Date: Thu, 18 Feb 2021 09:24:04 GMT From: Navdeep Parhar <np@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: fae028dd97d8 - main - cxgbe(4): Break up t4_read_chip_settings. Message-ID: <202102180924.11I9O4av065763@gitrepo.freebsd.org>
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The branch main has been updated by np: URL: https://cgit.FreeBSD.org/src/commit/?id=fae028dd97d8fc8f9ba5153408b177481dbefd70 commit fae028dd97d8fc8f9ba5153408b177481dbefd70 Author: Navdeep Parhar <np@FreeBSD.org> AuthorDate: 2021-02-18 09:15:46 +0000 Commit: Navdeep Parhar <np@FreeBSD.org> CommitDate: 2021-02-18 09:22:42 +0000 cxgbe(4): Break up t4_read_chip_settings. Read the PF-only hardware settings directly in get_params__post_init. Split the rest into two routines used by both the PF and VF drivers: one that reads the SGE rx buffer configuration and another that verifies miscellaneous hardware configuration. MFC after: 1 week Sponsored by: Chelsio Communications --- sys/dev/cxgbe/adapter.h | 3 +- sys/dev/cxgbe/common/common.h | 2 +- sys/dev/cxgbe/common/t4_hw.c | 4 +-- sys/dev/cxgbe/t4_main.c | 16 +++++++--- sys/dev/cxgbe/t4_sge.c | 72 ++++++++++++++++++++++++------------------- sys/dev/cxgbe/t4_vf.c | 9 +++--- 6 files changed, 62 insertions(+), 44 deletions(-) diff --git a/sys/dev/cxgbe/adapter.h b/sys/dev/cxgbe/adapter.h index 4b2f86d00052..8b8e6bf339e8 100644 --- a/sys/dev/cxgbe/adapter.h +++ b/sys/dev/cxgbe/adapter.h @@ -1262,7 +1262,8 @@ void t4_sge_modload(void); void t4_sge_modunload(void); uint64_t t4_sge_extfree_refs(void); void t4_tweak_chip_settings(struct adapter *); -int t4_read_chip_settings(struct adapter *); +int t4_verify_chip_settings(struct adapter *); +void t4_init_rx_buf_info(struct adapter *); int t4_create_dma_tag(struct adapter *); void t4_sge_sysctls(struct adapter *, struct sysctl_ctx_list *, struct sysctl_oid_list *); diff --git a/sys/dev/cxgbe/common/common.h b/sys/dev/cxgbe/common/common.h index 4c387d563365..9cc923eaf2f6 100644 --- a/sys/dev/cxgbe/common/common.h +++ b/sys/dev/cxgbe/common/common.h @@ -643,7 +643,7 @@ int t4_prep_adapter(struct adapter *adapter, u32 *buf); int t4_shutdown_adapter(struct adapter *adapter); int t4_init_devlog_params(struct adapter *adapter, int fw_attach); int t4_init_sge_params(struct adapter *adapter); -int t4_init_tp_params(struct adapter *adap, bool sleep_ok); +int t4_init_tp_params(struct adapter *adap); int t4_filter_field_shift(const struct adapter *adap, int filter_sel); int t4_port_init(struct adapter *adap, int mbox, int pf, int vf, int port_id); void t4_fatal_err(struct adapter *adapter, bool fw_error); diff --git a/sys/dev/cxgbe/common/t4_hw.c b/sys/dev/cxgbe/common/t4_hw.c index b54a71a02ca4..36d8864de960 100644 --- a/sys/dev/cxgbe/common/t4_hw.c +++ b/sys/dev/cxgbe/common/t4_hw.c @@ -9677,7 +9677,7 @@ static void read_filter_mode_and_ingress_config(struct adapter *adap, * * Initialize various fields of the adapter's TP Parameters structure. */ -int t4_init_tp_params(struct adapter *adap, bool sleep_ok) +int t4_init_tp_params(struct adapter *adap) { int chan; u32 tx_len, rx_len, r, v; @@ -9691,7 +9691,7 @@ int t4_init_tp_params(struct adapter *adap, bool sleep_ok) for (chan = 0; chan < MAX_NCHAN; chan++) tpp->tx_modq[chan] = chan; - read_filter_mode_and_ingress_config(adap, sleep_ok); + read_filter_mode_and_ingress_config(adap, true); if (chip_id(adap) > CHELSIO_T5) { v = t4_read_reg(adap, A_TP_OUT_CONFIG); diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c index 18a83df763ab..f64d349b46ae 100644 --- a/sys/dev/cxgbe/t4_main.c +++ b/sys/dev/cxgbe/t4_main.c @@ -4754,13 +4754,19 @@ get_params__post_init(struct adapter *sc) sc->vres.key.size = val[1] - val[0] + 1; } - t4_init_sge_params(sc); - /* - * We've got the params we wanted to query via the firmware. Now grab - * some others directly from the chip. + * We've got the params we wanted to query directly from the firmware. + * Grab some others via other means. */ - rc = t4_read_chip_settings(sc); + t4_init_sge_params(sc); + t4_init_tp_params(sc); + t4_read_mtu_tbl(sc, sc->params.mtus, NULL); + t4_load_mtus(sc, sc->params.mtus, sc->params.a_wnd, sc->params.b_wnd); + + rc = t4_verify_chip_settings(sc); + if (rc != 0) + return (rc); + t4_init_rx_buf_info(sc); return (rc); } diff --git a/sys/dev/cxgbe/t4_sge.c b/sys/dev/cxgbe/t4_sge.c index d16f17c45614..741b1ec5ac86 100644 --- a/sys/dev/cxgbe/t4_sge.c +++ b/sys/dev/cxgbe/t4_sge.c @@ -826,16 +826,15 @@ hwsz_ok(struct adapter *sc, int hwsz) } /* - * XXX: driver really should be able to deal with unexpected settings. + * Initialize the rx buffer sizes and figure out which zones the buffers will + * be allocated from. */ -int -t4_read_chip_settings(struct adapter *sc) +void +t4_init_rx_buf_info(struct adapter *sc) { struct sge *s = &sc->sge; struct sge_params *sp = &sc->params.sge; - int i, j, n, rc = 0; - uint32_t m, v, r; - uint16_t indsz = min(RX_COPY_THRESHOLD - 1, M_INDICATESIZE); + int i, j, n; static int sw_buf_sizes[] = { /* Sorted by size */ MCLBYTES, #if MJUMPAGESIZE != MCLBYTES @@ -846,23 +845,6 @@ t4_read_chip_settings(struct adapter *sc) }; struct rx_buf_info *rxb; - m = F_RXPKTCPLMODE; - v = F_RXPKTCPLMODE; - r = sc->params.sge.sge_control; - if ((r & m) != v) { - device_printf(sc->dev, "invalid SGE_CONTROL(0x%x)\n", r); - rc = EINVAL; - } - - /* - * If this changes then every single use of PAGE_SHIFT in the driver - * needs to be carefully reviewed for PAGE_SHIFT vs sp->page_shift. - */ - if (sp->page_shift != PAGE_SHIFT) { - device_printf(sc->dev, "invalid SGE_HOST_PAGE_SIZE(0x%x)\n", r); - rc = EINVAL; - } - s->safe_zidx = -1; rxb = &s->rx_buf_info[0]; for (i = 0; i < SW_ZONE_SIZES; i++, rxb++) { @@ -907,6 +889,36 @@ t4_read_chip_settings(struct adapter *sc) if (s->safe_zidx == -1 && rxb->size1 == safest_rx_cluster) s->safe_zidx = i; } +} + +/* + * Verify some basic SGE settings for the PF and VF driver, and other + * miscellaneous settings for the PF driver. + */ +int +t4_verify_chip_settings(struct adapter *sc) +{ + struct sge_params *sp = &sc->params.sge; + uint32_t m, v, r; + int rc = 0; + const uint16_t indsz = min(RX_COPY_THRESHOLD - 1, M_INDICATESIZE); + + m = F_RXPKTCPLMODE; + v = F_RXPKTCPLMODE; + r = sp->sge_control; + if ((r & m) != v) { + device_printf(sc->dev, "invalid SGE_CONTROL(0x%x)\n", r); + rc = EINVAL; + } + + /* + * If this changes then every single use of PAGE_SHIFT in the driver + * needs to be carefully reviewed for PAGE_SHIFT vs sp->page_shift. + */ + if (sp->page_shift != PAGE_SHIFT) { + device_printf(sc->dev, "invalid SGE_HOST_PAGE_SIZE(0x%x)\n", r); + rc = EINVAL; + } if (sc->flags & IS_VF) return (0); @@ -915,14 +927,16 @@ t4_read_chip_settings(struct adapter *sc) r = t4_read_reg(sc, A_ULP_RX_TDDP_PSZ); if (r != v) { device_printf(sc->dev, "invalid ULP_RX_TDDP_PSZ(0x%x)\n", r); - rc = EINVAL; + if (sc->vres.ddp.size != 0) + rc = EINVAL; } m = v = F_TDDPTAGTCB; r = t4_read_reg(sc, A_ULP_RX_CTL); if ((r & m) != v) { device_printf(sc->dev, "invalid ULP_RX_CTL(0x%x)\n", r); - rc = EINVAL; + if (sc->vres.ddp.size != 0) + rc = EINVAL; } m = V_INDICATESIZE(M_INDICATESIZE) | F_REARMDDPOFFSET | @@ -931,14 +945,10 @@ t4_read_chip_settings(struct adapter *sc) r = t4_read_reg(sc, A_TP_PARA_REG5); if ((r & m) != v) { device_printf(sc->dev, "invalid TP_PARA_REG5(0x%x)\n", r); - rc = EINVAL; + if (sc->vres.ddp.size != 0) + rc = EINVAL; } - t4_init_tp_params(sc, 1); - - t4_read_mtu_tbl(sc, sc->params.mtus, NULL); - t4_load_mtus(sc, sc->params.mtus, sc->params.a_wnd, sc->params.b_wnd); - return (rc); } diff --git a/sys/dev/cxgbe/t4_vf.c b/sys/dev/cxgbe/t4_vf.c index 6c736e37faac..4ad5e9d7839d 100644 --- a/sys/dev/cxgbe/t4_vf.c +++ b/sys/dev/cxgbe/t4_vf.c @@ -253,10 +253,6 @@ get_params__post_init(struct adapter *sc) return (EINVAL); } - rc = t4_read_chip_settings(sc); - if (rc != 0) - return (rc); - /* * Grab our Virtual Interface resource allocation, extract the * features that we're interested in and do a bit of sanity testing on @@ -290,6 +286,11 @@ get_params__post_init(struct adapter *sc) else sc->params.max_pkts_per_eth_tx_pkts_wr = 14; + rc = t4_verify_chip_settings(sc); + if (rc != 0) + return (rc); + t4_init_rx_buf_info(sc); + return (0); }
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