diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe.h | 18 | ||||
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_82599.c | 603 | ||||
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 2 | ||||
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_type.h | 25 |
4 files changed, 368 insertions, 280 deletions
diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h index d5674fc8bc0..5ea5b4c08fe 100644 --- a/drivers/net/ixgbe/ixgbe.h +++ b/drivers/net/ixgbe/ixgbe.h @@ -543,16 +543,22 @@ 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, diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c index 4a6826bf933..3b3dd4df4c5 100644 --- a/drivers/net/ixgbe/ixgbe_82599.c +++ b/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 diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 5483b9c3e2c..e177b5d061f 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -5130,7 +5130,7 @@ 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; diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h index 9a499a61d14..8b1abd47056 100644 --- a/drivers/net/ixgbe/ixgbe_type.h +++ b/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 */ @@ -2350,7 +2353,7 @@ 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 +2364,7 @@ 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 +2385,6 @@ 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, |