cavium/octe/ethernet-rx.c

91  * @param work Work queue entry pointing to the packet.
94 static inline int cvm_oct_check_rcv_error(cvmx_wqe_t *work)
96 	if ((work->word2.snoip.err_code == 10) && (work->word1.s.len <= 64)) {
101 	if (USE_10MBPS_PREAMBLE_WORKAROUND && ((work->word2.snoip.err_code == 5) || (work->word2.snoip.err_code == 7))) {
108 		int interface = cvmx_helper_get_interface_num(work->word1.cn38xx.ipprt);
109 		int index = cvmx_helper_get_interface_index_num(work->word1.cn38xx.ipprt);
114 			uint8_t *ptr = cvmx_phys_to_ptr(work->packet_ptr.s.addr);
117 			while (i < work->word1.s.len-1) {
126 				DEBUGPRINT("Port %d received 0xd5 preamble\n", work->word1.cn38xx.ipprt);
128 				work->packet_ptr.s.addr += i+1;
129 				work->word1.s.len -= i+5;
133 				DEBUGPRINT("Port %d received 0x?d preamble\n", work->word1.cn38xx.ipprt);
135 				work->packet_ptr.s.addr += i;
136 				work->word1.s.len -= i+4;
137 				for (i = 0; i < work->word1.s.len; i++) {
142 				DEBUGPRINT("Port %d unknown preamble, packet dropped\n", work->word1.cn38xx.ipprt);
144 				cvmx_helper_dump_packet(work);
146 				cvm_oct_free_work(work);
151 		DEBUGPRINT("Port %d receive error code %d, packet dropped\n", work->word1.cn38xx.ipprt, work->word2.snoip.err_code);
152 		cvm_oct_free_work(work);
179 	/* Only allow work for our group (and preserve priorities) */
187 		cvmx_wqe_t *work;
190 			work = cvmx_pow_work_request_sync(CVMX_POW_NO_WAIT);
192 			work = NULL;
193 		CVMX_PREFETCH(work, 0);
194 		if (work == NULL)
197 		mbuf_in_hw = work->word2.s.bufs == 1;
199 			m = *(struct mbuf **)(cvm_oct_get_buffer_ptr(work->packet_ptr) - sizeof(void *));
203 		CVMX_PREFETCH(cvm_oct_device[work->word1.cn38xx.ipprt], 0);
209 		if ((work->word2.snoip.rcv_error)) {
210 			if (cvm_oct_check_rcv_error(work))
219 			m->m_pkthdr.len = m->m_len = work->word1.s.len;
227 			m->m_data += (work->packet_ptr.s.back << 7) + (work->packet_ptr.s.addr & 0x7f);
234 				DEBUGPRINT("Port %d failed to allocate mbuf, packet dropped\n", work->word1.cn38xx.ipprt);
235 				cvm_oct_free_work(work);
240 			   stored in the work entry. This is untested */
241 			if ((work->word2.s.bufs == 0)) {
242 				uint8_t *ptr = work->packet_data;
244 				if (cvmx_likely(!work->word2.s.not_IP)) {
247 					if (work->word2.s.is_v6)
255 				int segments = work->word2.s.bufs;
256 				cvmx_buf_ptr_t segment_ptr = work->packet_ptr;
257 				int len = work->word1.s.len;
287 		if (((work->word1.cn38xx.ipprt < TOTAL_NUMBER_OF_PORTS) &&
288 		    cvm_oct_device[work->word1.cn38xx.ipprt])) {
289 			struct ifnet *ifp = cvm_oct_device[work->word1.cn38xx.ipprt];
297 					if ((work->word2.s.not_IP || work->word2.s.IP_exc || work->word2.s.L4_error))
321 			DEBUGPRINT("Port %d not controlled by FreeBSD, packet dropped\n", work->word1.cn38xx.ipprt);
325 		/* Check to see if the mbuf and work share
333 			cvmx_fpa_free(work, CVMX_FPA_WQE_POOL,
336 			cvm_oct_free_work(work);