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[213.67.3.247]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-53d8268577esm2225950e87.70.2024.11.13.07.28.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Nov 2024 07:28:43 -0800 (PST) Date: Wed, 13 Nov 2024 16:28:42 +0100 From: "Edgar E. Iglesias" To: Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= Cc: qemu-devel@nongnu.org, Richard Henderson , Peter Maydell , Anton Johansson , Jason Wang , qemu-arm@nongnu.org, =?iso-8859-1?Q?Marc-Andr=E9?= Lureau , Thomas Huth , Alistair Francis , Paolo Bonzini , Gustavo Romero Subject: Re: [PATCH 14/20] hw/net/xilinx_ethlite: Access TX_CTRL register for each port Message-ID: References: <20241112181044.92193-1-philmd@linaro.org> <20241112181044.92193-15-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20241112181044.92193-15-philmd@linaro.org> User-Agent: Mutt/2.2.12 (2023-09-09) Received-SPF: pass client-ip=2a00:1450:4864:20::129; envelope-from=edgar.iglesias@gmail.com; helo=mail-lf1-x129.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org Sender: qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org X-TUID: jf7zjsSFDN/s On Tue, Nov 12, 2024 at 07:10:38PM +0100, Philippe Mathieu-Daudé wrote: > Rather than accessing the registers within the mixed RAM/MMIO > region as indexed register, declare a per-port TX_CTRL. This > will help to map the RAM as RAM (keeping MMIO as MMIO) in few > commits. > > Previous s->regs[R_TX_CTRL0] and s->regs[R_TX_CTRL1] are now > unused. Not a concern, this array will soon disappear. Reviewed-by: Edgar E. Iglesias > > Signed-off-by: Philippe Mathieu-Daudé > --- > hw/net/xilinx_ethlite.c | 15 +++++++-------- > 1 file changed, 7 insertions(+), 8 deletions(-) > > diff --git a/hw/net/xilinx_ethlite.c b/hw/net/xilinx_ethlite.c > index 1a3b295b4b..4d86851f38 100644 > --- a/hw/net/xilinx_ethlite.c > +++ b/hw/net/xilinx_ethlite.c > @@ -64,6 +64,7 @@ typedef struct XlnxXpsEthLitePort > struct { > uint32_t tx_len; > uint32_t tx_gie; > + uint32_t tx_ctrl; > > uint32_t rx_ctrl; > } reg; > @@ -139,7 +140,7 @@ eth_read(void *opaque, hwaddr addr, unsigned int size) > > case R_TX_CTRL1: > case R_TX_CTRL0: > - r = s->regs[addr]; > + r = s->port[port_index].reg.tx_ctrl; > break; > > case R_RX_CTRL1: > @@ -159,7 +160,6 @@ eth_write(void *opaque, hwaddr addr, > { > XlnxXpsEthLite *s = opaque; > unsigned int port_index = addr_to_port_index(addr); > - unsigned int base = 0; > uint32_t value = val64; > > addr >>= 2; > @@ -167,24 +167,23 @@ eth_write(void *opaque, hwaddr addr, > { > case R_TX_CTRL0: > case R_TX_CTRL1: > - if (addr == R_TX_CTRL1) > - base = 0x800 / 4; > - > if ((value & (CTRL_P | CTRL_S)) == CTRL_S) { > qemu_send_packet(qemu_get_queue(s->nic), > txbuf_ptr(s, port_index), > s->port[port_index].reg.tx_len); > - if (s->regs[base + R_TX_CTRL0] & CTRL_I) > + if (s->port[port_index].reg.tx_ctrl & CTRL_I) { > eth_pulse_irq(s); > + } > } else if ((value & (CTRL_P | CTRL_S)) == (CTRL_P | CTRL_S)) { > memcpy(&s->conf.macaddr.a[0], txbuf_ptr(s, port_index), 6); > - if (s->regs[base + R_TX_CTRL0] & CTRL_I) > + if (s->port[port_index].reg.tx_ctrl & CTRL_I) { > eth_pulse_irq(s); > + } > } > > /* We are fast and get ready pretty much immediately so > we actually never flip the S nor P bits to one. */ > - s->regs[addr] = value & ~(CTRL_P | CTRL_S); > + s->port[port_index].reg.tx_ctrl = value & ~(CTRL_P | CTRL_S); > break; > > /* Keep these native. */ > -- > 2.45.2 >