diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig | 6 | ||||
| -rw-r--r-- | lib/dim/dim.c | 4 | ||||
| -rw-r--r-- | lib/dim/net_dim.c | 56 | ||||
| -rw-r--r-- | lib/kfifo.c | 3 | ||||
| -rw-r--r-- | lib/logic_pio.c | 73 |
5 files changed, 117 insertions, 25 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index f33d66fc0e86..4e6b1c3e4c98 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -631,6 +631,9 @@ config SBITMAP config PARMAN tristate "parman" if COMPILE_TEST +config OBJAGG + tristate "objagg" if COMPILE_TEST + config STRING_SELFTEST tristate "Test string functions" @@ -653,6 +656,3 @@ config GENERIC_LIB_CMPDI2 config GENERIC_LIB_UCMPDI2 bool - -config OBJAGG - tristate "objagg" if COMPILE_TEST diff --git a/lib/dim/dim.c b/lib/dim/dim.c index 439d641ec796..38045d6d0538 100644 --- a/lib/dim/dim.c +++ b/lib/dim/dim.c @@ -74,8 +74,8 @@ void dim_calc_stats(struct dim_sample *start, struct dim_sample *end, delta_us); curr_stats->cpms = DIV_ROUND_UP(ncomps * USEC_PER_MSEC, delta_us); if (curr_stats->epms != 0) - curr_stats->cpe_ratio = - (curr_stats->cpms * 100) / curr_stats->epms; + curr_stats->cpe_ratio = DIV_ROUND_DOWN_ULL( + curr_stats->cpms * 100, curr_stats->epms); else curr_stats->cpe_ratio = 0; diff --git a/lib/dim/net_dim.c b/lib/dim/net_dim.c index 5bcc902c5388..a4db51c21266 100644 --- a/lib/dim/net_dim.c +++ b/lib/dim/net_dim.c @@ -5,6 +5,62 @@ #include <linux/dim.h> +/* + * Net DIM profiles: + * There are different set of profiles for each CQ period mode. + * There are different set of profiles for RX/TX CQs. + * Each profile size must be of NET_DIM_PARAMS_NUM_PROFILES + */ +#define NET_DIM_PARAMS_NUM_PROFILES 5 +#define NET_DIM_DEFAULT_RX_CQ_MODERATION_PKTS_FROM_EQE 256 +#define NET_DIM_DEFAULT_TX_CQ_MODERATION_PKTS_FROM_EQE 128 +#define NET_DIM_DEF_PROFILE_CQE 1 +#define NET_DIM_DEF_PROFILE_EQE 1 + +#define NET_DIM_RX_EQE_PROFILES { \ + {1, NET_DIM_DEFAULT_RX_CQ_MODERATION_PKTS_FROM_EQE}, \ + {8, NET_DIM_DEFAULT_RX_CQ_MODERATION_PKTS_FROM_EQE}, \ + {64, NET_DIM_DEFAULT_RX_CQ_MODERATION_PKTS_FROM_EQE}, \ + {128, NET_DIM_DEFAULT_RX_CQ_MODERATION_PKTS_FROM_EQE}, \ + {256, NET_DIM_DEFAULT_RX_CQ_MODERATION_PKTS_FROM_EQE}, \ +} + +#define NET_DIM_RX_CQE_PROFILES { \ + {2, 256}, \ + {8, 128}, \ + {16, 64}, \ + {32, 64}, \ + {64, 64} \ +} + +#define NET_DIM_TX_EQE_PROFILES { \ + {1, NET_DIM_DEFAULT_TX_CQ_MODERATION_PKTS_FROM_EQE}, \ + {8, NET_DIM_DEFAULT_TX_CQ_MODERATION_PKTS_FROM_EQE}, \ + {32, NET_DIM_DEFAULT_TX_CQ_MODERATION_PKTS_FROM_EQE}, \ + {64, NET_DIM_DEFAULT_TX_CQ_MODERATION_PKTS_FROM_EQE}, \ + {128, NET_DIM_DEFAULT_TX_CQ_MODERATION_PKTS_FROM_EQE} \ +} + +#define NET_DIM_TX_CQE_PROFILES { \ + {5, 128}, \ + {8, 64}, \ + {16, 32}, \ + {32, 32}, \ + {64, 32} \ +} + +static const struct dim_cq_moder +rx_profile[DIM_CQ_PERIOD_NUM_MODES][NET_DIM_PARAMS_NUM_PROFILES] = { + NET_DIM_RX_EQE_PROFILES, + NET_DIM_RX_CQE_PROFILES, +}; + +static const struct dim_cq_moder +tx_profile[DIM_CQ_PERIOD_NUM_MODES][NET_DIM_PARAMS_NUM_PROFILES] = { + NET_DIM_TX_EQE_PROFILES, + NET_DIM_TX_CQE_PROFILES, +}; + struct dim_cq_moder net_dim_get_rx_moderation(u8 cq_period_mode, int ix) { diff --git a/lib/kfifo.c b/lib/kfifo.c index 117ad0e7fbf4..70dab9ac7827 100644 --- a/lib/kfifo.c +++ b/lib/kfifo.c @@ -68,7 +68,8 @@ int __kfifo_init(struct __kfifo *fifo, void *buffer, { size /= esize; - size = roundup_pow_of_two(size); + if (!is_power_of_2(size)) + size = rounddown_pow_of_two(size); fifo->in = 0; fifo->out = 0; diff --git a/lib/logic_pio.c b/lib/logic_pio.c index feea48fd1a0d..905027574e5d 100644 --- a/lib/logic_pio.c +++ b/lib/logic_pio.c @@ -35,7 +35,7 @@ int logic_pio_register_range(struct logic_pio_hwaddr *new_range) struct logic_pio_hwaddr *range; resource_size_t start; resource_size_t end; - resource_size_t mmio_sz = 0; + resource_size_t mmio_end = 0; resource_size_t iio_sz = MMIO_UPPER_LIMIT; int ret = 0; @@ -46,7 +46,7 @@ int logic_pio_register_range(struct logic_pio_hwaddr *new_range) end = new_range->hw_start + new_range->size; mutex_lock(&io_range_mutex); - list_for_each_entry_rcu(range, &io_range_list, list) { + list_for_each_entry(range, &io_range_list, list) { if (range->fwnode == new_range->fwnode) { /* range already there */ goto end_register; @@ -56,7 +56,7 @@ int logic_pio_register_range(struct logic_pio_hwaddr *new_range) /* for MMIO ranges we need to check for overlap */ if (start >= range->hw_start + range->size || end < range->hw_start) { - mmio_sz += range->size; + mmio_end = range->io_start + range->size; } else { ret = -EFAULT; goto end_register; @@ -69,16 +69,16 @@ int logic_pio_register_range(struct logic_pio_hwaddr *new_range) /* range not registered yet, check for available space */ if (new_range->flags == LOGIC_PIO_CPU_MMIO) { - if (mmio_sz + new_range->size - 1 > MMIO_UPPER_LIMIT) { + if (mmio_end + new_range->size - 1 > MMIO_UPPER_LIMIT) { /* if it's too big check if 64K space can be reserved */ - if (mmio_sz + SZ_64K - 1 > MMIO_UPPER_LIMIT) { + if (mmio_end + SZ_64K - 1 > MMIO_UPPER_LIMIT) { ret = -E2BIG; goto end_register; } new_range->size = SZ_64K; pr_warn("Requested IO range too big, new size set to 64K\n"); } - new_range->io_start = mmio_sz; + new_range->io_start = mmio_end; } else if (new_range->flags == LOGIC_PIO_INDIRECT) { if (iio_sz + new_range->size - 1 > IO_SPACE_LIMIT) { ret = -E2BIG; @@ -99,6 +99,20 @@ end_register: } /** + * logic_pio_unregister_range - unregister a logical PIO range for a host + * @range: pointer to the IO range which has been already registered. + * + * Unregister a previously-registered IO range node. + */ +void logic_pio_unregister_range(struct logic_pio_hwaddr *range) +{ + mutex_lock(&io_range_mutex); + list_del_rcu(&range->list); + mutex_unlock(&io_range_mutex); + synchronize_rcu(); +} + +/** * find_io_range_by_fwnode - find logical PIO range for given FW node * @fwnode: FW node handle associated with logical PIO range * @@ -108,26 +122,38 @@ end_register: */ struct logic_pio_hwaddr *find_io_range_by_fwnode(struct fwnode_handle *fwnode) { - struct logic_pio_hwaddr *range; + struct logic_pio_hwaddr *range, *found_range = NULL; + rcu_read_lock(); list_for_each_entry_rcu(range, &io_range_list, list) { - if (range->fwnode == fwnode) - return range; + if (range->fwnode == fwnode) { + found_range = range; + break; + } } - return NULL; + rcu_read_unlock(); + + return found_range; } /* Return a registered range given an input PIO token */ static struct logic_pio_hwaddr *find_io_range(unsigned long pio) { - struct logic_pio_hwaddr *range; + struct logic_pio_hwaddr *range, *found_range = NULL; + rcu_read_lock(); list_for_each_entry_rcu(range, &io_range_list, list) { - if (in_range(pio, range->io_start, range->size)) - return range; + if (in_range(pio, range->io_start, range->size)) { + found_range = range; + break; + } } - pr_err("PIO entry token %lx invalid\n", pio); - return NULL; + rcu_read_unlock(); + + if (!found_range) + pr_err("PIO entry token 0x%lx invalid\n", pio); + + return found_range; } /** @@ -180,14 +206,23 @@ unsigned long logic_pio_trans_cpuaddr(resource_size_t addr) { struct logic_pio_hwaddr *range; + rcu_read_lock(); list_for_each_entry_rcu(range, &io_range_list, list) { if (range->flags != LOGIC_PIO_CPU_MMIO) continue; - if (in_range(addr, range->hw_start, range->size)) - return addr - range->hw_start + range->io_start; + if (in_range(addr, range->hw_start, range->size)) { + unsigned long cpuaddr; + + cpuaddr = addr - range->hw_start + range->io_start; + + rcu_read_unlock(); + return cpuaddr; + } } - pr_err("addr %llx not registered in io_range_list\n", - (unsigned long long) addr); + rcu_read_unlock(); + + pr_err("addr %pa not registered in io_range_list\n", &addr); + return ~0UL; } |