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Diffstat (limited to 'man/ibv_rereg_mr.3')
-rw-r--r-- | man/ibv_rereg_mr.3 | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/man/ibv_rereg_mr.3 b/man/ibv_rereg_mr.3 deleted file mode 100644 index a678437..0000000 --- a/man/ibv_rereg_mr.3 +++ /dev/null @@ -1,76 +0,0 @@ -.\" -*- nroff -*- -.\" -.TH IBV_REREG_MR 3 2016-03-13 libibverbs "Libibverbs Programmer's Manual" -.SH "NAME" -ibv_rereg_mr \- re-register a memory region (MR) -.SH "SYNOPSIS" -.nf -.B #include <infiniband/verbs.h> -.sp -.BI "int ibv_rereg_mr(struct ibv_mr " "*mr" ", int " " flags" , -.BI " struct ibv_pd * " "pd" ", void " " *addr", -.BI " size_t " " length" ", int " " access"); -.fi -.fi -.SH "DESCRIPTION" -.B ibv_rereg_mr() -Modifies the attributes of an existing memory region (MR) -.I mr\fR. -Conceptually, this call performs the functions deregister memory region -followed by register memory region. Where possible, -resources are reused instead of deallocated and reallocated. -.PP -.I flags\fR -is a bit-mask used to indicate which of the following properties of the memory region are being modified. Flags should be a combination (bit field) of: -.PP -.TP -.B IBV_REREG_MR_CHANGE_TRANSLATION \fR Change translation (location and length) -.TP -.B IBV_REREG_MR_CHANGE_PD \fR Change protection domain -.TP -.B IBV_REREG_MR_CHANGE_ACCESS \fR Change access flags -.PP -When -.B IBV_REREG_MR_CHANGE_PD -is used, -.I pd\fR -represents the new PD this MR should be registered to. -.br -When -.B IBV_REREG_MR_CHANGE_TRANSLATION -is used, -.I addr\fR. -represents the virtual address (user-space pointer) of the new MR, while -.I length\fR -represents its length. -.PP -The access and other flags are represented in the field -.I access\fR. -This field describes the desired memory protection attributes; it is either 0 or the bitwise OR of one or more of ibv_access_flags. -.TP -.SH "RETURN VALUE" -.B ibv_rereg_mr() -returns 0 on success, otherwise an error has occurred, -.I enum ibv_rereg_mr_err_code\fR -represents the error as of below. -.br -IBV_REREG_MR_ERR_INPUT - Old MR is valid, an input error was detected by libibverbs. -.br -IBV_REREG_MR_ERR_DONT_FORK_NEW - Old MR is valid, failed via dont fork on new address range. -.br -IBV_REREG_MR_ERR_DO_FORK_OLD - New MR is valid, failed via do fork on old address range. -.br -IBV_REREG_MR_ERR_CMD - MR shouldn't be used, command error. -.br -IBV_REREG_MR_ERR_CMD_AND_DO_FORK_NEW - MR shouldn't be used, command error, invalid fork state on new address range. - -.SH "NOTES" -Even on a failure, the user still needs to call ibv_dereg_mr on this MR. -.SH "SEE ALSO" -.BR ibv_reg_mr (3), -.BR ibv_dereg_mr (3), -.SH "AUTHORS" -.TP -Matan Barak <matanb@mellanox.com> -.TP -Yishai Hadas <yishaih@mellanox.com> |