hw/mthca/mthca_av.c

156 		    struct mthca_ah *ah)
161 	ah->type = MTHCA_AH_PCI_POOL;
164 		ah->av   = kmalloc(sizeof *ah->av, GFP_ATOMIC);
165 		if (!ah->av)
168 		ah->type = MTHCA_AH_KMALLOC;
169 		av       = ah->av;
182 		ah->type = MTHCA_AH_ON_HCA;
183 		ah->avdma  = dev->av_table.ddr_av_base +
188 	if (ah->type == MTHCA_AH_PCI_POOL) {
189 		ah->av = dma_pool_zalloc(dev->av_table.pool,
190 					 GFP_ATOMIC, &ah->avdma);
191 		if (!ah->av)
194 		av = ah->av;
197 	ah->key = pd->ntmr.ibmr.lkey;
228 			  av, (unsigned long) ah->avdma);
234 	if (ah->type == MTHCA_AH_ON_HCA) {
243 int mthca_destroy_ah(struct mthca_dev *dev, struct mthca_ah *ah)
245 	switch (ah->type) {
248 			   (ah->avdma - dev->av_table.ddr_av_base) /
253 		dma_pool_free(dev->av_table.pool, ah->av, ah->avdma);
257 		kfree(ah->av);
264 int mthca_ah_grh_present(struct mthca_ah *ah)
266 	return !!(ah->av->g_slid & 0x80);
269 int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
272 	if (ah->type == MTHCA_AH_ON_HCA)
275 	header->lrh.service_level   = be32_to_cpu(ah->av->sl_tclass_flowlabel) >> 28;
276 	header->lrh.destination_lid = ah->av->dlid;
277 	header->lrh.source_lid      = cpu_to_be16(ah->av->g_slid & 0x7f);
278 	if (mthca_ah_grh_present(ah)) {
280 			(be32_to_cpu(ah->av->sl_tclass_flowlabel) >> 20) & 0xff;
282 			ah->av->sl_tclass_flowlabel & cpu_to_be32(0xfffff);
283 		header->grh.hop_limit     = ah->av->hop_limit;
284 		header->grh.source_gid = ah->ibah.sgid_attr->gid;
286 		       ah->av->dgid, 16);
294 	struct mthca_ah *ah   = to_mah(ibah);
296 	u32 port_num = be32_to_cpu(ah->av->port_pd) >> 24;
298 	/* Only implement for MAD and memfree ah for now. */
299 	if (ah->type == MTHCA_AH_ON_HCA)
304 	rdma_ah_set_dlid(attr, be16_to_cpu(ah->av->dlid));
305 	rdma_ah_set_sl(attr, be32_to_cpu(ah->av->sl_tclass_flowlabel) >> 28);
308 				mthca_rate_to_ib(dev, ah->av->msg_sr & 0x7,
310 	rdma_ah_set_path_bits(attr, ah->av->g_slid & 0x7F);
311 	if (mthca_ah_grh_present(ah)) {
312 		u32 tc_fl = be32_to_cpu(ah->av->sl_tclass_flowlabel);
316 				ah->av->gid_index &
318 				ah->av->hop_limit,
320 		rdma_ah_set_dgid_raw(attr, ah->av->dgid);