_enabled(ring);
+			ixgbe_configure_rscctl(adapter, ring);
+		} else {
+			ixgbe_clear_rscctl(adapter, ring);
+		}
+	}
+}
+
 static int ixgbe_set_rx_csum(struct net_device *netdev, u32 data)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
-	if (data)
+	bool need_reset = false;
+
+	if (data) {
 		adapter->flags |= IXGBE_FLAG_RX_CSUM_ENABLED;
-	else
+	} else {
 		adapter->flags &= ~IXGBE_FLAG_RX_CSUM_ENABLED;
 
+		if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) {
+			adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED;
+			netdev->features &= ~NETIF_F_LRO;
+		}
+
+		switch (adapter->hw.mac.type) {
+		case ixgbe_mac_X540:
+			ixgbe_set_rsc(adapter);
+			break;
+		case ixgbe_mac_82599EB:
+			need_reset = true;
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (need_reset)
+		ixgbe_do_reset(netdev);
+
 	return 0;
 }
 
@@ -2234,12 +2281,8 @@ static int ixgbe_set_coalesce(struct net_device *netdev,
 	 * correctly w.r.t stopping tx, and changing TXDCTL.WTHRESH settings
 	 * also locks in RSC enable/disable which requires reset
 	 */
-	if (need_reset) {
-		if (netif_running(netdev))
-			ixgbe_reinit_locked(adapter);
-		else
-			ixgbe_reset(adapter);
-	}
+	if (need_reset)
+		ixgbe_do_reset(netdev);
 
 	return 0;
 }
@@ -2281,25 +2324,12 @@ static int ixgbe_set_flags(struct net_device *netdev, u32 data)
 		} else {
 			adapter->flags2 ^= IXGBE_FLAG2_RSC_ENABLED;
 			switch (adapter->hw.mac.type) {
+			case ixgbe_mac_X540:
+				ixgbe_set_rsc(adapter);
+				break;
 			case ixgbe_mac_82599EB:
 				need_reset = true;
 				break;
-			case ixgbe_mac_X540: {
-				int i;
-				for (i = 0; i < adapter->num_rx_queues; i++) {
-					struct ixgbe_ring *ring =
-					                  adapter->rx_ring[i];
-					if (adapter->flags2 &
-					    IXGBE_FLAG2_RSC_ENABLED) {
-						ixgbe_configure_rscctl(adapter,
-						                       ring);
-					} else {
-						ixgbe_clear_rscctl(adapter,
-						                   ring);
-					}
-				}
-			}
-				break;
 			default:
 				break;
 			}
@@ -2310,165 +2340,392 @@ static int ixgbe_set_flags(struct net_device *netdev, u32 data)
 	 * Check if Flow Director n-tuple support was enabled or disabled.  If
 	 * the state changed, we need to reset.
 	 */
-	if ((adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) &&
-	    (!(data & ETH_FLAG_NTUPLE))) {
-		/* turn off Flow Director perfect, set hash and reset */
+	if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) {
+		/* turn off ATR, enable perfect filters and reset */
+		if (data & ETH_FLAG_NTUPLE) {
+			adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
+			adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
+			need_reset = true;
+		}
+	} else if (!(data & ETH_FLAG_NTUPLE)) {
+		/* turn off Flow Director, set ATR and reset */
 		adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
-		adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
-		need_reset = true;
-	} else if ((!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) &&
-	           (data & ETH_FLAG_NTUPLE)) {
-		/* turn off Flow Director hash, enable perfect and reset */
-		adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
-		adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
+		if ((adapter->flags & IXGBE_FLAG_RSS_ENABLED) &&
+		    !(adapter->flags & IXGBE_FLAG_DCB_ENABLED))
+			adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
 		need_reset = true;
-	} else {
-		/* no state change */
 	}
 
-	if (need_reset) {
-		if (netif_running(netdev))
-			ixgbe_reinit_locked(adapter);
-		else
-			ixgbe_reset(adapter);
+	if (need_reset)
+		ixgbe_do_reset(netdev);
+
+	return 0;
+}
+
+static int ixgbe_get_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
+					struct ethtool_rxnfc *cmd)
+{
+	union ixgbe_atr_input *mask = &adapter->fdir_mask;
+	struct ethtool_rx_flow_spec *fsp =
+		(struct ethtool_rx_flow_spec *)&cmd->fs;
+	struct hlist_node *node, *node2;
+	struct ixgbe_fdir_filter *rule = NULL;
+
+	/* report total rule count */
+	cmd->data = (1024 << adapter->fdir_pballoc) - 2;
+
+	hlist_for_each_entry_safe(rule, node, node2,
+				  &adapter->fdir_filter_list, fdir_node) {
+		if (fsp->location <= rule->sw_idx)
+			break;
 	}
 
+	if (!rule || fsp->location != rule->sw_idx)
+		return -EINVAL;
+
+	/* fill out the flow spec entry */
+
+	/* set flow type field */
+	switch (rule->filter.formatted.flow_type) {
+	case IXGBE_ATR_FLOW_TYPE_TCPV4:
+		fsp->flow_type = TCP_V4_FLOW;
+		break;
+	case IXGBE_ATR_FLOW_TYPE_UDPV4:
+		fsp->flow_type = UDP_V4_FLOW;
+		break;
+	case IXGBE_ATR_FLOW_TYPE_SCTPV4:
+		fsp->flow_type = SCTP_V4_FLOW;
+		break;
+	case IXGBE_ATR_FLOW_TYPE_IPV4:
+		fsp->flow_type = IP_USER_FLOW;
+		fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
+		fsp->h_u.usr_ip4_spec.proto = 0;
+		fsp->m_u.usr_ip4_spec.proto = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	fsp->h_u.tcp_ip4_spec.psrc = rule->filter.formatted.src_port;
+	fsp->m_u.tcp_ip4_spec.psrc = mask->formatted.src_port;
+	fsp->h_u.tcp_ip4_spec.pdst = rule->filter.formatted.dst_port;
+	fsp->m_u.tcp_ip4_spec.pdst = mask->formatted.dst_port;
+	fsp->h_u.tcp_ip4_spec.ip4src = rule->filter.formatted.src_ip[0];
+	fsp->m_u.tcp_ip4_spec.ip4src = mask->formatted.src_ip[0];
+	fsp->h_u.tcp_ip4_spec.ip4dst = rule->filter.formatted.dst_ip[0];
+	fsp->m_u.tcp_ip4_spec.ip4dst = mask->formatted.dst_ip[0];
+	fsp->h_ext.vlan_tci = rule->filter.formatted.vlan_id;
+	fsp->m_ext.vlan_tci = mask->formatted.vlan_id;
+	fsp->h_ext.vlan_etype = rule->filter.formatted.flex_bytes;
+	fsp->m_ext.vlan_etype = mask->formatted.flex_bytes;
+	fsp->h_ext.data[1] = htonl(rule->filter.formatted.vm_pool);
+	fsp->m_ext.data[1] = htonl(mask->formatted.vm_pool);
+	fsp->flow_type |= FLOW_EXT;
+
+	/* record action */
+	if (rule->action == IXGBE_FDIR_DROP_QUEUE)
+		fsp->ring_cookie = RX_CLS_FLOW_DISC;
+	else
+		fsp->ring_cookie = rule->action;
+
 	return 0;
 }
 
-static int ixgbe_set_rx_ntuple(struct net_device *dev,
-                               struct ethtool_rx_ntuple *cmd)
+static int ixgbe_get_ethtool_fdir_all(struct ixgbe_adapter *adapter,
+				      struct ethtool_rxnfc *cmd,
+				      u32 *rule_locs)
+{
+	struct hlist_node *node, *node2;
+	struct ixgbe_fdir_filter *rule;
+	int cnt = 0;
+
+	/* report total rule count */
+	cmd->data = (1024 << adapter->fdir_pballoc) - 2;
+
+	hlist_for_each_entry_safe(rule, node, node2,
+				  &adapter->fdir_filter_list, fdir_node) {
+		if (cnt == cmd->rule_cnt)
+			return -EMSGSIZE;
+		rule_locs[cnt] = rule->sw_idx;
+		cnt++;
+	}
+
+	return 0;
+}
+
+static int ixgbe_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
+			   void *rule_locs)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(dev);
-	struct ethtool_rx_ntuple_flow_spec *fs = &cmd->fs;
-	union ixgbe_atr_input input_struct;
-	struct ixgbe_atr_input_masks input_masks;
-	int target_queue;
-	int err;
+	int ret = -EOPNOTSUPP;
 
-	if (adapter->hw.mac.type == ixgbe_mac_82598EB)
-		return -EOPNOTSUPP;
+	switch (cmd->cmd) {
+	case ETHTOOL_GRXRINGS:
+		cmd->data = adapter->num_rx_queues;
+		ret = 0;
+		break;
+	case ETHTOOL_GRXCLSRLCNT:
+		cmd->rule_cnt = adapter->fdir_filter_count;
+		ret = 0;
+		break;
+	case ETHTOOL_GRXCLSRULE:
+		ret = ixgbe_get_ethtool_fdir_entry(adapter, cmd);
+		break;
+	case ETHTOOL_GRXCLSRLALL:
+		ret = ixgbe_get_ethtool_fdir_all(adapter, cmd,
+						 (u32 *)rule_locs);
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+static int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
+					   struct ixgbe_fdir_filter *input,
+					   u16 sw_idx)
+{
+	struct ixgbe_hw *hw = &adapter->hw;
+	struct hlist_node *node, *node2, *parent;
+	struct ixgbe_fdir_filter *rule;
+	int err = -EINVAL;
+
+	parent = NULL;
+	rule = NULL;
+
+	hlist_for_each_entry_safe(rule, node, node2,
+				  &adapter->fdir_filter_list, fdir_node) {
+		/* hash found, or no matching entry */
+		if (rule->sw_idx >= sw_idx)
+			break;
+		parent = node;
+	}
+
+	/* if there is an old rule occupying our place remove it */
+	if (rule && (rule->sw_idx == sw_idx)) {
+		if (!input || (rule->filter.formatted.bkt_hash !=
+			       input->filter.formatted.bkt_hash)) {
+			err = ixgbe_fdir_erase_perfect_filter_82599(hw,
+								&rule->filter,
+								sw_idx);
+		}
+
+		hlist_del(&rule->fdir_node);
+		kfree(rule);
+		adapter->fdir_filter_count--;
+	}
 
 	/*
-	 * Don't allow programming if the action is a queue greater than
-	 * the number of online Tx queues.
+	 * If no input this was a delete, err should be 0 if a rule was
+	 * successfully found and removed from the list else -EINVAL
 	 */
-	if ((fs->action >= adapter->num_tx_queues) ||
-	    (fs->action < ETHTOOL_RXNTUPLE_ACTION_DROP))
-		return -EINVAL;
+	if (!input)
+		return err;
 
-	memset(&input_struct, 0, sizeof(union ixgbe_atr_input));
-	memset(&input_masks, 0, sizeof(struct ixgbe_atr_input_masks));
+	/* initialize node and set software index */
+	INIT_HLIST_NODE(&input->fdir_node);
 
-	/* record flow type */
-	switch (fs->flow_type) {
-	case IPV4_FLOW:
-		input_struct.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_IPV4;
-		break;
+	/* add filter to the list */
+	if (parent)
+		hlist_add_after(parent, &input->fdir_node);
+	else
+		hlist_add_head(&input->fdir_node,
+			       &adapter->fdir_filter_list);
+
+	/* update counts */
+	adapter->fdir_filter_count++;
+
+	return 0;
+}
+
+static int ixgbe_flowspec_to_flow_type(struct ethtool_rx_flow_spec *fsp,
+				       u8 *flow_type)
+{
+	switch (fsp->flow_type & ~FLOW_EXT) {
 	case TCP_V4_FLOW:
-		input_struct.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
+		*flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
 		break;
 	case UDP_V4_FLOW:
-		input_struct.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
+		*flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
 		break;
 	case SCTP_V4_FLOW:
-		input_struct.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
+		*flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
 		break;
-	default:
-		return -1;
-	}
-
-	/* copy vlan tag minus the CFI bit */
-	if ((fs->vlan_tag & 0xEFFF) || (~fs->vlan_tag_mask & 0xEFFF)) {
-		input_struct.formatted.vlan_id = htons(fs->vlan_tag & 0xEFFF);
-		if (!fs->vlan_tag_mask) {
-			input_masks.vlan_id_mask = htons(0xEFFF);
-		} else {
-			switch (~fs->vlan_tag_mask & 0xEFFF) {
-			/* all of these are valid vlan-mask values */
-			case 0xEFFF:
-			case 0xE000:
-			case 0x0FFF:
-			case 0x0000:
-				input_masks.vlan_id_mask =
-					htons(~fs->vlan_tag_mask);
+	case IP_USER_FLOW:
+		switch (fsp->h_u.usr_ip4_spec.proto) {
+		case IPPROTO_TCP:
+			*flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
+			break;
+		case IPPROTO_UDP:
+			*flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
+			break;
+		case IPPROTO_SCTP:
+			*flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
+			break;
+		case 0:
+			if (!fsp->m_u.usr_ip4_spec.proto) {
+				*flow_type = IXGBE_ATR_FLOW_TYPE_IPV4;
 				break;
-			/* exit with error if vlan-mask is invalid */
-			default:
-				e_err(drv, "Partial VLAN ID or "
-				      "priority mask in vlan-mask is not "
-				      "supported by hardware\n");
-				return -1;
 			}
+		default:
+			return 0;
 		}
+		break;
+	default:
+		return 0;
 	}
 
-	/* make sure we only use the first 2 bytes of user data */
-	if ((fs->data & 0xFFFF) || (~fs->data_mask & 0xFFFF)) {
-		input_struct.formatted.flex_bytes = htons(fs->data & 0xFFFF);
-		if (!(fs->data_mask & 0xFFFF)) {
-			input_masks.flex_mask = 0xFFFF;
-		} else if (~fs->data_mask & 0xFFFF) {
-			e_err(drv, "Partial user-def-mask is not "
-			      "supported by hardware\n");
-			return -1;
-		}
-	}
+	return 1;
+}
+
+static int ixgbe_add_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
+					struct ethtool_rxnfc *cmd)
+{
+	struct ethtool_rx_flow_spec *fsp =
+		(struct ethtool_rx_flow_spec *)&cmd->fs;
+	struct ixgbe_hw *hw = &adapter->hw;
+	struct ixgbe_fdir_filter *input;
+	union ixgbe_atr_input mask;
+	int err;
+
+	if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))
+		return -EOPNOTSUPP;
 
 	/*
-	 * Copy input into formatted structures
-	 *
-	 * These assignments are based on the following logic
-	 * If neither input or mask are set assume value is masked out.
-	 * If input is set, but mask is not mask should default to accept all.
-	 * If input is not set, but mask is set then mask likely results in 0.
-	 * If input is set and mask is set then assign both.
+	 * Don't allow programming if the action is a queue greater than
+	 * the number of online Rx queues.
 	 */
-	if (fs->h_u.tcp_ip4_spec.ip4src || ~fs->m_u.tcp_ip4_spec.ip4src) {
-		input_struct.formatted.src_ip[0] = fs->h_u.tcp_ip4_spec.ip4src;
-		if (!fs->m_u.tcp_ip4_spec.ip4src)
-			input_masks.src_ip_mask[0] = 0xFFFFFFFF;
-		else
-			input_masks.src_ip_mask[0] =
-				~fs->m_u.tcp_ip4_spec.ip4src;
-	}
-	if (fs->h_u.tcp_ip4_spec.ip4dst || ~fs->m_u.tcp_ip4_spec.ip4dst) {
-		input_struct.formatted.dst_ip[0] = fs->h_u.tcp_ip4_spec.ip4dst;
-		if (!fs->m_u.tcp_ip4_spec.ip4dst)
-			input_masks.dst_ip_mask[0] = 0xFFFFFFFF;
-		else
-			input_masks.dst_ip_mask[0] =
-				~fs->m_u.tcp_ip4_spec.ip4dst;
+	if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
+	    (fsp->ring_cookie >= adapter->num_rx_queues))
+		return -EINVAL;
+
+	/* Don't allow indexes to exist outside of available space */
+	if (fsp->location >= ((1024 << adapter->fdir_pballoc) - 2)) {
+		e_err(drv, "Location out of range\n");
+		return -EINVAL;
 	}
-	if (fs->h_u.tcp_ip4_spec.psrc || ~fs->m_u.tcp_ip4_spec.psrc) {
-		input_struct.formatted.src_port = fs->h_u.tcp_ip4_spec.psrc;
-		if (!fs->m_u.tcp_ip4_spec.psrc)
-			input_masks.src_port_mask = 0xFFFF;
-		else
-			input_masks.src_port_mask = ~fs->m_u.tcp_ip4_spec.psrc;
+
+	input = kzalloc(sizeof(*input), GFP_ATOMIC);
+	if (!input)
+		return -ENOMEM;
+
+	memset(&mask, 0, sizeof(union ixgbe_atr_input));
+
+	/* set SW index */
+	input->sw_idx = fsp->location;
+
+	/* record flow type */
+	if (!ixgbe_flowspec_to_flow_type(fsp,
+					 &input->filter.formatted.flow_type)) {
+		e_err(drv, "Unrecognized flow type\n");
+		goto err_out;
 	}
-	if (fs->h_u.tcp_ip4_spec.pdst || ~fs->m_u.tcp_ip4_spec.pdst) {
-		input_struct.formatted.dst_port = fs->h_u.tcp_ip4_spec.pdst;
-		if (!fs->m_u.tcp_ip4_spec.pdst)
-			input_masks.dst_port_mask = 0xFFFF;
-		else
-			input_masks.dst_port_mask = ~fs->m_u.tcp_ip4_spec.pdst;
+
+	mask.formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK |
+				   IXGBE_ATR_L4TYPE_MASK;
+
+	if (input->filter.formatted.flow_type == IXGBE_ATR_FLOW_TYPE_IPV4)
+		mask.formatted.flow_type &= IXGBE_ATR_L4TYPE_IPV6_MASK;
+
+	/* Copy input into formatted structures */
+	input->filter.formatted.src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
+	mask.formatted.src_ip[0] = fsp->m_u.tcp_ip4_spec.ip4src;
+	input->filter.formatted.dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
+	mask.formatted.dst_ip[0] = fsp->m_u.tcp_ip4_spec.ip4dst;
+	input->filter.formatted.src_port = fsp->h_u.tcp_ip4_spec.psrc;
+	mask.formatted.src_port = fsp->m_u.tcp_ip4_spec.psrc;
+	input->filter.formatted.dst_port = fsp->h_u.tcp_ip4_spec.pdst;
+	mask.formatted.dst_port = fsp->m_u.tcp_ip4_spec.pdst;
+
+	if (fsp->flow_type & FLOW_EXT) {
+		input->filter.formatted.vm_pool =
+				(unsigned char)ntohl(fsp->h_ext.data[1]);
+		mask.formatted.vm_pool =
+				(unsigned char)ntohl(fsp->m_ext.data[1]);
+		input->filter.formatted.vlan_id = fsp->h_ext.vlan_tci;
+		mask.formatted.vlan_id = fsp->m_ext.vlan_tci;
+		input->filter.formatted.flex_bytes =
+						fsp->h_ext.vlan_etype;
+		mask.formatted.flex_bytes = fsp->m_ext.vlan_etype;
 	}
 
 	/* determine if we need to drop or route the packet */
-	if (fs->action == ETHTOOL_RXNTUPLE_ACTION_DROP)
-		target_queue = MAX_RX_QUEUES - 1;
+	if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
+		input->action = IXGBE_FDIR_DROP_QUEUE;
 	else
-		target_queue = fs->action;
+		input->action = fsp->ring_cookie;
 
 	spin_lock(&adapter->fdir_perfect_lock);
-	err = ixgbe_fdir_add_perfect_filter_82599(&adapter->hw,
-						  &input_struct,
-						  &input_masks, 0,
-						  target_queue);
+
+	if (hlist_empty(&adapter->fdir_filter_list)) {
+		/* save mask and program input mask into HW */
+		memcpy(&adapter->fdir_mask, &mask, sizeof(mask));
+		err = ixgbe_fdir_set_input_mask_82599(hw, &mask);
+		if (err) {
+			e_err(drv, "Error writing mask\n");
+			goto err_out_w_lock;
+		}
+	} else if (memcmp(&adapter->fdir_mask, &mask, sizeof(mask))) {
+		e_err(drv, "Only one mask supported per port\n");
+		goto err_out_w_lock;
+	}
+
+	/* apply mask and compute/store hash */
+	ixgbe_atr_compute_perfect_hash_82599(&input->filter, &mask);
+
+	/* program filters to filter memory */
+	err = ixgbe_fdir_write_perfect_filter_82599(hw,
+				&input->filter, input->sw_idx,
+				(input->action == IXGBE_FDIR_DROP_QUEUE) ?
+				IXGBE_FDIR_DROP_QUEUE :
+				adapter->rx_ring[input->action]->reg_idx);
+	if (err)
+		goto err_out_w_lock;
+
+	ixgbe_update_ethtool_fdir_entry(adapter, input, input->sw_idx);
+
 	spin_unlock(&adapter->fdir_perfect_lock);
 
-	return err ? -1 : 0;
+	return err;
+err_out_w_lock:
+	spin_unlock(&adapter->fdir_perfect_lock);
+err_out:
+	kfree(input);
+	return -EINVAL;
+}
+
+static int ixgbe_del_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
+					struct ethtool_rxnfc *cmd)
+{
+	struct ethtool_rx_flow_spec *fsp =
+		(struct ethtool_rx_flow_spec *)&cmd->fs;
+	int err;
+
+	spin_lock(&adapter->fdir_perfect_lock);
+	err = ixgbe_update_ethtool_fdir_entry(adapter, NULL, fsp->location);
+	spin_unlock(&adapter->fdir_perfect_lock);
+
+	return err;
+}
+
+static int ixgbe_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
+{
+	struct ixgbe_adapter *adapter = netdev_priv(dev);
+	int ret = -EOPNOTSUPP;
+
+	switch (cmd->cmd) {
+	case ETHTOOL_SRXCLSRLINS:
+		ret = ixgbe_add_ethtool_fdir_entry(adapter, cmd);
+		break;
+	case ETHTOOL_SRXCLSRLDEL:
+		ret = ixgbe_del_ethtool_fdir_entry(adapter, cmd);
+		break;
+	default:
+		break;
+	}
+
+	return ret;
 }
 
 static const struct ethtool_ops ixgbe_ethtool_ops = {
@@ -2506,7 +2763,8 @@ static const struct ethtool_ops ixgbe_ethtool_ops = {
 	.set_coalesce           = ixgbe_set_coalesce,
 	.get_flags              = ethtool_op_get_flags,
 	.set_flags              = ixgbe_set_flags,
-	.set_rx_ntuple          = ixgbe_set_rx_ntuple,
+	.get_rxnfc		= ixgbe_get_rxnfc,
+	.set_rxnfc		= ixgbe_set_rxnfc,
 };
 
 void ixgbe_set_ethtool_ops(struct net_device *netdev)

drivers/net/ixgbe/ixgbe_main.c

@@ -54,11 +54,10 @@ char ixgbe_driver_name[] = "ixgbe";
 static const char ixgbe_driver_string[] =
 			      "Intel(R) 10 Gigabit PCI Express Network Driver";
 #define MAJ 3
-#define MIN 3
+#define MIN 4
 #define BUILD 8
-#define KFIX 2
 #define DRV_VERSION __stringify(MAJ) "." __stringify(MIN) "." \
-	__stringify(BUILD) "-k" __stringify(KFIX)
+	__stringify(BUILD) "-k"
 const char ixgbe_driver_version[] = DRV_VERSION;
 static const char ixgbe_copyright[] =
 				"Copyright (c) 1999-2011 Intel Corporation.";
@@ -1555,9 +1554,8 @@ static void ixgbe_configure_msix(struct ixgbe_adapter *adapter)
 			q_vector->eitr = adapter->rx_eitr_param;
 
 		ixgbe_write_eitr(q_vector);
-		/* If Flow Director is enabled, set interrupt affinity */
-		if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) ||
-		    (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) {
+		/* If ATR is enabled, set interrupt affinity */
+		if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) {
 			/*
 			 * Allocate the affinity_hint cpumask, assign the mask
 			 * for this vector, and set our affinity_hint for
@@ -2468,8 +2466,7 @@ static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues,
 	default:
 		break;
 	}
-	if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE ||
-	    adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)
+	if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)
 		mask |= IXGBE_EIMS_FLOW_DIR;
 
 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask);
@@ -3743,6 +3740,30 @@ static void ixgbe_configure_pb(struct ixgbe_adapter *adapter)
 	hw->mac.ops.set_rxpba(&adapter->hw, num_tc, hdrm, PBA_STRATEGY_EQUAL);
 }
 
+static void ixgbe_fdir_filter_restore(struct ixgbe_adapter *adapter)
+{
+	struct ixgbe_hw *hw = &adapter->hw;
+	struct hlist_node *node, *node2;
+	struct ixgbe_fdir_filter *filter;
+
+	spin_lock(&adapter->fdir_perfect_lock);
+
+	if (!hlist_empty(&adapter->fdir_filter_list))
+		ixgbe_fdir_set_input_mask_82599(hw, &adapter->fdir_mask);
+
+	hlist_for_each_entry_safe(filter, node, node2,
+				  &adapter->fdir_filter_list, fdir_node) {
+		ixgbe_fdir_write_perfect_filter_82599(hw,
+				&filter->filter,
+				filter->sw_idx,
+				(filter->action == IXGBE_FDIR_DROP_QUEUE) ?
+				IXGBE_FDIR_DROP_QUEUE :
+				adapter->rx_ring[filter->action]->reg_idx);
+	}
+
+	spin_unlock(&adapter->fdir_perfect_lock);
+}
+
 static void ixgbe_configure(struct ixgbe_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
@@ -3768,7 +3789,9 @@ static void ixgbe_configure(struct ixgbe_adapter *adapter)
 						       adapter->atr_sample_rate;
 		ixgbe_init_fdir_signature_82599(hw, adapter->fdir_pballoc);
 	} else if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) {
-		ixgbe_init_fdir_perfect_82599(hw, adapter->fdir_pballoc);
+		ixgbe_init_fdir_perfect_82599(&adapter->hw,
+					      adapter->fdir_pballoc);
+		ixgbe_fdir_filter_restore(adapter);
 	}
 	ixgbe_configure_virtualization(adapter);
 
@@ -4145,6 +4168,23 @@ static void ixgbe_clean_all_tx_rings(struct ixgbe_adapter *adapter)
 		ixgbe_clean_tx_ring(adapter->tx_ring[i]);
 }
 
+static void ixgbe_fdir_filter_exit(struct ixgbe_adapter *adapter)
+{
+	struct hlist_node *node, *node2;
+	struct ixgbe_fdir_filter *filter;
+
+	spin_lock(&adapter->fdir_perfect_lock);
+
+	hlist_for_each_entry_safe(filter, node, node2,
+				  &adapter->fdir_filter_list, fdir_node) {
+		hlist_del(&filter->fdir_node);
+		kfree(filter);
+	}
+	adapter->fdir_filter_count = 0;
+
+	spin_unlock(&adapter->fdir_perfect_lock);
+}
+
 void ixgbe_down(struct ixgbe_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
@@ -4334,15 +4374,13 @@ static inline bool ixgbe_set_fdir_queues(struct ixgbe_adapter *adapter)
 	f_fdir->mask = 0;
 
 	/* Flow Director must have RSS enabled */
-	if (adapter->flags & IXGBE_FLAG_RSS_ENABLED &&
-	    ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE ||
-	     (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)))) {
+	if ((adapter->flags & IXGBE_FLAG_RSS_ENABLED) &&
+	    (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)) {
 		adapter->num_tx_queues = f_fdir->indices;
 		adapter->num_rx_queues = f_fdir->indices;
 		ret = true;
 	} else {
 		adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
-		adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
 	}
 	return ret;
 }
@@ -4372,12 +4410,12 @@ static inline bool ixgbe_set_fcoe_queues(struct ixgbe_adapter *adapter)
 
 	if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) {
 		e_info(probe, "FCoE enabled with RSS\n");
-		if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) ||
-		    (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))
+		if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)
 			ixgbe_set_fdir_queues(adapter);
 		else
 			ixgbe_set_rss_queues(adapter);
 	}
+
 	/* adding FCoE rx rings to the end */
 	f->mask = adapter->num_rx_queues;
 	adapter->num_rx_queues += f->indices;
@@ -4670,9 +4708,8 @@ static inline bool ixgbe_cache_ring_fdir(struct ixgbe_adapter *adapter)
 	int i;
 	bool ret = false;
 
-	if (adapter->flags & IXGBE_FLAG_RSS_ENABLED &&
-	    ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) ||
-	     (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))) {
+	if ((adapter->flags & IXGBE_FLAG_RSS_ENABLED) &&
+	    (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)) {
 		for (i = 0; i < adapter->num_rx_queues; i++)
 			adapter->rx_ring[i]->reg_idx = i;
 		for (i = 0; i < adapter->num_tx_queues; i++)
@@ -4701,8 +4738,7 @@ static inline bool ixgbe_cache_ring_fcoe(struct ixgbe_adapter *adapter)
 		return false;
 
 	if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) {
-		if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) ||
-		    (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))
+		if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)
 			ixgbe_cache_ring_fdir(adapter);
 		else
 			ixgbe_cache_ring_rss(adapter);
@@ -4882,14 +4918,12 @@ static int ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter)
 
 	adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
 	adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED;
-	if (adapter->flags & (IXGBE_FLAG_FDIR_HASH_CAPABLE |
-			      IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) {
+	if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) {
 		e_err(probe,
-		      "Flow Director is not supported while multiple "
+		      "ATR is not supported while multiple "
 		      "queues are disabled.  Disabling Flow Director\n");
 	}
 	adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
-	adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
 	adapter->atr_sample_rate = 0;
 	if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
 		ixgbe_disable_sriov(adapter);
@@ -5140,7 +5174,7 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter)
 		adapter->atr_sample_rate = 20;
 		adapter->ring_feature[RING_F_FDIR].indices =
 							 IXGBE_MAX_FDIR_INDICES;
-		adapter->fdir_pballoc = 0;
+		adapter->fdir_pballoc = IXGBE_FDIR_PBALLOC_64K;
 #ifdef IXGBE_FCOE
 		adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE;
 		adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
@@ -5537,6 +5571,8 @@ static int ixgbe_close(struct net_device *netdev)
 	ixgbe_down(adapter);
 	ixgbe_free_irq(adapter);
 
+	ixgbe_fdir_filter_exit(adapter);
+
 	ixgbe_free_all_tx_resources(adapter);
 	ixgbe_free_all_rx_resources(adapter);
 
@@ -7676,7 +7712,8 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
 
 	/* Inform firmware of driver version */
 	if (hw->mac.ops.set_fw_drv_ver)
-		hw->mac.ops.set_fw_drv_ver(hw, MAJ, MIN, BUILD, KFIX);
+		hw->mac.ops.set_fw_drv_ver(hw, MAJ, MIN, BUILD,
+					   FW_CEM_UNUSED_VER);
 
 	/* add san mac addr to netdev */
 	ixgbe_add_sanmac_netdev(netdev);

drivers/net/ixgbe/ixgbe_type.h

@@ -2056,9 +2056,10 @@ enum {
 #define IXGBE_VFLREC(_i)                 (0x00700 + (_i * 4))
 
 enum ixgbe_fdir_pballoc_type {
-	IXGBE_FDIR_PBALLOC_64K = 0,
-	IXGBE_FDIR_PBALLOC_128K,
-	IXGBE_FDIR_PBALLOC_256K,
+	IXGBE_FDIR_PBALLOC_NONE = 0,
+	IXGBE_FDIR_PBALLOC_64K  = 1,
+	IXGBE_FDIR_PBALLOC_128K = 2,
+	IXGBE_FDIR_PBALLOC_256K = 3,
 };
 #define IXGBE_FDIR_PBALLOC_SIZE_SHIFT           16
 
@@ -2112,7 +2113,7 @@ enum ixgbe_fdir_pballoc_type {
 #define IXGBE_FDIRCMD_CMD_ADD_FLOW              0x00000001
 #define IXGBE_FDIRCMD_CMD_REMOVE_FLOW           0x00000002
 #define IXGBE_FDIRCMD_CMD_QUERY_REM_FILT        0x00000003
-#define IXGBE_FDIRCMD_CMD_QUERY_REM_HASH        0x00000007
+#define IXGBE_FDIRCMD_FILTER_VALID              0x00000004
 #define IXGBE_FDIRCMD_FILTER_UPDATE             0x00000008
 #define IXGBE_FDIRCMD_IPv6DMATCH                0x00000010
 #define IXGBE_FDIRCMD_L4TYPE_UDP                0x00000020
@@ -2131,6 +2132,8 @@ enum ixgbe_fdir_pballoc_type {
 #define IXGBE_FDIR_INIT_DONE_POLL               10
 #define IXGBE_FDIRCMD_CMD_POLL                  10
 
+#define IXGBE_FDIR_DROP_QUEUE                   127
+
 /* Manageablility Host Interface defines */
 #define IXGBE_HI_MAX_BLOCK_BYTE_LENGTH       1792 /* Num of bytes in range */
 #define IXGBE_HI_MAX_BLOCK_DWORD_LENGTH      448 /* Num of dwords in range */
@@ -2140,7 +2143,8 @@ enum ixgbe_fdir_pballoc_type {
 #define FW_CEM_HDR_LEN                0x4
 #define FW_CEM_CMD_DRIVER_INFO        0xDD
 #define FW_CEM_CMD_DRIVER_INFO_LEN    0x5
-#define FW_CEM_CMD_RESERVED           0X0
+#define FW_CEM_CMD_RESERVED           0x0
+#define FW_CEM_UNUSED_VER             0x0
 #define FW_CEM_MAX_RETRIES            3
 #define FW_CEM_RESP_STATUS_SUCCESS    0x1
 
@@ -2350,7 +2354,7 @@ union ixgbe_atr_input {
 	 * src_port   - 2 bytes
 	 * dst_port   - 2 bytes
 	 * flex_bytes - 2 bytes
-	 * rsvd0      - 2 bytes - space reserved must be 0.
+	 * bkt_hash   - 2 bytes
 	 */
 	struct {
 		u8     vm_pool;
@@ -2361,7 +2365,7 @@ union ixgbe_atr_input {
 		__be16 src_port;
 		__be16 dst_port;
 		__be16 flex_bytes;
-		__be16 rsvd0;
+		__be16 bkt_hash;
 	} formatted;
 	__be32 dword_stream[11];
 };
@@ -2382,16 +2386,6 @@ union ixgbe_atr_hash_dword {
 	__be32 dword;
 };
 
-struct ixgbe_atr_input_masks {
-	__be16 rsvd0;
-	__be16 vlan_id_mask;
-	__be32 dst_ip_mask[4];
-	__be32 src_ip_mask[4];
-	__be16 src_port_mask;
-	__be16 dst_port_mask;
-	__be16 flex_mask;
-};
-
 enum ixgbe_eeprom_type {
 	ixgbe_eeprom_uninitialized = 0,
 	ixgbe_eeprom_spi,