a1af9ecca4
- Each socket upcall is now invoked with the appropriate socket buffer locked. It is not permissible to call soisconnected() with this lock held; however, so socket upcalls now return an integer value. The two possible values are SU_OK and SU_ISCONNECTED. If an upcall returns SU_ISCONNECTED, then the soisconnected() will be invoked on the socket after the socket buffer lock is dropped. - A new API is provided for setting and clearing socket upcalls. The API consists of soupcall_set() and soupcall_clear(). - To simplify locking, each socket buffer now has a separate upcall. - When a socket upcall returns SU_ISCONNECTED, the upcall is cleared from the receive socket buffer automatically. Note that a SO_SND upcall should never return SU_ISCONNECTED. - All this means that accept filters should now return SU_ISCONNECTED instead of calling soisconnected() directly. They also no longer need to explicitly clear the upcall on the new socket. - The HTTP accept filter still uses soupcall_set() to manage its internal state machine, but other accept filters no longer have any explicit knowlege of socket upcall internals aside from their return value. - The various RPC client upcalls currently drop the socket buffer lock while invoking soreceive() as a temporary band-aid. The plan for the future is to add a new flag to allow soreceive() to be called with the socket buffer locked. - The AIO callback for socket I/O is now also invoked with the socket buffer locked. Previously sowakeup() would drop the socket buffer lock only to call aio_swake() which immediately re-acquired the socket buffer lock for the duration of the function call. Discussed with: rwatson, rmacklem |
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| .. | ||
| common | ||
| sys | ||
| ulp | ||
| bin2h.pl | ||
| cxgb_adapter.h | ||
| cxgb_config.h | ||
| cxgb_include.h | ||
| cxgb_ioctl.h | ||
| cxgb_main.c | ||
| cxgb_multiq.c | ||
| cxgb_offload.c | ||
| cxgb_offload.h | ||
| cxgb_osdep.h | ||
| cxgb_sge.c | ||
| cxgb_t3fw.c | ||
| cxgb_t3fw.h | ||
| t3b_protocol_sram.h | ||
| t3b_tp_eeprom.h | ||
| t3c_protocol_sram.h | ||
| t3c_tp_eeprom.h | ||
| t3cdev.h | ||