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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-05 00:10:31 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-05 00:10:31 (GMT) |
commit | 0cda611386b2fcbf8bb32e9a5d82bfed4856fc36 (patch) | |
tree | 1647e00675ab924edfb22b69ea3872db091b8900 /drivers/infiniband/hw/mlx4/main.c | |
parent | fdf1f7ff1bd7f1c6d1d5dc2b29b6b11a4f722276 (diff) | |
parent | 7f1d25b47d919cef29388aff37e7b074e65bf512 (diff) | |
download | linux-0cda611386b2fcbf8bb32e9a5d82bfed4856fc36.tar.xz |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull base rdma updates from Doug Ledford:
"Round one of 4.8 code: while this is mostly normal, there is a new
driver in here (the driver was hosted outside the kernel for several
years and is actually a fairly mature and well coded driver). It
amounts to 13,000 of the 16,000 lines of added code in here.
Summary:
- Updates/fixes for iw_cxgb4 driver
- Updates/fixes for mlx5 driver
- Add flow steering and RSS API
- Add hardware stats to mlx4 and mlx5 drivers
- Add firmware version API for RDMA driver use
- Add the rxe driver (this is a software RoCE driver that makes any
Ethernet device a RoCE device)
- Fixes for i40iw driver
- Support for send only multicast joins in the cma layer
- Other minor fixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (72 commits)
Soft RoCE driver
IB/core: Support for CMA multicast join flags
IB/sa: Add cached attribute containing SM information to SA port
IB/uverbs: Fix race between uverbs_close and remove_one
IB/mthca: Clean up error unwind flow in mthca_reset()
IB/mthca: NULL arg to pci_dev_put is OK
IB/hfi1: NULL arg to sc_return_credits is OK
IB/mlx4: Add diagnostic hardware counters
net/mlx4: Query performance and diagnostics counters
net/mlx4: Add diagnostic counters capability bit
Use smaller 512 byte messages for portmapper messages
IB/ipoib: Report SG feature regardless of HW UD CSUM capability
IB/mlx4: Don't use GFP_ATOMIC for CQ resize struct
IB/hfi1: Disable by default
IB/rdmavt: Disable by default
IB/mlx5: Fix port counter ID association to QP offset
IB/mlx5: Fix iteration overrun in GSI qps
i40iw: Add NULL check for puda buffer
i40iw: Change dup_ack_thresh to u8
i40iw: Remove unnecessary check for moving CQ head
...
Diffstat (limited to 'drivers/infiniband/hw/mlx4/main.c')
-rw-r--r-- | drivers/infiniband/hw/mlx4/main.c | 222 |
1 files changed, 209 insertions, 13 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 42a4607..2af44c2 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -2025,16 +2025,6 @@ static ssize_t show_hca(struct device *device, struct device_attribute *attr, return sprintf(buf, "MT%d\n", dev->dev->persist->pdev->device); } -static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, - char *buf) -{ - struct mlx4_ib_dev *dev = - container_of(device, struct mlx4_ib_dev, ib_dev.dev); - return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32), - (int) (dev->dev->caps.fw_ver >> 16) & 0xffff, - (int) dev->dev->caps.fw_ver & 0xffff); -} - static ssize_t show_rev(struct device *device, struct device_attribute *attr, char *buf) { @@ -2053,17 +2043,204 @@ static ssize_t show_board(struct device *device, struct device_attribute *attr, } static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); -static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); static struct device_attribute *mlx4_class_attributes[] = { &dev_attr_hw_rev, - &dev_attr_fw_ver, &dev_attr_hca_type, &dev_attr_board_id }; +struct diag_counter { + const char *name; + u32 offset; +}; + +#define DIAG_COUNTER(_name, _offset) \ + { .name = #_name, .offset = _offset } + +static const struct diag_counter diag_basic[] = { + DIAG_COUNTER(rq_num_lle, 0x00), + DIAG_COUNTER(sq_num_lle, 0x04), + DIAG_COUNTER(rq_num_lqpoe, 0x08), + DIAG_COUNTER(sq_num_lqpoe, 0x0C), + DIAG_COUNTER(rq_num_lpe, 0x18), + DIAG_COUNTER(sq_num_lpe, 0x1C), + DIAG_COUNTER(rq_num_wrfe, 0x20), + DIAG_COUNTER(sq_num_wrfe, 0x24), + DIAG_COUNTER(sq_num_mwbe, 0x2C), + DIAG_COUNTER(sq_num_bre, 0x34), + DIAG_COUNTER(sq_num_rire, 0x44), + DIAG_COUNTER(rq_num_rire, 0x48), + DIAG_COUNTER(sq_num_rae, 0x4C), + DIAG_COUNTER(rq_num_rae, 0x50), + DIAG_COUNTER(sq_num_roe, 0x54), + DIAG_COUNTER(sq_num_tree, 0x5C), + DIAG_COUNTER(sq_num_rree, 0x64), + DIAG_COUNTER(rq_num_rnr, 0x68), + DIAG_COUNTER(sq_num_rnr, 0x6C), + DIAG_COUNTER(rq_num_oos, 0x100), + DIAG_COUNTER(sq_num_oos, 0x104), +}; + +static const struct diag_counter diag_ext[] = { + DIAG_COUNTER(rq_num_dup, 0x130), + DIAG_COUNTER(sq_num_to, 0x134), +}; + +static const struct diag_counter diag_device_only[] = { + DIAG_COUNTER(num_cqovf, 0x1A0), + DIAG_COUNTER(rq_num_udsdprd, 0x118), +}; + +static struct rdma_hw_stats *mlx4_ib_alloc_hw_stats(struct ib_device *ibdev, + u8 port_num) +{ + struct mlx4_ib_dev *dev = to_mdev(ibdev); + struct mlx4_ib_diag_counters *diag = dev->diag_counters; + + if (!diag[!!port_num].name) + return NULL; + + return rdma_alloc_hw_stats_struct(diag[!!port_num].name, + diag[!!port_num].num_counters, + RDMA_HW_STATS_DEFAULT_LIFESPAN); +} + +static int mlx4_ib_get_hw_stats(struct ib_device *ibdev, + struct rdma_hw_stats *stats, + u8 port, int index) +{ + struct mlx4_ib_dev *dev = to_mdev(ibdev); + struct mlx4_ib_diag_counters *diag = dev->diag_counters; + u32 hw_value[ARRAY_SIZE(diag_device_only) + + ARRAY_SIZE(diag_ext) + ARRAY_SIZE(diag_basic)] = {}; + int ret; + int i; + + ret = mlx4_query_diag_counters(dev->dev, + MLX4_OP_MOD_QUERY_TRANSPORT_CI_ERRORS, + diag[!!port].offset, hw_value, + diag[!!port].num_counters, port); + + if (ret) + return ret; + + for (i = 0; i < diag[!!port].num_counters; i++) + stats->value[i] = hw_value[i]; + + return diag[!!port].num_counters; +} + +static int __mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev, + const char ***name, + u32 **offset, + u32 *num, + bool port) +{ + u32 num_counters; + + num_counters = ARRAY_SIZE(diag_basic); + + if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT) + num_counters += ARRAY_SIZE(diag_ext); + + if (!port) + num_counters += ARRAY_SIZE(diag_device_only); + + *name = kcalloc(num_counters, sizeof(**name), GFP_KERNEL); + if (!*name) + return -ENOMEM; + + *offset = kcalloc(num_counters, sizeof(**offset), GFP_KERNEL); + if (!*offset) + goto err_name; + + *num = num_counters; + + return 0; + +err_name: + kfree(*name); + return -ENOMEM; +} + +static void mlx4_ib_fill_diag_counters(struct mlx4_ib_dev *ibdev, + const char **name, + u32 *offset, + bool port) +{ + int i; + int j; + + for (i = 0, j = 0; i < ARRAY_SIZE(diag_basic); i++, j++) { + name[i] = diag_basic[i].name; + offset[i] = diag_basic[i].offset; + } + + if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT) { + for (i = 0; i < ARRAY_SIZE(diag_ext); i++, j++) { + name[j] = diag_ext[i].name; + offset[j] = diag_ext[i].offset; + } + } + + if (!port) { + for (i = 0; i < ARRAY_SIZE(diag_device_only); i++, j++) { + name[j] = diag_device_only[i].name; + offset[j] = diag_device_only[i].offset; + } + } +} + +static int mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev) +{ + struct mlx4_ib_diag_counters *diag = ibdev->diag_counters; + int i; + int ret; + bool per_port = !!(ibdev->dev->caps.flags2 & + MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT); + + for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) { + /* i == 1 means we are building port counters */ + if (i && !per_port) + continue; + + ret = __mlx4_ib_alloc_diag_counters(ibdev, &diag[i].name, + &diag[i].offset, + &diag[i].num_counters, i); + if (ret) + goto err_alloc; + + mlx4_ib_fill_diag_counters(ibdev, diag[i].name, + diag[i].offset, i); + } + + ibdev->ib_dev.get_hw_stats = mlx4_ib_get_hw_stats; + ibdev->ib_dev.alloc_hw_stats = mlx4_ib_alloc_hw_stats; + + return 0; + +err_alloc: + if (i) { + kfree(diag[i - 1].name); + kfree(diag[i - 1].offset); + } + + return ret; +} + +static void mlx4_ib_diag_cleanup(struct mlx4_ib_dev *ibdev) +{ + int i; + + for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) { + kfree(ibdev->diag_counters[i].offset); + kfree(ibdev->diag_counters[i].name); + } +} + #define MLX4_IB_INVALID_MAC ((u64)-1) static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev, struct net_device *dev, @@ -2280,6 +2457,17 @@ static int mlx4_port_immutable(struct ib_device *ibdev, u8 port_num, return 0; } +static void get_fw_ver_str(struct ib_device *device, char *str, + size_t str_len) +{ + struct mlx4_ib_dev *dev = + container_of(device, struct mlx4_ib_dev, ib_dev); + snprintf(str, str_len, "%d.%d.%d", + (int) (dev->dev->caps.fw_ver >> 32), + (int) (dev->dev->caps.fw_ver >> 16) & 0xffff, + (int) dev->dev->caps.fw_ver & 0xffff); +} + static void *mlx4_ib_add(struct mlx4_dev *dev) { struct mlx4_ib_dev *ibdev; @@ -2413,6 +2601,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; ibdev->ib_dev.process_mad = mlx4_ib_process_mad; ibdev->ib_dev.get_port_immutable = mlx4_port_immutable; + ibdev->ib_dev.get_dev_fw_str = get_fw_ver_str; ibdev->ib_dev.disassociate_ucontext = mlx4_ib_disassociate_ucontext; if (!mlx4_is_slave(ibdev->dev)) { @@ -2555,9 +2744,12 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) for (j = 1; j <= ibdev->dev->caps.num_ports; j++) atomic64_set(&iboe->mac[j - 1], ibdev->dev->caps.def_mac[j]); - if (ib_register_device(&ibdev->ib_dev, NULL)) + if (mlx4_ib_alloc_diag_counters(ibdev)) goto err_steer_free_bitmap; + if (ib_register_device(&ibdev->ib_dev, NULL)) + goto err_diag_counters; + if (mlx4_ib_mad_init(ibdev)) goto err_reg; @@ -2623,6 +2815,9 @@ err_mad: err_reg: ib_unregister_device(&ibdev->ib_dev); +err_diag_counters: + mlx4_ib_diag_cleanup(ibdev); + err_steer_free_bitmap: kfree(ibdev->ib_uc_qpns_bitmap); @@ -2726,6 +2921,7 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) mlx4_ib_close_sriov(ibdev); mlx4_ib_mad_cleanup(ibdev); ib_unregister_device(&ibdev->ib_dev); + mlx4_ib_diag_cleanup(ibdev); if (ibdev->iboe.nb.notifier_call) { if (unregister_netdevice_notifier(&ibdev->iboe.nb)) pr_warn("failure unregistering notifier\n"); |