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| author | John Baldwin <jhb@FreeBSD.org> | 2021-09-13 16:57:54 +0000 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2021-10-29 23:35:15 +0000 |
| commit | 56bc3b1a95bb54ea1653c483d77871f5334637b0 (patch) | |
| tree | 1c75f545284b419e751c931bf7c24d23fcb9d7a9 | |
| parent | 075c8d9db3281fa6de48eae2e097d00b4c7349d7 (diff) | |
| download | src-56bc3b1a95bb54ea1653c483d77871f5334637b0.tar.gz src-56bc3b1a95bb54ea1653c483d77871f5334637b0.zip | |
cxgbei: Disable ISO for -SO cards without external memory.
Reported by: Jithesh Arakkan @ Chelsio
Sponsored by: Chelsio Communications
(cherry picked from commit 9b1bb0aee697352b39b3efa1843f581ca29068ba)
| -rw-r--r-- | sys/dev/cxgbe/cxgbei/icl_cxgbei.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/sys/dev/cxgbe/cxgbei/icl_cxgbei.c b/sys/dev/cxgbe/cxgbei/icl_cxgbei.c index 687fc545cebd..4b1eb0718e86 100644 --- a/sys/dev/cxgbe/cxgbei/icl_cxgbei.c +++ b/sys/dev/cxgbe/cxgbei/icl_cxgbei.c @@ -95,6 +95,7 @@ __FBSDID("$FreeBSD$"); #include <cam/scsi/scsi_message.h> #include "common/common.h" +#include "common/t4_regs.h" #include "common/t4_tcb.h" #include "tom/t4_tom.h" #include "cxgbei.h" @@ -707,6 +708,19 @@ find_offload_adapter(struct adapter *sc, void *arg) INP_WUNLOCK(inp); } +static bool +is_memfree(struct adapter *sc) +{ + uint32_t em; + + em = t4_read_reg(sc, A_MA_TARGET_MEM_ENABLE); + if ((em & F_EXT_MEM_ENABLE) != 0) + return (false); + if (is_t5(sc) && (em & F_EXT_MEM1_ENABLE) != 0) + return (false); + return (true); +} + /* XXXNP: move this to t4_tom. */ static void send_iscsi_flowc_wr(struct adapter *sc, struct toepcb *toep, int maxlen) @@ -863,7 +877,8 @@ icl_cxgbei_conn_handoff(struct icl_conn *ic, int fd) if (ic->ic_data_crc32c) icc->ulp_submode |= ULP_CRC_DATA; - if (icc->sc->tt.iso && chip_id(icc->sc) >= CHELSIO_T5) { + if (icc->sc->tt.iso && chip_id(icc->sc) >= CHELSIO_T5 && + !is_memfree(icc->sc)) { max_iso_pdus = CXGBEI_MAX_ISO_PAYLOAD / max_tx_pdu_len; ic->ic_hw_isomax = max_iso_pdus * |