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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-04 00:04:18 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-04 00:04:18 +0300 |
commit | 5bb053bef82523a8fd78d650bca81c9f114fa276 (patch) | |
tree | 58c2fe47f60bb69230bb05d57a6c9e3f47f7b1fe /drivers/net/ethernet/mellanox/mlx5/core/cq.c | |
parent | bb2407a7219760926760f0448fddf00d625e5aec (diff) | |
parent | 159f02977b2feb18a4bece5e586c838a6d26d44b (diff) | |
download | linux-5bb053bef82523a8fd78d650bca81c9f114fa276.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) Support offloading wireless authentication to userspace via
NL80211_CMD_EXTERNAL_AUTH, from Srinivas Dasari.
2) A lot of work on network namespace setup/teardown from Kirill Tkhai.
Setup and cleanup of namespaces now all run asynchronously and thus
performance is significantly increased.
3) Add rx/tx timestamping support to mv88e6xxx driver, from Brandon
Streiff.
4) Support zerocopy on RDS sockets, from Sowmini Varadhan.
5) Use denser instruction encoding in x86 eBPF JIT, from Daniel
Borkmann.
6) Support hw offload of vlan filtering in mvpp2 dreiver, from Maxime
Chevallier.
7) Support grafting of child qdiscs in mlxsw driver, from Nogah
Frankel.
8) Add packet forwarding tests to selftests, from Ido Schimmel.
9) Deal with sub-optimal GSO packets better in BBR congestion control,
from Eric Dumazet.
10) Support 5-tuple hashing in ipv6 multipath routing, from David Ahern.
11) Add path MTU tests to selftests, from Stefano Brivio.
12) Various bits of IPSEC offloading support for mlx5, from Aviad
Yehezkel, Yossi Kuperman, and Saeed Mahameed.
13) Support RSS spreading on ntuple filters in SFC driver, from Edward
Cree.
14) Lots of sockmap work from John Fastabend. Applications can use eBPF
to filter sendmsg and sendpage operations.
15) In-kernel receive TLS support, from Dave Watson.
16) Add XDP support to ixgbevf, this is significant because it should
allow optimized XDP usage in various cloud environments. From Tony
Nguyen.
17) Add new Intel E800 series "ice" ethernet driver, from Anirudh
Venkataramanan et al.
18) IP fragmentation match offload support in nfp driver, from Pieter
Jansen van Vuuren.
19) Support XDP redirect in i40e driver, from Björn Töpel.
20) Add BPF_RAW_TRACEPOINT program type for accessing the arguments of
tracepoints in their raw form, from Alexei Starovoitov.
21) Lots of striding RQ improvements to mlx5 driver with many
performance improvements, from Tariq Toukan.
22) Use rhashtable for inet frag reassembly, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1678 commits)
net: mvneta: improve suspend/resume
net: mvneta: split rxq/txq init and txq deinit into SW and HW parts
ipv6: frags: fix /proc/sys/net/ipv6/ip6frag_low_thresh
net: bgmac: Fix endian access in bgmac_dma_tx_ring_free()
net: bgmac: Correctly annotate register space
route: check sysctl_fib_multipath_use_neigh earlier than hash
fix typo in command value in drivers/net/phy/mdio-bitbang.
sky2: Increase D3 delay to sky2 stops working after suspend
net/mlx5e: Set EQE based as default TX interrupt moderation mode
ibmvnic: Disable irqs before exiting reset from closed state
net: sched: do not emit messages while holding spinlock
vlan: also check phy_driver ts_info for vlan's real device
Bluetooth: Mark expected switch fall-throughs
Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_QCA_ROME
Bluetooth: btrsi: remove unused including <linux/version.h>
Bluetooth: hci_bcm: Remove DMI quirk for the MINIX Z83-4
sh_eth: kill useless check in __sh_eth_get_regs()
sh_eth: add sh_eth_cpu_data::no_xdfar flag
ipv6: factorize sk_wmem_alloc updates done by __ip6_append_data()
ipv4: factorize sk_wmem_alloc updates done by __ip_append_data()
...
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/cq.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/cq.c | 113 |
1 files changed, 22 insertions, 91 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cq.c b/drivers/net/ethernet/mellanox/mlx5/core/cq.c index 1016e05c7ec7..a4179122a279 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/cq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/cq.c @@ -58,8 +58,7 @@ void mlx5_cq_tasklet_cb(unsigned long data) tasklet_ctx.list) { list_del_init(&mcq->tasklet_ctx.list); mcq->tasklet_ctx.comp(mcq); - if (refcount_dec_and_test(&mcq->refcount)) - complete(&mcq->free); + mlx5_cq_put(mcq); if (time_after(jiffies, end)) break; } @@ -80,69 +79,19 @@ static void mlx5_add_cq_to_tasklet(struct mlx5_core_cq *cq) * still arrive. */ if (list_empty_careful(&cq->tasklet_ctx.list)) { - refcount_inc(&cq->refcount); + mlx5_cq_hold(cq); list_add_tail(&cq->tasklet_ctx.list, &tasklet_ctx->list); } spin_unlock_irqrestore(&tasklet_ctx->lock, flags); } -void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn) -{ - struct mlx5_core_cq *cq; - struct mlx5_cq_table *table = &dev->priv.cq_table; - - spin_lock(&table->lock); - cq = radix_tree_lookup(&table->tree, cqn); - if (likely(cq)) - refcount_inc(&cq->refcount); - spin_unlock(&table->lock); - - if (!cq) { - mlx5_core_warn(dev, "Completion event for bogus CQ 0x%x\n", cqn); - return; - } - - ++cq->arm_sn; - - cq->comp(cq); - - if (refcount_dec_and_test(&cq->refcount)) - complete(&cq->free); -} - -void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type) -{ - struct mlx5_cq_table *table = &dev->priv.cq_table; - struct mlx5_core_cq *cq; - - spin_lock(&table->lock); - - cq = radix_tree_lookup(&table->tree, cqn); - if (cq) - refcount_inc(&cq->refcount); - - spin_unlock(&table->lock); - - if (!cq) { - mlx5_core_warn(dev, "Async event for bogus CQ 0x%x\n", cqn); - return; - } - - cq->event(cq, event_type); - - if (refcount_dec_and_test(&cq->refcount)) - complete(&cq->free); -} - int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, u32 *in, int inlen) { - struct mlx5_cq_table *table = &dev->priv.cq_table; + int eqn = MLX5_GET(cqc, MLX5_ADDR_OF(create_cq_in, in, cq_context), c_eqn); + u32 dout[MLX5_ST_SZ_DW(destroy_cq_out)]; u32 out[MLX5_ST_SZ_DW(create_cq_out)]; u32 din[MLX5_ST_SZ_DW(destroy_cq_in)]; - u32 dout[MLX5_ST_SZ_DW(destroy_cq_out)]; - int eqn = MLX5_GET(cqc, MLX5_ADDR_OF(create_cq_in, in, cq_context), - c_eqn); struct mlx5_eq *eq; int err; @@ -159,6 +108,7 @@ int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, cq->cqn = MLX5_GET(create_cq_out, out, cqn); cq->cons_index = 0; cq->arm_sn = 0; + cq->eq = eq; refcount_set(&cq->refcount, 1); init_completion(&cq->free); if (!cq->comp) @@ -167,12 +117,16 @@ int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, cq->tasklet_ctx.priv = &eq->tasklet_ctx; INIT_LIST_HEAD(&cq->tasklet_ctx.list); - spin_lock_irq(&table->lock); - err = radix_tree_insert(&table->tree, cq->cqn, cq); - spin_unlock_irq(&table->lock); + /* Add to comp EQ CQ tree to recv comp events */ + err = mlx5_eq_add_cq(eq, cq); if (err) goto err_cmd; + /* Add to async EQ CQ tree to recv async events */ + err = mlx5_eq_add_cq(&dev->priv.eq_table.async_eq, cq); + if (err) + goto err_cq_add; + cq->pid = current->pid; err = mlx5_debug_cq_add(dev, cq); if (err) @@ -183,6 +137,8 @@ int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, return 0; +err_cq_add: + mlx5_eq_del_cq(eq, cq); err_cmd: memset(din, 0, sizeof(din)); memset(dout, 0, sizeof(dout)); @@ -195,23 +151,17 @@ EXPORT_SYMBOL(mlx5_core_create_cq); int mlx5_core_destroy_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq) { - struct mlx5_cq_table *table = &dev->priv.cq_table; u32 out[MLX5_ST_SZ_DW(destroy_cq_out)] = {0}; u32 in[MLX5_ST_SZ_DW(destroy_cq_in)] = {0}; - struct mlx5_core_cq *tmp; int err; - spin_lock_irq(&table->lock); - tmp = radix_tree_delete(&table->tree, cq->cqn); - spin_unlock_irq(&table->lock); - if (!tmp) { - mlx5_core_warn(dev, "cq 0x%x not found in tree\n", cq->cqn); - return -EINVAL; - } - if (tmp != cq) { - mlx5_core_warn(dev, "corruption on srqn 0x%x\n", cq->cqn); - return -EINVAL; - } + err = mlx5_eq_del_cq(&dev->priv.eq_table.async_eq, cq); + if (err) + return err; + + err = mlx5_eq_del_cq(cq->eq, cq); + if (err) + return err; MLX5_SET(destroy_cq_in, in, opcode, MLX5_CMD_OP_DESTROY_CQ); MLX5_SET(destroy_cq_in, in, cqn, cq->cqn); @@ -222,8 +172,7 @@ int mlx5_core_destroy_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq) synchronize_irq(cq->irqn); mlx5_debug_cq_remove(dev, cq); - if (refcount_dec_and_test(&cq->refcount)) - complete(&cq->free); + mlx5_cq_put(cq); wait_for_completion(&cq->free); return 0; @@ -270,21 +219,3 @@ int mlx5_core_modify_cq_moderation(struct mlx5_core_dev *dev, return mlx5_core_modify_cq(dev, cq, in, sizeof(in)); } EXPORT_SYMBOL(mlx5_core_modify_cq_moderation); - -int mlx5_init_cq_table(struct mlx5_core_dev *dev) -{ - struct mlx5_cq_table *table = &dev->priv.cq_table; - int err; - - memset(table, 0, sizeof(*table)); - spin_lock_init(&table->lock); - INIT_RADIX_TREE(&table->tree, GFP_ATOMIC); - err = mlx5_cq_debugfs_init(dev); - - return err; -} - -void mlx5_cleanup_cq_table(struct mlx5_core_dev *dev) -{ - mlx5_cq_debugfs_cleanup(dev); -} |