cam_sim.c (147723) | cam_sim.c (168752) |
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1/*- 2 * Common functions for SCSI Interface Modules (SIMs). 3 * 4 * Copyright (c) 1997 Justin T. Gibbs. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions --- 13 unchanged lines hidden (view full) --- 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> | 1/*- 2 * Common functions for SCSI Interface Modules (SIMs). 3 * 4 * Copyright (c) 1997 Justin T. Gibbs. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions --- 13 unchanged lines hidden (view full) --- 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> |
30__FBSDID("$FreeBSD: head/sys/cam/cam_sim.c 147723 2005-07-01 15:21:30Z avatar $"); | 30__FBSDID("$FreeBSD: head/sys/cam/cam_sim.c 168752 2007-04-15 08:49:19Z scottl $"); |
31 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/malloc.h> 35#include <sys/kernel.h> | 31 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/malloc.h> 35#include <sys/kernel.h> |
36#include <sys/lock.h> 37#include <sys/mutex.h> |
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36 37#include <cam/cam.h> 38#include <cam/cam_ccb.h> 39#include <cam/cam_sim.h> 40#include <cam/cam_queue.h> 41 42#define CAM_PATH_ANY (u_int32_t)-1 43 --- 9 unchanged lines hidden (view full) --- 53cam_simq_free(struct cam_devq *devq) 54{ 55 cam_devq_free(devq); 56} 57 58struct cam_sim * 59cam_sim_alloc(sim_action_func sim_action, sim_poll_func sim_poll, 60 const char *sim_name, void *softc, u_int32_t unit, | 38 39#include <cam/cam.h> 40#include <cam/cam_ccb.h> 41#include <cam/cam_sim.h> 42#include <cam/cam_queue.h> 43 44#define CAM_PATH_ANY (u_int32_t)-1 45 --- 9 unchanged lines hidden (view full) --- 55cam_simq_free(struct cam_devq *devq) 56{ 57 cam_devq_free(devq); 58} 59 60struct cam_sim * 61cam_sim_alloc(sim_action_func sim_action, sim_poll_func sim_poll, 62 const char *sim_name, void *softc, u_int32_t unit, |
61 int max_dev_transactions, | 63 struct mtx *mtx, int max_dev_transactions, |
62 int max_tagged_dev_transactions, struct cam_devq *queue) 63{ 64 struct cam_sim *sim; 65 | 64 int max_tagged_dev_transactions, struct cam_devq *queue) 65{ 66 struct cam_sim *sim; 67 |
66 /* 67 * If this is the xpt layer creating a sim, then it's OK 68 * to wait for an allocation. 69 * 70 * XXX Should we pass in a flag to indicate that wait is OK? 71 */ 72 if (strcmp(sim_name, "xpt") == 0) 73 sim = (struct cam_sim *)malloc(sizeof(struct cam_sim), 74 M_CAMSIM, M_WAITOK); 75 else 76 sim = (struct cam_sim *)malloc(sizeof(struct cam_sim), 77 M_CAMSIM, M_NOWAIT); | 68 if (mtx == NULL) 69 return (NULL); |
78 | 70 |
79 if (sim != NULL) { 80 sim->sim_action = sim_action; 81 sim->sim_poll = sim_poll; 82 sim->sim_name = sim_name; 83 sim->softc = softc; 84 sim->path_id = CAM_PATH_ANY; 85 sim->unit_number = unit; 86 sim->bus_id = 0; /* set in xpt_bus_register */ 87 sim->max_tagged_dev_openings = max_tagged_dev_transactions; 88 sim->max_dev_openings = max_dev_transactions; 89 sim->flags = 0; 90 callout_handle_init(&sim->c_handle); 91 sim->devq = queue; | 71 sim = (struct cam_sim *)malloc(sizeof(struct cam_sim), 72 M_CAMSIM, M_NOWAIT); 73 74 if (sim == NULL) 75 return (NULL); 76 77 sim->sim_action = sim_action; 78 sim->sim_poll = sim_poll; 79 sim->sim_name = sim_name; 80 sim->softc = softc; 81 sim->path_id = CAM_PATH_ANY; 82 sim->unit_number = unit; 83 sim->bus_id = 0; /* set in xpt_bus_register */ 84 sim->max_tagged_dev_openings = max_tagged_dev_transactions; 85 sim->max_dev_openings = max_dev_transactions; 86 sim->flags = 0; 87 sim->devq = queue; 88 sim->mtx = mtx; 89 if (mtx == &Giant) { 90 sim->flags |= 0; 91 callout_init(&sim->callout, 0); 92 } else { 93 sim->flags |= CAM_SIM_MPSAFE; 94 callout_init(&sim->callout, 1); |
92 } 93 | 95 } 96 |
97 SLIST_INIT(&sim->ccb_freeq); 98 |
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94 return (sim); 95} 96 97void 98cam_sim_free(struct cam_sim *sim, int free_devq) 99{ 100 if (free_devq) 101 cam_simq_free(sim->devq); 102 free(sim, M_CAMSIM); 103} 104 105void 106cam_sim_set_path(struct cam_sim *sim, u_int32_t path_id) 107{ 108 sim->path_id = path_id; 109} | 99 return (sim); 100} 101 102void 103cam_sim_free(struct cam_sim *sim, int free_devq) 104{ 105 if (free_devq) 106 cam_simq_free(sim->devq); 107 free(sim, M_CAMSIM); 108} 109 110void 111cam_sim_set_path(struct cam_sim *sim, u_int32_t path_id) 112{ 113 sim->path_id = path_id; 114} |