/* * Shared Memory Communications over RDMA (SMC-R) and RoCE * * Work Requests exploiting Infiniband API * * Copyright IBM Corp. 2016 * * Author(s): Steffen Maier */ #ifndef SMC_WR_H #define SMC_WR_H #include #include #include #include "smc.h" #include "smc_core.h" #define SMC_WR_MAX_CQE 32768 /* max. # of completion queue elements */ #define SMC_WR_BUF_CNT 16 /* # of ctrl buffers per link */ #define SMC_WR_TX_WAIT_FREE_SLOT_TIME (10 * HZ) #define SMC_WR_TX_WAIT_PENDING_TIME (5 * HZ) #define SMC_WR_TX_SIZE 44 /* actual size of wr_send data (<=SMC_WR_BUF_SIZE) */ #define SMC_WR_TX_PEND_PRIV_SIZE 32 struct smc_wr_tx_pend_priv { u8 priv[SMC_WR_TX_PEND_PRIV_SIZE]; }; typedef void (*smc_wr_tx_handler)(struct smc_wr_tx_pend_priv *, struct smc_link *, enum ib_wc_status); typedef bool (*smc_wr_tx_filter)(struct smc_wr_tx_pend_priv *, unsigned long); typedef void (*smc_wr_tx_dismisser)(struct smc_wr_tx_pend_priv *); struct smc_wr_rx_handler { struct hlist_node list; /* hash table collision resolution */ void (*handler)(struct ib_wc *, void *); u8 type; }; /* Only used by RDMA write WRs. * All other WRs (CDC/LLC) use smc_wr_tx_send handling WR_ID implicitly */ static inline long smc_wr_tx_get_next_wr_id(struct smc_link *link) { return atomic_long_inc_return(&link->wr_tx_id); } static inline void smc_wr_tx_set_wr_id(atomic_long_t *wr_tx_id, long val) { atomic_long_set(wr_tx_id, val); } /* post a new receive work request to fill a completed old work request entry */ static inline int smc_wr_rx_post(struct smc_link *link) { struct ib_recv_wr *bad_recv_wr = NULL; int rc; u64 wr_id, temp_wr_id; u32 index; wr_id = ++link->wr_rx_id; /* tasklet context, thus not atomic */ temp_wr_id = wr_id; index = do_div(temp_wr_id, link->wr_rx_cnt); link->wr_rx_ibs[index].wr_id = wr_id; rc = ib_post_recv(link->roce_qp, &link->wr_rx_ibs[index], &bad_recv_wr); return rc; } int smc_wr_create_link(struct smc_link *lnk); int smc_wr_alloc_link_mem(struct smc_link *lnk); void smc_wr_free_link(struct smc_link *lnk); void smc_wr_free_link_mem(struct smc_link *lnk); void smc_wr_remember_qp_attr(struct smc_link *lnk); void smc_wr_remove_dev(struct smc_ib_device *smcibdev); void smc_wr_add_dev(struct smc_ib_device *smcibdev); int smc_wr_tx_get_free_slot(struct smc_link *link, smc_wr_tx_handler handler, struct smc_wr_buf **wr_buf, struct smc_wr_tx_pend_priv **wr_pend_priv); int smc_wr_tx_put_slot(struct smc_link *link, struct smc_wr_tx_pend_priv *wr_pend_priv); int smc_wr_tx_send(struct smc_link *link, struct smc_wr_tx_pend_priv *wr_pend_priv); void smc_wr_tx_cq_handler(struct ib_cq *ib_cq, void *cq_context); bool smc_wr_tx_has_pending(struct smc_link *link, u8 wr_rx_hdr_type, smc_wr_tx_filter filter, unsigned long data); void smc_wr_tx_dismiss_slots(struct smc_link *lnk, u8 wr_rx_hdr_type, smc_wr_tx_filter filter, smc_wr_tx_dismisser dismisser, unsigned long data); int smc_wr_rx_register_handler(struct smc_wr_rx_handler *handler); int smc_wr_rx_post_init(struct smc_link *link); void smc_wr_rx_cq_handler(struct ib_cq *ib_cq, void *cq_context); #endif /* SMC_WR_H */ '>netrom/Makefile
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authorMark Rutland <mark.rutland@arm.com>2017-01-25 19:30:09 +0000
committerMark Brown <broonie@kernel.org>2017-01-25 21:05:37 +0000
commit1372cef1c697d8aac0cc923f8aa2c37d790ec9ed (patch)
treeed5f350cd559bc15ae370f0c9fd280204e98597d /net/netrom/Makefile
parentd00b74613fb18dfd0a5aa99270ee2e72d5c808d7 (diff)
regulator: fixed: Revert support for ACPI interface
This reverts commit 13bed58ce874 (regulator: fixed: add support for ACPI interface). While there does appear to be a practical need to manage regulators on ACPI systems, using ad-hoc properties to describe regulators to the kernel presents a number of problems (especially should ACPI gain first class support for such things), and there are ongoing discussions as to how to manage this. Until there is a rough consensus, revert commit 13bed58ce8748d43, which hasn't been in a released kernel yet as discussed in [1] and the surrounding thread. [1] http://lkml.kernel.org/r/20170125184949.x2wkoo7kbaaajkjk@sirena.org.uk Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Lu Baolu <baolu.lu@linux.intel.com> Cc: Mark Brown <broonie@kernel.org> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'net/netrom/Makefile')